Deadlock in DFCClient
---------------------
Key: HADOOP-3197
URL: https://issues.apache.org/jira/browse/HADOOP-3197
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.16.1
Reporter: André Martin
The DFS Client hangs - attached the thread dump - looks like a dead lock to
me...
{noformat}
"ResponseProcessor for block blk_-7822837545361798562" prio=10
tid=0x00002aab993dcc00 nid=0x5241 waiting for monitor entry
[0x000000004365e000..0x000000004365ecc0]
java.lang.Thread.State: BLOCKED (on object monitor)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream$ResponseProcessor.run(DFSClient.java:1771)
- waiting to lock <0x00002aaaecf2dd08> (a java.util.LinkedList)
"DataStreamer for file
/seDNS/mapred-out/18A59C65A91D44E5BA24785DF103D1781BB0137E.cache.new block
blk_-7822837545361798562" prio=10 tid=0x00002aab96a46000 nid=0x523f runnable
[0x000000004345c000..0x000000004345cc40]
java.lang.Thread.State: RUNNABLE
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.write(Unknown Source)
- locked <0x00002aaaecf2ec50> (a java.io.BufferedOutputStream)
at java.io.DataOutputStream.write(Unknown Source)
- locked <0x00002aaaecf2ec20> (a java.io.DataOutputStream)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:1623)
- locked <0x00002aaaecf2dd08> (a java.util.LinkedList)
"BackupJobQueuesThread" prio=10 tid=0x00002aab94b94000 nid=0x7cb2 waiting for
monitor entry [0x000000004244c000..0x000000004244cd40]
java.lang.Thread.State: BLOCKED (on object monitor)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.writeChunk(DFSClient.java:2117)
- waiting to lock <0x00002aaaecf2dd08> (a java.util.LinkedList)
at
org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunk(FSOutputSummer.java:141)
at
org.apache.hadoop.fs.FSOutputSummer.flushBuffer(FSOutputSummer.java:124)
- locked <0x00002aaaecf2e670> (a
org.apache.hadoop.dfs.DFSClient$DFSOutputStream)
at org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:58)
- locked <0x00002aaaecf2e670> (a
org.apache.hadoop.dfs.DFSClient$DFSOutputStream)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:36)
at java.io.DataOutputStream.writeBytes(Unknown Source)
at
sedns.serializer.file.FileSerializerServer.serializeJobQueuesAndCache(FileSerializerServer.java:723)
- locked <0x00002aaab430fec8> (a java.util.Collections$SynchronizedSet)
at
sedns.pastry.application.ServerApp$BackupJobListThread.run(ServerApp.java:476)
"[EMAIL PROTECTED]" daemon prio=10 tid=0x00002aab94bc7c00 nid=0x7ca7 waiting on
condition [0x0000000041941000..0x0000000041941bc0]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.hadoop.dfs.DFSClient$LeaseChecker.run(DFSClient.java:597)
at java.lang.Thread.run(Unknown Source)
{noformat}
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
