Index is out of bound when restarting datanode after 2 hours
------------------------------------------------------------
Key: HADOOP-2020
URL: https://issues.apache.org/jira/browse/HADOOP-2020
Project: Hadoop
Issue Type: Bug
Components: dfs
Reporter: Christian Kunz
Fix For: 0.15.0
I was told that dfs recovers when datanodes go down and come back after a
while, even when some blocks went missing.
As a test I stopped the datanode server on a single-node cluster and restarted
after 5 hours.
Dfs did not recover because of the following repeated exception:
2007-10-10 02:42:52,808 INFO org.apache.hadoop.ipc.Server: IPC Server handler 5
on 8020, call blockReport(127.0.0.1:50010,
[Lorg.apache.hadoop.dfs.Block;@ecb8c4) from 127.0.0.1:49678: error:
java.io.IOException: java.lang.AssertionError: Index is out of bound
java.io.IOException: java.lang.AssertionError: Index is out of bound
at org.apache.hadoop.dfs.BlocksMap$BlockInfo.getNext(BlocksMap.java:77)
at
org.apache.hadoop.dfs.DatanodeDescriptor$BlockIterator.next(DatanodeDescriptor.java:185)
at
org.apache.hadoop.dfs.DatanodeDescriptor$BlockIterator.next(DatanodeDescriptor.java:170)
at
org.apache.hadoop.dfs.DatanodeDescriptor.reportDiff(DatanodeDescriptor.java:325)
at org.apache.hadoop.dfs.FSNamesystem.processReport(FSNamesystem.java:2111)
at org.apache.hadoop.dfs.NameNode.blockReport(NameNode.java:621)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:340)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:609)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
