Eli Collins created HDFS-3682:
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Summary: MiniDFSCluster#init should provide more info when it fails
Key: HDFS-3682
URL: https://issues.apache.org/jira/browse/HDFS-3682
Project: Hadoop HDFS
Issue Type: Improvement
Components: test
Affects Versions: 2.0.0-alpha
Reporter: Eli Collins
Priority: Minor
I've seen the occasional test failure due to the MiniDFSCluster init failing
due to "java.io.IOException: Cannot remove data directory" for the
target/test/data/dfs/data directory. We should improve the error handling here
so we can better understand the failure, eg perhaps one of the tests that
chmods a directory fails and causes this failure.
{noformat}
org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:596)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:297)
at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:116)
at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:279)
at
org.apache.hadoop.hdfs.security.TestDelegationToken.setUp(TestDelegationToken.java:77
{noformat}
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