We are running flink 1.10 cluster, with 3 zookeepers for HA. I noticed that trying to upgrade the zookeepers, even 1 by one, causes jobmanagers to crash
``` java.net.UnknownHostException: foo-host: Name or service not known at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324) at java.net.InetAddress.getAllByName0(InetAddress.java:1277) at java.net.InetAddress.getAllByName(InetAddress.java:1193) at java.net.InetAddress.getAllByName(InetAddress.java:1127) ``` With some google fu, we noticed https://github.com/apache/flink/pull/11938. Is there newer version of flink we can uptake where we can upgrade zookeepers without job manager downtime? And is there any other way around the fact, that having even a single zookeeper down causes the jobmanagers to crash, thus eliminating the usefulness of HA -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/