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• Blind As a Bat in Multi-Monitor Hell &ndash; Free Program Inside!

  - by ToStringTheory

  If you know me personally, then you probably know that I am going blind thanks to a rare genetic eye disease.  My eye disease has already been a huge detriment to my eyesight.  One of the big things to suffer is my ability to see small things moving fast right in front of me.  On a multi-monitor setup, this makes finding the cursor absolute hell. The Problem I’ll keep this short, as I’ve basically already told you what the problem is.  On my three monitor development computer, I am constantly losing the mouse during the day.  I had used the Microsoft accessibility mousefinder (press CTRL, and it pings around the mouse).  The problem with this is, there is only an effect around 50-100 PX around the mouse, and it is a very light gray, almost unnoticeable.. For someone like me, if I am not looking at the monitor when I click the CTRL button, I have to click it multiple times and dart my eyes back and forth in a futile attempt to catch a glimpse of the action…  I had tried other cursor finders, but none I liked… The Solution So what’s a guy to do when he doesn’t like his options?  MAKE A NEW OPTION…  What else should we as developers do, am I right?  So, I went ahead and made a mousefinder of my own, with 6 separate settings to change the effect.  I am releasing it here for anyone else that may also have problems finding their mouse at times. Some of its features include: Multiple options to change to achieve the exact effect you want. If your mouse moves while it is honing in, it will hone in on its current position. Many times, I would press the button and move my mouse at the same time, and many times, the mouse happened to be at a screen edge, so I would miss it. This program will restart its animation on a new screen if the mouse changes its screen while playing. Tested on Windows 7 x64 Stylish color changing from green to red. Deployed as a ClickOnce, so easy to remove if you don't like it. Press Right CTRL to trigger effect Application lives in notification area so that you can easily reach configuration or close it. To get it to run on startup, copy its application shortcut from its startmenu directory to the “Startup” folder in your startmenu. Conclusion I understand if you don’t download this…  You don’t know me and I don’t know you.  I can only say that I have honestly NOT added any virus’ or malware to the package. Yeah, I know it’s weird Download: ‘ToString(theory) Mousefinder.zip’ CRC32: EEBCE300 MD5: 0394DA581BE6F3371B5BA11A8B24BC91 SHA-1: 2080C4930A2E7D98B81787BB5E19BB24E118991C Finally, if you do use this application - please leave a comment, or email me and tell me what you think of it. Encounter a bug or hashes no longer match? I want to know that too! <warning type=”BadPun”>Now, stop messing around and start mousing around!</warning>

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• WF4 &ndash; Guess the number game!

  - by MarkPearl

  I posted yesterday how really good WF4 was looking. Today I thought I would show some real basics that I was able to figure out. This will be a simple example, I am going to make a flowchart workflow – which will prompt the user to guess the number until they guess the right number. Lets begin… Make a new project and make it a Workflow console Application. Then select the Workflow file and drag a FlowChart (2) to point 3. This will now show a green start circle in the designer form. We are going to work with primitives to start with. We are now going to drag a few objects onto the Workflow, We drag the WriteLine, Assign & Decision items onto the designer. Once they are dragged onto the designer we will want to link them up. The order that they are linked is critical since this will determine the order of the solution. In this case, we want the system to first ask “Guess a number”, then to wait for the user to input some code, and then to display “You got it” if they got it right, and “Try again” if they got it wrong. So we now link the arrows to the objects. This is done by moving the mouse pointer over the start objects and clicking on one of the toggles and then dragging it to the next object and releasing the button over one of the toggles. This will place an arrow from the source object to the target object. Okay… pretty simple stuff – now we just need these primitive objects to do stuff. Lets start with the WriteLine primitive. We place the text in inverted commas in the Text field. Because this field accepts any valid VB expression we could have put variables etc. in there if we wanted to. The next thing we want to do is allow the user to input a number. This brings up an interesting problem, if a user were to type in a number, there would need to be someway to declare a variable to hold that value for the life of the workflow. We can achieve this by declaring a variable. To declare a variable, move your cursor over the variables tab at the bottom of the workflow, and then type the name of the new variable in the “Create Variable” field and set it as shown in the image above. Now that we have a variable, we want to call the Console.Readline method and assign the inputted value from the Console to that variable. The code that cannot be seen is actually this – Convert.ToInt32(Console.ReadLine()) We now have a workflow that first prompts the user for a number, then allows the user to type in a number. We are almost done, we just need to make the system react to the value inputted. There are a few ways we could do this, I am going to use the Decision item. So select the Decision object on the designer and then view its properties (F4 for me), and in the condition field place a condition. For simplicity sake I have decided that if the user guesses 10, they will have guessed the number. This is now the completed workflow. Its really easy to understand and shows some really powerful principles for Business applications. You can run the application and see what it does. Imagine writing business solutions that do not worry about the exact flow of objects, but simply allows a business analyst or someone to configure the solution to work exactly as the business rules would dictate. And if the rules changed six months later all they would need to do is re-drag some of the flows. Now I do not know if WF4 will allow for this, but it feels like it is a step in the right direct.

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• why client can not receive message from server (java) [migrated]

  - by user1745931

  I have just started learning java. I modified the client side code for a server/client communication program, by creating two threads for the client side, main thread for receiving user's input, and inputThread for receiving server's response. I am sure that server has sent the response to client, however, no response message is obtain at client. Here is my code. Can anyone help me to figure it out? Thanks package clientnio; import java.net.*; import java.nio.*; import java.io.*; import java.nio.channels.*; import java.util.Scanner; public class ClientNIO { public static int bufferLen = 50; public static SocketChannel client; public static ByteBuffer writeBuffer; public static ByteBuffer readBuffer; public static void main(String[] args) { writeBuffer = ByteBuffer.allocate(bufferLen); readBuffer = ByteBuffer.allocate(bufferLen); try { SocketAddress address = new InetSocketAddress("localhost",5505); System.out.println("Local address: "+ address); client=SocketChannel.open(address); client.configureBlocking(false); //readBuffer.flip(); new inputThread(readBuffer); /* String a="asdasdasdasddffasfas"; writeBuffer.put(a.getBytes()); writeBuffer.clear(); int d=client.write(writeBuffer); writeBuffer.flip(); */ while (true) { InputStream inStream = System.in; Scanner scan = new Scanner(inStream); if (scan.hasNext()==true) { String inputLine = scan.nextLine(); writeBuffer.put(inputLine.getBytes()); //writeBuffer.clear(); System.out.println(writeBuffer.remaining()); client.write(writeBuffer); System.out.println("Sending data: "+new String(writeBuffer.array())); writeBuffer.flip(); Thread.sleep(300); } } } catch(Exception e) { System.out.println(e); } } } class inputThread extends Thread { private ByteBuffer readBuffer; public inputThread(ByteBuffer readBuffer1) { System.out.println("Receiving thread starts."); this.readBuffer = readBuffer1; start(); } @Override public void run() { try { while (true) { readBuffer.flip(); int i=ClientNIO.client.read(readBuffer); if(i>0) { byte[] b=readBuffer.array(); System.out.println("Receiving data: "+new String(b)); //client.close(); //System.out.println("Connection closed."); //break; } Thread.sleep(100); } } catch (Exception e) { System.out.println(e); } } }

