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  • How to Programmatically Split Data Using VBA Using Specific Logic

    - by Charlene
    This is an addition to my previous post here. The code that was previously supplied to me worked like a charm, but I am having issues modifying it adding some additional logic. I am creating a macro in VBA to do the following. I have raw order data that I need to transform based on some logic. Raw Data: order-id product-num date buyer-name prod-name qty-purc sales-tax freight order-st 0000000000-00 10000000000000 5/29/2014 John Doe Product 0 1 1.00 1.50 GA 0000000000-00 10000000000001 5/29/2014 John Doe Product 1 2 1.00 1.50 GA 0000000000-00 10000000000002 5/29/2014 John Doe Product 2 1 1.00 2.00 GA 0000000000-01 10000000000002 5/30/2014 Jane Doe Product 2 1 0.00 0.00 PA 0000000000-01 10000000000003 5/30/2014 Jane Doe Product 3 1 0.00 0.00 PA Desired Outcome: HDR 0000000000-00 John Doe 5/29/2014 CHG Tax 3.00 CHG Freight 5.00 ITM 10000000000000 Product 0 1 ITM 10000000000001 Product 1 2 ITM 10000000000002 Product 2 1 HDR 0000000000-01 Jane Doe 5/30/2014 ITM 10000000000002 Product 2 1 ITM 10000000000003 Product 3 1 The "CHG" rows are created based on the following logic; if the order-st is CA or GA, add the total of sales-tax and freight for each of the rows with the same order-id. If the order-st is NOT CA or GA, no CHG rows should be created. Any help would be appreciated - let me know if I left any details out!

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  • Slow File Copy observed copying 40GB files across network to iSCSI device

    - by Rick
    Here's a curious ones for the gurus: Setup: Source Machine: Windows Server 2003 R2 machine with local hard drive. VHD file of 40GB. 1 x 1Gbps network card, Cat6 cable, switch. Target Machine: Windows Server 2008 R2 machine with iSCSI connection to iSCSI target on separate machine (1TB, RAID5). 1 x 1Gbps network card, Cat6 cable, connected to same switch as for Source Machine. Second 1Gbps network card, Cat6 cable, connected via isolated switch to the iSCSI target. Switches are Netgear JGS524 model (web managed). If I copy from the Win2003R2 machine to Win2008R2 machine local drive I get 40GB in 45 minutes, 36 seconds. If I copy from the Win2008R2 machine to the iSCSI target (local drive to iSCSI target) I get 40GB in 37 minutes 56 seconds. If I copy from the Win2003R2 machine to the iSCSI target via the Win2008R2 machine I get 40GB in 3 hours, 50 minutes, 24 seconds. All copies were done via the following command issued on the Win2008R2 box: XCOPY <source> <target> /J XCOPY /J - Copies using unbuffered I/O. Recommended for very large files. So, what's the bit I'm missing here? Why does a back-to-back copy take in total 1 hour, 23 minutes, 32 seconds when a "straight through" copy take almost 3 times as long? Switches show no errors, network hovers around the 3% utilisation mark for the duration of the copy (whereas the "back-to-back" copies are around the 25% utilisation mark). What have I missed?

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  • SQL 2K5 - Multiple databases vs. Multiple files

    - by Bob Palmer
    Hey all, quick question. Our current legacy system was built using multiple distinct databases (about ten of them). These are all part of the same discreet system, and a large number of SPs and functionalty span multiple databases. There are also key relationships that span (for example, a header table may be in database A with history, etc. in database B). When deploying multiple copies of our app to the same server therefore, we have to use multiple instances (because the database names are coded into so many sprocs). We're evaluating the idea of taking these ten databases (about 30gb total with individual sizes ranging from 100mb to 10gb) and merging them into a single database. Currently, we have our databases spread accross multiple spindles for better IO. The question I have is whether or not there is any performance loss or benefit of having 10 different databases vs. 10 different database files? i.e. rather than having three databases (A, B, and C) Disk D: A.mdf (1gb) Disk E: B.mdf (4gb) Disk F: C.mdf (10gb) Disk G: A_Log.ldf, B_Log.ldf, C_Log.ldf have one database (X) Disk D: X1.mdf (5gb) Disk E: X2.mdf (5gb) Disk F: X3.mdf (5gb) Disk G: X1_log.ldf,X2_log.ldf,X3_log.ldf Thanks! -Bob

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  • Re-sizing disk partition linux/vm

