If the mysql database daemon
does not start, check the appropriate log file in /var/lib/mysql/node_name.err for errors. One of the most
common reasons for this type of failure is that the mysql database daemon could not create a temporary file in the /tmp directory on start up.
Follow this procedure to resolve the problem:
Verify the /tmp directory permissions and change the permissions if needed:
# ls -l -d /tmp
# chmod 1777 /tmp |
Restart the mysql database daemon:
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