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• SSH from external network refused

  - by wulfsdad

  I've installed open-ssh-server on my home computer(running Lubuntu 12.04.1) in order to connect to it from school. This is how I've set up the sshd_config file: # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for #Port 22 Port 2222 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 768 # Logging SyslogFacility AUTH #LogLevel INFO LogLevel VERBOSE # Authentication: LoginGraceTime 120 PermitRootLogin no StrictModes yes RSAAuthentication yes PubkeyAuthentication yes #AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding no X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net Banner /etc/sshbanner.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass # the setting of "PermitRootLogin without-password". # If you just want the PAM account and session checks to run without # PAM authentication, then enable this but set PasswordAuthentication # and ChallengeResponseAuthentication to 'no'. UsePAM yes #specify which accounts can use SSH AllowUsers onlyme I've also configured my router's port forwarding table to include: LAN Ports: 2222-2222 Protocol: TCP LAN IP Address: "IP Address" displayed by viewing "connection information" from right-click menu of system tray Remote Ports[optional]: n/a Remote IP Address[optional]: n/a I've tried various other configurations as well, using primary and secondary dns, and also with specifying remote ports 2222-2222. I've also tried with TCP/UDP (actually two rules because my router requires separate rules for each protocol). With any router port forwarding configuration, I am able to log in with ssh -p 2222 -v localhost But, when I try to log in from school using ssh -p 2222 onlyme@IP_ADDRESS I get a "No route to host" message. Same thing when I use the "Broadcast Address" or "Default Route/Primary DNS". When I use the "subnet mask", ssh just hangs. However, when I use the "secondary DNS" I recieve a "Connection refused" message. :^( Someone please help me figure out how to make this work.

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• Dual monitor not working completely in 12.10 after upgrade

  - by Mark Baldridge

  At 12.04, dual monitors worked perfectly. After upgrading to 12.10, the primary monitor works, the second monitor only partly works. I am sure there is some difference between the releases that I have missed setting properly. System settings - Displays show both correctly as Acer 22" monitors at 1680x1050 (16:10). An icon on monitor 2 is present, but elongated; almost an artifact, since other icons on the primary screen are absent, but this one icon is there on th second monitor. Selecting the icons on both screens exist. Painting is weird on monitor 2. Launcher exists and works on both screens, but even with sticky edges off, the cursor stops at the left edge of monitor 2. Clicking on text editor on screen 2 launcer will launch gedit there. If I drag it, it leaves a trail of after images like repaint is failing. If I drive the cursor on the launcher, the help tags like "LibreOffice Writer" appear, but stay on screen unless I drag the active gedit window over them. Then part of the help bubbles are overwritten, leaving behind after images of the gedit window on screen. What is really fascinating is that the System settings - Displays is now ignoring monitor selection, after allowing it earlier. Just before this, the help popup which said "Select a monitor to change its properties; drag to rearrange its placement" actually let me do that. Maybe a trick of where I grab the edge of the monitor in the Displays setting. I just found a working handle. When I drag monitor 1 to the right of monitor 2, "Apply" and confirm, both monitors work normally (although the right monitor lets the cursor slide off the right edge onto the left edge of monitor 1 - which sounds correct). Painting of windows does not leave an after image. However, success is only temporary. The setting survives the reboot, but painting on the left monitor, now monitor 2, now replicates the issues from before. The after image of the gedit window and the small window for "Are you sure you want to close all programs and restart the computer?" are still on monitor 2 (on the left now), even though they are not real windows, nor do they have processes behind them. Curiously, in Displays, the "green" monitor on the left in the display window is matched by the right monitor color in the monitor upper left corner. Probably makes sense as the one on the right is now monitor 1. If I repeat the "drag the left monitor to the right of the right monitor on the "Displays" window, things are oriented properly, with no display artifacts as I drag windows around either screen. Also the description bubbles that pop up are overwritten on both screens, so none of those artifacts either. This goodness does not survive a reboot, however. Have not tried logging out and back in. All of this after positing that the motherboard VGA and HDMI ports could have been the issue. So, I installed an e-GeForce 7600 GT Dual DVI (I know the web thinks it is not DVI, but VGA, but the connectors are DVI). No change to the weird behavior. The good parts continue to work, the weirdness also works, and swapping monitor positions seems to cure the issue. So, is there a setting I have missed? Given "swapping" monitor 1 and 2 on the System Settings... - Displays makes it work, just not across boot, I suspect so.

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• Unintentional run-in with C# thread concurrency

  - by geekrutherford

  For the first time today we began conducting load testing on a ASP.NET application already in production. Obviously you would normally want to load test prior to releasing to a production environment, but that isn't the point here.   We ran a test which simulated 5 users hitting the application doing the same actions simultaneously. The first few pages visited seemed fine and then things just hung for a while before the test failed. While the test was running I was viewing the performance counters on the server noting that the CPU was consistently pegged at 100% until the testing tool gave up.   Fortunately the application logs all exceptions including those unhandled to the database (thanks to log4net). I checked the log and low and behold the error was:   System.ArgumentException: An item with the same key has already been added. (The rest of the stack trace intentionally omitted)   Since the code was running with debug on the line number where the exception occured was also provided. I began inspecting the code and almost immediately it hit me, the section of code responsible for the exception is trying to initialize a static class. My next question was how is this code being hit multiple times when I have a rudimentary check already in place to prevent this kind of thing (i.e. a check on a public variable of the static class before entering the initializing routine). The answer...the check fails because the value is not set before other threads have already made it through.   Not being one who consistently works with threading I wasn't quite sure how to handle this problem. Fortunately a co-worker recalled having to lock a section of code in the past but couldn't recall exactly how. After a quick search on Google the solution is as follows:   Object objLock = new Object(); lock(objLock) { //logic requiring lock }   The lock statement takes an object and tells the .NET runtime that the current thread has exclusive access while the code within brackets is executing. Once the code completes, the lock is released for another thread to utilize.   In my case, I only need to execute the inner code once to initialize my static class. So within the brackets I have a check on a public variable to prevent it from being initialized again.

