[ https://issues.apache.org/jira/browse/HADOOP-1118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang resolved HADOOP-1118. ----------------------------------- Resolution: Fixed no longer a problem since the crc patch was in. > NullPointerException in > DistributedFileSystem$RawDistributedFileSystem.reportChecksumFailure > -------------------------------------------------------------------------------------------- > > Key: HADOOP-1118 > URL: https://issues.apache.org/jira/browse/HADOOP-1118 > Project: Hadoop > Issue Type: Bug > Components: dfs > Affects Versions: 0.12.0 > Reporter: Nigel Daley > Assignee: Hairong Kuang > Attachments: NPEChecksum.patch, NPEChecksum.patch, NPEChecksum1.patch > > > I saw one NullPointerException in the JT log during a large sort run: > 2007-03-14 08:36:10,210 INFO org.apache.hadoop.mapred.TaskInProgress: Error > from task_0002_m_037315_1: java.lang.NullPointerException > at > org.apache.hadoop.dfs.DistributedFileSystem$RawDistributedFileSystem.reportChecksumFailure(DistributedFileSystem.java:326) > at > org.apache.hadoop.dfs.DistributedFileSystem.reportChecksumFailure(DistributedFileSystem.java:405) > at > org.apache.hadoop.fs.ChecksumFileSystem$FSInputChecker.verifySum(ChecksumFileSystem.java:253) > at > org.apache.hadoop.fs.ChecksumFileSystem$FSInputChecker.readBuffer(ChecksumFileSystem.java:211) > at > org.apache.hadoop.fs.ChecksumFileSystem$FSInputChecker.read(ChecksumFileSystem.java:167) > at > org.apache.hadoop.fs.FSDataInputStream$PositionCache.read(FSDataInputStream.java:41) > at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > at java.io.BufferedInputStream.read1(BufferedInputStream.java:258) > at java.io.BufferedInputStream.read(BufferedInputStream.java:317) > at java.io.DataInputStream.readFully(DataInputStream.java:178) > at java.io.DataInputStream.readFully(DataInputStream.java:152) > at > org.apache.hadoop.io.SequenceFile$Reader.sync(SequenceFile.java:1712) > at > org.apache.hadoop.mapred.SequenceFileRecordReader.<init>(SequenceFileRecordReader.java:45) > at > org.apache.hadoop.mapred.SequenceFileInputFormat.getRecordReader(SequenceFileInputFormat.java:55) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:139) > at > org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1445) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.