[YARN-485] TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.2-alpha
• Fix Version/s: 2.1.0-beta
• Target Version/s: 2.1.0-beta
• Assignee: Karthik Kambatla
• Reporter: Karthik Kambatla
• Created: 13/Feb/13 22:30
• Updated: 03/Nov/14 18:33
• Resolved: 18/Mar/13 19:44

Description

TestProcfsProcessTree#testProcessTree fails occasionally with the following stack trace

Stack Trace:
junit.framework.AssertionFailedError: expected:<false> but was:<true>
        at org.apache.hadoop.util.TestProcfsBasedProcessTree.testProcessTree(TestProcfsBasedProcessTree.java)

kill -9 is executed asynchronously, the signal is delivered when the process comes out of the kernel (sys call). Checking if the process died immediately after can fail at times.