    - by Tiffany Walker
    I VM Player running a linux guest and I was wanting to know how do I expand the disk? In the VM player I gave more disk space but I am not sure how to mount/expand/connect the new disk space to the system. My old disk space was 14GB [root@localhost ~]# df -h / Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 14G 4.5G 8.2G 36% / Then I expanded it and now I see sda2 which is the new space? [root@localhost ~]# fdisk -l Disk /dev/sda: 128.8 GB, 128849018880 bytes 255 heads, 63 sectors/track, 15665 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000cd44d Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 2611 20458496 8e Linux LVM Disk /dev/mapper/VolGroup-lv_root: 14.5 GB, 14537457664 bytes 255 heads, 63 sectors/track, 1767 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/VolGroup-lv_swap: 6408 MB, 6408896512 bytes 255 heads, 63 sectors/track, 779 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Do I need to mount the new space first? resize2fs -p /dev/mapper/VolGroup-lv_root 108849018880 resize2fs 1.41.12 (17-May-2010) The containing partition (or device) is only 3549184 (4k) blocks. You requested a new size of 1474836480 blocks. resize2fs -p /dev/mapper/VolGroup-lv_root 128849018880 resize2fs 1.41.12 (17-May-2010) resize2fs: Invalid new size: 128849018880 [root@localhost ~]# lvextend -L+90GB /dev/mapper/VolGroup-lv_root Extending logical volume lv_root to 103.54 GiB Insufficient free space: 23040 extents needed, but only 0 available [root@localhost ~]# lvextend -L90GB /dev/mapper/VolGroup-lv_root Extending logical volume lv_root to 90.00 GiB Insufficient free space: 19574 extents needed, but only 0 available EDIT: So after trying pvcreate/vgextend nothing has so far worked. I'm guessing the new disk space added from VM Player is not showing up? pvscan PV /dev/sda2 VG VolGroup lvm2 [19.51 GiB / 0 free] Total: 1 [19.51 GiB] / in use: 1 [19.51 GiB] / in no VG: 0 [0 ]

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  • 2008 Sever Randomly reboots.

    - by Jeff
    I'm out of ideas here. We have a 2008 Server that keeps rebooting 2-3 times a day at completely random times with an "Unexpected Shutdown" event. There are no Dumps, no events leading to it just like it loses power then comes back online. I ran a Diagnostic of the power supply and it has had continuous power for months. In addition, the temperature of the processors are maxing out at 40 degrees Celsius. Anyone have any ideas how to figure out why this is restarting all the time? This is a DMZed Web server so it doesn't do too much process wise. Here are the specs: Host Name: ~~~ OS Name: Microsoft Windows Server 2008 R2 Standard OS Version: 6.1.7600 N/A Build 7600 OS Manufacturer: Microsoft Corporation OS Configuration: Standalone Server OS Build Type: Multiprocessor Free Registered Owner: Windows User Registered Organization: Product ID: ~~~ Original Install Date: 5/27/2010, 4:25:47 PM System Boot Time: 2/14/2011, 5:35:01 PM System Manufacturer: HP System Model: ProLiant DL380 G6 System Type: x64-based PC Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 26 Stepping 5 GenuineIntel ~1586 Mhz BIOS Version: HP P62, 8/16/2010 Windows Directory: C:\Windows System Directory: C:\Windows\system32 Boot Device: \Device\HarddiskVolume1 System Locale: en-us;English (United States) Input Locale: en-us;English (United States) Time Zone: (UTC-05:00) Eastern Time (US & Canada) Total Physical Memory: 4,086 MB Available Physical Memory: 2,775 MB Virtual Memory: Max Size: 8,170 MB Virtual Memory: Available: 6,691 MB Virtual Memory: In Use: 1,479 MB Page File Location(s): C:\pagefile.sys

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  • User directive in nginx generates error despite running as UID root

    - by Joost Schuur
    I'm running nginx on a MacOS X machine, installed with brew, and when I launch nginx, even with sudo, I get the following warning in my log file over and over again: 4/21/11 2:03:42 AM org.nginx[3788] nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /usr/local/etc/nginx/conf/nginx.conf:2 From nginx.conf: user jschuur staff; I'm already launching nginx with sudo, since I want the thing to listen on port 80. Shouldn't that be enough to give it the proper super user privileges? The nginx binary as it's installed: jschuur@Glenna:sbin ? master ls -la total 4544 drwxr-xr-x 3 jschuur staff 102 Apr 12 20:53 . drwxrwxr-x 15 jschuur staff 510 Apr 12 15:25 .. -rwxr-xr-x 1 jschuur staff 2325648 Apr 12 20:39 nginx FWIW, I recompiled the binary to set passenger up and moved it around from it's original location into /usr/local/sbin. Update: As it turns out MacOS X was restarting nginx after I'd stopped it, because the launchd plist in ~/Library/LaunchAgents had set it to 'KeepAlive'. However, because I installed this plist into my local user's LaunchAgents folder as opposed to /Library/LaunchAgents (or better yet /Library/LaunchDaemons, which run before you even log on), it wasn't executed as root. Because of an error about not having permissions to use port 80, it actually exited right away, but still wrote to the same log file as the nginx process I started with sudo. I had thought the errors stemming from the automatic restart were actually coming from my manual restart via sudo. So, bottom line, problem solved. The real problem here was the homebrew instructions specifically asking you to install the plist file into an area that wouldn't allow a local site to use port 80.

