Alexander Kukushkin 77382e75dc Compatibility with kazoo-2.7+ (#1982) ...

Old versions of `kazoo` immediately discarded all requests to Zookeeper if the connection is in the `SUSPENDED` state. This is absolutely fine because Patroni is handling retries on its own.
Starting from 2.7, kazoo started queueing requests instead of discarding and as a result, the Patroni HA  loop was getting stuck until the connection to Zookeeper is reestablished, causing no demote of the Postgres.
In order to return to the old behavior we override the `KazooClient._call()` method.

In addition to that, we ensure that the `Postgresql.reset_cluster_info_state()` method is called even if DCS failed (the order of calls was changed in the #1820).

Close https://github.com/zalando/patroni/issues/1981

2021-06-30 09:11:27 +02:00

1.3 KiB

Raw Permalink Blame History

View Raw