Sever load spikes, crashing -- Cp-Wrap the culprit?

[isnoop]

We've been investigating this for some time now, and I may have found a correlation between some strange server load spikes (jumping form a 1.00 avg to upwards of 100.00) around the time that these messages begin to appear in /var/log/secure:

Jul 3 19:52:57 empire Cp-Wrap[3091]: Pushing "570 LIST 0 0" to '/usr/local/cpanel/bin/ftpadmin' for UID: 570
Jul 3 19:52:57 empire Cp-Wrap[3091]: CP-Wrapper terminated without error
Jul 3 19:52:57 empire Cp-Wrap[3100]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:52:57 empire Cp-Wrap[3100]: Pushing "570 COUNTDBS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:52:59 empire Cp-Wrap[3100]: CP-Wrapper terminated without error
Jul 3 19:53:24 empire Cp-Wrap[3146]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:24 empire Cp-Wrap[3146]: Pushing "570 LISTDBS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:24 empire Cp-Wrap[3146]: CP-Wrapper terminated without error
Jul 3 19:53:24 empire Cp-Wrap[3151]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:24 empire Cp-Wrap[3151]: Pushing "570 GETHOST" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:25 empire Cp-Wrap[3151]: CP-Wrapper terminated without error
Jul 3 19:53:25 empire Cp-Wrap[3153]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:25 empire Cp-Wrap[3153]: Pushing "570 LISTUSERSINDB dick" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:25 empire Cp-Wrap[3153]: CP-Wrapper terminated without error
Jul 3 19:53:25 empire Cp-Wrap[3160]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:25 empire Cp-Wrap[3160]: Pushing "570 LISTUSERSINDB ecard" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:25 empire Cp-Wrap[3160]: CP-Wrapper terminated without error
Jul 3 19:53:25 empire Cp-Wrap[3165]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:25 empire Cp-Wrap[3165]: Pushing "570 LISTUSERSINDB one" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:25 empire Cp-Wrap[3165]: CP-Wrapper terminated without error
Jul 3 19:53:25 empire Cp-Wrap[3171]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:25 empire Cp-Wrap[3171]: Pushing "570 LISTUSERS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:26 empire Cp-Wrap[3171]: CP-Wrapper terminated without error
Jul 3 19:53:26 empire Cp-Wrap[3193]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:26 empire Cp-Wrap[3193]: Pushing "570 LISTDBS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:26 empire Cp-Wrap[3193]: CP-Wrapper terminated without error
Jul 3 19:53:26 empire Cp-Wrap[3198]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:26 empire Cp-Wrap[3198]: Pushing "570 LISTUSERS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570
Jul 3 19:53:26 empire Cp-Wrap[3198]: CP-Wrapper terminated without error
Jul 3 19:53:26 empire Cp-Wrap[3222]: CP-Wrapper v1.2 resuming normal operations
Jul 3 19:53:26 empire Cp-Wrap[3222]: Pushing "570 LISTHOSTS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 570

Does anyone have any idea what might be going on here?

cPanel.net Support Ticket Number:

 

[cPanelNick]

cpwrap is a very simple wrapper, I doubt it is causing the problem. We can provide you the source code to it for your review if you sign our standard NDA.

cPanel.net Support Ticket Number:

 

[cPanelNick]

Looks like it could be mysql releated though.

7.1.5 builds will have a more optimized mysql manager


x/sql/index.html

cpanel7.1.5
0.25user 0.03system 0:00.81elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (2552major+1920minor)pagefaults 0swaps

cpanel6.4.2
1.72user 0.21system 0:02.03elapsed 94%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (15711major+12305minor)pagefaults 0swaps

cPanel.net Support Ticket Number:

 

[isnoop]

Originally posted by bdraco
Looks like it could be mysql releated though.

7.1.5 builds will have a more optimized mysql manager


x/sql/index.html

cpanel7.1.5
0.25user 0.03system 0:00.81elapsed 34%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (2552major+1920minor)pagefaults 0swaps

cpanel6.4.2
1.72user 0.21system 0:02.03elapsed 94%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (15711major+12305minor)pagefaults 0swaps

cPanel.net Support Ticket Number:

Is there much difference between 7.1.5 and 7.1.0-R20 ?

cPanel.net Support Ticket Number:

 

[nat]

redhat 8.0
Cpanel 7.2.1-R45

i found a load of the following in my server logs right before a crash. server seemed up just everything would time out waiting for a reponse.

Jul 28 01:00:16 server Cp-Wrap[8674]: Pushing "32362 GETHOST" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
Jul 28 01:00:16 server Cp-Wrap[8674]: CP-Wrapper terminated without error
Jul 28 01:00:16 server Cp-Wrap[8680]: CP-Wrapper v1.2 resuming normal operations
Jul 28 01:00:16 server Cp-Wrap[8680]: Pushing "32362 LISTDBS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
Jul 28 01:00:17 server Cp-Wrap[8680]: CP-Wrapper terminated without error
Jul 28 01:00:17 server Cp-Wrap[8683]: CP-Wrapper v1.2 resuming normal operations
Jul 28 01:00:17 server Cp-Wrap[8683]: Pushing "32362 LISTUSERSINDB dbm" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
Jul 28 01:00:18 server Cp-Wrap[8683]: CP-Wrapper terminated without error
Jul 28 01:00:18 server Cp-Wrap[8696]: CP-Wrapper v1.2 resuming normal operations
Jul 28 01:00:18 server Cp-Wrap[8696]: Pushing "32362 LISTUSERSINDB main" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
Jul 28 01:00:19 server Cp-Wrap[8696]: CP-Wrapper terminated without error
Jul 28 01:00:19 server Cp-Wrap[8698]: CP-Wrapper v1.2 resuming normal operations
Jul 28 01:00:19 server Cp-Wrap[8698]: Pushing "32362 LISTUSERSINDB scribe" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
Jul 28 01:00:19 server Cp-Wrap[8698]: CP-Wrapper terminated without error
Jul 28 01:00:19 server Cp-Wrap[8705]: CP-Wrapper v1.2 resuming normal operations
Jul 28 01:00:19 server Cp-Wrap[8705]: Pushing "32362 LISTUSERS" to '/usr/local/cpanel/bin/mysqladmin' for UID: 32362
...........and it keeps on going for about a half hour, all the way up until everything completly stopped responding.

cPanel.net Support Ticket Number: