[
https://issues.apache.org/jira/browse/HDFS-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Uma Maheswara Rao G updated HDFS-2906:
--------------------------------------
Description:
Scenario:
1) Start the cluster with one NN and two DN's.
2) Keep restart one DN for every 10mins.
3) Let's keep the clients to write the data continuosly.
Observed below trace.
{noformat}
2012-02-07 01:03:45,897 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
HOST-10-18-40-23:50010:DataXceiver error processing WRITE_BLOCK operation src:
/10.18.40.20:23862 dest: /10.18.40.23:50010
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:151)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:340)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:167)
at java.lang.Thread.run(Thread.java:619)
2012-02-07 01:03:46,083 INFO org.apache.hadoop.hdfs.server.common.Storage:
Locking is disabled
{noformat}
was:
Stared with NN two DN's and one DN is keep on restarting(for every 10mins)
while write inprogress
{noformat}
2012-02-07 01:03:45,897 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
HOST-10-18-40-23:50010:DataXceiver error processing WRITE_BLOCK operation src:
/10.18.40.20:23862 dest: /10.18.40.23:50010
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:151)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:340)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:167)
at java.lang.Thread.run(Thread.java:619)
2012-02-07 01:03:46,083 INFO org.apache.hadoop.hdfs.server.common.Storage:
Locking is disabled
{noformat}
Summary: NullPointerExeception in BlockReceiver on DataNode restart.
(was: NullPointerExecption in BlockReceiver on DataNode restart.)
> NullPointerExeception in BlockReceiver on DataNode restart.
> -----------------------------------------------------------
>
> Key: HDFS-2906
> URL: https://issues.apache.org/jira/browse/HDFS-2906
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.23.0
> Reporter: Brahma Reddy Battula
> Assignee: Uma Maheswara Rao G
>
> Scenario:
> 1) Start the cluster with one NN and two DN's.
> 2) Keep restart one DN for every 10mins.
> 3) Let's keep the clients to write the data continuosly.
> Observed below trace.
> {noformat}
> 2012-02-07 01:03:45,897 ERROR
> org.apache.hadoop.hdfs.server.datanode.DataNode:
> HOST-10-18-40-23:50010:DataXceiver error processing WRITE_BLOCK operation
> src: /10.18.40.20:23862 dest: /10.18.40.23:50010
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:151)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:340)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
> at
> org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:167)
> at java.lang.Thread.run(Thread.java:619)
> 2012-02-07 01:03:46,083 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Locking is disabled
> {noformat}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