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  • Symlinks are inaccessible by their full path on OS X

    - by Computer Guru
    Hi, I have symlinks pointing to applications placed in /usr/local/bin which is in the path. However, I can't run these applications from other folders. Even more weird, I can't access them by the full path to the symlink. [mqudsi@iqudsi:Desktop/EasyBCD]$ echo $path (03-26 13:42) /opt/local/bin /opt/local/sbin /usr/local/bin /usr/local/sbin/ /usr/local/CrossPack-AVR/bin /usr/bin /bin /usr/sbin /sbin /usr/local/bin /usr/X11/bin [mqudsi@iqudsi:local/bin]$ ls -l /usr/local/bin (03-26 13:47) total 24280 -rwxr-xr-x 1 mqudsi wheel 18464 May 14 2009 ascii-xfr -rwxr-xr-x 1 mqudsi wheel 12567 Mar 25 04:50 brew -rwxr-xr-x 1 mqudsi wheel 17768 Dec 11 12:41 bsdiff -rwxr-xr-x 1 mqudsi wheel 43024 Mar 28 2009 dumpsexp -rwxr-xr-x 1 mqudsi wheel 280 Sep 10 2009 easy_install -rwxr-xr-x 1 mqudsi wheel 288 Sep 10 2009 easy_install-2.6 -rwxr-xr-x 1 mqudsi wheel 39696 Apr 5 2009 fuse_wait lrwxr-xr-x 1 mqudsi wheel 29 Mar 25 04:53 git -> ../Cellar/git/1.7.0.3/bin/git [mqudsi@iqudsi:local/bin]$ /usr/local/bin/git (03-26 13:47) zsh: no such file or directory: /usr/local/bin/git Clearly the link is there, but I'm not able to get it to it :S

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  • Very uneven CPU utilization with SQL Server 2012 on 2 processor computer with 16 cores / processor

    - by cooplarsh
    After installing SQL Server Enterprise 2012 with the Server + Cal license model, on a computer with 2 processors each with 16 cores (and no hyperthreading involved) and putting the server under extremely heavy load the 16 cores on the first processor were very underutilized, the first 4 cores on the 2nd CPU were heavily utilized, and the last 12 cores were not used at all (because of the 20 core limit for this sql server version). Total CPU utilization was displaying as around 25%. Unfortunately, the server suffered from extremely poor performance even though if the tasks were evenly distributed across the 20 cores it wouldn't have been anywhere near as bad. The Windows Server was running on a VMWare virtual image under ESX Server, but all of the CPU was allocated to the windows server. We tried changing affinity settings (e.g., allocating most cores to CPU and the others to I/O), but that didn't help solve the performance problems. Upgrading the product edition to SQL Server Enterprise Core 2012 not only allowed the SQL Server to utilize the 12 previously unused cores on the 2nd processor, but it also resulted in a much more even distribution of tasks across all of the processors. To get through the backlog of requests cpU utilization jumped to around 90%, and then came down to around 33% once it was caught up, but performance improved dramatically since we failed over to the newly updated version And the performance issues went away. I was wondering if anyone knows what might cause SQL Server to unevenly distribute the load, relying almost exclusively on the first 4 cores of the 2nd processor that had 12 cores idle, and allocate only a few tasks to each of the 16 cores on the first processor. Also, is there any way we could have more evenly distributed the load across the 20 cores that were being used without the product edition upgrade? The flip side of that question is what did the product upgrade do that caused SQL Server to start evenly distributing the load across all of the cores that it recognized? Thanks to any insight to answer these questions and/or links that might help me better understand how to make sense of what was happenings.

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  • Why can't I get rid of default index.html even if I disable the default virtual host in Apache2?

    - by Emre Sevinç
    I have created a virtual host settings file and I disabled the default settings by using a2dissite default (this is a pretty standard Ubuntu 10.04 installation). But no matter what I try my Apache2 server simply keeps on displaying the default index.html page instead of the index.php page that I set up in the virtual host file. Can someone help me what I'm missing. Details follow: No default settings: ls -l /etc/apache2/sites-enabled/ total 0 lrwxrwxrwx 1 root root 51 May 5 13:32 webmin.1273066327.conf -> /etc/apache2/sites-available/webmin.1273066327.conf lrwxrwxrwx 1 root root 34 May 30 11:03 www.accontax.be -> ../sites-available/www.accontax.be Contents of the relevant virtual host: cat /etc/apache2/sites-enabled/www.accontax.be <VirtualHost *> ServerName www.accontax.be ServerAlias accontax.be DirectoryIndex index.php DocumentRoot /var/www/drupal/ <Directory /var/www/drupal/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> </VirtualHost> Contents of httpd.conf: cat /etc/apache2/httpd.conf Listen 80 NameVirtualHost * I also have those relevant lines in my apache2.conf: # Include generic snippets of statements Include /etc/apache2/conf.d/ # Include the virtual host configurations: Include /etc/apache2/sites-enabled/ When I visit http://www.accontax.be I expect apache2 server go to the /var/www/drupal subdirectory and start serving index.php but it simply keeps on serving index.html from /var/www directory. I have reloaded the configuration, restarted the server, deleted my browser cache. Nothing changed. Probably I'm missing a simple yet crucial step but I just could not find it.

