[HDFS-8596] TestDistributedFileSystem et al tests are broken in branch-2 due to incorrect setting of "datanode" attribute

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Yongjun Zhang
• Reporter: Yongjun Zhang
• Created: 14/Jun/15 06:45
• Updated: 05/Jan/17 22:43
• Resolved: 14/Jun/15 19:14

Description

After HDFS-8572, some tests failed in branch-2 as below:

Running org.apache.hadoop.hdfs.TestDistributedFileSystem
Tests run: 17, Failures: 0, Errors: 3, Skipped: 0, Time elapsed: 44.302 sec <<< FAILURE! - in org.apache.hadoop.hdfs.TestDistributedFileSystem
testAllWithDualPort(org.apache.hadoop.hdfs.TestDistributedFileSystem)  Time elapsed: 7.985 sec  <<< ERROR!
java.io.IOException: Server returned HTTP response code: 500 for URL: http://127.0.0.1:43950/getFileChecksum/filechecksum/foo0?ugi=yzhangx&nnaddr=localhost:57316
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1625)
        at org.apache.hadoop.hdfs.web.HftpFileSystem$ChecksumParser.getFileChecksum(HftpFileSystem.java:528)
        at org.apache.hadoop.hdfs.web.HftpFileSystem$ChecksumParser.access$200(HftpFileSystem.java:504)
        at org.apache.hadoop.hdfs.web.HftpFileSystem.getFileChecksum(HftpFileSystem.java:545)
        at org.apache.hadoop.hdfs.TestDistributedFileSystem.testFileChecksum(TestDistributedFileSystem.java:592)
        at org.apache.hadoop.hdfs.TestDistributedFileSystem.testAllWithDualPort(TestDistributedFileSystem.java:683)

I found that the cause is the wrong setting of "datanode" attribute in ServletContext introduced by this change.

Issue Links

• is broken by: HDFS-8572 DN always uses HTTP/localhost@REALM principals in SPNEGO