Mysqld got signal 11 MySQL 5.7

[nublaii]

Cluster dies after update with signal 11 error

We just upgraded a small cluster (2 nodes + 1 garbd) from 5.7.39-31.61-1.focal to 5.7.40-31.63-1.focal. We are running ubuntu 20.04, all OS packages up to date. After the update we’ve had the cluster die on us twice y 4 days. On both occasions the error was the same: First one of the nodes dies suddently with a signal 11 11:59:46 UTC - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, im…

Sounds familiar…