Hi Sachin,
On Mon, Nov 28, 2016 at 4:49 AM, Sachin Setiya <[email protected]>
wrote:
> Hi Nirbhay,
>
> if (IF_WSREP(thd->wsrep_applier,1))
>
> {
>
> plugin_thdvar_init(thd);
>
> }
>
> This code in commit , breaks log writing on other nodes(In galera) , It
> sets
> the thd->variables to global system variable.
> And this
>
> if (wsrep_emulate_bin_log || !(thd->variables.option_bits &
> OPTION_BIN_LOG))
> DBUG_RETURN(0);
>
> code here make write_transaction_to_binlog() function exit.
>
This was MDEV-10944. You need to pull the latest 10.1 commits and
possibly cherry-pick the fix to 10.2, in case it has not been up-merged
yet.
> I am unable to understand purpose of applying plugin_thdvar_init(thd);
> for wsrep_applier threads.
>
This is done because the startup wsrep threads (applier, replayer)
are created before some plugin-related variables are initialized.
> Because this is applied on first thread only and not applied to
> remaining threads.
>
Its only applicable to start-up wsrep threads.
Best,
Nirbhay
> --
> Regards
> Sachin Setiya
> Software Engineer at MariaDB
>
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