Just noticed that, there was an INDEX creation in progress while backup was in progress. Could that be a reason for backup failure? It seems that the bug was fixed though, as per percona release note:
https://www.percona.com/doc/percona-xtrabackup/2.4/release-notes/2.4/2.4.3.html
Please let me know if more input is needed to investigate further.
Just noticed that, there was an INDEX creation in progress while backup was in progress.
Could that be a reason for backup failure?
It seems that the bug was fixed though, as per percona release note:
https:/ /www.percona. com/doc/ percona- xtrabackup/ 2.4/release- notes/2. 4/2.4.3. html
Please let me know if more input is needed to investigate further.