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alex wom
PM org.apache.jk.common.ChannelSocket processConnection ... crash
October 21, 2012 8:29 PM
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alex wom

Rank: Regular Member

Posts: 166

Join Date: May 4, 2009

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PM org.apache.jk.common.ChannelSocket processConnection
WARNING: processCallbacks status 2

My portal crashes with this message. I'm using Liferay CE 6.0.6. What is the meaning of this message? That the portal cannot connect database (mysql)? I read in a liferay forum post (http://www.liferay.com/community/forums/-/message_boards/message/5041762) that was helpful to use these parameters:
jdbc.default.maxIdleTime=3600
counter.connection.heartbeat.job.interval=30
but it doesn't work for me. Any suggestion to understand the reason?

More information.
Liferay+tomcat are the backend, the frontend is an httpd server that in this case generates this error:
[Mon Oct 22 05:23:51 2012] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header
[Mon Oct 22 05:23:51 2012] ajp_read_header: ajp_ilink_receive failed
[Mon Oct 22 05:23:51 2012] (120006)APR does not understand this error code: proxy: read response failed from

There is not any other error. The result of linux top command is something like this:

top - 05:18:02 up 125 days, 12:57, 1 user, load average: 0.00, 0.00, 0.00
Tasks: 160 total, 2 running, 158 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.4%sy, 0.0%ni, 99.4%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 5734184k total, 5541052k used, 193132k free, 78952k buffers
Swap: 2064376k total, 20384k used, 2043992k free, 3240328k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8379 root 20 0 65276 3040 2380 S 1.0 0.1 0:00.03 sshd
1237 root 20 0 175m 2008 1600 S 0.3 0.0 105:04.06 vmtoolsd
1882 root 20 0 114m 852 760 S 0.3 0.0 13:00.03 crond
31983 liferay 20 0 4904m 1.8g 11m S 0.3 32.1 9:30.92 java