Start the zookeeper ensemble first before starting Kafka cluster. They need to select a leader and ensure that they all come online OK. Check port 2181, 2888, 3888 using
netstat -plten|egrep '2181|2888|3888' tcp 0 0 :::2181 :::* LISTEN 1005 9934134 29170/java tcp 0 0 ::ffff:50.140.197.217:2888 :::* LISTEN 1005 9935496 29170/java tcp 0 0 ::ffff:50.140.197.217:3888 :::* LISTEN 1005 9935493 29170/java P.S. I assume you are talking about Apache Kafks here. HTH LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* *Disclaimer:* Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction. On Mon, 19 Oct 2020 at 14:42, Sabina Marx <sabina.m...@sneo.io> wrote: > Hi, > > I have a 5 nodes kafka cluster with 3 zookeepers. If I restart 1 node > (zookeeper and kafka) the kafka gets a Client session timed out, have not > heard from server in 6007ms for sessionid 0x0 > (org.apache.zookeeper.ClientCnxn) > Client session timed out, have not heard from server in 6007ms for > sessionid 0x0, closing socket connection and attempting reconnect > (org.apache.zookeeper.ClientCnxn) > And my kafka service do not start. > I have set the tickTime=6000 in the zookeeper.properties but that didn’t > help. What can I do? > > Many thanks for your help. > Sabina >
