Cannot obtain block errors
--------------------------
Key: HADOOP-258
URL: http://issues.apache.org/jira/browse/HADOOP-258
Project: Hadoop
Type: Bug
Components: dfs
Versions: 0.3
Reporter: Owen O'Malley
Assigned to: Sameer Paranjpye
I've been seeing a lot of errors from dfs for the last couple days. The
exception that I see is:
java.io.IOException: Could not obtain block: blk_2867431916903738534
file=/user/oom/big-rand/part000271 offset=0 at
org.apache.hadoop.dfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:532)
at org.apache.hadoop.dfs.DFSClient$DFSInputStream.read(DFSClient.java:641) at
org.apache.hadoop.fs.FSDataInputStream$Checker.read(FSDataInputStream.java:83)
at
org.apache.hadoop.fs.FSDataInputStream$PositionCache.read(FSDataInputStream.java:158)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) at
java.io.BufferedInputStream.read1(BufferedInputStream.java:256) at
java.io.BufferedInputStream.read(BufferedInputStream.java:313) at
java.io.DataInputStream.readFully(DataInputStream.java:176) at
java.io.DataInputStream.readFully(DataInputStream.java:152) at
org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:264) at
org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:248) at
org.apache.hadoop.io.SequenceFile$Reader.(SequenceFile.java:238) at
org.apache.hadoop.mapred.SequenceFileRecordReader.(SequenceFileRecordReader.java:36)
at
org.apache.hadoop.mapred.SequenceFileInputFormat.getRecordReader(SequenceFileInputFormat.java:53)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:105) at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:866)
I haven't had my fingers in that code recently, does it ring any bells for
anyone?
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