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Re: Known limitation with TokuDB in Read Free Replication & parallel replication ?


Hi Kristian,

Thanks for the quick answer! I wonder if it would be possible the automatically disable the optimistic parallel replication for an engine if it does not implement it ?

If both InnoDB & TokuDB engine are used for example, the current behaviour prevents from using the parallel replication for the InnoDB tables.



Le 15/07/2016 à 16:40, Kristian Nielsen a écrit :
jocelyn fournier <jocelyn.fournier@xxxxxxxxx> writes:

After upgrading from TokuDB Enterprise with MariaDB 5.5 to MariaDB
10.1.14, I tried to enable the parallel replication
(parallel_mode=optimistic, slave_parallel_threads=4) on a GTID enabled
Is this a known limitation with TokuDB ?
Yes. TokuDB does not (to my knowledge) implement the thd_report_wait_for()
API, which is what makes optimistic parallel replication work.

  - Kristian.

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