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https://issues.apache.org/jira/browse/HDFS-676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tsz Wo (Nicholas), SZE updated HDFS-676:
----------------------------------------
Description:
{noformat}
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.FSDataset.updateReplicaUnderRecovery(FSDataset.java:2089)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.updateReplicaUnderRecovery(DataNode.java:1598)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:516)
...
{noformat}
The problem can be reproduced by calling updateReplicaUnderRecovery(blockid)
with blockid not in the volumeMap.
was:
{noformat}
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.FSDataset.updateReplicaUnderRecovery(FSDataset.java:2089)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.updateReplicaUnderRecovery(DataNode.java:1598)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:516)
...
{noformat}
> Also could you please give more details on how to reporoduce the error.
I have updated the description.
> NPE in FSDataset.updateReplicaUnderRecovery(..)
> -----------------------------------------------
>
> Key: HDFS-676
> URL: https://issues.apache.org/jira/browse/HDFS-676
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: data-node
> Reporter: Tsz Wo (Nicholas), SZE
> Attachments: h676_20091005.patch
>
>
> {noformat}
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.datanode.FSDataset.updateReplicaUnderRecovery(FSDataset.java:2089)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.updateReplicaUnderRecovery(DataNode.java:1598)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 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:516)
> ...
> {noformat}
> The problem can be reproduced by calling updateReplicaUnderRecovery(blockid)
> with blockid not in the volumeMap.
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