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Posted to common-dev@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2007/12/01 13:14:44 UTC
[jira] Commented: (HADOOP-2308) [hbase] null regioninfo breaks meta
scanner
[ https://issues.apache.org/jira/browse/HADOOP-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547420 ]
Hudson commented on HADOOP-2308:
--------------------------------
Integrated in Hadoop-Nightly #319 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/319/])
> [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
> Fix For: 0.16.0
>
> 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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