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https://issues.apache.org/jira/browse/ZOOKEEPER-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mate Szalay-Beko reassigned ZOOKEEPER-3758:
-------------------------------------------

    Assignee: Mate Szalay-Beko

> 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}



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