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HBase >> mail # user >> Region is not online: .META.,,1


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Region is not online: .META.,,1
Hi,

I have a cluster with 10 RS and 1 Master.
From some reason, any call to the HBase fails. I ran hbck and got the same failure:

Tue Nov 06 13:27:07 UTC 2012, org.apache.hadoop.hbase.client.ScannerCallable@7d8a8ce2, org.apache.hadoop.hbase.NotServingRegionException: org.apache.hadoop.hbase.NotServingRegionException: Region is not online: .META.,,1

at org.apache.hadoop.hbase.client.ServerCallable.withRetries(ServerCallable.java:183)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:196)
at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:48)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:126)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:123)
at org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:359)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:123)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:99)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:77)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:61)
at org.apache.hadoop.hbase.util.HBaseFsck.loadMetaEntries(HBaseFsck.java:2234)
at org.apache.hadoop.hbase.util.HBaseFsck.onlineConsistencyRepair(HBaseFsck.java:334)
at org.apache.hadoop.hbase.util.HBaseFsck.onlineHbck(HBaseFsck.java:382)
at org.apache.hadoop.hbase.util.HBaseFsck.main(HBaseFsck.java:3120)
Anyone has any idea how to fix it without the obvious restart?

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Mesika, Asaf 2012-11-07, 06:08
+
Mesika, Asaf 2012-11-08, 14:31
+
Leonid Fedotov 2012-11-07, 15:43
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Mesika, Asaf 2012-11-08, 12:23