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visits member for 4 years, 6 months
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Nov
24
awarded  Caucus
Nov
9
comment Run antivirus software on linux DNS servers. Does it make sense?
+1. There are many things where you can spend resources: time, money, and energy that provide return to your company. Maybe one the auditors read about DNS poisoning and thinks this is a cure. The return on this is negligible.
Nov
5
comment Cron occasionally fails with “grandchild #X failed with exit status 3”
One more time: please post at least one line of the crontab entry - one that has failed.
Nov
5
answered exclude a single user from chroot
Nov
5
comment Calling sync/fsync slows IO after 30 minutes uptime
Does that now mean an SSD device swap is order? Seems like it.
Nov
5
comment Cron occasionally fails with “grandchild #X failed with exit status 3”
You have to post some crontab entries. This kind of error occurs when crond finds a syntax error in the command itself, like doing something fun with the date command. crontab syntax is NOT the same as bash or ksh. For example, the % character has to be escaped.
Nov
4
comment Calling sync/fsync slows IO after 30 minutes uptime
I agree if the problem occurs like clockwork. Reboot is not clearing the memory in the SSD controller.
Nov
3
comment Calling sync/fsync slows IO after 30 minutes uptime
+1 for presenting a good question. What does the free command show during those periods? Also, consider in-memory file caching. Linux like to use spare RAM for disk. FWIW, If you have huge amounts of cache, each invocation of sync has to look for dirty pages in there. Which if it is several GB, could take time.
Oct
31
answered server randomly becoming unresponsive
Oct
31
comment delete millions of files within a directory
unmount the disk and then format it. Huge number of files are a big problem with some filesystem types. Did you run out of inodes or actual disk space?? You can control the number of files allowed on the reformatted disk during format.
Oct
27
revised Solaris 10 ZFS ARC Maxed Out and CPU's Overloaded
added 26 characters in body
Oct
27
answered Solaris 10 ZFS ARC Maxed Out and CPU's Overloaded
Jun
23
comment Latency between IIS and SQL on same physical, two VMs
You did not mention CPUs that I can see. SQL and NUMA memory latency may be of interest - I really am not sure. We've had this very problem.
Jun
20
awarded  Commentator
May
20
awarded  Caucus
May
20
awarded  Constituent
Apr
5
comment File permissions for multi-user process
This is rwxr-x--- meaning every member of the whole group can get into the directory.
Apr
5
comment File permissions for multi-user process
who runs script S? root? admin?
Apr
5
answered How to diagnose large number of TIME_WAIT connections
Apr
5
answered How to diagnose large number of TIME_WAIT connections