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  • Spreadsheet application that can handle big data OS X

    - by Peter
    I've been working with Excel for quite a while for some statistical analysis that I do regularly. The size of the data that I'm working with has gotten much larger as of late, however. The layout of the databases in question is quite simple, usually just three rows which includes a UNIX timestamp, and EST value, a proprietary numeric value and finally an average of the rows that have a timestamp +/- 1000 that row's timestamp (little AVERAGEIFS() formula). That formula and the EST conversion are the only formulas in the sheet. I'm beginning to work with files with 500,000+ rows. Running the average formula down the entire row takes forever. The end result is the production of print-worthy graphs. I'm looking for either a UNIX CL utility or separate spreadsheet/database application that can handle this amount of data without melting my CPU or making me wait an hour. Is there anything out there? TL;DR: Simple excel sheet with over half a million rows is getting too slow to work with. OS X alternatives?

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  • Why am I getting 'undefined method' exceptions when executing 'run_list add', 'run_list remove' and 'rackspace server delete'?

    - by Peter Groves
    [Originally posted this to opscode forum, got no response] I’m testing out a free hosted chef-server account and multiple subcommands are failing with ‘Unexpected Errors’. Perhaps my version and the server version are incompatible? OS: Ubuntu 12.04LTS Local Chef: 10.12.0 (Installed through gem) Local Ruby: 1.8.7 Also, the workstation machine has been manually configured, but the client(s) I’ve been experimenting with are launched with the Rackspace plugin (using ‘knife rackspace server create…’) The problem commands seem to fail when talking to the host chef-server, however, before it ever tries to modify the client, so I don’t believe that’s where the problem exists. The virtual-servers that are launched by ‘knife rackspace server create’ are launched properly but then deleting them with knife fails. If I include a recipe in the run_list when I create the server, the recipe is properly added to the run_list. If I try to add it later or remove the one that there server was initialized with, those commands fail. Here is the output of a few relevant commands (with stacktraces): https://gist.github.com/7100ada3fd6690113697

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  • How do you get AWS VPC EC2 instances to be able to see the AWS APIs?

    - by Peter Mounce
    We're spinning up infrastructure inside of an AWS VPC via CloudFormation. We're using auto-scaling groups to bring up VPC-EC2 instances (so, we don't bring up instances directly; ASGs manage that). Inside of a PVC, EC2 instances only have a private IP; they cannot see the outside world without further work. When these instances spin up, we have some bootstrap tasks that require talking to the various AWS APIs. We also have some ongoing tasks that require AWS API traffic. How are you tackling this apparent chicken-egg problem? We've read about: NAT instances - but don't like this so much because it's another layer to our stack. assigning elastic-IPs to each VPC instance that needs to talk - but a) they all do, and b) since we're using ASGs, we don't know which instances to assign EIPs to at provision-time, and c) we'd need to set up something to monitor those ASGs and assign EIPs when instances are terminated and replaced spinning up an instance (actually, a load-balanced pair, probably spanning AZs) to act as an AWS-API proxy for all API traffic I guess I'm wondering whether there's some kind of back-door we can open that allows our VPC EC2 instances access to the AWS API endpoints, but nothing else, for cheap-complexity setup, that doesn't add another network-hop layer to our infrastructure for serving requests.

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  • VMWare Workstation 8 Disk I/O & Hard Faults

    - by Scott
    I have VMWare Workstation 8 installed on a host machine with the following specs: Intel i5 2500k CPU 16GB DDR3 1600 ram 1TB Western Digital Caviar Black HD I have two Windows 7 virtual machines configured (currently running one at a time but will be operating both at once when my 32GB RAM kit arrives in a couple days). Each one is configured with 8GB of RAM and no tweaks/performance customizations or anything done. All of the VMWare settings are the defaults. When I boot into these machines and run various programs (Visual Studio, Outlook, etc), I can hear the disk thrashing quite a bit and checking Resource Monitor, I can see that I'm getting anywhere between 300-800 hard faults per second. From the host machine, it shows they're coming from the VMWare image. If I go to the virtual machine, whatever app I'm currently loading is the image that's causing the hard faults. As I understand it, hard faults are (simply) when an address in memory has been swapped out to the page file and has to be read from the page file instead of from memory. I don't understand why this is happening though. With 8GB of ram on the guest machine and 6.5GB available, what could be causing this? I know Windows 7 supposedly improved on page file management over XP but it seems excessive for this kind of slowdown, disk thrashing and high hard fault count when I have that much free RAM. Is there anything I can to to improve the performance in my guest machines? On the host machine, I can open/run any applications at all and hard faults stays around 0 with low disk I/O.

