Hi Barisa, Could you give us the full logs of the run? It looks a bit that you exceeded the maximum retry attempts while you upgraded your ZooKeeper cluster. You can increase it via recovery.zookeeper.client.retry-wait and recovery.zookeeper.client.max-retry-attempts.
>From Flink's perspective it is intended that the system fails after some time when it cannot connect to the ZooKeeper cluster. Cheers, Till On Wed, Feb 10, 2021 at 10:43 PM Barisa Obradovic <bbaj...@gmail.com> wrote: > Great, thank you for help Matthias > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ >