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• The Connected Company: WebCenter Portal Activity Streams

  - by Michael Snow

  Guest post by Mitchell Palski, Oracle Staff Sales Consultant Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Social media is sure to have made its way into your company or government organization. Whether its discussion threads, blog posts, Facebook-style profile-pages, or just a simple Instant Messenger application; in one way or another, your employees are connected. What are the objectives of leveraging social media in your organization? Facilitating knowledge transfer More effectively organizing team events Generating inter-community discussions to solve problems Improving resource management Increasing organizational awareness Creating an environment of accountability Do any of the business objectives above stand out to you as needs? If so, consider leveraging the WebCenter Portal Activity Stream as part of your solution. In WebCenter Portal, the Activity Stream feature provides a streaming view of the activities of your connections, actions taken in portals, and business activities that looks a lot like a combined Facebook and Twitter newsfeed. Activity Stream can note when a user: Posts feedback (comments) Uploads a document Creates a new blog, page, event, or announcement Starts a new discussion Streams messages and attachments entered through WebCenter Publisher (similar to Twitter) Through Activity Stream Preferences, you can select which of these activities to show or hide from your personal Activity Stream. Here’s what you get: Real-time stream of activities with in a Portal or sub-Portal increases awareness across your organization or within a working group Complete list of user actions reduces the time-to-find for users that need to interact with the latest activities in your portal Users can publish to their groups when tasks are finished for complete group traceability and accountability, as well as improved resource management. Project discussions and shared documents that require the expertise of someone outside of a working group now get increased visibility across your organization. There’s a reason that commercial Social Media tools like Facebook and Twitter have been so successful – they spread information in an aesthetically appealing and easy to read format.  Strategically placing an Activity Feed within your Portal is analogous to sending your employees a daily newsletter, events calendar, recent documents report, and list of announcements – BUT ALL IN ONE! 

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• Is the Leptonica implementation of 'Modified Median Cut' not using the median at all?

  - by TheCodeJunkie

  I'm playing around a bit with image processing and decided to read up on how color quantization worked and after a bit of reading I found the Modified Median Cut Quantization algorithm. I've been reading the code of the C implementation in Leptonica library and came across something I thought was a bit odd. Now I want to stress that I am far from an expert in this area, not am I a math-head, so I am predicting that this all comes down to me not understanding all of it and not that the implementation of the algorithm is wrong at all. The algorithm states that the vbox should be split along the lagest axis and that it should be split using the following logic The largest axis is divided by locating the bin with the median pixel (by population), selecting the longer side, and dividing in the center of that side. We could have simply put the bin with the median pixel in the shorter side, but in the early stages of subdivision, this tends to put low density clusters (that are not considered in the subdivision) in the same vbox as part of a high density cluster that will outvote it in median vbox color, even with future median-based subdivisions. The algorithm used here is particularly important in early subdivisions, and 3is useful for giving visible but low population color clusters their own vbox. This has little effect on the subdivision of high density clusters, which ultimately will have roughly equal population in their vboxes. For the sake of the argument, let's assume that we have a vbox that we are in the process of splitting and that the red axis is the largest. In the Leptonica algorithm, on line 01297, the code appears to do the following Iterate over all the possible green and blue variations of the red color For each iteration it adds to the total number of pixels (population) it's found along the red axis For each red color it sum up the population of the current red and the previous ones, thus storing an accumulated value, for each red note: when I say 'red' I mean each point along the axis that is covered by the iteration, the actual color may not be red but contains a certain amount of red So for the sake of illustration, assume we have 9 "bins" along the red axis and that they have the following populations 4 8 20 16 1 9 12 8 8 After the iteration of all red bins, the partialsum array will contain the following count for the bins mentioned above 4 12 32 48 49 58 70 78 86 And total would have a value of 86 Once that's done it's time to perform the actual median cut and for the red axis this is performed on line 01346 It iterates over bins and check they accumulated sum. And here's the part that throws me of from the description of the algorithm. It looks for the first bin that has a value that is greater than total/2 Wouldn't total/2 mean that it is looking for a bin that has a value that is greater than the average value and not the median ? The median for the above bins would be 49 The use of 43 or 49 could potentially have a huge impact on how the boxes are split, even though the algorithm then proceeds by moving to the center of the larger side of where the matched value was.. Another thing that puzzles me a bit is that the paper specified that the bin with the median value should be located, but does not mention how to proceed if there are an even number of bins.. the median would be the result of (a+b)/2 and it's not guaranteed that any of the bins contains that population count. So this is what makes me thing that there are some approximations going on that are negligible because of how the split actually takes part at the center of the larger side of the selected bin. Sorry if it got a bit long winded, but I wanted to be as thoroughas I could because it's been driving me nuts for a couple of days now ;)

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• Wired connection not being recognized

  - by maxifick

  I'm on Ubuntu Maverick (10.10). I've read a few threads regarding wired connection problems, but haven't found a solution yet. The problem appears after I connect to a wireless network. When I disconnect wireless and plug in an internet cable, the wired connection is not recognized at all. Even the socket appears dead (there are no diodes flashing). The only solution so far seems to be restarting the computer. Network Manager then tries to connect to a Wi-Fi, but the wired connection is listed and working. I've tried sudo restart network-manager, but that doesn't solve anything. After a while, available wireless networks start appearing, but the wired still doesn't. Any ideas? Thanks in advance. Edit: Here is the dmesg output after switching off Wi-Fi and then plugging the internet cable. [18200.623543] Restarting tasks ... done. [18200.648422] video LNXVIDEO:00: Restoring backlight state [18200.707580] sky2 0000:02:00.0: eth0: phy I/O error [18200.707715] sky2 0000:02:00.0: eth0: phy I/O error [18200.707819] sky2 0000:02:00.0: eth0: phy I/O error [18200.707922] sky2 0000:02:00.0: eth0: phy I/O error [18200.708025] sky2 0000:02:00.0: eth0: phy I/O error [18200.708127] sky2 0000:02:00.0: eth0: phy I/O error [18200.708229] sky2 0000:02:00.0: eth0: phy I/O error [18200.708332] sky2 0000:02:00.0: eth0: phy I/O error [18200.708824] sky2 0000:02:00.0: eth0: enabling interface [18200.709587] ADDRCONF(NETDEV_UP): eth0: link is not ready [18202.662422] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [18203.324061] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [18211.193137] eth1: no IPv6 routers present [18212.844649] usb 5-1: new low speed USB device using ohci_hcd and address 5 [18213.017235] input: USB Optical Mouse as /devices/pci0000:00/0000:00:13.0/usb5/5-1/5-1:1.0/input/input16 [18213.017499] generic-usb 0003:0461:4D17.0004: input,hidraw0: USB HID v1.11 Mouse [USB Optical Mouse] on usb-0000:00:13.0-1/input0 After system restart, dmesg says this: [ 19.802126] sky2 0000:02:00.0: eth0: enabling interface [ 19.802394] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 20.812533] device eth0 entered promiscuous mode [ 21.495547] sky2 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control rx [ 21.495677] sky2 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control rx [ 21.496574] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

