Need help deciphering cPanel TailWatch error

cyberchimps

Member
Mar 18, 2011
11
0
51
Hey everyone,

About an hour ago we had an error that caused a total system hang up that required a hard reboot at the host level. I googled the error but didn't find much so I was wondering if anyone else has seen this before. From the tailwatchd_log:

[Cpanel::TailWatch::Eximstats] [SQLERR] Could not connect to Database: Lost connection to MySQL server at 'sending authentication information', system error: 32

If anyone has had this happen before or can point me in the right direction I'd really appreciate it. Thank you.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,909
2,222
463
Hello :)

That message indicates that a connection attempt to MySQL by Tailwatchd was not successful. That error itself would not have caused your server to stop responding. Have you noticed any load issues or lack of available memory recently that could have contributed to this? Is this a VPS or a dedicated server?

Thank you.
 

cPanelTristan

Quality Assurance Analyst
Staff member
Oct 2, 2010
7,607
40
248
somewhere over the rainbow
cPanel Access Level
Root Administrator
Can you check to see if you show the following in /var/lib/mysql/hostname.err log file?

Code:
grep -i "incorrect key" /var/lib/mysql/hostname.err
Please replace hostname with the fully qualified hostname for the machine.

If you do find entries showing that in the log recently, then the /tmp folder was full recently on trying to write temporary table data for MyISAM tables, which will cause MySQL to hang and to fail to authenticate.