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problem w/HA mysql toolkit @ SGLX 11.18.06

 
Panos Agoros
Advisor

problem w/HA mysql toolkit @ SGLX 11.18.06

Hi!


I have a problem with mysql toolkit on SGLX 11.18.06:

-mysql when started manually works fine.

-when I try to start the mysql package, startup completion is reported as succesful, but it is not. I've been through the toolkit's README a lot of times and I consider I did all configuration correctly. As a matter of fact, I compared the configuration files/scripts with those of another cluster at the same site (11.16 though), and except some minor changes as per the version, everything else config-like is similar.Mysql log doesn't offer any evidence to help pinpoint the problem.

-evidence of the problem is located in the package error log. Please find the errors below:

Aug 27 12:58:23 - ERROR: Function start_myssql_server: mysql failed to create PID file /var/lib/mysql/mysql_db.pid
Aug 27 12:58:23 - ERROR: Function start_mysql_server: Failed to start HA MySQL daemons.
Aug 27 12:58:23 - Please check Mysql log files for more details.
Aug 27 12:58:23 - Node "augustus": Stopping MySQL daemons
Aug 27 12:58:23 - ERROR: Function stop_mysql_server: The /var/lib/mysql/mysql_db.pid does not exist.
Aug 27 12:58:23 - ERROR: Function stop_mysql_server: Failed to stop MySQL daemons

- I have tried with different PID_FILE filenames/locations without success. I have made sure that this is not a problem of file rights.

I am not familiar with mysql and I acknowledge it might be something simple that I overlooked... Does somebody has any possible clue?

thank you very much for your time!

Panos
"This is how the world works: all energy flows according to the wills of the great magnet... What a fool was I to defy him!" (Johnny Depp/Fear+Loathing In Las Vegas)
4 REPLIES
Steven E. Protter
Exalted Contributor

Re: problem w/HA mysql toolkit @ SGLX 11.18.06

Shalom,

Aug 27 12:58:23 - ERROR: Function start_myssql_server: mysql failed to create PID file /var/lib/mysql/mysql_db.pid

Check permissions and what is in /var/lib/mysql

Check the scripts for compatible floating ip addresses.

Check access to shared storage if in use.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Panos Agoros
Advisor

Re: problem w/HA mysql toolkit @ SGLX 11.18.06

Hi,

all those checks are done. Mysql starts manually ok. The IP is good because before the toolkit integration, the package was coming up and the IP was reachable.

thanks

Panos
"This is how the world works: all energy flows according to the wills of the great magnet... What a fool was I to defy him!" (Johnny Depp/Fear+Loathing In Las Vegas)
Panos Agoros
Advisor

Re: problem w/HA mysql toolkit @ SGLX 11.18.06

With the help of a colleague we fixed the problem! FYI:

=========================================================
PROBLEM:
=========================================================
Aug 27 12:58:23 - ERROR: Function start_myssql_server: mysql

failed to create PID file /var/lib/mysql/mysql_db.pid
Aug 27 12:58:23 - ERROR: Function start_mysql_server: Failed to

start HA MySQL daemons.
Aug 27 12:58:23 - Please check Mysql log files for more details.
Aug 27 12:58:23 - Node "augustus": Stopping MySQL daemons
Aug 27 12:58:23 - ERROR: Function stop_mysql_server: The

/var/lib/mysql/mysql_db.pid does not exist.
Aug 27 12:58:23 - ERROR: Function stop_mysql_server: Failed to

stop MySQL daemons

=========================================================
FIX:
=========================================================
-Edit hamysql.sh.
-Increase STARTUP_RETRIES to 40 instead of default 10.
-@ function start_mysql_server, add a sleep 5:


#Check if the pid file is ready
counter=5
while :; do
if [ -f $PID_FILE ]; then
break
else
if [ $counter -ge $STARTUP_RETRIES ]; then
echo "$(date '+%b %e %T') - ERROR: Function

start_myssql_server: mysql failed to create PID file $PID_FI\
LE"
check_return 1 1
else
================>sleep 5 <=========================
let counter="$counter+1"
fi
fi
done
"This is how the world works: all energy flows according to the wills of the great magnet... What a fool was I to defy him!" (Johnny Depp/Fear+Loathing In Las Vegas)
Panos Agoros
Advisor

Re: problem w/HA mysql toolkit @ SGLX 11.18.06

See the last reply.
"This is how the world works: all energy flows according to the wills of the great magnet... What a fool was I to defy him!" (Johnny Depp/Fear+Loathing In Las Vegas)