[tarantool-patches] Re: [PATCH 2/2] replication: don't stop syncing on configuration errors

Konstantin Osipov kostja at tarantool.org
Wed Sep 26 01:29:44 MSK 2018

* Vladimir Davydov <vdavydov.dev at gmail.com> [18/09/24 14:07]:
> When replication is restarted with the same replica set configuration
> (i.e. box.cfg{replication = box.cfg.replication}), there's a chance that
> an old relay will be still running on the master at the time when a new
> applier tries to subscribe. In this case the applier will get an error:

On the flip side once this change is made a really invalid
configuration (duplicate connection with the same replica id)
won't lead to an immediate disconnect. But since we continue
logging the error before applier_disconnect(), the user will still see:

>   main/152/applier/localhost:62649 I> can't join/subscribe
>   main/152/applier/localhost:62649 xrow.c:891 E> ER_CFG: Incorrect value for
>       option 'replication': duplicate connection with the same replica UUID

assuming this message is still printed it's OK to push.

Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov

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