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  • Docs for OpenSSH CA-based certificate based authentication

    - by Zoredache
    OpenSSH 5.4 added a new method for certificate authentication (changes). * Add support for certificate authentication of users and hosts using a new, minimal OpenSSH certificate format (not X.509). Certificates contain a public key, identity information and some validity constraints and are signed with a standard SSH public key using ssh-keygen(1). CA keys may be marked as trusted in authorized_keys or via a TrustedUserCAKeys option in sshd_config(5) (for user authentication), or in known_hosts (for host authentication). Documentation for certificate support may be found in ssh-keygen(1), sshd(8) and ssh(1) and a description of the protocol extensions in PROTOCOL.certkeys. Is there any guides or documentation beyond what is mentioned in the ssh-keygen man-page? The man page covers how to generate certificate and use them, but it doesn't really seem to provide much information about the certificate authority setup. For example, can I sign the keys with an intermediate CA, and have the server trust the parent CA? This comment about the new feature seems to mean that I could setup my servers to trust the CA, then setup a method to sign keys, and then users would not have to publish their individual keys on the server. This also seems to support key expiration, which is great since getting rid of old/invalid keys is more difficult then it should be. But I am hoping to find some more documentation about describe the total configuration CA, SSH server, and SSH client settings needed to make this work.

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  • Recovering a damaged microSDHC

    - by djechelon
    I just bought from eBay a Kingston 32GB microSDHC that was advertised as defective. The seller said that there could be formatting problems or with transfer of large files. Unfortunately, when I got it, it was a total mess. My Nikon camera doesn't read it at all (OK, maybe it doesn't support 32GB) My Linux laptop doesn't mount it: can't read superblock The same laptop refuses to mkfs.msdos because it failed whilst writing reserved sector The same laptop, under Windows, doesn't read nor format the card HTC HD2 mounts the MMC, allows me to write via USB, but is unable to open the just written files OK, folks, now you would say I would have to go through Paypal complaint... that's not that easy. I consciously bought a half-price card that was known to show some defects, and Paypal complaints take time. Obviously, I can't accept somebody sold me a completely use-less computer decoration. So I'll keep it as last option. My question is Do you know a way, under either Linux or Windows, to thoroughly scan, test and possibly repair memory cards, even if I have to lose some percentage of space because of bad sectors? If I can keep at least half of the card intact it would certainly be fine. I used to do broken sector marking with hard disks in the past. I almost forgot: MONSTR:/home/djechelon # fsck /dev/mmcblk0p1 fsck from util-linux-ng 2.17.2 dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN Read 512 bytes at 0:Input/output error

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  • Advanced Linux file permission question (ownership change during write operation)

    - by Kent
    By default the umask is 0022: usera@cmp$ touch somefile; ls -l total 0 -rw-r--r-- 1 usera usera 0 2009-09-22 22:30 somefile The directory /home/shared/ is meant for shared files and should be owned by root and the shared group. Files created here by usern (any user) are automatically owned by the shared group. There is a cron-job taking care of changing owning user and owning group (of any moved files) once per day: usera@cmp$ cat /etc/cron.daily/sharedscript #!/bin/bash chown -R root:shared /home/shared/ chmod -R 770 /home/shared/ I was writing a really large file to the shared directory. It had me (usera) as owning user and the shared group as group owner. During the write operation the cron job was run, and I still had no problem completing the write process. You see. I thought this would happen: I am writing the file. The file permissions and ownership data for the file looks like this: -rw-r--r-- usera shared The cron job kicks in! The chown line is processed and now the file is owned by the root user and the shared group. As the owning group only has read access to the file I get a file write error! Boom! End of story. Why did the operation succeed? A link to some kind of reference documentation to back up the reason would be very welcome (as I could use it to study more details).

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  • Problems mounting HPUX LVM+VXFS filesystem on Linux

    - by golimar
    I have a physical disk from a HPUX system that I need to access from a Debian Linux for ia64 system. From the hpux-lvm-tools project I have the tools to access the HPUX LVMs (Linux LVM has a different format) and I also have the freevxfs driver. I know beforehand that the disk has three partitions, and that the biggest one contains LVM volumes, and some of those are VxFS filesystems. I can see the partitions: # cat /proc/partitions major minor #blocks name 8 32 143374744 sdc 8 33 512000 sdc1 8 34 142452736 sdc2 8 35 409600 sdc3 It finds a VG in one of the disk partitions: # ./vgscan_hpux On /dev/sdc2 - vg1328874723 # ./pvdisplay_hpux /dev/sdc2 PV General Information ---------------------- VG Creation Time Fri Feb 10 12:52:03 2012 Physical Volume ID 1766760336 1328874723 Volume Group ID 1766760336 1328874723 Physical Volumes in VG 1766760336 1328874723 VG Actication Mode 0 - LOCAL PE Size 64 MBs Lvol sizes ---------- lvol1 - 8 Extents - 512 MBs lvol2 - 192 Extents - 12288 MBs lvol3 - 16 Extents - 1024 MBs ... lvol21 - 13 Extents - 832 MBs lvol22 - 224 Extents - 14336 MBs lvol23 - 16 Extents - 1024 MBs Then I activate that VG and some new devices appear in my system: # ./pvactivate_hpux /dev/sdc2 VG vg1328874723 Activated succesfully with 23 lvols. # # ll /dev/mapper/ total 0 crw------- 1 root root 10, 59 Nov 26 16:08 control lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol1 -> ../dm-0 lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol10 -> ../dm-9 ... lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol8 -> ../dm-7 lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol9 -> ../dm-8 But: # mount /dev/mapper/vg1328874723-lvol18 /mnt/tmp mount: you must specify the filesystem type # mount -t vxfs /dev/mapper/vg1328874723-lvol18 /mnt/tmp mount: wrong fs type, bad option, bad superblock on /dev/mapper/vg1328874723-lvol18, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so # lsmod |grep vxfs freevxfs 23905 0 I also tried to identify the raw data with the file command and it just says 'data': # file -s /dev/mapper/vg1328874723-lvol18 /dev/mapper/vg1328874723-lvol18: symbolic link to `../dm-17' # file -s /dev/dm-17 /dev/dm-17: data # Any clues?

