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https://issues.apache.org/jira/browse/HBASE-3095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928305#action_12928305
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HBase Review Board commented on HBASE-3095:
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Message from: "Jean-Daniel Cryans" <[email protected]>
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This is an automatically generated e-mail. To reply, visit:
http://review.cloudera.org/r/1167/
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Review request for hbase.
Summary
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Changes ZKW to send the SessionExpiredException in the abort call so that
clients can intercept it and reconnect to ZooKeeper by first clearing up their
state and establishing a new connection.
This addresses bug HBASE-3095.
http://issues.apache.org/jira/browse/HBASE-3095
Diffs
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/trunk/src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java
1030759
/trunk/src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWatcher.java
1030759
/trunk/src/test/java/org/apache/hadoop/hbase/TestZooKeeper.java 1030759
Diff: http://review.cloudera.org/r/1167/diff
Testing
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Adapted the client session expiration unit test.
Thanks,
Jean-Daniel
> Client needs to reconnect if it expires its zk session
> ------------------------------------------------------
>
> Key: HBASE-3095
> URL: https://issues.apache.org/jira/browse/HBASE-3095
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: Jean-Daniel Cryans
> Fix For: 0.90.0
>
>
> Clients use an HConnection down in their guts to connect to the hbase
> cluster. Master-is-running and root-region-location are up in zk. Setup of
> a new HConnection sets up a connection to ZooKeeper. If the session with ZK
> expires for whatever reason -- in tests they would expire because zk ensemble
> was restarted across tests or we might expire because of a long GC, well,
> it'll be frustrating to users if we do not just try and resetup the zk
> connection.
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