Hi, We guess the issue we are facing is related to
https://issues.apache.org/jira/browse/CASSANDRA-9630. Will it be fixed in 3.11 release. Thanks and Regards A.SathishKumar On Fri, Dec 22, 2017 at 6:15 PM, sat <sathish.al...@gmail.com> wrote: > Hi, > > We tried rebooting again Node 1 and this time we observed nodetool status > displaying "UN" for all 3 nodes in node1. > > Executing nodetool status on "Node 3" displays "UN" for all the nodes. > > Executing nodetool status on "Node 2" displays "DN" for node 1 (rebooted > node) and "UN" for other 2 nodes. We also observed "Node 2" sending "Syn" > message to "Node 1", but no "Ack" received from "Node 1" initially for > 15min and then it is started receiving it. > > Please let us know the reason why "Node 2" is not receiving any "Ack" > message from "Node 1" for 10 -15 minutes and how it suddenly able to > receive "Ac" messages. > > Inter node communication port is 7000. > > 3 node cluster, and we have all 3 nodes as seed ips. > > Thanks and Regards > A.SathishKumar > > > > On Fri, Dec 22, 2017 at 5:15 PM, sat <sathish.al...@gmail.com> wrote: > >> Hi, >> >> We checked and we were able to telnet to port 7000. >> >> Thanks and Regards >> A.SathishKumar >> >> On Fri, Dec 22, 2017 at 3:43 PM, Nitan Kainth <nitankai...@gmail.com> >> wrote: >> >>> Try telnet on your listen port. It must be network issue due to port or >>> firewall issue. >>> >>> Sent from my iPhone >>> >>> On Dec 22, 2017, at 5:28 PM, sat <sathish.al...@gmail.com> wrote: >>> >>> >>> >>> Hi, >>> >>> We have 3 nodes in cluster, we rebooted one of the cassandra VM, we >>> noticed nodetool status returning "UN" for itself and "DN" for other node, >>> although we observe gossip sync and ack messages being shared between these >>> nodes. >>> >>> *Issue in Detail* >>> >>> *Nodes in cluster* >>> Node1 >>> Node 2 >>> Node 3 >>> >>> All above nodes formed cluster and nodetool status in all 3 machines >>> were "UN" >>> >>> We rebooted Node 1 and restarted cassandra on node1, then we ran >>> nodetool status and observed >>> >>> Node 1 - UN >>> Node 2 - DN >>> Node 3 - DN >>> >>> However when we run nodetool status on other 2 nodes (Node2, and Node 3) >>> they claim all 3 nodes are "UN" >>> >>> We enabled "Trace" level and checked Gossip messages and noticed "SYN", >>> "ACK" and "ACK2" initiated and received messages in Node 1 for other 2 >>> nodes, but still nodetool status marks other 2 nodes as down. >>> >>> Please let us know how nodetool detects other nodes as "DOWN". Any help >>> is highly appreciated. >>> >>> Thanks >>> A.SathishKumar >>> >>> >> >> >> -- >> A.SathishKumar >> 044-24735023 >> > > > > -- > A.SathishKumar > 044-24735023 > -- A.SathishKumar 044-24735023
