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seen Jul 10 at 14:00

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.
Jul
8
comment Growing OS cache in RAM causing high system CPU usage
I think Matthew Ife is suggesting that the behavior you see might be related to the "zone reclaim" issue.
Jul
7
comment how do I move where percona mysql stores the databases?
I find it ironic that you're using the Percona distribution but don't know about the datadir system variable.
Jul
7
comment Nginx SSL Termination - How to encrypt data to client?
X-Forwarded-For sends the client's IP address rather than the proxy's IP address. You still need to edit your Apache logging though in order to register the client's IP address. i.e. LogFormat "%{X-Forwarded-For}i ...
Jul
7
comment Nginx SSL Termination - How to encrypt data to client?
No, the data from the client/browser to nginx will be encrypted provided nginx has been configured appropriately. nginx then proxies the requests (unencrypted) to the Apache web servers.
Jul
7
comment Nginx SSL Termination - How to encrypt data to client?
"The connection from nginx to Apache to retrieve the data for nginx to send to the browser should be a regular http connection with no SSL" provided you are on a private VLAN.
Jul
2
awarded  Curious
Jul
1
awarded  Popular Question
Jun
13
comment Backup Solr home
Why would you need to backup Solr? Aren't you just indexing data that originates elsewhere? That data should be backed up but you should have a process to re-index the source data.
Jun
9
comment Should vmtoolsd be running on a headless RHEL 6 guest in a vSphere environment?
I'm aware of that earlier post, it was mine! I'm asking specifically about RHEL 6 and in the context of performance. If you want I can link to that earlier post and explain myself.
Jun
9
asked Should vmtoolsd be running on a headless RHEL 6 guest in a vSphere environment?
May
20
comment How to handle virtual environments on a secure network
Have you looked at Vagrant (www.vagrantup.com)?
May
20
revised How to handle virtual environments on a secure network
edited title
May
7
accepted Red Hat Software Collections 1 Beta channel has 0 packages?
Apr
19
answered Adding “HttpOnly” and “Secure” cookie flags on Nginx & PHP
Apr
15
comment How to disable SSL-VPN on FortiOS 5.0
They haven't issued a firmware update to fix?
Apr
15
comment Tuning Apache For mid-sized site
Is your system fully patched?
Mar
6
comment Is there any reason to keep the “Server” response header in Apache
Why volunteer version information? I always set "ServerSignature Off" and "ServerTokens Prod". Also agree that keeping your web servers up to date is the only real protection. If you don't remove the version information and submit to a third-party penetration test they are sure to flag this as "Information Leakage".
Mar
6
revised Having trouble starting/restarting httpd (apache)
edited title