NativeException: org.apache.hadoop.hbase.client.NoServerForRegionException: No
server address listed in .META. for region item,,1274235159640
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Key: HBASE-2606
URL: https://issues.apache.org/jira/browse/HBASE-2606
Project: Hadoop HBase
Issue Type: Bug
Affects Versions: 0.20.4
Environment: Linux x86_64, java 1.6.0_20, hbase 0.20.4, CDH3
Reporter: Sam Pullara
Fix For: 0.20.5
Though the region is listed when you attempt to access it you get an error that
it is not assigned to a region. In the log you find this repeating over and
over:
2010-05-23 16:10:08,958 INFO org.apache.hadoop.hbase.master.ServerManager: 1
region servers, 0 dead, average load 5.0
2010-05-23 16:10:09,519 INFO org.apache.hadoop.hbase.master.BaseScanner:
RegionManager.rootScanner scanning meta region {server: 10.211.55.4:60020,
regionname: -ROOT-,,0, startKey: <>}
2010-05-23 16:10:09,529 INFO org.apache.hadoop.hbase.master.BaseScanner:
RegionManager.rootScanner scan of 1 row(s) of meta region {server:
10.211.55.4:60020, regionname: -ROOT-,,0, startKey: <>} complete
2010-05-23 16:10:52,178 INFO org.apache.hadoop.hbase.master.BaseScanner:
RegionManager.metaScanner scanning meta region {server: 10.211.55.4:60020,
regionname: .META.,,1, startKey: <>}
2010-05-23 16:10:52,188 DEBUG org.apache.hadoop.hbase.master.BaseScanner:
Current assignment of item,,1274235159640 is not valid; serverAddress=,
startCode=0 unknown.
2010-05-23 16:10:52,193 INFO org.apache.hadoop.hbase.master.BaseScanner:
RegionManager.metaScanner scan of 3 row(s) of meta region {server:
10.211.55.4:60020, regionname: .META.,,1, startKey: <>} complete
2010-05-23 16:10:52,193 INFO org.apache.hadoop.hbase.master.BaseScanner: All 1
.META. region(s) scanned
2010-05-23 16:10:53,139 INFO org.apache.hadoop.hbase.master.RegionManager:
Assigning region item,,1274235159640 to hbase,60020,1274655730505
2010-05-23 16:10:53,143 INFO org.apache.hadoop.hbase.master.ServerManager:
Processing MSG_REPORT_OPEN: item,,1274235159640 from hbase,60020,1274655730505;
1 of 1
2010-05-23 16:10:53,143 DEBUG org.apache.hadoop.hbase.master.HMaster:
Processing todo: PendingOpenOperation from hbase,60020,1274655730505
2010-05-23 16:10:53,143 INFO
org.apache.hadoop.hbase.master.RegionServerOperation: item,,1274235159640 open
on 10.211.55.4:60020
2010-05-23 16:10:53,146 INFO
org.apache.hadoop.hbase.master.RegionServerOperation: Updated row
item,,1274235159640 in region .META.,,1 with startcode=1274655730505,
server=10.211.55.4:60020
Doing a flush and a major_compaction of the table resets it. I have a VM
snapshot that has the behavior and it is reproducible at will. Attached are
the log files from the .META. region at jdcryans request.
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