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  • a disk read error occurred

    - by kellogs
    Hi, ¨a disk read error occurred¨ appears on screen after choosing to boot into Windows XP from GRUB. [root@localhost linux]# fdisk -lu Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x48424841 Device Boot Start End Blocks Id System /dev/sda1 63 204214271 102107104+ 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 204214272 255606783 25696256 af HFS / HFS+ Partition 2 does not end on cylinder boundary. /dev/sda3 255606784 276488191 10440704 c W95 FAT32 (LBA) Partition 3 does not end on cylinder boundary. /dev/sda4 276490179 312576704 18043263 5 Extended /dev/sda5 * 276490240 286709759 5109760 83 Linux /dev/sda6 286712118 310488254 11888068+ b W95 FAT32 /dev/sda7 310488318 312576704 1044193+ 82 Linux swap / Solaris sda is a 160GB hard disk with quite a few partitions and 3 OSes installed. I am able to boot into Linux and Mac OS fine, but not into Windows anymore. The Windows system is located on /dev/sda1. I can not recall how exactly have I used testdisk but it once said that ¨The harddisk /dev/sda (160GB / 149 GB) seems too small! (< 172GB / 157GB)¨ or something simillar. So far I have tried to ¨fixboot¨ and ¨chkdsk¨ from a recovery console on the affected windows partition (/dev/sda1), the plug off power cord for 15 seconds trick, reinstalling GRUB, repairing the MFT and boot sector of the affected partition via testdisk, what next please ? Thank you!

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  • How should I monitor memory usage/performance in SunOS/Solaris?

    - by exhuma
    Last week we decided to add some SunOS (uname -a = SunOS bbs-sam-belair 5.10 Generic_127128-11 i86pc i386 i86pc) machines into our running munin instance. First off, the machines are pre-configured appliances, so, I want to avoid touching the system too much without supervision of the service provider. But adding it to munin was fairly easy by writing a small socket-service (if anyone is interested, I put it up on github: https://github.com/munin-monitoring/contrib/tree/master/tools/pypmmn) Yesterday, I implemented/adapted the required plugins for our machines. And here the questions start: First, I have not found a way to determine detailed memory usage values. I get the total memory by running prtconf | grep Memory, and the free memory using vmstat. Fiddling together a munin-plugin, gives me the following graph: This is pretty much uninformative. Compare this to the default plugin for linux nodes which has a lot more detail: Most importantly, this shows me how much memory is actually used by applications. So, first question: Is it possible to get detailed memory information on SunOS with the default system tools (i.e. not using top)? Onto the next puzzle: Seeing the graphs, I noticed activity in the "Paging in/out" graphs, even though the memory graph still has unused memory: Upon further investigation, I found out that df reports that /tmp is mounted on swap. Drilling around on the web, I understood that df will display swap, but in fact, it's mounted as a tmpfs. Now I don't know if this explains the swap activity. The default munin-plugin for solaris uses kstat -p -c misc -m cpu_stat to get these values. I find it already strange that this is using the cpu_stat module. So maybe I simply misinterpret the "paging" graphs? Second question: Do the paging graphs indicate that parts of the memory are paged to disk? Or is the activity caused by file operations in /tmp?

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  • What does it mean for the file name to be shown with red background

    - by user56614
    I'm trying to install Cisco VPN client on Linux Ubuntu 10.04. The installer creates the directory, places all the necessary files in it, and then fails to launch the binary. I tried to launch it myself, the system rebukes me too. Closer inspection yields the following: eugene@eugene-desktop:/opt/cisco/vpn/bin$ sudo chmod u+x vpnagentd eugene@eugene-desktop:/opt/cisco/vpn/bin$ ls -la total 5124 drwxr-xr-x 2 root root 4096 2010-10-23 11:51 . drwxr-xr-x 6 root root 4096 2010-10-23 11:51 .. -rwxr-xr-x 1 root root 1607236 2010-10-23 11:51 vpn -rwsr-xr-x 1 root root 1204692 2010-10-23 11:51 vpnagentd -r--r--r-- 1 root root 697380 2010-10-23 11:51 vpndownloader.sh -rwxr-xr-x 1 root root 1712708 2010-10-23 11:51 vpnui -rwxr-xr-x 1 root root 3654 2010-10-23 11:51 vpn_uninstall.sh eugene@eugene-desktop:/opt/cisco/vpn/bin$ ./vpnagentd bash: ./vpnagentd: No such file or directory eugene@eugene-desktop:/opt/cisco/vpn/bin$ sudo ./vpnagentd sudo: unable to execute ./vpnagentd: No such file or directory The file name "vpnagentd" is shown in white letters with red background. The other three executables are in green letters with black background, as expected. Any ideas?