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• Best language on Linux to replace manual tasks that use SSH/Telnet? [on hold]

  - by Calab

  I've been tasked to create and maintain a web browser based interface to replace several of the manual tasks that we perform now. I currently have a "shakey" but working program written in Perl (2779 lines) that uses basic Expect coding, but it has some limitations that require a great deal of coding to get around. Because of this I am going to do a complete rewrite and want to do it "right" this time. My question is this... What would be the best language to use to create a web based interface to perform SSH/Telnet tasks that we would normally do manually? Keep in mind the following requirements: Runs on a CentOS Linux system v5.10 Http will be served by Apache2 This is an INTRANET site and only accessible within our organization. User load will be light. No more that 5 users accessing it at one time. perl 5.8.8, php 5.3.3, python 2.7.2 are available... Not sure what other languages to check for, or what modules might be installed in each language. The web interface will need to provide progress indicators and text output produced by the remote connection, in real time as it is generated. If we are running our process on multiple hosts, they should be in individual threads so that they can run side by side, not sequentially. I want the ability to "trap" on specific text generated by the remote host and display an alert to the user - such as when the remote host generates an error message. I would like to avoid as much client side scripting (javascript/vbscript) as I can. Most users will be on Windows PC's using Chrome or IE as a browser. Users will be downloading the resulting output so they can process it as they see fit. I currently have no experience with "Ajax" or the like. Most of my coding experience is old 6809 assembly, Visual Basic 6, and whatever I can cut/paste from online examples in various languages (hence my "shaky" Perl program) My coding environment is Eclipse for remote code editing, but I prefer stuff like UltraEdit if I can get a decent syntax file for the language I'm using. I do have su access on the server, but I'm not the only one using this server so I can't just upgrade/install blindly as I might impact other software currently running on the machine. One reason that I'm asking here, instead of searching (which I did) is that most replies were, "use language 'xyz', but you need to use an external SSH connection" - like I'm using Expect in my Perl script. Most also did not agree on what language that 'xyz' should be. ...so, after this long posting, can someone offer some advice?

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• How to get the height of an image and apply that height to a div? [migrated]

  - by Mick79

  I am building a mobile web app and I'm using jquerytools slider on it. i want te slider to show (in proper ratio) across all mobile devices so width of the images is 100% and height is auto in css. However as all the elements are floated and jquerytools slider requires the position be set to absolute, the containing div (#header) doesn't stretch to fit the content. I am trying to use jquery to get the height of the height of the img and apply that height to the header.... however I am having no luck. CSS: #header{ width:100%; position:relative; z-index: 20; /* box-shadow: 0 0 10px white; */ overflow: auto; } .scrollable { position:relative; overflow:hidden; width: 100%; height: 100%; /* box-shadow: 0 0 20px purple; */ /* height:198px; */ z-index: 20; overflow: auto; } .scrollable .items { /* this cannot be too large */ width:1000%; position:absolute; clear:both; /* box-shadow: 0 0 30px green; */ } .items div { float:left; width:10%; height:100%; } /* single scrollable item */ .scrollable img { /* float:left; */ width:100%; height: auto; /* height:198px; */ } /* active item */ .scrollable .active { border:2px solid #000; position:relative; cursor:default; } HTML <div id=header><!-- root element for scrollable --> <div class="scrollable" id="scrollable"> <!-- root element for the items --> <div class="items"> <div> <img src="img/img2.jpg" /> </div> <div> <img src="img/img1.jpg" /> </div> <div> <img src="img/img3.jpg" /> </div> <div> <img src="img/img4.jpg" /> </div> <div> <img src="img/img6.jpg" /> </div> </div><!-- items --> </div><!-- scrollable --> </div><!-- header -->

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• PHP or C++? I just want to choose a language and focus on it!

  - by user19177

  I love C++, but I feel I don't know if I should focus on web, so PHP, or C++. It's just an hard choice because right now I want to focus on one language and don't want to switch it a few months later. With C++ I'd program in SDL, while with PHP I don't know yet. I am not a very advanced programmer but I know basics of programming and can get going very well if determined. The problem is I just don't know.. I'm like OK! I'll go for C++! Then a minute later, wait what if I went with C#? Why this that.. ! I've read milion threads about C vs VB C# Python Ruby etc, all of them which I could find! It got me nowhere. The problem is probably I need to know something from some experts I guess.. I'm sure I'm not the only one who feels/felt like I do right now yeah? Uhm... I guess I might help you with some details so your answer may be easier to write! ( And also, if you want to say something else which is not related to PHP or C++, you can do that, I've just got to the conclusion that C++ and PHP are the ones that are worth it but yeah. C# I've discarded due to some stuff I read which says in future the projects I'd start now could just be useless and stuff like that.. ) Ok well : I'm 18 years old, and I program as hobby right now, but I do hope to go to a programming college in future. ( That would be in 2 years ). Hmm, I like programming games, and I'm mostly bothered by the fact "this language could be useless to what I need to do" ( I don't know how to explain this feeling! ) I don't know which other details I could add... I hope you guys can help me choose my path, this is really stressing me I'm wasting my time not doing anything right now because I don't know which language to use..! Thanks!

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• Help understanding my hard drive / partitioning situation... Pictures Included! :)

  - by xopenex

  So I have installed windows 7, and two different distros of linux... I have read and tried to understand things like "spanned" "extended" "primary" "swap" "dev/dev2/" "GRUB" "Windows Boot Loader/Manager" etc.... I have a very very limited understanding of all of it! :) I am trying to figure out how to get all OS boot options on one Boot manager (I'm thinking it will be GRUB), because at this point when i turn on my computer, I basically get two booting options (excluding the memtest options etc)... One options is to boot one of my Linux Distros and the second option is to boot my Windows 7. When i go with the first option, Linux boots up... when i go with the second Windows 7 option, I get the "windows boot manager screen" and I can choose Windows 7 or my other installation of Linux (Ubuntu)... In addition, I did not have swap partition from my first installation of Linux, I created it during the installation of my second distro... This is a lot of info for me, but I'm guessing that you linux Gurus, pretty much understand what is going on! Hope my question makes sense.. i will try and simplify... Can i get all 3 OS's optioned to boot from one GRUB? Can i get both Linux distros to use one swap file (I have seen this possible in other threads, but because of how my disk is partitioned, i dont know if i can do this) I hope that i dont have to start all over installing one after the other. Ive got some pics that may help understand my hard drive situation! Thanks guys! :) EDIT... i had some pics, but im a new member.. so cant post them... :( here is a description of the pics... incase i can email them or post later. [grub][3] First Screen I come to after turning on computer... "Ubuntu with linux 3.2.6" (highlighted) fires up Linux perfectly... other choice at bottom of list "Windows 7 (loader) (on dev/sda1)... brings me to the next picture below.. windows boot manager [win boot mngr][6] both options here load the os selected [Disk Manager Windows][1] picture of my hard drive situation through windows disk manager utility [gparted][2] picture of my hard drive situation through "gparted" [mycomp][4] picture of my hard drive situation through "my computer" [paragon][5] one last pic of my hard drive situation through the eyes of "paragon"

