Hi Varun, you need to either add the participant to the cluster before start it, or enable participant auto-join config:
add participant to cluster: ./helix-admin.sh --zkSvr <ZookeeperServerAddress, e.g. localhost:2181> --addNode <clusterName, e.g. terrapin> <instanceId, e.g. hdfsterrapin-a-datanode-531b2679_9090> or, enable auto-join config: ./helix-admin.sh --zkSvr <ZookeeperServerAddress> --setConfig CLUSTER <clusterName> allowParticipantAutoJoin=true Thanks, Jason From: Varun Sharma <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Tuesday, August 19, 2014 11:47 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Error on participant while joining cluster I am getting the following error while trying to join a cluster as a participant. THe cluster is setup and a controller has already connected to it. Can someone help out as to why this is happening ? 2014-08-19 18:41:36,843 [main] (ZKHelixManager.java:727) INFO Handling new session, session id: 147a7beb2dd63f4, instance: hdfsterrapin-a-datanode-531b2679:9090, instanceTye: PARTICIPANT, cluster: terrapin, zkconnection: State:CONNECTED Timeout:30000 sessionid:0x147a7beb2dd63f4 local:/10.65.145.80:43854<http://10.65.145.80:43854> remoteserver:terrapinzk001a/10.115.59.31:2181<http://10.115.59.31:2181> lastZxid:0 xid:1 sent:1 recv:1 queuedpkts:0 pendingresp:0 queuedevents:0 2014-08-19 18:41:36,843 [main] (ParticipantHealthReportTask.java:67) WARN ParticipantHealthReportTimerTask already stopped 2014-08-19 18:41:36,914 [main] (ParticipantManagerHelper.java:101) INFO instance: hdfsterrapin-a-datanode-531b2679:9090 auto-joining terrapin is false 2014-08-19 18:41:36,917 [main] (ZKUtil.java:95) INFO Invalid instance setup, missing znode path: /terrapin/CONFIGS/PARTICIPANT/hdfsterrapin-a-datanode-531b2679:9090 2014-08-19 18:41:36,918 [main] (ZKUtil.java:95) INFO Invalid instance setup, missing znode path: /terrapin/INSTANCES/hdfsterrapin-a-datanode-531b2679:9090/MESSAGES 2014-08-19 18:41:36,918 [main] (ZKUtil.java:95) INFO Invalid instance setup, missing znode path: /terrapin/INSTANCES/hdfsterrapin-a-datanode-531b2679:9090/CURRENTSTATES 2014-08-19 18:41:36,919 [main] (ZKUtil.java:95) INFO Invalid instance setup, missing znode path: /terrapin/INSTANCES/hdfsterrapin-a-datanode-531b2679:9090/STATUSUPDATES 2014-08-19 18:41:36,920 [main] (ZKUtil.java:95) INFO Invalid instance setup, missing znode path: /terrapin/INSTANCES/hdfsterrapin-a-datanode-531b2679:9090/ERRORS 2014-08-19 18:41:36,920 [main] (ZKHelixManager.java:496) ERROR fail to createClient. org.apache.helix.HelixException: Initial cluster structure is not set up for instance: hdfsterrapin-a-datanode-531b2679:9090, instanceType: PARTICIPANT at org.apache.helix.manager.zk.ParticipantManagerHelper.joinCluster(ParticipantManagerHelper.java:108) at org.apache.helix.manager.zk.ZKHelixManager.handleNewSessionAsParticipant(ZKHelixManager.java:869) at org.apache.helix.manager.zk.ZKHelixManager.handleNewSession(ZKHelixManager.java:838) at org.apache.helix.manager.zk.ZKHelixManager.createClient(ZKHelixManager.java:493) at org.apache.helix.manager.zk.ZKHelixManager.connect(ZKHelixManager.java:519) at com.pinterest.terrapin.server.TerrapinServerHandler.start(TerrapinServerHandler.java:84) at com.pinterest.terrapin.server.TerrapinServerMain.main(TerrapinServerMain.java:31) 2014-08-19 18:41:36,921 [main] (ZKHelixManager.java:522) ERROR fail to connect hdfsterrapin-a-datanode-531b2679:9090 org.apache.helix.HelixException: Initial cluster structure is not set up for instance: hdfsterrapin-a-datanode-531b2679:9090, instanceType: PARTICIPANT at org.apache.helix.manager.zk.ParticipantManagerHelper.joinCluster(ParticipantManagerHelper.java:108) at org.apache.helix.manager.zk.ZKHelixManager.handleNewSessionAsParticipant(ZKHelixManager.java:869) at org.apache.helix.manager.zk.ZKHelixManager.handleNewSession(ZKHelixManager.java:838) at org.apache.helix.manager.zk.ZKHelixManager.createClient(ZKHelixManager.java:493) at org.apache.helix.manager.zk.ZKHelixManager.connect(ZKHelixManager.java:519) at com.pinterest.terrapin.server.TerrapinServerHandler.start(TerrapinServerHandler.java:84) at com.pinterest.terrapin.server.TerrapinServerMain.main(TerrapinServerMain.java:31)