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  • load balancing two web servers each on two different isp's?

    - by Scott
    I have two ISP's that provide me hosting via apache / php / mysql. I am running drupal on them. On occasion the mysql server will go away (crash), so I was hoping to find a reasonable way to have a fail over, if server A SQL is down, all traffic is sent to server B. I know traditionally this is handled in DNS where a second alternate ip is given if there is a problem - or similar. But I do not have control over the isp, other than I can run php, perl and the usual apache stuff. Also, I have static ip's on each isp, and I can create dns entries (A/CNAME/TXT). So, I was hoping there might be a way for me to have a script that checks if drupal has a problem, and if so, somehow alter dns, or ? Or, any other ideas? (other than spending lots more $ on a better isp)

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  • Vantec NexStar NAS Encloser - Writing large files

    - by peter
    I have one of these 'Vantec NexStar LX - NST-475LX-BK' drive enclosures. It is a NAS device. When I write a file to the device using eSata, or a SMB share I cannot write files over 4GB. I think this is because the drive is formatted with FAT32. But when I access the device using FTP it doesn't matter. I can write files of any size. E.g. I wrote one on there last night which was 30GB. Does this make any sense? Why? I guess the most important thing for me is data integrity.

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  • Postgres pgpass windows - not working

    - by Scott
    DB: Postgres 9.0 Client: Windows 7 Server Windows 2008, 64bit I'm trying to connect remotely to a postgres instance for purposes of performing a pg_dump to my local machine. Everything works from my client machine, except that I need to provide a password at the password prompt, and I'd ultimately like to batch this with a script. I've followed the instructions here: http://www.postgresql.org/docs/current/static/libpq-pgpass.html but it's not working. To recap, I've created a file on the client (and tried the server as well): C:/Users/postgres/AppData/postgresql/pgpass.conf, where postgresql is the db user. The file has one line with the following data: *:5432:*postgres:[mypassword] (also tried explicit ip/dbname values, all asterisks, and every combination in between. (I've also tried replacing each '*' with [localhost|myip] and [mydatabasename] respectively. From my client machine, I connect using: pg_dump -h [myip] -U postgres -w [mydbname] [mylocaldumpfile] I'm presuming that I need to provide the '-w' switch in order to ignore password prompt, at which point it should look in the AppData directory on the server. It just comes back with "connection to database failed: fe_sendauth: no password supplied. Any insights are appreciated. As a hack workaround, if there was a way I could tell the windows batch file on my client machine to inject the password at the postgres prompt, that would work as well. Thanks.

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  • Why has the NoScript icon disappeared?

    - by Peter Mortensen
    Why has the appearence of NoScript changed? Using Noscript in Firefox (Microsoft Windows): Until now there has been an icon (the S icon) in the lower right of the screen. But now there is an button instead with the text "Options". Left clicking this button seems to bring up the menu as right clicking the old icon. Can I restore the previous state? Is there an auto-update function in NoScript and if so could it have caused the change? If it exists can the auto-update function be disabled? Platform: Firefox 3.0.6, NoScript 1.9.0.6, Windows XP 64 bit, 8 GB RAM.

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  • How to add "most recent emails from this user" to Gmail inbox as a sidebar

    - by Scott B
    I use and love gmail. However, since i use email for customer support, I'm always doing a cross reference lookup via the search feature to see my past conversations with the person whose email I'm reading. I'd love to have a right sidebar widget that shows me, for any email I choose to read, the list of previous conversations/emails with that person. Is this possible? I'm using Chrome Ideally, this sidebar would bump or replace the contextual ads that now display over there.

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  • Emacs protection against simultaneous editing by same user

    - by Peter Eisentraut
    Emacs has elaborate protection against simultaneous editing by two different users. If there a way to have that same facility for protecting against simultaneous editing by the same user? With lots of windows and workspaces open, it's easy to reopen a file that you already have open somewhere else. But because it does not detect a lock conflict when you open the file, you will only learn about the collision when you save.

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  • Linux Mint Debian Cinammon soundcard selection

    - by Peter Gridling
    i use said OS and i am missing a window or setting to set the default soundcard. I have a builtin analog soundcard which works just fine and is set as default, also i have a usb headset which works fine eg. with mumble i set input and output on my headset and it just works, also the mute button and volume control on the headset works, but on the default soundcard lol. what i am missing is to set my headset as the default soudcard. i also tried some stuff from there: http://wiki.debian.org/ALSA/ but it seems that alsa is not supported 100% :( some1 here to help? best regards

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  • How do I setup a local DNS server on Mac OS Lion?

