[HDFS-1401] TestFileConcurrentReader test case is still timing out / failing

• Type: Sub-task
• Status: Resolved
• Priority: Critical
• Resolution: Cannot Reproduce
• Affects Version/s: 0.22.0
• Component/s: hdfs-client
• Assignee: Unassigned
• Reporter: Tanping Wang
• Created: 14/Sep/10 22:04
• Updated: 01/Jun/11 21:23
• Resolved: 01/Jun/11 21:23

Description

The unit test case, TestFileConcurrentReader after its most recent fix in HDFS-1310 still times out when using java 1.6.0_07. When using java 1.6.0_07, the test case simply hangs. On apache Hudson build ( which possibly is using a higher sub-version of java) this test case has presented an inconsistent test result that it sometimes passes, some times fails. For example, between the most recent build 423, 424 and build 425, there is no effective change, however, the test case failed on build 424 and passed on build 425

build 424 test failed
https://hudson.apache.org/hudson/job/Hadoop-Hdfs-trunk/424/testReport/org.apache.hadoop.hdfs/TestFileConcurrentReader/

build 425 test passed
https://hudson.apache.org/hudson/job/Hadoop-Hdfs-trunk/425/testReport/org.apache.hadoop.hdfs/TestFileConcurrentReader/

Issue Links

• is duplicated by: HDFS-1679 TestFileConcurrentReader fails intermittently
• is duplicated by: HDFS-1885 Recurring failures in TestFileConcurrentReader for > 12 days
• relates to: HDFS-1057 Concurrent readers hit ChecksumExceptions if following a writer to very end of file
• relates to: HDFS-1310 TestFileConcurrentReader fails