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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-107) Namenode errors "Failed to complete filename.crc because dir.getFile()==null and null"
Date Thu, 30 Mar 2006 22:40:30 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-107?page=all ]
     
Doug Cutting resolved HADOOP-107:
---------------------------------

    Fix Version: 0.1
     Resolution: Fixed
      Assign To: Doug Cutting

I just committed a fix for this.

> Namenode errors "Failed to complete filename.crc  because dir.getFile()==null and null"
> ---------------------------------------------------------------------------------------
>
>          Key: HADOOP-107
>          URL: http://issues.apache.org/jira/browse/HADOOP-107
>      Project: Hadoop
>         Type: Bug
>   Components: dfs
>  Environment: Linux
>     Reporter: Igor Bolotin
>     Assignee: Doug Cutting
>      Fix For: 0.1
>  Attachments: writeLocal.patch
>
> We're getting lot of these errors and here is what I see in namenode log: 
> 060327 002016 Removing lease [Lease.  Holder: DFSClient_1897466025, heldlocks: 0, pendingcreates:
0], leases remaining: 1
> 060327 002523 Block report from member2.local:50010: 91895 blocks.
> 060327 003238 Block report from member1.local:50010: 91895 blocks.
> 060327 005830 Failed to complete /feedback/.feedback_10.1.10.102-33877.log.crc  because
dir.getFile()==null and null
> 060327 005830 Server handler 1 on 50000 call error: java.io.IOException: Could not complete
write to file /feedback/.feedback_10.1.10.102-33877.log.crc by DFSClient_1897466025
> java.io.IOException: Could not complete write to file /feedback/.feedback_10.1.10.102-33877.log.crc
by DFSClient_1897466025
>         at org.apache.hadoop.dfs.NameNode.complete(NameNode.java:205)
>         at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:237)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:216)
> I can't be 100% sure, but it looks like these errors happen with checksum files for very
small data files. 

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