I have been running into this issue every time I try and sync a medium size JSON object to my database so we can perform some reporting on it. From looking into what can cause i
This error occurs when mysqldump is in progress. It doesn't matter which DB dump is in progress. Wait for the dump to finish and this error will vanish.
The issue is with the table definition being dumped which cause this error.
Yeah I tried changing these mysql settings, but it still occurs sometime (mostly when running heavy mysql backups/dumps at night)..
table_open_cache 128=>16384
table_definition_cache 1024=>16384