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• I am not satisfied with my career and accomplished nothing in my life. what should I do now [on hold]

  - by user2906155

  After my complete my College education I got chance to work on software programming. I work on few software and now nothing make me feel good. I don't like web-programming. Can't have too much mind to play with other people in team a designer or a senior. it's totally time wasting for me. We do integration without any source code control. copy through pen drive. I write in too many language for web-programming but know nothing about any language specially. I don't like to have a BOSS. I would like to do something on my own. From last 3 year I thing I will got a better job but I am unable to get it. I am not good at Programming nor my English is native. I have a big list for pay then my salary. I have problem with nothing. my atmosphere is about illiterate people. they abuse 24 hours a day. this thing make me sick. people watch CRIME patrol my home (watching rape in TV because it's happen to someone). I do my work from home. I don't like to live in my state. All state is one of the biggest illiterate state of my country. Once I apply for a Job in China and it's look like I can get thing Job but I don't get it. My family doesn't want me to settle anywhere else. I told my family 4 time a day that I can't live in this worst situation. Everyone (including the person who I work for) tell me that you can do it only you have money. Now I really don't know how to make money. My job not allow me to work for anyone. My productivity going down since I don't learn anything new. I thing if this happen to me for next 2 year I don't have any knowledge more then a peon. I hate it. When I was in other city then I see that if I spent 7 days their all my 7 days going better. even I go for travelling in green places then I like it. but all I hate it where I work for. When I work on other city then I see my productivity are improved and I don't hate my work. I listen a song "If you don't your love what are you doing it for". I seriously don' t know what I still live here because this place gave me nothing but depression and trouble. for people I clear that I don't belong to RICH or middle class family. All I got is doing something on my own or help of someone. affording a rental place make my run on footpath. All I save in one month is just 10$ (approximately) (actually I afford some guys's education now). Can a programmer live worst life like this. I really not happy. Today is a festival in India and I don't celebrate it because I really hate myself. I want to do suicide. someone guide me how to start solving this headache

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• Core i7-620M vs Core i5-540M

  - by Shalan

  Hi, I'm recommending a laptop to a colleague, and the specific laptop he has chosen has the above CPU chips as options. Both chips have 2-cores/4-threads. The i7-620M is a 2.66 GHz (4MB Cache) while the i5-540M is a 2.53 GHz (3MB Cache)....both Arrandale architecture. He is a .NET programmer working with SQL Server and Oracle, and occasionally uses Adobe Fireworks for web-related design elements. He also loves playing around in Adobe Premiere Pro, and does a lot of media/video work. Would you notice any significant performance difference between the 2? The laptop manufacturer claims that the battery life on both is the same irrespective of the chip used (although I find that hard to believe), but there is a major cost difference between them, with the Core i7-620M being the more expensive. According to http://ark.intel.com, the one thing that seems different (besides the obvious speeds/frequencies/etc) is a feature called "Embedded" - what is this exactly? You can see the quick comparison here - http://ark.intel.com/Compare.aspx?ids=43544,43560 I would sincerely appreciate any advice me on this. THANKS!

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• Apache - child process exited with status 255

  - by Brian

  I am running Windows 7 64-bit with an older version of (Apache 2.0.59) and PHP 5.2 - just switched from XP and wanted to keep the same versions. Everything will initially be working fine, but then I'll be trying to load a page and Apache crashes. I'll get an error in the browser that says "The connection to the server was reset while the page was loading." Then Apache stops running. Sometimes it can be restarted, but then crashes again on the next page load. Sometimes it can't even be restarted at all. Looking in the Apache error logs, I see a series of messages that goes something like: [notice] Apache/2.0.59 (Win32) PHP/5.2.13 configured -- resuming normal operations [notice] Server built: Jul 27 2006 15:55:03 [notice] Parent: Created child process 1220 [notice] Child 1220: Child process is running [notice] Child 1220: Acquired the start mutex. [notice] Child 1220: Starting 250 worker threads. [notice] Parent: child process exited with status 255 -- Restarting. I have just come from Win XP where I never had any problems - is this an issue with my Apache version on Win7? Or perhaps it's a configuration issue? Any help would be greatly appreciated, I've done days of research and found nothing helpful. Thanks, Brian

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• setsockopt EOPNOTSUPP (Operation not supported)

  - by brant

  When I strace my MySQL process, I keep finding the same error over and over: setsockopt(240, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported) futex(0x87ab944, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x87ab940, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 futex(0x87ab260, FUTEX_WAKE_PRIVATE, 1) = 1 select(13, [10 12], NULL, NULL, NULL) = 1 (in [12]) fcntl64(12, F_SETFL, O_RDWR|O_NONBLOCK) = 0 accept(12, {sa_family=AF_FILE, path="\246\32629iE"...}, [2]) = 803 fcntl64(12, F_SETFL, O_RDWR) = 0 getsockname(803, {sa_family=AF_FILE, path="/var/lib/mysql\1"...}, [28]) = 0 fcntl64(803, F_SETFL, O_RDONLY) = 0 fcntl64(803, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(803, F_SETFL, O_RDWR|O_NONBLOCK) = 0 setsockopt(803, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported) futex(0x87ab944, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x87ab940, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 futex(0x87ab260, FUTEX_WAKE_PRIVATE, 1) = 1 select(13, [10 12], NULL, NULL, NULL) = 1 (in [12]) fcntl64(12, F_SETFL, O_RDWR|O_NONBLOCK) = 0 accept(12, {sa_family=AF_FILE, path="\246\32629iE"...}, [2]) = 240 fcntl64(12, F_SETFL, O_RDWR) = 0 getsockname(240, {sa_family=AF_FILE, path="/var/lib/mysql\1"...}, [28]) = 0 fcntl64(240, F_SETFL, O_RDONLY) = 0 fcntl64(240, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(240, F_SETFL, O_RDWR|O_NONBLOCK) = 0 setsockopt(240, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported) When I look for running mysql processes I don't see anything out of the ordinary. I figured it might be someplace in my code, so I modified .htaccess to spit out a 502 error to prevent it from loading anything. The error still shows up, just less frequently. There have been quite a few threads that talk about this error, but no real answer as to how to solve it. my.conf, as per request: [mysqld] #skip-networking #log-slow-queries #safe-show-database #local-infile = 0 log-slow-queries = /var/log/mysql-slow.log max_connections = 200 query_cache_limit = 128643200 key_buffer_size = 1200144000 low_priority_updates = 1 concurrent_insert = 2 thread_cache_size = 7 query_cache_size = 662144000 table_cache = 1600 table_definition_cache = 1024 long_query_time = 2.5 open_files_limit = 2647 max_connect_errors=999999999

