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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-3421) Better insight into Observer connections
Date Sat, 29 Jun 2019 02:18:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875348#comment-16875348
] 

Hudson commented on ZOOKEEPER-3421:
-----------------------------------

SUCCESS: Integrated in Jenkins build Zookeeper-trunk-single-thread #426 (See [https://builds.apache.org/job/Zookeeper-trunk-single-thread/426/])
ZOOKEEPER-3421: Better insight into Observer connections (hanm: rev 02c203fa486ac24553d9584768fe97960b6dec24)
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/Leader.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/LearnerHandler.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/admin/Commands.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/Follower.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/admin/CommandsTest.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/ObserverMaster.java


> Better insight into Observer connections
> ----------------------------------------
>
>                 Key: ZOOKEEPER-3421
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3421
>             Project: ZooKeeper
>          Issue Type: Wish
>          Components: server
>    Affects Versions: 3.6.0
>            Reporter: Brian Nixon
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.6.0
>
>          Time Spent: 1h 40m
>  Remaining Estimate: 0h
>
> With the introduction of the Learner Master feature in ZOOKEEPER-3140, tracking the state
of the Observers synced with the voting quorum became more difficult from an operational perspective.
Observers could now be synced with any voting member and not just the leader and to discover
where an observer was being hosted required digging in to the server logs or complex jmx queries.
>  
> Add commands that externalize the state of observers from the point of view of the voting
quorum.



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