Vlad, if you want to insert some extra debug logging into the XB InnoDB
code we have a sort of easy way to do that, the we can re-run the test
case that eventually reproduces the issue on backup and watch the logs.
On 6/10/2013 12:15 AM, Vlad Lesin wrote:
> If we would have repeatable test case we could check if LSN of
> MLOG_PAGE_CREATE command for the (space, page) pair is greater then the
> last checkpoint LSN. If so then the issue is in wrong start LSN
> calculation inside of xtrabackup, otherwise the issue is in innodb
> engine because the page was not flushed on checkpoint.
>
--
George O. Lorch III
Software Engineer, Percona
+1-888-401-3401 x542 US/Arizona (GMT -7)
skype: george.ormond.lorch.iii
Vlad, if you want to insert some extra debug logging into the XB InnoDB
code we have a sort of easy way to do that, the we can re-run the test
case that eventually reproduces the issue on backup and watch the logs.
On 6/10/2013 12:15 AM, Vlad Lesin wrote:
> If we would have repeatable test case we could check if LSN of
> MLOG_PAGE_CREATE command for the (space, page) pair is greater then the
> last checkpoint LSN. If so then the issue is in wrong start LSN
> calculation inside of xtrabackup, otherwise the issue is in innodb
> engine because the page was not flushed on checkpoint.
>
-- ormond. lorch.iii
George O. Lorch III
Software Engineer, Percona
+1-888-401-3401 x542 US/Arizona (GMT -7)
skype: george.