Jonathan Hung created HADOOP-15711:
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Summary: Fix branch-2 builds
Key: HADOOP-15711
URL: https://issues.apache.org/jira/browse/HADOOP-15711
Project: Hadoop Common
Issue Type: Task
Reporter: Jonathan Hung
Branch-2 builds have been disabled for a while:
https://builds.apache.org/view/H-L/view/Hadoop/job/hadoop-qbt-branch2-java7-linux-x86/
A test run here causes hdfs tests to hang:
https://builds.apache.org/view/H-L/view/Hadoop/job/hadoop-qbt-branch2-java7-linux-x86-jhung/4/
Running hadoop-hdfs tests locally reveal some errors such as:{noformat}[ERROR]
testComplexAppend2(org.apache.hadoop.hdfs.TestFileAppend2) Time elapsed: 0.059
s <<< ERROR!
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:714)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.saveFSImageInAllDirs(FSImage.java:1164)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.saveFSImageInAllDirs(FSImage.java:1128)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:174)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1172)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:403)
at
org.apache.hadoop.hdfs.DFSTestUtil.formatNameNode(DFSTestUtil.java:234)
at
org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:1080)
at
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:883)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:514)
at
org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:473)
at
org.apache.hadoop.hdfs.TestFileAppend2.testComplexAppend(TestFileAppend2.java:489)
at
org.apache.hadoop.hdfs.TestFileAppend2.testComplexAppend2(TestFileAppend2.java:543)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43){noformat}
I was able to get more tests passing locally by increasing the max user process
count on my machine. But the error suggests that there's an issue in the tests
themselves.
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