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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-3439) Observability improvements on client / server connection close
Date Tue, 02 Jul 2019 23:35:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16877364#comment-16877364
] 

Hudson commented on ZOOKEEPER-3439:
-----------------------------------

SUCCESS: Integrated in Jenkins build ZooKeeper-trunk #598 (See [https://builds.apache.org/job/ZooKeeper-trunk/598/])
ZOOKEEPER-3439: Observability improvements on client / server connection (hanm: rev 9bee98bd06f50a2085785406a1084f75c652ada1)
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerCnxnFactory.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NIOServerCnxnFactory.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NIOServerCnxn.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/auth/EnsembleAuthenticationProvider.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/DumbWatcher.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/QuorumPeer.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/NIOServerCnxnTest.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NettyServerCnxn.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/quorum/ZabUtils.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/MockServerCnxn.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServer.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NettyServerCnxnFactory.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerCnxn.java


> Observability improvements on client / server connection close
> --------------------------------------------------------------
>
>                 Key: ZOOKEEPER-3439
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3439
>             Project: ZooKeeper
>          Issue Type: Improvement
>          Components: server
>    Affects Versions: 3.6.0
>            Reporter: Michael Han
>            Assignee: Michael Han
>            Priority: Major
>              Labels: Twitter, pull-request-available
>             Fix For: 3.6.0
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> Currently when server close a client connection there is not enough information recorded
(except few exception logs) which makes it hard to do postmortems. On the other side, having
a complete view of the aggregated connection closing reason will provide more signals based
on which we can better operate the clusters (e.g. predicate an incident might happen based
on the trending of the connection closing reasons).



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