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https://issues.apache.org/jira/browse/ZOOKEEPER-1294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182125#comment-13182125
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Camille Fournier commented on ZOOKEEPER-1294:
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Glancing at the code, I think you might be right. Are you planning on writing a
test and a fix for this or should I?
> One of the zookeeper server is not accepting any requests
> ---------------------------------------------------------
>
> Key: ZOOKEEPER-1294
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1294
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Environment: 3 Zookeeper + 3 Observer with SuSe-11
> Reporter: amith
> Assignee: kavita sharma
>
> In zoo.cfg i have configured as
> server.1 = XX.XX.XX.XX:65175:65173
> server.2 = XX.XX.XX.XX:65185:65183
> server.3 = XX.XX.XX.XX:65195:65193
> server.4 = XX.XX.XX.XX:65205:65203:observer
> server.5 = XX.XX.XX.XX:65215:65213:observer
> server.6 = XX.XX.XX.XX:65225:65223:observer
> Like above I have configured 3 PARTICIPANTS and 3 OBSERVERS
> in the cluster of 6 zookeepers
> Steps to reproduce the defect
> 1. Start all the 3 participant zookeeper
> 2. Stop all the participant zookeeper
> 3. Start zookeeper 1(Participant)
> 4. Start zookeeper 2(Participant)
> 5. Start zookeeper 4(Observer)
> 6. Create a persistent node with external client and close it
> 7. Stop the zookeeper 1(Participant neo quorum is unstable)
> 8. Create a new client and try to find the node created b4 using exists api
> (will fail since quorum not statisfied)
> 9. Start the Zookeeper 1 (Participant stabilise the quorum)
> Now check the observer using 4 letter word (Server.4)
> linux-216:/home/amith/CI/source/install/zookeeper/zookeeper2/bin # echo stat
> | netcat localhost 65200
> Zookeeper version: 3.3.2-1031432, built on 11/05/2010 05:32 GMT
> Clients:
> /127.0.0.1:46370[0](queued=0,recved=1,sent=0)
> Latency min/avg/max: 0/0/0
> Received: 1
> Sent: 0
> Outstanding: 0
> Zxid: 0x100000003
> Mode: observer
> Node count: 5
> check the participant 2 with 4 letter word
> Latency min/avg/max: 22/48/83
> Received: 39
> Sent: 3
> Outstanding: 35
> Zxid: 0x100000003
> Mode: leader
> Node count: 5
> linux-216:/home/amith/CI/source/install/zookeeper/zookeeper2/bin #
> check the participant 1 with 4 letter word
> linux-216:/home/amith/CI/source/install/zookeeper/zookeeper2/bin # echo stat
> | netcat localhost 65170
> This ZooKeeper instance is not currently serving requests
> We can see the participant1 logs filled with
> 2011-11-08 15:49:51,360 - WARN
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:65170:NIOServerCnxn@642] - Exception
> causing close of session 0x0 due to java.io.IOException: ZooKeeperServer not
> running
> Problem here is participent1 is not responding / accepting any requests
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