Hello Barisa, Seems like you asked the same question as me just ~ a week ago!
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ZooKeeper-connection-SUSPENDING-td38779.html We will have to wait until the feature mentioned in the JIRA ticket is implemented. Best, Kenzyme Le ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Wednesday, October 21st, 2020 at 12:10 PM, Barisa Obradovic <bbaj...@gmail.com> wrote: > 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/
