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Posted to dev@hbase.apache.org by "Lars George (JIRA)" <ji...@apache.org> on 2008/02/26 01:39:51 UTC
[jira] Commented: (HBASE-471) IllegalStateException thrown in
client after region was split and deleted
[ https://issues.apache.org/jira/browse/HBASE-471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572320#action_12572320 ]
Lars George commented on HBASE-471:
-----------------------------------
This seems to happen for store operations as well as the above retrieve call:
[2008-02-25 16:32:33,272] ERROR [TP-Processor8] archive.MultilingualArchive - An error occurred.
java.lang.IllegalStateException: region offline: pdc-docs,US5840332_19981124,1203983417572
at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:432)
at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:343)
at org.apache.hadoop.hbase.HConnectionManager$TableServers.relocateRegion(HConnectionManager.java:311)
at org.apache.hadoop.hbase.HTable.getRegionLocation(HTable.java:113)
at org.apache.hadoop.hbase.HTable.commit(HTable.java:977)
at org.apache.hadoop.hbase.HTable.commit(HTable.java:941)
> IllegalStateException thrown in client after region was split and deleted
> -------------------------------------------------------------------------
>
> Key: HBASE-471
> URL: https://issues.apache.org/jira/browse/HBASE-471
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.1.0
> Environment: Linux Debian, HBase 0.16.0
> Reporter: Lars George
>
> For some reason a client sometimes fails to locate a row with a IllegalStateException when the region was split and deleted.
> > [2008-02-25 16:12:39,171] ERROR [http-80-Processor20] archive.MultilingualArchive - getDocument: An error occurred.
> > java.lang.IllegalStateException: region offline: pdc-docs,US7039976_20060509,1203981958556
> > at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:432)
> > at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:343)
> > at org.apache.hadoop.hbase.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:306)
> > at org.apache.hadoop.hbase.HTable.getRegionLocation(HTable.java:102)
> > at org.apache.hadoop.hbase.HTable.get(HTable.java:280)
> Tracing the region on the master shows this:
> > 2008-02-25 16:09:38,761 DEBUG org.apache.hadoop.hbase.HMaster: Received MSG_REGION_SPLIT :
> +pdc-docs,US7039976_20060509,1203981958556 from 192.168.105.21:60020
> > 2008-02-25 16:09:38,761 INFO org.apache.hadoop.hbase.HMaster: region pdc-docs,US7039976_20060509,1203981958556 split. New regions
> +are: pdc-docs,US7039976_20060509,1203984578345, pdc-docs,US7046359_20060516,1203984578345
> > 2008-02-25 16:10:02,470 DEBUG org.apache.hadoop.hbase.HMaster: HMaster.metaScanner regioninfo: {regionname:
> +pdc-docs,US7039976_20060509,1203981958556, startKey: <US7039976_20060509>, endKey: <US7053021_20060530>, encodedName: 1260314009,
> +offline: true, split: true, tableDesc: {name: pdc-docs, families: {contents:={name: contents, max versions: 3, compression: NONE, in
> +memory: false, max length: 2147483647, bloom filter: none}, language:={name: language, max versions: 3, compression: NONE, in
> +memory: false, max length: 2147483647, bloom filter: none}, mimetype:={name: mimetype, max versions: 3, compression: NONE, in
> +memory: false, max length: 2147483647, bloom filter: none}}}}, server: 192.168.105.21:60020, startCode: 1203949130468
> > 2008-02-25 16:10:02,513 DEBUG org.apache.hadoop.hbase.HMaster: pdc-docs,US7039976_20060509,1203984578345 no longer has references
> +to pdc-docs,US7039976_20060509,1203981958556
> > 2008-02-25 16:10:02,516 DEBUG org.apache.hadoop.hbase.HMaster: pdc-docs,US7046359_20060516,1203984578345 no longer has references
> +to pdc-docs,US7039976_20060509,1203981958556
> > 2008-02-25 16:10:02,516 INFO org.apache.hadoop.hbase.HMaster: Deleting region pdc-docs,US7039976_20060509,1203981958556 because
> +daughter splits no longer hold references
> After discussion with st^ack it seems that the server is simply not retrying IllegalStateException but IOExceptions only. Also see HBASE-452 which should be addressed at the same time.
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