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https://issues.apache.org/jira/browse/ZOOKEEPER-4412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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tian updated ZOOKEEPER-4412:
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Summary: client blocked too long before session timeout (was: client block
too long before session timeout)
> client blocked too long before session timeout
> ----------------------------------------------
>
> Key: ZOOKEEPER-4412
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4412
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Affects Versions: 3.4.14
> Reporter: tian
> Priority: Critical
>
> set Negotiated session timeout: 40000
> when switch failure, the client did not send suspend event to state listner
> after 180000 ms
> {code:java}
> // code placeholder
> [10.10.10.2][my-app][2021-11-05 13:55:38.701][
> WARN][????][16.195.152:2181)][o.a.z.ClientCnxn ] :
> [][][]Client session timed out, have not heard from server in 204988ms for
> sessionid 0x405005d85480c3d
> [10.10.10.2][my-app][2021-10-30 15:55:39.275][
> WARN][????][16.195.152:218)][o.a.z.ClientCnxn ] :
> [][][]Unable to reconnect to ZooKeeper service, session 0x405005d85480c3d has
> expired
> [10.10.10.2][my-app][2021-10-30 15:55:39.275][
> WARN][????][ain-EventThread][o.a.c.ConnectionState ] :
> [][][]Session expired event received{code}
> why after {color:#FF0000}204988ms {color:#172b4d}this client found client
> session timeout ? socket read timeout = 2/3 * sessiont time out , it blocked
> too long to discover network failure. what may cause this scene?{color}{color}
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