Dear Hou,
> Thanks for the suggestion.
>
> I tried to add a WaitLatch, but it seems affect the performance
> because the Latch might not be set when leader send some
> message to parallel apply worker which means it will wait until
> timeout.
Yes, currently it leader does not notify anything.
To handle that leader must set a latch in parallel_apply_send_data().
It can be done if leader accesses to winfo->shared-> logicalrep_worker_slot_no,
and sets a latch for LogicalRepCtxStruct->worker[slot_no].
Best Regards,
Hayato Kuroda
FUJITSU LIMITED