    - by Peter Kovacs
    I had some serious lag to resolve website address and sometimes things simply wouldn't load (pages kept loading for 5+ minutes without even a timeout error). So I had setup a local dns server/cache using BIND on Leopard and Snow Leopard. Now that I have Lion, i have the same problem, but the instructions no longer apply to Lion and I can't find a way to do it. Has anyone attempted to do this? Are there viable alternatives for DNS servers on OS X 10.7? For those who are wondering I already tried several external DNS server. Only my computer has this issue on the network.

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  • hMailserver: Secure SMTP SetUP - Trusted Cert Issue

    - by Peter
    I'm trying to configure hMailserver with a 3rd party SSL cert. I'v 1) Installed the SSL key & cert 2) Placed the hash named CA and intermediate in to the \externals\cs folder Now, the connection between the mail client and the server is secure and works. The issue is that mail clients outlook, apple mail, others issue an untrusted cert warning. I've followed several threads on the forums, but none seem to solve this problem

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  • Random and Selective ARP blindness in VMWare ESXi 4.1

    - by Peter Grace
    We have multiple VMWare ESX servers spread out amongst our company, doing various tasks. One particular ESXi host is exhibiting very peculiar behavior. We detect it when our monitoring system (Orion) notifies us that it can no longer ping the box. Upon jumping on the local console of the guest in question, we see that it cannot ping any new addresses that aren't already in its ARP table. At first we thought that the problem was just related to one of our guests, as the problem seemed to always happen to another guest, DevRedis. However, this afternoon the problem swapped and started happening on ApacheBox rather than DevRedis. When I have been fortunate to catch the problem, I have run tcpdump on both sides of the connection (one side being vmware, the other side being a physical webserver) and have noticed the following course of events: Guest ApacheBox sends an ARP request for the physical address of server WindowsBeast WindowsBeast tenders an ARP is-at back to the network indicating its physical mac address. ApacheBox never sees the ARP is-at response. The ESX host in question is running VMware ESXi, 4.1.0, 348481 The two guests (DevRedis and ApacheBox) are both running CentOS 6.3, however they are running two separate kernel versions ( 2.6.32-279.9.1.el6.x86_64 and 2.6.32-279.el6.x86_64 ) so I'm not entirely sure it's a CentOS problem. Does anyone have any thoughts on what might cause this? Has anyone run into it before?

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  • How to migrate WinXP from failing old HD to new one

    - by Péter Török
    Following this issue, we have all our important data backed up now. I also bought and installed a new replacement hard disk (WD 160GB PATA) as secondary (slave) drive. I created two primary NTFS partitions on it: a 40 GB system partition, and a 110GB data partition. In theory I could start reinstalling WinXP from scratch on the new system partition, then copying over all user data from the old drive to the new data partition. Once this is done, I could even throw away the old drive, or keep it just to see what happens. (Note: I don't want to clone the whole drive as it contains a dual boot setup with an old Linux installation which I don't need anymore, and anyway, a fresh reinstall would do WinXP good to get rid of many years' clutter.) However, I am lazy :-) The old HD is still functioning, the problem has not manifested again since. So I feel there is no need to hurry with a complete OS reinstall. What I don't know though is whether I will be able to install WinXP on the new system partition at a later stage without affecting the contents of the data partition on the same drive. If this is possible, I can just move over all our data to the new data partition to have it safe, then continue running WinXP from the old drive as long as it works. Does anyone see any problems/risks with this plan?

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  • Application Virtualization

    - by Peter Versnee
    I have been looking for a solution to virtualize my desktop application as a SaaS. After picking Citrix XenApp as the best solution for my case and trying for ever to get it to work (with some more experienced people) I can't help but to conclude that Citrix has too much problems for my case. Every time I fix one thing some other thing pops up. As I can't imagine Citrix XenApp is the only way to deliver my application to my clients, I'd like to ask you experienced guys if you think there is an other way to deliver it whilst meeting my requirements. I've got no money issues - time on the other hand... My requirements: My application must run on a windows server; The application should be virtualized with the application window only (no desktop); Content Redirection (my application is the only one virtualized, so PDF, DOC(X) etc. is on the users' system); Easy user management; SSO;* Cross platform (Windows, Linux, Mac OSX).* I truly hope I don't annoy you with another of the same question. I've tried to find the same question here and - obviously - didn't found it. *) these I can live without, however very much appreciated

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  • How do I get around restrictive email policies by ISP?

