Hi,
We use HBase 0.20.1
I saw the following in regionserver log:
2010-03-05 16:02:57,952 ERROR [IPC Server handler 60 on 60020]
regionserver.HRegionServer(844):
org.apache.hadoop.hbase.UnknownScannerException: Name: -1
at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1925)
at sun.reflect.GeneratedMethodAccessor34.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:648)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
2010-03-05 16:03:09,234 DEBUG [pool-1-thread-1] hfile.LruBlockCache(551):
Cache Stats: Sizes: Total=46.31048MB (48560056), Free=1179.1646MB
(1236443592), Max=1225.475MB (1285003648), Counts: Blocks=481,
Access=1508314, Hit=1482340, Miss=25974, Evictions=0, Evicted=0, Ratios: Hit
Ratio=98.27794432640076%, Miss Ratio=1.7220553010702133%, Evicted/Run=NaN
At the same time, client complained:
org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
region server 10.10.31.136:60020 for region ruletable,,1267831180107, row
'', but failed after 10 attempts.
Exceptions:
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
java.io.IOException: Call to /10.10.31.136:60020 failed on local exception:
java.io.EOFException
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:1048)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:1935)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.initialize(HTable.java:1855)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:376)
at
net.kindsight.webmap.rules.datastore.HBaseDataStore.get(HBaseDataStore.java:297)
What should I do to get pass the UnknownScannerException ?
Thanks
