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Replication Query Optimization DB Tuning Server Load and Query Locking Linux Download Interview Questions Basic DB Commands Mysql
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in Linux - 17 Jan, 2014
by Zafar Malik - no comments

Problem: I was restarting my server’s mysql service when I got this issue as mysql stopped successfully but could not start and throwing below error message. Error Message: server quit without updating PID file (/var/lib/mysql/mysql.pid).[FAILED] Steps for Resolution: Step1: I checked my server’s error logs, where I got below error message. Error Messages: InnoDB: Initializing […]

in Linux Related Issues - 18 Sep, 2013
by Zafar Malik - no comments

Script is not executing through cron even executing manually (error:Permission denied):   Problem: I created a new script (myscript.sh) and scheduled through cron but this script was not executing even it was executing successfully when I was executing manually. Possible Reasons: 1. User Rights Issue: As this script was executing from root login same like […]

in Useful Linux Scripts - 27 Aug, 2013
by Zafar Malik - no comments