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  • CPU-adaptive compression

    - by liori
    Hello, Let assume I need to send some data from one computer to another, over a pretty fast network... for example standard 100Mbit connection (~10MB/s). My disk drives are standard HDD, so their speed is somewhere between 30MB/s and 100MB/s. So I guess that compressing the data on the fly could help. But... I don't want to be limited by CPU. If I choose an algorithm that is intensive on CPU, the transfer will actually go slower than without compression. This is difficult with compressors like GZIP and BZIP2 because you usually set the compression strength once for the whole transfer, and my data streams are sometimes easy, sometimes hard to compress--this makes the process suboptimal because sometimes I do not use full CPU, and sometimes the bandwidth is underutilized. Is there a compression program that would adapt to current CPU/bandwidth and hit the sweet spot so that the transfer will be optimal? Ideally for Linux, but I am still curious about all solutions. I'd love to see something compatible with GZIP/BZIP2 decompressors, but this is not necessary. So I'd like to optimize total transfer time, not simply amount of bytes to send. Also I don't need real time decompression... real time compression is enough. The destination host can process the data later in its spare time. I know this doesn't change much (compression is usually much more CPU-intensive than decompression), but if there's a solution that could use this fact, all the better. Each time I am transferring different data, and I really want to make these one-time transfers as quick as possible. So I won't benefit from getting multiple transfers faster due to stronger compression. Thanks,

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  • Xen domU passwd file overwritten with console log output

    - by malfy
    I was setting up a Debian Xen domU and after booting it fine, I added basic configuration to /etc/network/interfaces and ran /etc/init.d/networking restart. This failed so I decided to reboot. After the reboot I also ran xm shutdown box. When dropped to a shell prompt it wouldn't let me login. Upon further inspection, I now have garbage in some critical files in /etc: root@box:/# tail +1 mnt/etc/{passwd-,shadow} tail: cannot open `+1' for reading: No such file or directory ==> mnt/etc/passwd- <== 0000000000100000 (reserved) Nov 23 02:02:39 box kernel: [ 0.000000] Xen: 0000000000100000 - 0000000004000000 (usable) Nov 23 02:02:39 box kernel: [ 0.000000] DMI not present or invalid. Nov 23 02:02:39 box kernel: [ 0.000000] last_pfn = 0x4000 max_arch_pfn = 0x1000000 Nov 23 02:02:39 box kernel: [ 0.000000] initial memory mapped : 0 - 033ff000 Nov 23 02:02:39 box kernel: [ 0.000000] init_memory_mapping: 0000000000000000-0000000004000000 Nov 23 02:02:39 box kernel: [ 0.000000] NX (Execute Disable) protection: active Nov 23 02:02:39 box kernel: [ 0.000000] 0000000000 - 0004000000 page 4k Nov 23 02:02:39 box kernel: [ 0.000000] kernel direct mapping tables up to 4000000 @ 7000-2c000 Nov 23 02:02:3 ==> mnt/etc/shadow <== 32 nr_cpumask_bits:32 nr_cpu_ids:1 nr_node_ids:1 Nov 23 02:02:39 box kernel: [ 0.000000] PERCPU: Embedded 15 pages/cpu @c15b0000 s37688 r0 d23752 u65536 Nov 23 02:02:39 box kernel: [ 0.000000] pcpu-alloc: s37688 r0 d23752 u65536 alloc=16*4096 Nov 23 02:02:39 box kernel: [ 0.000000] pcpu-alloc: [0] 0 Nov 23 02:02:39 box kernel: [ 0.000000] Xen: using vcpu_info placement Nov 23 02:02:39 box kernel: [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16160 Nov 23 02:02:39 box kernel: [ 0.000000] Kernel command line: root=/dev/mapper/xen-guest_root ro quiet root=/dev/xvda1 ro Nov 23 02:02:39 box kernel: [ 0.000000] PID hash table entries: The garbage is also present in the passwd file and the group file (although I didn't paste that above since I have since ran debootstrap on the filesystem again). Does anyone have any insight into what happened and why?

