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visits member for 5 years, 5 months
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Dec
5
comment How to change the execution time of the my.ini file using Chef
Downvote because the title has nothing to do with: "how to change the execution time of the my.ini file using Chef"
Nov
19
awarded  Notable Question
Nov
12
revised WMI: How can I fix the port?
fixe to fix, 1 1/2 years to correct!
Nov
12
answered How can I log information specific to the “Too many connections error” in mysql
Nov
10
comment Run antivirus software on linux DNS servers. Does it make sense?
We found ourselves in this position - not specifically with DNS but Linux servers in general - and although we agree with the argument against, in the end it was just a box-ticking exercise that we got tired of fighting. So we run centrally managed ESET Antivirus on all servers.
Nov
4
comment The Backup Paradox
Enterprise Backup Solutions (e.g. Commvault Simpana) have data integrity validation (e.g. CRC checks on source data blocks). Regardless this is why the maxim exists to always check your backups. It's about reducing your risk to a price point that your organization can afford.
Nov
1
awarded  Famous Question
Oct
30
comment Secure permissions setup for Drupal website with multiple maintainers
Well, I commend you for seeking out security best practices but the bottom line is that you should be using version control and you should be using install/update scripts.
Oct
30
answered Secure permissions setup for Drupal website with multiple maintainers
Oct
24
revised Redhat 7 desktop to workstation
edited title
Oct
20
revised Emails stopped being sent by server all of a sudden
edited title
Oct
20
comment Emails stopped being sent by server all of a sudden
And what email server are you using currently?
Oct
9
comment Apache Tuning doubts
Your MaxClients is ridiculously high - unless the average size of an httpd process is like around 4MB (doubtful).
Sep
30
awarded  Explainer
Sep
3
revised Maximum server attempts from upstream in Nginx
added 2 characters in body; edited title
Aug
5
comment How to free linux memory safely to improve server performance
You can add swap if you can't reboot but it won't improve performance. Production servers, especially those running DB servers, shouldn't swap as it kills performance.
Aug
5
comment How to free linux memory safely to improve server performance
Not only will it go up again but the OOM Killer will eventually get invoked (unless it's been disabled) and take down your production service anyway. You need to add more memory and/or carefully manage the memory usage of your application.
Jul
22
awarded  Yearling
Jul
8
comment Growing OS cache in RAM causing high system CPU usage
Could it be kdmflush is active when you have the high CPU usage? Maybe you need to adjust vm.dirty_* tunables.
Jul
8
comment Growing OS cache in RAM causing high system CPU usage
I'm no expert on this issue but it appears that even with the setting at 0 it can cause issues (see: rhaas.blogspot.ca/2014/04/…). You haven't said what kind of application you're running but here is an attempt at a solution in the MySQL world (blog.jcole.us/2012/04/16/a-brief-update-on-numa-and-mysql). Let me know if this is on the right track! I'll make it an answer.