Segmentation Fault from running repairmysql.sh

[NetNeutron]

Hello,
I have been getting a lot of messages in the /var/log/messages file...
Sep 19 08:23:03 phslxnagios1 ndo2db: mysql_error: 'Table './nagios/nagios_logentries' is marked as crashed and last (automatic?) repair failed'

1. Linux Distribution and version? Red Hat Enterprise Linux Server release 6.7 (Santiago)
2. 64-Bit ( 2.6.32-573.18.1.el6.x86_64 #1 SMP Wed Jan 6 11:20:49 EST 2016 x86_64 x86_64 x86_64 GNU/Linux )
3. Manual Install of XI
4. No Gnome installed, no proxy, no SSL
5. NagiosXI 5.2.9

I ran
# service mysqld stop
# Stopping mysqld: [ OK ]
# /usr/local/nagiosxi/scripts/repairmysql.sh Nagios
mysqld is stopped
DATABASE: nagios
TABLE:
/var/lib/mysql/nagios /usr/local
Stopping mysqld: [ OK ]
…
---------
- recovering (with sort) MyISAM-table 'nagios_contactnotificationmethods.MYI'
Data records: 3938360
- Fixing index 1
…
28821000
28822000
28823000
/usr/local/nagiosxi/scripts/repairmysql.sh: line 59: 11735 Segmentation fault (core dumped) $cmd $t --sort_buffer_size=256M
Timeout error occurred trying to start MySQL Daemon.
Starting mysqld: [FAILED]

Please advise…

[tmcdonald]

Very interesting. Can you PM me the core dump? Refer to this article if you need assistance finding it:

http://stackoverflow.com/questions/2065 ... -directory

Unfortunately this is a segfault in myisamchk, which we do not develop, so the best we can do is check version compatibility and see if you need to upgrade/downgrade anything.

[NetNeutron]

Unfortunately I cannot as a NagiosXI newbie I guess...

We are sorry, but you are not authorised to use this feature. You may have just registered here and may need to participate more to be able to use this feature.

G.

[tmcdonald]

Ahh, right. Now that you have two posts it should allow you through :)

Update: File received and placed in shared drive

[NetNeutron]

Update :
What was happening is that the /var/log/messages file was filling up the disk were the MySQL is on.
So when I tried to run repairmysql.sh Nagios it crashed with the Segmentation Fault.
So I brought everthing down.
Moved the /var/lib/mysql to another disk/directory and linked it back to the original directory.
Then I was able to run the repairmysql successfully.

I also set the logrotate.conf file to weekly.

[tmcdonald]

Ahh, glad to hear it! Sorry for the lack of response, a segfault in mysql utilities is all three of:

1.) Difficult to track down/replicate
2.) Pretty far out of scope
3.) Very interesting, which somewhat overrides #2 above

Just for curiosity's sake, what version of myisamchk are you running? myisamchk --version should do it. It might be worth mentioning this to the MySQL folks if this is not already a known/fixed issue.

[NetNeutron]

This is what I have for the version.

# myisamchk --version
myisamchk Ver 2.7 for redhat-linux-gnu at x86_64

[tmcdonald]

Hmm, found another instance of this but no version was mentioned:

https://support.nagios.com/forum/viewto ... 16#p107371

At any rate, glad it has been resolved. Mind if I lock this up? I'll have our KB updated with this info for future reference.