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• Getting client denied when accessing a wsgi graphite script

  - by Dr BDO Adams

  I'm trying to set up graphite on my Mac OS X 10.7 lion, i've set up apache to call the python graphite script via WSGI, but when i try to access it, i get a forbiden from apache and in the error log. "client denied by server configuration: /opt/graphite/webapp/graphite.wsgi" I've checked that the scripts location is allowed in httpd.conf, and the permissions of the file, but they seem correct. What do i have to do to get access. Below is the httpd.conf, which is nearly the graphite example. <IfModule !wsgi_module.c> LoadModule wsgi_module modules/mod_wsgi.so </IfModule> WSGISocketPrefix /usr/local/apache/run/wigs <VirtualHost _default_:*> ServerName graphite DocumentRoot "/opt/graphite/webapp" ErrorLog /opt/graphite/storage/log/webapp/error.log CustomLog /opt/graphite/storage/log/webapp/access.log common WSGIDaemonProcess graphite processes=5 threads=5 display-name='%{GROUP}' inactivity-timeout=120 WSGIProcessGroup graphite WSGIApplicationGroup %{GLOBAL} WSGIImportScript /opt/graphite/conf/graphite.wsgi process-group=graphite application-group=%{GLOBAL} # XXX You will need to create this file! There is a graphite.wsgi.example # file in this directory that you can safely use, just copy it to graphite.wgsi WSGIScriptAlias / /opt/graphite/webapp/graphite.wsgi Alias /content/ /opt/graphite/webapp/content/ <Location "/content/"> SetHandler None </Location> # XXX In order for the django admin site media to work you Alias /media/ "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site- packages/django/contrib/admin/media/" <Location "/media/"> SetHandler None </Location> # The graphite.wsgi file has to be accessible by apache. <Directory "/opt/graphite/webapp/"> Options +ExecCGI Order deny,allow Allow from all </Directory> </VirtualHost> Can you help?

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• Setting up Tomcat6 properly in Ubuntu 10.04

  - by aasukisuki

  We have a Tomcat6 instance running on Ubuntu 10.04LTS. Our test box was just a Windows machine running Tomcat6. Both machines (Linux and Windows) have 1GB of ram. Via the Tomcat configuration tool in windows, I was able to set the min/max/permgen sizes of the JVM. Those were set to 256/512/128 respectively. Now on the Ubuntu box, I've tried setting the JVM options in several different places including: Adding JAVA_OPTS & CATALINA_OPTS in /etc/environment Adding JAVA_OPTS in $CATALINA_HOME/bin/catalina.sh Creating setenv.sh and adding JAVA_OPTS in $CATALINA_HOME/bin Adding JAVA_OPTS directly to /etc/init.d/tomcat6 Un-commenting the JAVA_OPTS and modifying it in /etc/default/tomcat6 Nearly all of those methods did not work, except for modifying /etc/init.d/tomcat6 directly (and possibly the /etc/default/tomcat6 change, but I just did that). However, my understanding is that when you change these settings, only one JVM should be used for the entire tomcat6 instance, and that memory is shared among the applications. On our windows box, tomcat6 is run as a service, and appears to behave this way. However, when I look at htop on the linux box, there are 20+ tomcat6 instances (I have an app that triggers internal jobs every X seconds using chron, so maybe these are threads? Or are they actual instances) all with those memory settings. The app runs fine for a bit, but eventually ends up locking up. I'm guessing each of these apps thinks it has 512m to work with and never GC's and then locks tomcat up completely. What is the proper way to set all of this up?

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• PfSense: dhcpd: send_packet: No buffer space available

  - by Tillebeck

  Pfsense 2.0.1-RELEASE (i386) I get a lot of entries in the log saying: dhcpd: send_packet: No buffer space available There are aprox 40 active users and they complain about prolonged times for getting an IP and periodically about problems accessing the internet, prolonged response times etc. In the log there is this entry repeatedly (periodically): Jun 10 18:27:30 dhcpd: send_packet: No buffer space available Jun 10 18:40:53 dhcpd: send_packet: No buffer space available Jun 10 19:01:15 dhcpd: send_packet: No buffer space available Jun 10 19:10:47 dhcpd: send_packet: No buffer space available Jun 10 19:31:10 dhcpd: send_packet: No buffer space available Jun 10 19:53:51 dhcpd: send_packet: No buffer space available Jun 10 20:23:32 dhcpd: send_packet: No buffer space available Jun 10 21:01:42 dhcpd: send_packet: No buffer space available Jun 10 21:04:52 dhcpd: send_packet: No buffer space available Jun 10 21:23:29 dhcpd: send_packet: No buffer space available Jun 10 21:46:05 dhcpd: send_packet: No buffer space available Jun 10 22:02:17 dhcpd: send_packet: No buffer space available Jun 10 22:02:45 dhcpd: send_packet: No buffer space available Jun 10 22:06:21 dhcpd: send_packet: No buffer space available Jun 10 22:08:45 dhcpd: send_packet: No buffer space available Jun 10 22:09:19 dhcpd: send_packet: No buffer space available Jun 10 22:22:23 dhcpd: send_packet: No buffer space available I guess it is the same periods that the users complain about reduced access to the internet. I have seen other threads about it. But none related to pfsense. Any ideas of what to do?

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• Error 2013: Lost connection to MySQL server during query when executing CHECK TABLE FOR UPGRADE

