Re: Upgrading existing non-TLS cluster with no downtime

2020-07-20 Thread Sankalp Bhatia
Thanks Mate for the responses. Brings a lot of clarity to me. I was able to get it working this time without downtime. Don't know what I did wrong the last time though. On Mon, 20 Jul 2020 at 12:57, Szalay-Bekő Máté wrote: > echo "stat" | nc localhost 2182Hi, > > I guess this is the part you

Re: Strange zoo.cfg.dynamic.next generated via zookeeper Docker image

2020-07-20 Thread Szalay-Bekő Máté
Hello, Can you try to change your configs by not using 0.0.0.0 in the ZOO_SERVERS? Using 0.0.0.0 is not a recommended config since 3.5. If the java process can not bind (due to some virtual network issue) to the host provided in it's config, then you can use the quorumListenOnAllIPs parameter.

Re: Upgrading existing non-TLS cluster with no downtime

2020-07-20 Thread Szalay-Bekő Máté
echo "stat" | nc localhost 2182Hi, I guess this is the part you are referring: https://zookeeper.apache.org/doc/r3.5.8/zookeeperAdmin.html#Upgrading+existing+nonTLS+cluster (your link was pointing to the 3.3.2 admin guide where this chapter was missing) > 1) When I set sslQuorum=true and

Re: Zookeeper session expiration

2020-07-20 Thread shrikant kalani
Currently our production is running with 3.5.5 and it will take time to move to 3.6.1. When I dig more into this it seems to be related to Netty protocol and it’s limitation. The system is stable when I fail back to NIO and without SSL. As soon as I turned on Netty we are seeing sessions getting

Re: Zookeeper session expiration

2020-07-20 Thread Szalay-Bekő Máté
Hello, can you reproduce the problem with the latest 3.5 version? I mean 3.5.8. There were a few bugfixes recently that can help. e.g.: https://issues.apache.org/jira/browse/ZOOKEEPER-3756 Also you can try to increase some timeout parameters, see