Hi,

Based on the JIRA, it looks like >= 0.21. †So 0.21, 0.22, 0.23, 2.0, or CDH4.

Brock

On Fri, Aug 3, 2012 at 12:11 PM, Yongcheng Li <Yongcheng.Li@sas.com> wrote:

The version of Hadoop I am using is 1.0.1. Which version of Hadoop does Flume need in order for† this to work?

Thanks!

Yongcheng

From: Brock Noland [mailto:brock@cloudera.com]
Sent: Friday, August 03, 2012 11:53 AM
To: user@flume.apache.org
Subject: Re: FLUME-1163: HDFSEventSink leaves .tmp files in place when Flume is stopped

What version of Hadoop are you using? †It looks like the flag used to make this work†fs.automatic.close is not in 0.20/1.0 versions. It is in CDH3 but the call to closeAll() in the finalizer sets a boolean flag which disables this.

It does look to be in Hadoop trunk/CDH4.

On Fri, Aug 3, 2012 at 9:16 AM, Yongcheng Li <Yongcheng.Li@sas.com> wrote:

FLUME-1163 (https://issues.apache.org/jira/browse/FLUME-1163) states that this problem has been fixed in Flume 1.2.0. However, my tests indicate that the fix works sometimes, but does not work most of the time (i.e. it didnít rename the .tmp file). The exceptions occurred when it did not work are shown below. It seems that the Filesystem has been closed when it tries to close and rename the .tmp file.

2012-08-02 16:09:16,844 WARN hdfs.BucketWriter: failed to close() HDFSWriter for file (hdfs://xxx.yyy.com/user/yongli/flume/2012/08_02_16.events.1343938150590.tmp). Exception follows.

java.io.IOException: DFSOutputStream is closed

††††††† at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.sync(DFSClient.java:3666)

††††††† at org.apache.hadoop.fs.FSDataOutputStream.sync(FSDataOutputStream.java:97)

††††††† at org.apache.flume.sink.hdfs.HDFSDataStream.close(HDFSDataStream.java:103)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.doClose(BucketWriter.java:256)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.access$400(BucketWriter.java:50)

††††††† at org.apache.flume.sink.hdfs.BucketWriter$3.run(BucketWriter.java:242)

††††††† at org.apache.flume.sink.hdfs.BucketWriter$3.run(BucketWriter.java:239)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:127)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.close(BucketWriter.java:239)

††††††† at org.apache.flume.sink.hdfs.HDFSEventSink$3.call(HDFSEventSink.java:796)

††††††† at org.apache.flume.sink.hdfs.HDFSEventSink$3.call(HDFSEventSink.java:793)

††††††† at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

††††††† at java.util.concurrent.FutureTask.run(FutureTask.java:138)

††††††† at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

††††††† at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

††††††† at java.lang.Thread.run(Thread.java:619)

2012-08-02 16:09:16,853 INFO hdfs.BucketWriter: Renaming hdfs:// xxx.yyy.com /user/yongli/flume/2012/08_02_16.events.1343938150590.tmp to hdfs://xxx.yyy.com/user/yongli/flume /2012/08_02_16.events.1343938150590

2012-08-02 16:09:16,853 WARN hdfs.HDFSEventSink: Exception while closing hdfs:// xxx.yyy.com /user/yongli/flume /2012/08_02_16.events. Exception follows.

java.io.IOException: Filesystem closed

††††††† at org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:264)

††††††† at org.apache.hadoop.hdfs.DFSClient.rename(DFSClient.java:800)

††††††† at org.apache.hadoop.hdfs.DistributedFileSystem.rename(DistributedFileSystem.java:216)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.renameBucket(BucketWriter.java:377)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.doClose(BucketWriter.java:275)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.access$400(BucketWriter.java:50)

††††††† at org.apache.flume.sink.hdfs.BucketWriter$3.run(BucketWriter.java:242)

††††††† at org.apache.flume.sink.hdfs.BucketWriter$3.run(BucketWriter.java:239)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:127)

††††††† at org.apache.flume.sink.hdfs.BucketWriter.close(BucketWriter.java:239)

††††††† at org.apache.flume.sink.hdfs.HDFSEventSink$3.call(HDFSEventSink.java:796)

††††††† at org.apache.flume.sink.hdfs.HDFSEventSink$3.call(HDFSEventSink.java:793)

††††††† at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)

††††††† at java.util.concurrent.FutureTask.run(FutureTask.java:138)

††††††† at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

††††††† at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

††††††† at java.lang.Thread.run(Thread.java:619)

2012-08-02 16:09:16,856 INFO instrumentation.MonitoredCounterGroup: Component type: SINK, name: hdfs-sink stopped



--
Apache MRUnit - Unit testing MapReduce - http://incubator.apache.org/mrunit/




--
Apache MRUnit - Unit testing MapReduce - http://incubator.apache.org/mrunit/