Xi Fang created HADOOP-9739:
-------------------------------
Summary: Branch-1-Win TestNNThroughputBenchmark failed
Key: HADOOP-9739
URL: https://issues.apache.org/jira/browse/HADOOP-9739
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 1-win
Reporter: Xi Fang
Assignee: Xi Fang
Priority: Minor
Fix For: 1-win
This test failed on both Windows and Linux.
Here is the error information.
Testcase: testNNThroughput took 36.221 sec
Caused an ERROR
NNThroughputBenchmark: cannot mkdir
D:\condor\condor\build\test\dfs\hosts\exclude
java.io.IOException: NNThroughputBenchmark: cannot mkdir
D:\condor\condor\build\test\dfs\hosts\exclude
at
org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark.<init>(NNThroughputBenchmark.java:111)
at
org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark.runBenchmark(NNThroughputBenchmark.java:1168)
at
org.apache.hadoop.hdfs.server.namenode.TestNNThroughputBenchmark.testNNThroughput(TestNNThroughputBenchmark.java:38)
This test may not fail for the first run, but will fail for the second one.
The root cause is in the constructor of NNThroughputBenchmark
{code}
NNThroughputBenchmark(Configuration conf) throws IOException, LoginException {
...
config.set("dfs.hosts.exclude", "${hadoop.tmp.dir}/dfs/hosts/exclude");
File excludeFile = new File(config.get("dfs.hosts.exclude", "exclude"));
if(! excludeFile.exists()) {
if(!excludeFile.getParentFile().mkdirs())
throw new IOException("NNThroughputBenchmark: cannot mkdir " +
excludeFile);
}
new FileOutputStream(excludeFile).close();
{code}
excludeFile.getParentFile() may already exist, then
excludeFile.getParentFile().mkdirs() will return false, which however is not an
expected behavior.
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