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https://issues.apache.org/jira/browse/HBASE-10793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941101#comment-13941101
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stack commented on HBASE-10793:
-------------------------------
ok
> AuthFailed as a valid zookeeper state
> --------------------------------------
>
> Key: HBASE-10793
> URL: https://issues.apache.org/jira/browse/HBASE-10793
> Project: HBase
> Issue Type: Bug
> Components: Zookeeper
> Affects Versions: 0.96.0
> Reporter: Demai Ni
> Assignee: Demai Ni
> Fix For: 0.96.2, 0.99.0, 0.98.2
>
> Attachments: HBASE-10793-trunk-v0.patch
>
>
> In kerberos mode, Zookeeper accepts SASL authentication. The AuthFailed
> message indicates the client could not be authenticated, but it should
> proceed anyway, because only access to znodes that require SASL
> authentication will be denied and this client may never need to access them.
> Furthermore, AuthFailed is a valid event supported by Zookeeper, and
> following are valid Zookeeper events:
> case 0: return KeeperState.Disconnected;
> case 3: return KeeperState.SyncConnected;
> case 4: return KeeperState.AuthFailed;
> case 5: return KeeperState.ConnectedReadOnly;
> case 6: return KeeperState.SaslAuthenticated;
> case -112: return KeeperState.Expired;
> Based on above, ZooKeeperWatcher should not throw exception for AuthFailed
> event as an invalid event. For this kind of event, Zookeeper already logs it
> as a warning and proceed with non-SASL connection.
> {code:title=IllegalStateException from ZookeeperWatcher|borderStyle=solid}
> hbase(main):006:0> list
> TABLE
>
>
> 14/01/23 17:26:11 ERROR zookeeper.ClientCnxn: Error while calling watcher
> java.lang.IllegalStateException: Received event is not valid: AuthFailed
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.connectionEvent(ZooKeeperWatcher.java:410)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.process(ZooKeeperWatcher.java:319)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:519)
> at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
> BIMonitoring
>
>
> BIMonitoringSummary
>
>
> BIMonitoringSummary180
>
>
> BIMonitoringSummary900
>
>
> LogMetadata
>
>
> LogRecords
>
>
> Mtable
>
>
> t1
>
>
> t2
>
>
> 9 row(s) in 0.4040 seconds
> => ["BIMonitoring", "BIMonitoringSummary", "BIMonitoringSummary180",
> "BIMonitoringSummary900", "LogMetadata", "LogRecords", "Mtable", "t1", "t2"]
> {code}
> the patch will be similar as HBase-8757
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