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Agostino Sarubbo commented on ZOOKEEPER-3758: --------------------------------------------- We are using iptables-based firewall and our cloud provider does not apply any restriction (i.e. there isn't a firewall on the cloud interface). However, we have no rules as OUTPUT and the policy is ACCEPT, so we are not blocking anything. In short I can ping the others zookeeper servers from the shell. Apart that I can try today or tomorrow your workaround > Update from 3.5.7 to 3.6.0 does not work > ---------------------------------------- > > Key: ZOOKEEPER-3758 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3758 > Project: ZooKeeper > Issue Type: Bug > Components: server > Reporter: Agostino Sarubbo > Assignee: Mate Szalay-Beko > Priority: Major > > Hello, > we have a cluster with 5 zookeeper servers. We tried the update from 3.5.7 > to 3.6.0 but it does not work. > We got the following: > {code:java} > 2020-03-16 10:40:45,514 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@863] > - Peer state changed: looking 2020-03-16 10:40:45,514 [myid:1] - WARN > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@1501] > - PeerState set to LOOKING 2020-03-16 10:40:45,514 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@1371] > - LOOKING 2020-03-16 10:40:45,514 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):FastLeaderElection@931] > - New election. My id = 1, proposed zxid=0x0 2020-03-16 10:40:45,515 > [myid:1] - INFO > [WorkerReceiver[myid=1]:FastLeaderElection$Messenger$WorkerReceiver@376] - > Notification: my state:LOOKING; n.sid:1, n.state:LOOKING , n.leader:1, > n.round:0x1b, n.peerEpoch:0x0, n.zxid:0x0, message format version:0x2, > n.config version:0x0 2020-03-16 10:40:45,517 [myid:1] - INFO > [WorkerReceiver[myid=1]:FastLeaderElection$Messenger$WorkerReceiver@376] - > Notification: my state:LOOKING; n.sid:2, n.state:FOLLOWI NG, n.leader:4, > n.round:0x1a, n.peerEpoch:0x5c, n.zxid:0x5b00000004, message format > version:0x2, n.config version:0x0 2020-03-16 10:40:45,517 [myid:1] - INFO > [WorkerReceiver[myid=1]:FastLeaderElection$Messenger$WorkerReceiver@376] - > Notification: my state:LOOKING; n.sid:3, n.state:FOLLOWI NG, n.leader:4, > n.round:0x1a, n.peerEpoch:0x5c, n.zxid:0x5b00000004, message format > version:0x2, n.config version:0x0 2020-03-16 10:40:45,517 [myid:1] - INFO > [WorkerReceiver[myid=1]:FastLeaderElection$Messenger$WorkerReceiver@376] - > Notification: my state:LOOKING; n.sid:5, n.state:FOLLOWI NG, n.leader:4, > n.round:0x1a, n.peerEpoch:0x5c, n.zxid:0x5b00000004, message format > version:0x2, n.config version:0x0 2020-03-16 10:40:45,518 [myid:1] - INFO > [WorkerReceiver[myid=1]:FastLeaderElection$Messenger$WorkerReceiver@376] - > Notification: my state:LOOKING; n.sid:4, n.state:LEADING , n.leader:4, > n.round:0x1a, n.peerEpoch:0x5c, n.zxid:0x5b00000004, message format > version:0x2, n.config version:0x0 2020-03-16 10:40:45,518 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@857] > - Peer state changed: following 2020-03-16 10:40:45,518 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@1453] > - FOLLOWING 2020-03-16 10:40:45,518 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ZooKeeperServer@1246] > - minSessionTimeout set to 4000 2020-03-16 10:40:45,518 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ZooKeeperServer@1255] > - maxSessionTimeout set to 40000 2020-03-16 10:40:45,519 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ResponseCache@45] > - Response cache size is initialized with value 400. 2020-03-16 10:40:45,519 > [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ResponseCache@45] > - Response cache size is initialized with value 400. 2020-03-16 10:40:45,519 > [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@111] > - zookeeper.pathStats.slotCapacity = 60 2020-03-16 10:40:45,519 [myid:1] - > INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@112] > - zookeeper.pathStats.slotDuration = 15 2020-03-16 10:40:45,519 [myid:1] - > INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@113] > - zookeeper.pathStats.maxDepth = 6 2020-03-16 10:40:45,519 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@114] > - zookeeper.pathStats.initialDelay = 5 2020-03-16 10:40:45,519 [myid:1] - > INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@115] > - zookeeper.pathStats.delay = 5 2020-03-16 10:40:45,519 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):RequestPathMetricsCollector@116] > - zookeeper.pathStats.enabled = false 2020-03-16 10:40:45,519 [myid:1] - > INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ZooKeeperServer@1470] > - The max bytes for all large requests are set t o 104857600 2020-03-16 > 10:40:45,519 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ZooKeeperServer@1484] > - The large request threshold is set to -1 2020-03-16 10:40:45,519 [myid:1] > - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):ZooKeeperServer@329] > - Created server with tickTime 2000 minSessionTim eout 4000 > maxSessionTimeout 40000 clientPortListenBacklog -1 datadir > /opt/loway/zookeeper/logs/version-2 snapdir > /opt/loway/zookeeper/data/version-2 2020-03-16 10:40:45,519 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):Follower@75] - > FOLLOWING - LEADER ELECTION TOOK - 4 MS 2020-03-16 10:40:45,519 [myid:1] - > INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):QuorumPeer@863] > - Peer state changed: following - discovery 2020-03-16 10:40:46,521 [myid:1] > - WARN > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):Follower@129] - > Exception when following the leader java.lang.IllegalArgumentException > at > java.util.concurrent.ThreadPoolExecutor.<init>(ThreadPoolExecutor.java:1314) > at > java.util.concurrent.ThreadPoolExecutor.<init>(ThreadPoolExecutor.java:1202) > at java.util.concurrent.Executors.newFixedThreadPool(Executors.java:89) > at > org.apache.zookeeper.server.quorum.Learner.connectToLeader(Learner.java:275) > at > org.apache.zookeeper.server.quorum.Follower.followLeader(Follower.java:87) > at > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:1455) > 2020-03-16 10:40:46,521 [myid:1] - INFO > [QuorumPeer[myid=1](plain=0.0.0.0:2181)(secure=0.0.0.0:2281):Follower@292] - > shutdown Follower{code} -- This message was sent by Atlassian Jira (v8.3.4#803005)