Hi All,
The server load peaks up every hour. The server gets hang every 2 hours. Below are the logs for it.
May 26 12:03:17 p kernel: [ 7078.771346] INFO: task adclient:1216 blocked for more than 120 seconds.
May 26 12:03:17 p kernel: [ 7078.771365] Not tainted 3.13.0-85-generic #129-Ubuntu
May 26 12:03:17 p kernel: [ 7078.771380] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 26 12:03:17 p kernel: [ 7078.771401] adclient D ffff88043fc13180 0 1216 1 0x00000000
May 26 12:03:17 p kernel: [ 7078.771402] ffff8804280afc20 0000000000000086 ffff880426766000 ffff8804280affd8
May 26 12:03:17 p kernel: [ 7078.771404] 0000000000013180 0000000000013180 ffff880426766000 ffff8804268a9b08
May 26 12:03:17 p kernel: [ 7078.771405] ffff8804268a9b0c ffff880426766000 00000000ffffffff ffff8804268a9b10
May 26 12:03:17 kernel: [ 7078.771406] Call Trace:
May 26 12:03:17 pkernel: [ 7078.771408] [<ffffffff81730089>] schedule_preempt_disabled+0x29/0x70
May 26 12:03:17 pkernel: [ 7078.771409] [<ffffffff81731ef5>] __mutex_lock_slowpath+0x135/0x1b0