[HADOOP-107] Namenode errors "Failed to complete filename.crc because dir.getFile()==null and null"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1.0

Environment

Linux

• Assignee: Doug Cutting
• Reporter: Igor Bolotin
• Created: 28/Mar/06 02:04
• Updated: 08/Jul/09 16:41
• Resolved: 31/Mar/06 07:38

Description

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.