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https://issues.apache.org/jira/browse/HDFS-14086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16766459#comment-16766459
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Sahil Takiar commented on HDFS-14086:
-------------------------------------
The issue here is that out of the box, the {{test_libhdfs_ops.c}} runs agains
the local filesystem. However, the test was written to run against a mini DFS
cluster. Modifying the test to run against a {{NativeMiniDfsCluster}} fixes
most of the failures seen when running this file.
More details can be found in HDFS-14267. However, I suggest we close this JIRA
in favor of HDFS-14267 which fixes the issues with {{test_libhdfs_ops.c}} and
does some additional test cleanup.
> Failure in test_libhdfs_ops
> ---------------------------
>
> Key: HDFS-14086
> URL: https://issues.apache.org/jira/browse/HDFS-14086
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: native
> Affects Versions: 3.0.3
> Reporter: Pranay Singh
> Priority: Minor
> Labels: test
>
> test_libhdfs_ops hdfs_static test was not getting executed, the issue that I
> have fixed in HDFS-14083 is
> seen because this test program is not getting executed so I had to change the
> below file to
> execute this test binary as a part of normal run. There are some failures
> that are seen when this
> test program is run. This jira tracks those failures.
> Details of change to enable this test
> ------------------------------------------------
> hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfs/CMakeLists.txt
> add_libhdfs_test(test_libhdfs_ops hdfs_static) --->
> Failures that are seen when this test is run.
> ---------------------------------------------------------
> Name: file:/tmp/hsperfdata_root, Type: D, Replication: 1, BlockSize:
> 33554432, Size: 0, LastMod: Tue Nov 13 18:03:20 2018
> Owner: root, Group: root, Permissions: 493 (rwxr-xr-x)
> hdfsGetHosts - SUCCESS! ...
> hdfsChown(path=/tmp/testfile.txt, owner=(null), group=users):
> FileSystem#setOwner error:
> Shell.ExitCodeException: chown: changing group of '/tmp/testfile.txt':
> Operation not permitted
> ExitCodeException exitCode=1: chown: changing group of '/tmp/testfile.txt':
> Operation not permitted
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:1008)
> at org.apache.hadoop.util.Shell.run(Shell.java:901)
> at
> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:1213)
> at org.apache.hadoop.util.Shell.execCommand(Shell.java:1307)
> at org.apache.hadoop.util.Shell.execCommand(Shell.java:1289)
> at org.apache.hadoop.fs.FileUtil.execCommand(FileUtil.java:1350)
> at org.apache.hadoop.fs.FileUtil.setOwner(FileUtil.java:1152)
> at
> org.apache.hadoop.fs.RawLocalFileSystem.setOwner(RawLocalFileSystem.java:851)
> at
> org.apache.hadoop.fs.ChecksumFileSystem$2.apply(ChecksumFileSystem.java:520)
> at
> org.apache.hadoop.fs.ChecksumFileSystem$FsOperation.run(ChecksumFileSystem.java:489)
> at
> org.apache.hadoop.fs.ChecksumFileSystem.setOwner(ChecksumFileSystem.java:523)
> hdfsChown: Failed!
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