Close the FileSystem object (fs).
On Mon, Jun 16, 2014 at 6:22 PM, Wei Zhang <[email protected]> wrote: > Hello Ted, > > Thank you very much for the reply! I have created a github gist that > records the error message at > https://gist.github.com/anonymous/21a2f36c995c1d39717b > > I am sorry that I forgot to attach the error log, it is something that > looks like this (just in case that github gist is displaying incorrectly): > Jun 16, 2014 6:07:10 PM > com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks > WARNING: Will linger awaiting termination of 2 leaked thread(s). > Jun 16, 2014 6:07:30 PM > com.carrotsearch.randomizedtesting.ThreadLeakControl checkThreadLeaks > SEVERE: 1 thread leaked from SUITE scope at > org.apache.mahout.wei.inc.util.HDFSUtilTest: > 1) Thread[id=15, name=org.apache.hadoop.hdfs.LeaseRenewer$1@7b968017, > state=TIMED_WAITING, group=TGRP-HDFSUtilTest] > at java.lang.Thread.sleep(*Native Method*) > at org.apache.hadoop.hdfs.LeaseRenewer.run(*LeaseRenewer.java:397* > ) > at org.apache.hadoop.hdfs.LeaseRenewer.access$600( > *LeaseRenewer.java:69*) > at org.apache.hadoop.hdfs.LeaseRenewer$1.run( > *LeaseRenewer.java:273*) > at java.lang.Thread.run(Unknown Source) > Jun 16, 2014 6:07:30 PM > com.carrotsearch.randomizedtesting.ThreadLeakControl tryToInterruptAll > INFO: Starting to interrupt leaked threads: > 1) Thread[id=15, name=org.apache.hadoop.hdfs.LeaseRenewer$1@7b968017, > state=TIMED_WAITING, group=TGRP-HDFSUtilTest] > Jun 16, 2014 6:07:30 PM > com.carrotsearch.randomizedtesting.ThreadLeakControl tryToInterruptAll > INFO: All leaked threads terminated. > > Thanks! > > Wei > > > [image: Inactive hide details for Ted Dunning ---06/16/2014 07:50:30 > PM---Attachments are stripped by the mailing list. Can you throw]Ted > Dunning ---06/16/2014 07:50:30 PM---Attachments are stripped by the mailing > list. Can you throw the stack trace onto a github gist or s > > From: Ted Dunning <[email protected]> > To: "[email protected]" <[email protected]>, > Date: 06/16/2014 07:50 PM > Subject: Re: a seemingly benign test that fails MahoutTestCase > ------------------------------ > > > > Attachments are stripped by the mailing list. Can you throw the stack > trace onto a github gist or something? > > > On Mon, Jun 16, 2014 at 3:27 PM, Wei Zhang <[email protected]> wrote: > > > > > > > Hello, > > > > I am wrting a simple Unit test, which extends MahoutTestCase. I am using > > Mahout 0.9 and Hadoop 1.0.3. > > > > The test is quite simple, it just creates an empty file on HDFS. The > entire > > coding is the following: > > > > @Test > > public void simpleTest() throws IOException{ > > Configuration conf = new Configuration(); > > FileSystem fs = FileSystem.get(conf); > > Path filenamePath = new Path("/tmp/tmp.txt"); > > FSDataOutputStream out = fs.create(filenamePath); > > out.close(); > > } > > > > However, this will fail the MahoutTestCase. In particular, the moment I > > added the line 4 (FSDataOutputStream out = fs.create(filenamePath);), > this > > test would fail. > > I am wondering can anyone give me some pointers regarding why this naive > > program would fail ? > > The error log is attached below. > > > > Thank you very much ! > > > > Wei > >