    - by Peter Turner
    Apparently we've been restricted (though packet filtering) to some arbitrarily small and untenable number of emails a day by some bankrupt ISP (and they say that's how it's always been chortle). We've been using our own mail server for the last 15 years, and only recently they've been giving us guff. Is there a way for a legitimate business to email their clients, who really want to receive these emails, by bypassing the ISP? The way we've been doing it is by breaking up into 20 or 30 emails, but that gets complicated and requires a lot of manual labor by the receptionist, and unless she's really careful we wind up emailing lots of people twice. So what are my options (Hosted Email, Lithuanian Proxy Server, Different ISP, not writing awful PHP that sends out zillions of emails and gets us blacklisted)?

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  • SugarCRM CE Won't Install on Ubuntu 10.10

    - by Trenton Scott
    I have a fresh copy of Ubuntu 10.10 server with a working LAMP installation. I downloaded SugarCRM and browsed to its directory to open the installer (via Firefox). The installer appears fine, I accept the license agreement, and it proceeds to check file permissions. It advises that several directories need looser permissions (chmod 766), and I adjust them accordingly. After making the changes, I click "recheck" and the page just reloads as blank (white). There are no errors visible, nothing in the server logs (Apache/PHP) and installation cannot continue. I'm able to get back to the installation tool by readjusting permissions back to my default (0755 for directories, 0644 for files). All files/folders are owned by root and the www-data group. Any idea about what's wrong?

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  • How do I launch a process as a specific user at startup on OS X?

    - by Scott Bonds
    I would like to run a script as a particular user on startup (not on login). I thought a launchd LaunchDaemon would do it, but 'man launchd' says: "If you wish your service to run as a certain user, in that user's environment, making it a launchd agent is the ONLY supported means of accomplishing this on Mac OS X. In other words, it is not sufficient to perform a setuid(2) to become a user in the truest sense on Mac OS X." They aren't kidding--when I try to run my script as a LaunchDaemon it doesn't work. In particular I'm trying to automate some keychain operations using the 'security' command, and it won't let me change the default keychain when I run the script through LaunchDaemon, though the script works fine when run using sudo from a shell. A LaunchAgent won't work, because the goal is for the proces to run without a user logging in and LaunchAgents only run when someone logs in. I looked at cron and the @reboot directive and that looks promising, but I read that cron is deprecated on OSX.

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  • Windows (7 & Vista) laptop monitor does not come back after closing lid

    - by Scott Vercuski
    I'm experiencing an issue with Windows Vista (and now Windows 7) with my laptop. When I close the laptop lid the monitor goes blank but will not come back on after I re-open the laptop. The screen stays blank and nothing that I do will get it to come back. The laptop is an HP DV9000 series. Has anyone else ran into this issue? One of the solutions I've seen online is to go into the device manager and replace the lid driver with something nonsensical (the website suggested pointing the driver at the sound recorder). This does solve the problem by disabling the lid but doesn't really resolve the root issue. I'm asking if anyone has any method I can use to debug what's going on. How do I tell if it is an operating system issue vs. a malfunction within the lid itself. I'd actually like the lid to function as it's meant to. Thank you!

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  • shortcut for Eventvwr > Connect to another computer

    - by Peter
    I was wondering if you can write the following action in a batch command? eventvwr (open the event viewer) Menu Action Connect to another computer Type in the name of the computer. Connect. This would make my life just a few minutes/day more efficient ;-) Update As we've just upgraded to Windows 7 and I needed a new solution, it seems to be possible like this: %windir%\system32\eventvwr.exe targethostname

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  • Two users using the same same user profile while not in a domain.

    - by Scott Chamberlain
    I have a windows server 2003 acting as a terminal server, this computer is not a member of any domain. We demo our product on the server by creating a user account. The person logs in uses the demo for a few weeks and when they are done we delete the user account. However every time we do this it creates a new folder in C:\Documents and Settings\. I know with domains you can have many users point at one profile and make it read only so all changes are dumped afterwords, but is there a way to do that when the machine is not on a domain? I would really like it if I didn't have to remote in and clean up the folders every time.

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  • Does AWS resolve same-datacenter hostnames to 10.* addresses for different customer accounts?

    - by Scott Ritchie
    If I bring up two Amazon EC2 instances and run nslookup on one for the other's hostname, amazon will return a 10.* address. This is routable within amazon, and works just fine. But does this work between different accounts? If I use one of my nodes to nslookup a hostname belonging to another customer (but still in the same datacenter) will it resolve as a 10.* address or will it give the standard public IP?

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