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  • IIS permission configuration issue

    - by Dan
    Sorry the title of this question is a little ambiguous but I don't really have any idea where the issue lies - I'm seeking some clarification of the server error logs. Basically, I had a dedicated server running Windows 2003 and Plesk (v8 I think). Last week the server hardware failed and the entire thing had to be rebuilt from scratch. New hardware was put in, new operating system (Win2008), new Plesk installation (v9.5), new software (MSSQL etc) then all data ported over manually from old C and D drives to restore all 30 client sites. It was hell! All has been okay for a couple of days now but about an hour ago POP! Suddenly all sites went down giving a 500 error. Restarting all services eventually brought everything back online, but I'm now living in total fear. It can - and probably will - happen again. The guys on support gave me the following errors from the server log: The Template Persistent Cache initialization failed for Application Pool 'ASP.NET v4.0 Classic' because of the following error: Could not create a Disk Cache Sub-directory for the Application Pool. The data may have additional error codes.. The worker process for application pool 'domain1.com(domain)(2.0)(pool)' encountered an error 'Cannot read configuration file ' trying to read configuration data from file '\\?\C:\inetpub\temp\apppools\domain1.com(domain)(2.0)(pool).config', line number '0'. The data field contains the error code. The worker process for application pool 'PleskControlPanel' encountered an error 'Cannot read configuration file ' trying to read configuration data from file '\\?\C:\inetpub\temp\apppools\PleskControlPanel.config', line number '0'. The data field contains the error code. The support guys are so ambiguous about this and it scares me horribly. Can anyone positively identify the cause of this error which lead to all client website going offline? What can be done to prevent it from happening again? Any pointers would be very much appreciated! Thanks folks...

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  • apache performance timing out

    - by Mike
    Im running a webserver where I'm hosting about 6-7 websites. Most of these websites get their content from MySQL which is hosted on the same server. Traffic average per day is about 500-600 unique visitors, about 150K hits per week. But for some reason sometimes websites send a timeout, OR sometimes websites dont load all images. I know that I should perhaps separate static content from dynamic content, but for now I think that's not a possibility. I would appreciate any suggestions on how could I improve the performance of apache, so it doesn't keep timing out. Server is running on Sempron LE 1300; 2.3GHz,512K Cache 2GB RAM 10Mbps/1Mbps Services: MySQL, ProFTPD, Apache. Private + Shared = RAM used Program ---------------------------------------------------- 1.2 MiB + 54.0 KiB = 1.2 MiB proftpd 4.1 MiB + 23.0 KiB = 4.1 MiB munin-node 20.8 MiB + 120.5 KiB = 20.9 MiB mysqld 47.3 MiB + 9.9 MiB = 57.3 MiB apache2 (22) top: Mem: 2075356k total, 1826196k used, 249160k free, Timeout 35 KeepAlive On MaxKeepAliveRequests 300 KeepAliveTimeout 5 <IfModule mpm_prefork_module> StartServers 10 MinSpareServers 20 MaxSpareServers 20 MaxClients 60 MaxRequestsPerChild 1000 </IfModule> <IfModule mpm_worker_module> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule>

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  • Performance monitoring on Linux/Unix

    - by ervingsb
    I run a few Windows servers and (Debian and Ubuntu) Linux and AIX servers. I would like to continously monitor performance on these systems in order to easily identify bottlenecks as well as to have an overview of the general activity on the servers. On Windows, I use Windows Performance Monitor (perfmon) for this. I set up these counters: For bottlenecks: Processor utilization : System\Processor Queue Length Memory utilization : Memory\Pages Input/Sec Disk Utilization : PhysicalDisk\Current Disk Queue Length\driveletter Network problems: Network Interface\Output Queue Length\nic name For general activity: Processor utilization : Processor\% Processor Time_Total Memory utilization : Process\Working Set_Total (or per specific process) Memory utilization : Memory\Available MBytes Disk Utilization : PhysicalDisk\Bytes/sec_Total (or per process) Network Utilization : Network Interface\Bytes Total/Sec\nic name (More information on the choice of these counters on: http://itcookbook.net/blog/windows-perfmon-top-ten-counters ) This works really well. It allows me to look in one place and identify most common bottlenecks. So my question is, how can I do something equivalent (or just very similar) on Linux servers? I have looked a bit on nmon (http://www.ibm.com/developerworks/aix/library/au-analyze_aix/) which is a free performance monitoring tool developed for AIX but also availble for Linux. However, I am not sure if nmon allows me to set up the above counters. Maybe it is because Linux and AIX does not allow monitoring these exact same measures. Is so, which ones should I choose and why? If nmon is not the tool to use for this, then what do you recommend?

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  • Performance experiences for running Windows 7 on a Thin-Client?

    - by Peter Bernier
    Has anyone else tried installing Windows 7 on thin-client hardware? I'd be very interested to hear about other people's experiences and what sort of hardware tweaks they had to do to get it to work. (Yes, I realize this is completely unsupported.. half the fun of playing with machines and beta/RC versions is trying out unsupported scenarios. :) ) I managed to get Windows 7 installed on a modified Wyse 9450 Thin-Client and while the performance isn't great, it is usable, particularly as an RDP workstation. Before installing 7, I added another 256Mb of ram (512 total), a 60G laptop hard-drive and a PCI videocard to the 9450 (this was in order to increase the supported screen resolution). I basically did this in order to see whether or not it was possible to get 7 installed on such minimal hardware, and see what the performance would be. For a 550Mhz processor, I was reasonably impressed. I've been using the machine for RDP for the last couple of days and it actually seems slightly snappier than the default Windows XP embedded install (although this is more likely the result of the extra hardware). I'll be running some more tests later on as I'm curious to see particularl whether the streaming video performance will improve. I'd love to hear about anyone's experiences getting 7 to work on extremely low-powered hardware. Particularly any sort of tweaks that you've discovered in order to increase performance..

