Mahesh, According to your logs and exception what I see, the issue you mentioned is not related to your problem. The similar with IGNITE-10010 problem is https://issues.apache.org/jira/browse/IGNITE-9562
You have thick client join to server topology: [16:35:34,948][INFO][disco-event-worker-#50][GridDiscoveryManager] Added new node to topology: TcpDiscoveryNode [id=5204d16d-e6fc-4cc3-a1d9-17edf59f961e, addrs=[0:0:0:0:0:0:0:1%lo, 127.0.0.1, 192.168.1.171], sockAddrs=[/0:0:0:0:0:0:0:1%lo:0, /127.0.0.1:0, / 192.168.1.171:0], discPort=0, order=1146, intOrder=579, lastExchangeTime=1569947734191, loc=false, ver=2.7.6#20190911-sha1:21f7ca41, *isClient=true*] Which causes Partitions Map Exchange on version *[1146, 0]*: [16:35:34,949][INFO][exchange-worker-#51][time] Started exchange init [topVer=AffinityTopologyVersion *[topVer=1146, minorTopVer=0]*, mvccCrd=MvccCoordinator [nodeId=84de670f-49e6-4dd8-9d14-4855fdd5acdf, crdVer=1569681573983, topVer=AffinityTopologyVersion [topVer=2, minorTopVer=0]], mvccCrdChange=false, crd=false, evt=NODE_JOINED, evtNode=5204d16d-e6fc-4cc3-a1d9-17edf59f961e, customEvt=null, allowMerge=true] Right after you have 2 cache destroy events. And the server node is down during process a single message from the thick client on version *[1146, 0]*: [16:36:08,567][SEVERE][sys-#37524][GridCacheIoManager] Failed processing message [senderId=5204d16d-e6fc-4cc3-a1d9-17edf59f961e, msg=GridDhtPartitionsSingleMessage [parts=null, partCntrs=null, partsSizes=null, partHistCntrs=null, err=null, client=true, finishMsg=null, activeQryTrackers=null, super=GridDhtPartitionsAbstractMessage [exchId=GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion *[topVer=1146, minorTopVer=0]*, discoEvt=null, nodeId=5204d16d, evt=NODE_JOINED], lastVer=GridCacheVersion [topVer=181162717, order=1569940014325, nodeOrder=1144], super=GridCacheMessage [msgId=7894, depInfo=null, err=null, skipPrepare=false]]]] java.lang.NullPointerException This is exactly the same problem described in ticket I mentioned in previous message. чт, 3 окт. 2019 г. в 15:04, Mahesh Renduchintala < [email protected]>: > Pavel, Thanks for your analysis. The two logs, that I attached, are those > of two server data nodes (none are configured in thick client mode). > The logs did show a server data node, losing connection and try to connect > back to the other node (192.168.1.6)... > > On second thoughts, the below still makes sense. > https://issues.apache.org/jira/browse/IGNITE-10010 > > Please check. > >
