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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (HBASE-927) We don't recover if HRS hosting -ROOT-/.META. goes down
Date Wed, 03 Dec 2008 06:00:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Kellerman reopened HBASE-927:
---------------------------------


Backport for 0.18.2

> We don't recover if HRS hosting -ROOT-/.META. goes down
> -------------------------------------------------------
>
>                 Key: HBASE-927
>                 URL: https://issues.apache.org/jira/browse/HBASE-927
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: Jim Kellerman
>            Priority: Blocker
>             Fix For: 0.19.0
>
>
> To replicate, set up a cluster with a master and a regionserver.  Start up the the cluster.
 Kill the regionserver.  Master just does this over and over:
> {code}
> ...
> 2008-10-14 18:54:14,737 INFO org.apache.hadoop.hbase.master.BaseScanner: RegionManager.metaScanner
scanning meta region {regionname: .META.,,1, startKey: <>, server: XX.XX.XX.XX:60020}
> 2008-10-14 18:54:15,739 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:XX.XX.XX.XX:60020.
Already tried 0 time(s).
> 2008-10-14 18:54:16,742 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
XX.XX.XX.XX:60020. Already tried 1 time(s).
> 2008-10-14 18:54:17,744 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
XX.XX.XX.XX:60020. Already tried 2 time(s).
> 2008-10-14 18:54:18,747 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:XX.XX.XX.XX:60020.
Already tried 3 time(s).
> 2008-10-14 18:54:19,749 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
XX.XX.XX.XX:60020. Already tried 4 time(s).
> 2008-10-14 18:54:20,752 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
XX.XX.XX.XX:60020. Already tried 5 time(s).
> 2008-10-14 18:54:21,755 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:
XX.XX.XX.XX:60020. Already tried 6 time(s).
> 2008-10-14 18:54:22,757 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:XX.XX.XX.XX:60020.
Already tried 7 time(s).
> 2008-10-14 18:54:23,759 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:XX.XX.XX.XX:60020.
Already tried 8 time(s).
> 2008-10-14 18:54:24,762 INFO org.apache.hadoop.ipc.Client: Retrying connect to server:XX.XX.XX.XX:60020.
Already tried 9 time(s).
> 2008-10-14 18:54:24,763 WARN org.apache.hadoop.hbase.master.BaseScanner: Scan one META
region: {regionname: .META.,,1, startKey: <>, server: XX.XX.XX.XX:60020}
> java.io.IOException: Call failed on local exception
>         at org.apache.hadoop.ipc.Client.call(Client.java:718)
>         at org.apache.hadoop.hbase.ipc.HbaseRPC$Invoker.invoke(HbaseRPC.java:245)
>         at $Proxy2.openScanner(Unknown Source)
>         at org.apache.hadoop.hbase.master.BaseScanner.scanRegion(BaseScanner.java:159)
>         at org.apache.hadoop.hbase.master.MetaScanner.scanOneMetaRegion(MetaScanner.java:74)
>         at org.apache.hadoop.hbase.master.MetaScanner.maintenanceScan(MetaScanner.java:129)
>         at org.apache.hadoop.hbase.master.BaseScanner.chore(BaseScanner.java:139)
>         at org.apache.hadoop.hbase.Chore.run(Chore.java:62)
> Caused by: java.net.ConnectException: Connection refused
>         at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>         at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
>         at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:118)
>         at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:300)
>         at org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:177)
>         at org.apache.hadoop.ipc.Client.getConnection(Client.java:789)
>         at org.apache.hadoop.ipc.Client.call(Client.java:704)
>         ... 7 more
> 2008-10-14 18:54:24,766 INFO org.apache.hadoop.hbase.master.BaseScanner: all meta regions
scanned
> ...
> {code}
> Made it a blocker.

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