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  • How do I calculate clock speed in multi-core processors?

    - by NReilingh
    Is it correct to say, for example, that a processor with four cores each running at 3GHz is in fact a processor running at 12GHz? I once got into a "Mac vs. PC" argument (which by the way is NOT the focus of this topic... that was back in middle school) with an acquaintance who insisted that Macs were only being advertised as 1Ghz machines because they were dual-processor G4s each running at 500MHz. At the time I knew this to be hogwash for reasons I think are apparent to most people, but I just saw a comment on this website to the effect of "6 cores x 0.2GHz = 1.2Ghz" and that got me thinking again about whether there's a real answer to this. So, this is a more-or-less philosophical/deep technical question about the semantics of clock speed calculation. I see two possibilities: Each core is in fact doing x calculations per second, thus the total number of calculations is x(cores). Clock speed is rather a count of the number of cycles the processor goes through in the space of a second, so as long as all cores are running at the same speed, the speed of each clock cycle stays the same no matter how many cores exist. In other words, Hz = (core1Hz+core2Hz+...)/cores.

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  • Change authentication wifi WPA to WEP on Windows 8

    - by Kites
    I use netsh wlan set hostednetwork mode=allow ssid=Kites key=phambaoViet netsh wlan start hostednetwork To share WiFi from LAN network on laptop (Windows 8) to my other device. When I show information netsh wlan show hostednetwork the supported authentication is WPA. My device support authentication WEP only. How can I change the authentication to WEP? Infomation: Interface name: Wi-Fi Driver : Qualcomm Atheros AR9002WB-1NG Wireless Network A dapter Vendor : Qualcomm Atheros Communications Inc. Provider : Microsoft Date : 03/07/2012 Version : 3.0.0.130 INF file : C:\Windows\INF\netathrx.inf Files : 2 total C:\Windows\system32\DRIVERS\athrx.sys C:\Windows\system32\drivers\vwifibus.sys Type : Native Wi-Fi Driver Radio types supported : 802.11b 802.11g 802.11n FIPS 140-2 mode supported : Yes 802.11w Management Frame Protection supported : Yes Hosted network supported : Yes Authentication and cipher supported in infrastructure mode: Open None Open WEP-40bit Open WEP-104bit Open WEP WPA-Enterprise TKIP WPA-Personal TKIP WPA2-Enterprise TKIP WPA2-Personal TKIP Vendor defined TKIP WPA2-Enterprise Vendor defined Vendor defined Vendor defined WPA-Enterprise CCMP WPA-Personal CCMP WPA2-Enterprise CCMP Vendor defined CCMP WPA2-Enterprise Vendor defined Vendor defined Vendor defined WPA2-Personal CCMP Vendor defined Vendor defined Authentication and cipher supported in ad-hoc mode: Open None Open WEP-40bit Open WEP-104bit Open WEP WPA2-Personal CCMP Vendor defined Vendor defined

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  • 403 Forbidden error on Mac OSX - Apache and nginx

    - by tlianza
    Hi All, There are a million questions like this on Google, but I haven't found a solution to my problem. The default Apache install on my Mac is giving 403 Forbidden errors for everything (default directory, user home directory, virtual server, etc). After sifting through the config files, I figured I'd give nginx a try. Nginx serves files fine from it's home directory, but it won't serve files from a subfolder of my user directory. I've configured a simple virtual host, and requesting index.html returns a 403-forbidden. The error message in nginx's log file is pretty clear - it can't read the file: 2011/01/04 16:13:54 [error] 96440#0: *11 open() "/Users/me/Documents/workspace/mobile/index.html" failed (13: Permission denied), client: 127.0.0.1, server: local.test.com, request: "GET /index.html HTTP/1.1", host: "local.test.com" I've opened up this directory to everyone: drwxrwxrwx 6 me admin 204B Dec 31 20:49 mobile And all the files in it: $ ls -lah mobile/ total 24 drwxrwxrwx 6 me admin 204B Dec 31 20:49 . drwxr-xr-x 71 me me 2.4K Dec 31 20:41 .. -rw-r--r--@ 1 me me 6.0K Jan 2 18:58 .DS_Store -rwxrwxrwx 1 me admin 2.1K Jan 4 14:22 index.html drwxrwxrwx 5 me admin 170B Dec 31 20:45 nbproject drwxrwxrwx 5 me admin 170B Jan 2 18:58 script And yet, I cannot figure out why the nginx process cannot read index.html. It's running as the "nobody" user, but the permissions are set such that anyone can read them.

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