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https://issues.apache.org/jira/browse/HADOOP-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stack updated HADOOP-2308:
--------------------------
Status: Patch Available (was: Open)
Passes tests locally.
> [hbase] null regioninfo breaks meta scanner
> -------------------------------------------
>
> Key: HADOOP-2308
> URL: https://issues.apache.org/jira/browse/HADOOP-2308
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/hbase
> Reporter: stack
> Priority: Minor
> Attachments: 2308.patch
>
>
> Of a sudden, scanner starts reporting below:
> {code}
> ...
> 2007-11-29 00:23:44,778 DEBUG hbase.HMaster - HMaster.metaScanner scanner:
> -6615509571006418923 regioninfo: {regionname:
> postlog,img529/6013/46da7e3f111daje2.jpg,1196321411482, startKey:
> <img529/6013/46da7e3f111daje2.jpg>, tableDesc: {name: postlog, families:
> {cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
> max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
> compression: NONE, in memory: false, max length: 2147483647, bloom filter:
> none}}}}, server: XX.XX.XX.132:60020, startCode: 1196311486483
> 2007-11-29 00:23:44,778 DEBUG hbase.HMaster - Checking
> postlog,img529/6013/46da7e3f111daje2.jpg,1196321411482 is assigned
>
>
> 2007-11-29 00:23:44,779 DEBUG hbase.HMaster -
> HMaster.metaScanner scanner: -6615509571006418923 regioninfo: {regionname:
> postlog,img86/3396/batalla4rq3.png,1196321411483, startKey:
> <img86/3396/batalla4rq3.png>, tableDesc: {name: postlog, families:
> {cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
> max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
> compression: NONE, in memory: false, max length: 2147483647, bloom filter:
> none}}}}, server: XX.XX.XX.132:60020, startCode: 1196311486483
> 2007-11-29 00:23:44,779 DEBUG hbase.HMaster - Checking
> postlog,img86/3396/batalla4rq3.png,1196321411483 is assigned
>
>
> 2007-11-29 00:23:44,782 DEBUG hbase.HMaster -
> HMaster.metaScanner scanner: -6615509571006418923 regioninfo: {regionname:
> postlog,img87/3956/20070303003sp5.jpg,1196320397009, startKey:
> <img87/3956/20070303003sp5.jpg>, tableDesc: {name: postlog, families:
> {cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
> max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
> compression: NONE, in memory: false, max length: 2147483647, bloom filter:
> none}}}}, server: XX.XX.XX.22:60020, startCode: 1196311486822
> 2007-11-29 00:23:44,783 DEBUG hbase.HMaster - Checking
> postlog,img87/3956/20070303003sp5.jpg,1196320397009 is assigned
>
>
> 2007-11-29 00:23:44,786 ERROR hbase.HMaster -
> Unexpected exception
> java.lang.IllegalArgumentException: Can't build a writable with empty bytes
> array
>
>
> at
> org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:78)
>
>
>
> at org.apache.hadoop.hbase.HMaster$BaseScanner.scanRegion(HMaster.java:238)
> at
> org.apache.hadoop.hbase.HMaster$MetaScanner.scanOneMetaRegion(HMaster.java:695)
>
>
>
> at
> org.apache.hadoop.hbase.HMaster$MetaScanner.maintenanceScan(HMaster.java:758)
>
>
>
> at org.apache.hadoop.hbase.HMaster$BaseScanner.chore(HMaster.java:202)
> at org.apache.hadoop.hbase.Chore.run(Chore.java:58)
>
>
>
> 2007-11-29 00:23:44,789 INFO hbase.HMaster - HMaster.metaScanner
> scanning meta region regionname: .META.,,1, startKey: <>, server:
> XX.XX.XX.131:60020}
>
> 2007-11-29 00:23:44,806 DEBUG hbase.HMaster -
> HMaster.metaScanner scanner: -5184039432872494086 regioninfo: {regionname:
> postlog,,1196314409969, startKey: <>, tableDesc: {name: postlog, families:
> {cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
> max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
> compression: NONE, in memory: false, max length: 2147483647, bloom filter:
> none}}}}, server: XX.XX.XX.105:60020, startCode: 1196311486639
>
> 2007-11-29 00:23:44,807
> DEBUG hbase.HMaster - Checking postlog,,1196314409969 is assigned
> ...
> {code}
> Keeps at it... then seems to clean itself up after a long time.
> Later in the log, we start to have same problem again w/ seemingly different
> regioninfo.
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