  - by Dean Richardson

  I just upgraded Ubuntu from 11.10 to 12.04. My rails app now returns the (passenger) error "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) (Mysql2::Error)". I get a similar error when I try to access mysql at the command line on my Ubuntu server using mysql -u root -p. I have mysql-server 5.5 installed. I've checked and mysql is not running. When I try to restart it, it fails. Here are some key lines from the tail of /var/log/syslog after an attempted restart: dean@dgwjasonfried:/etc/mysql$ tail -f /var/log/syslog Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: Running 'mysqlcheck' with connection arguments: '--port=3306' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' '--host=localhost' '--socket=/var/run/mysqld/mysqld.sock' Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: /usr/bin/mysqlcheck: Got error: 2013: Lost connection to MySQL server during query when executing 'CHECK TABLE ... FOR UPGRADE' Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: FATAL ERROR: Upgrade failed Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: molex_app_development.assets OK Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5107]: molex_app_development.ecd_types OK Mar 7 08:55:27 dgwjasonfried /etc/mysql/debian-start[5124]: Checking for insecure root accounts. Mar 7 08:55:27 dgwjasonfried kernel: [ 7551.769657] init: mysql main process (5064) terminated with status 1 Mar 7 08:55:27 dgwjasonfried kernel: [ 7551.769697] init: mysql respawning too fast, stopped Here is most of /etc/mysql/my.cnf: Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock Here is entries for some specific programs The following values assume you have at least 32M ram This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] Basic Settings user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp lc-messages-dir = /usr/share/mysql skip-external-locking Instead of skip-networking the default is now to listen only on localhost which is more compatible and is not less secure. bind-address = 127.0.0.1 And here are permissions for var/run/mysqld/mysqld.sock: srwxrwxrwx 1 mysql mysql 0 Mar 7 09:18 mysqld.sock I'd be grateful for any suggestions the community might have. I reviewed the related questions here and attempted some of the fixes offered but to no avail. Thanks! Dean Richardson Update: Thanks to quanta's suggestion, I looked at the /var/log/mysql/error.log file. I found error messages relating to pointers, fatal signals, and more stuff that I really couldn't make much sense of. I also found mysql man page references, however. One suggested that I try starting mysqld with the --innodb_force_recovery=# option, then attempt to dump (or drop) the offending/corrupted database or table. I worked through the escalating option levels one-by-one (innodb_force_recovery=1, innodb_force_recovery=2, etc.) This allowed me to successfully run mysql -u root -p from the command line and execute several commands. I was able to run queries on my production database, but any attempt to query, dump, or even drop my development database raised an error and led to me losing the connection to mysql. So I've made progress, but until I'm somehow able to drop or repair my development db I'm still unable to get my app to load. Any further advice or suggestions? Thanks! Dean Update: Right after running sudo mysqld --innodb_force_recover=1 from the command line, the error.log contains this: Right after retrying sudo mysqld --innodb_force_recover=1, The error.log file shows this: 130308 4:55:39 [Note] Plugin 'FEDERATED' is disabled. 130308 4:55:39 InnoDB: The InnoDB memory heap is disabled 130308 4:55:39 InnoDB: Mutexes and rw_locks use GCC atomic builtins 130308 4:55:39 InnoDB: Compressed tables use zlib 1.2.3.4 130308 4:55:39 InnoDB: Initializing buffer pool, size = 128.0M 130308 4:55:39 InnoDB: Completed initialization of buffer pool 130308 4:55:39 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130308 4:55:39 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130308 4:55:40 InnoDB: Waiting for the background threads to start 130308 4:55:41 InnoDB: 1.1.8 started; log sequence number 10259220 130308 4:55:41 InnoDB: !!! innodb_force_recovery is set to 1 !!! 130308 4:55:41 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 130308 4:55:41 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 130308 4:55:41 [Note] Server socket created on IP: '127.0.0.1'. 130308 4:55:41 [Note] Event Scheduler: Loaded 0 events 130308 4:55:41 [Note] mysqld: ready for connections. Version: '5.5.29-0ubuntu0.12.04.2' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) Then after mysql -u root -p and mysql> drop database molex_app_development; ERROR 2013 (HY000): Lost connection to MySQL server during query mysql> the error.log contains: dean@dgwjasonfried:/var/log/mysql$ tail -f error.log /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f6a3ff9ecbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f6a1c004bd8): is an invalid pointer Connection ID (thread ID): 1 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. 130308 4:55:39 [Note] Plugin 'FEDERATED' is disabled. 130308 4:55:39 InnoDB: The InnoDB memory heap is disabled 130308 4:55:39 InnoDB: Mutexes and rw_locks use GCC atomic builtins 130308 4:55:39 InnoDB: Compressed tables use zlib 1.2.3.4 130308 4:55:39 InnoDB: Initializing buffer pool, size = 128.0M 130308 4:55:39 InnoDB: Completed initialization of buffer pool 130308 4:55:39 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130308 4:55:39 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130308 4:55:40 InnoDB: Waiting for the background threads to start 130308 4:55:41 InnoDB: 1.1.8 started; log sequence number 10259220 130308 4:55:41 InnoDB: !!! innodb_force_recovery is set to 1 !!! 130308 4:55:41 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 130308 4:55:41 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 130308 4:55:41 [Note] Server socket created on IP: '127.0.0.1'. 130308 4:55:41 [Note] Event Scheduler: Loaded 0 events 130308 4:55:41 [Note] mysqld: ready for connections. Version: '5.5.29-0ubuntu0.12.04.2' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) 130308 4:58:23 [ERROR] Incorrect definition of table mysql.proc: expected column 'comment' at position 15 to have type text, found type char(64). 130308 4:58:23 InnoDB: Assertion failure in thread 140168992810752 in file fsp0fsp.c line 3639 InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 10:58:23 UTC - mysqld got signal 6 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=16777216 read_buffer_size=131072 max_used_connections=1 max_threads=151 thread_count=1 connection_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 346681 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7f7ba4f6c2f0 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7f7ba3065e60 thread_stack 0x30000 mysqld(my_print_stacktrace+0x29)[0x7f7ba3609039] mysqld(handle_fatal_signal+0x483)[0x7f7ba34cf9c3] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f7ba2220cb0] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x35)[0x7f7ba188c425] /lib/x86_64-linux-gnu/libc.so.6(abort+0x17b)[0x7f7ba188fb8b] mysqld(+0x65e0fc)[0x7f7ba37160fc] mysqld(+0x602be6)[0x7f7ba36babe6] mysqld(+0x635006)[0x7f7ba36ed006] mysqld(+0x5d7072)[0x7f7ba368f072] mysqld(+0x5d7b9c)[0x7f7ba368fb9c] mysqld(+0x6a3348)[0x7f7ba375b348] mysqld(+0x6a3887)[0x7f7ba375b887] mysqld(+0x5c6a86)[0x7f7ba367ea86] mysqld(+0x5ae3a7)[0x7f7ba36663a7] mysqld(_Z15ha_delete_tableP3THDP10handlertonPKcS4_S4_b+0x16d)[0x7f7ba34d3ffd] mysqld(_Z23mysql_rm_table_no_locksP3THDP10TABLE_LISTbbbb+0x568)[0x7f7ba3417f78] mysqld(_Z11mysql_rm_dbP3THDPcbb+0x8aa)[0x7f7ba339780a] mysqld(_Z21mysql_execute_commandP3THD+0x394c)[0x7f7ba33b886c] mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7f7ba33bb28f] mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1380)[0x7f7ba33bc6e0] mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7f7ba346119d] mysqld(handle_one_connection+0x50)[0x7f7ba3461200] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f7ba2218e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f7ba1949cbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f7b7c004b60): is an invalid pointer Connection ID (thread ID): 1 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. --Dean

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• Centos CMake Does Not Install Using gcc 4.7.2

