Patch good to push.
Oystein Grovlen wrote:
> #At file:///export/home/tmp/oysteing/mysql/mysql-6.0-backup/
>
> 2676 Oystein Grovlen 2008-08-06
> Bug#36795 Concurrency issues when starting backups in parallel.
>
> Raise condition on Backup_restore_ctx::mem_alloc since it is static.
> The failing backup will set mem_alloc to null when terminating. The
> next time the running backup wants to allocate memory, an assert will
> fail.
>
> Makes mem_alloc non-static. That way, concurrent backups will not
> interfere. This requires that it is possible to bstream_alloc to find
> the right Backup_restore_ctx to use. Fixes that by changing the
> static is_running flag to a static pointer, current_op, to the
> Backup_restore_ctx
> of the currently running backup. If the pointer is null, it means
> that no backup is currently running.
--
Jørgen Løland
