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http://www.webpagetest.org/result/140512_4P_1Y6/ I can't seem to get keepalive enabled. I have logged into the admin panel and enabled smart ekeepalive (it wal already enabled) and I enabled it in the apache settings in cpanel, but this report continues to show me as not having keepalive...

OK, I have installed Opcache per your suggestion. Hopefully that takes care of it.

Well, the issue is not limited to any one app server in particular. Any of the five app servers might get hung this way. I have disabled the APC before and the problem is that load goes through the roof if we do that. Should I consider a different cache like xcache?

We are using php 5.3.27 and yes we are using APC. We had some database issues but we got those cleared up about 72 hours ago. These lockups are now only happening on one app server at a time at random times. No evidence that this is related to the database at this time,

This is what strace says [root@app04 ~]# strace -p 24267 Process 24267 attached - interrupt to quit futex(0x7f9d7b6d5088, FUTEX_WAIT, 2, NULL Not sure what that means though...

We have a very busy wordpress site that runs on five application servers running lsws. Several times a day, we get to a point where all the php processes are locked and the server stops responding to new requests. IE: 17885 ? S 0:00 | \_ lsphp5:/home/mobile/public_html/frame_contentad.php...

Awesome, thank you

I am using lsws on a cpanel server. I am trying to find where the config settings are for the external applications because we only really have one site on this server and we are seeing high waitq numbers and very slow loading of the site at times. None of the virtualhosts are actually listed...

Can we set the load balancer to flow traffic to a specific server if that connection is coming from a specific IP address? As in, My ip is 1.2.3.4 and when I hit the load balancer, I want all data being fed from server2 in the cluster.

This is set to yes and 10

I have another dedicated server without cpanel that runs an even busier site, but the problem I am seeing there is that in the lsws config area there aren't any virtualhosts listed. I presume this is because its pulling the virtual hosts from the apache config. I've changed the lsphp5 settings...

Its running 4.1.12 actually. You're suggesting I downgrade it?

I turned lsws back on and it took a few hours, but it did lock up again. Attached is the live data. Hopefully you can see something I am missing. The processes are what are most interesting. This is the lsws process tree when it stopped responding: 7930 ? S< 0:00 litespeed...

We just installed lsws on a cpanel server. Server really only runs one pretty busy and demanding site. It runs pretty well for about an hour. After that, the web server stops responding. Server itself is fine, but lsws doesn't serve up pages. I'm seeing this in the logs when it happens...

That did it. Eternal thanks!

OK, well, I am totally confused now. Not even sure what you mean by match. Here is some output [root@yarow ~]# /usr/local/lsws/fcgi-bin/lsphp5 -v PHP Warning: PHP Startup: ssh2: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP...

Correct, extension_dir is set to ./ which is current folder. I don't know what php would consider the current folder. But in any case, when its referenced directly, it gives the error in my last message.

Its using the right php.ini. I'm not sure what ./ folder represents with this php implementation, however, Using teh cli php, I am seeing this error: PHP Warning: PHP Startup: ssh2: Unable to initialize module

It does, yes, which is why i am so perplexed.

Yes, we have had that since the start. Both just the ssh2.so and with the absolute path to the file. No go either way.