  - by Devin Dixon

  A similar problem has been reported here with no solution:https://www.centos.org/modules/newbb/print.php?form=1&topic_id=42696&forum=56&order=ASC&start=0 I've added and upgraded gcc to centos cd /etc/yum.repos.d wget http://people.centos.org/tru/devtools-1.1/devtools-1.1.repo yum --enablerepo=testing-1.1-devtools-6 install devtoolset-1.1-gcc devtoolset-1.1-gcc-c++ scl enable devtoolset-1.1 bash The result is this for my gcc [root@hhvm-build-centos cmake-2.8.11.1]# gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/opt/centos/devtoolset-1.1/root/usr/libexec/gcc/x86_64-redhat-linux/4.7.2/lto-wrapper Target: x86_64-redhat-linux Configured with: ../configure --prefix=/opt/centos/devtoolset-1.1/root/usr --mandir=/opt/centos/devtoolset-1.1/root/usr/share/man --infodir=/opt/centos/devtoolset-1.1/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --disable-build-with-cxx --disable-build-poststage1-with-cxx --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --enable-languages=c,c++,fortran,lto --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --disable-libgcj --with-ppl --with-cloog --with-mpc=/home/centos/rpm/BUILD/gcc-4.7.2-20121015/obj-x86_64-redhat-linux/mpc-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux Thread model: posix gcc version 4.7.2 20121015 (Red Hat 4.7.2-5) (GCC) And I tried to then install cmake through http://www.cmake.org/cmake/resources/software.html#latest But I keep running into this error: Linking CXX executable ../bin/ccmake /opt/centos/devtoolset-1.1/root/usr/libexec/gcc/x86_64-redhat-linux/4.7.2/ld: CMakeFiles/ccmake.dir/CursesDialog/cmCursesMainForm.cxx.o: undefined reference to symbol 'keypad' /opt/centos/devtoolset-1.1/root/usr/libexec/gcc/x86_64-redhat-linux/4.7.2/ld: note: 'keypad' is defined in DSO /lib64/libtinfo.so.5 so try adding it to the linker command line /lib64/libtinfo.so.5: could not read symbols: Invalid operation collect2: error: ld returned 1 exit status gmake[2]: *** [bin/ccmake] Error 1 gmake[1]: *** [Source/CMakeFiles/ccmake.dir/all] Error 2 gmake: *** [all] Error 2 The problem seems to come from the new gcc installed because it works with the default install. Is there a solution to this problem?

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• Error In centos6 while compiling java classes,in tomcat6

  - by AJIT RANA

  I am newbie to Linux and Centos6. I bought server just now and want to deploy my web app in it. I am getting error while I am compiling my servlet classes. It showing me bash: javac: command not found when I try to compile my classes. But when I checked my class in '/usr/lib/jvm/java-1.6.0/bin .'I found my javac there. Then I checked javac with the help of command ./javac i got ERROR.. [root:ip_address.com]# ./javac There is insufficient memory for the Java Runtime Environment to continue. pthread_getattr_np Error occurred during initialization of VM java.lang.OutOfMemoryError: unable to create new native thread I followed the step as shown in "" Java outofmemoryerror when creating <100 threads "" which shows me command to get limits.. '[root:ipaddress.com]# ulimit -a core file size (blocks, -c) unlimited data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 278528 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited' [root:ipaddress.com]# top bash: top: command not found link :- http://stackoverflow.com/q/12913857/1746764

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• Apache Config: RSA server certificate CommonName (CN) ... NOT match server name!?

  - by mmattax

  I'm getting this in error_log when I start Apache: [Tue Mar 09 14:57:02 2010] [notice] mod_python: Creating 4 session mutexes based on 300 max processes and 0 max threads. [Tue Mar 09 14:57:02 2010] [warn] RSA server certificate CommonName (CN) `*.foo.com' does NOT match server name!? [Tue Mar 09 14:57:02 2010] [warn] RSA server certificate CommonName (CN) `www.bar.com' does NOT match server name!? [Tue Mar 09 14:57:02 2010] [notice] Apache configured -- resuming normal operations Child processes then seem to seg fault: [Tue Mar 09 14:57:32 2010] [notice] child pid 3425 exit signal Segmentation fault (11) [Tue Mar 09 14:57:35 2010] [notice] child pid 3433 exit signal Segmentation fault (11) [Tue Mar 09 14:57:36 2010] [notice] child pid 3437 exit signal Segmentation fault (11) Server is RHEL, what's going on and what do I need to do to fix this? EDIT As requested, the dump from httpd -M: Loaded Modules: core_module (static) mpm_prefork_module (static) http_module (static) so_module (static) auth_basic_module (shared) auth_digest_module (shared) authn_file_module (shared) authn_alias_module (shared) authn_anon_module (shared) authn_default_module (shared) authz_host_module (shared) authz_user_module (shared) authz_owner_module (shared) authz_groupfile_module (shared) authz_default_module (shared) include_module (shared) log_config_module (shared) logio_module (shared) env_module (shared) ext_filter_module (shared) mime_magic_module (shared) expires_module (shared) deflate_module (shared) headers_module (shared) usertrack_module (shared) setenvif_module (shared) mime_module (shared) status_module (shared) autoindex_module (shared) info_module (shared) vhost_alias_module (shared) negotiation_module (shared) dir_module (shared) actions_module (shared) speling_module (shared) userdir_module (shared) alias_module (shared) rewrite_module (shared) cache_module (shared) disk_cache_module (shared) file_cache_module (shared) mem_cache_module (shared) cgi_module (shared) perl_module (shared) php5_module (shared) python_module (shared) ssl_module (shared) Syntax OK

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• PECL install error after upgrading to OSX 10.8

  - by Clive

  I've just upgraded my OS to Mountain Lion and PECL is no longer working (it's on a test drive so no drama, but I'd like to get it working so I can upgrade the OS on my shiny new SSD as well). I'm using the native PHP installation, no macports/homebrew or anything like that. Running sudo pecl install uploadprogress (for example) produces the following terminal output: downloading uploadprogress-1.0.3.1.tgz ... Starting to download uploadprogress-1.0.3.1.tgz (9,040 bytes) .....done: 9,040 bytes 4 source files, building running: phpize grep: /usr/include/php/main/php.h: No such file or directory grep: /usr/include/php/Zend/zend_modules.h: No such file or directory grep: /usr/include/php/Zend/zend_extensions.h: No such file or directory Configuring for: PHP Api Version: Zend Module Api No: Zend Extension Api No: autom4te: need GNU m4 1.4 or later: /usr/bin/m4 ERROR: `phpize' failed I'm guessing the problem is the 3 grep lines. I've found several threads that suggest this is caused by XCode not being installed...but XCode is installed, and updated to the latest version (4.4). All the relevant symlinks to /Developer/usr/bin/* also exist as they should. m4 is currently at version: m4 (GNU M4) 1.4.13, so even though the output above contains a line pertaining to it, I don't think that can be the problem. I'm sure it's just a simple issue, anyone got any clues?

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