MySQL won’t reboot

After the 100% full hard disk problem I couldn’t get MySQL to restart. I looked at the error logs and found these lines.


151010 16:51:18 [ERROR] /usr/sbin/mysqld: Table './SS_connellsville/alerts' is marked as crashed and should be repaired
151010 16:51:18 [Warning] Checking table:   './SS_connellsville/alerts'
151010 16:51:56 [ERROR] /usr/sbin/mysqld: Table './SS_greensburg/values_RSSI_3' is marked as crashed and should be repaired
151010 16:51:56 [Warning] Checking table:   './SS_greensburg/values_RSSI_3'
151010 16:51:58 [ERROR] /usr/sbin/mysqld: Table './master/node_groups' is marked as crashed and should be repaired
151010 16:51:58 [Warning] Checking table:   './master/node_groups'

A stackoverflow post recommended using mysqlcheck. It must be used when the mysqld server is running. I couldn’t see how to set it to just repair the databases that were causing problems, but I figured that it wouldn’t hurt to run it on all of them. I was a bit concerned that it would run into problems when the cron jobs ran, but I set it running anyway. It changed the record count on all of the databases and ran for many hours. At least six, but I stopped monitoring and let it run overnight. I stopped MySQL and did a restart and it started without errors.


mysqlcheck --repair --use-frm --all-databases

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