Esteban Gutierrez created HBASE-13266:
-----------------------------------------

             Summary: test-patch.sh can return false positives for zombie tests 
from tests running on the same host
                 Key: HBASE-13266
                 URL: https://issues.apache.org/jira/browse/HBASE-13266
             Project: HBase
          Issue Type: Bug
            Reporter: Esteban Gutierrez


Just saw this here 
https://builds.apache.org/job/PreCommit-HBASE-Build/13271//consoleFull

{code}
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:27 h
[INFO] Finished at: 2015-03-16T23:58:30+00:00
[INFO] Final Memory: 93M/844M
[INFO] ------------------------------------------------------------------------
Suspicious java process found - waiting 30s to see if there are just slow to 
stop
There are 1 zombie tests, they should have been killed by surefire but survived
************ BEGIN zombies jstack extract
2015-03-16 23:59:03
Full thread dump Java HotSpot(TM) Server VM (23.25-b01 mixed mode):

"Attach Listener" daemon prio=10 tid=0xaa400800 nid=0x17cc waiting on condition 
[0x00000000]
   java.lang.Thread.State: RUNNABLE

"IPC Client (47) connection to 0.0.0.0/0.0.0.0:4324 from jenkins" daemon 
prio=10 tid=0xa8d03400 nid=0x1759 in Object.wait() [0xa9c7d000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0xde1987c8> (a org.apache.hama.ipc.Client$Connection)
        at org.apache.hama.ipc.Client$Connection.waitForWork(Client.java:533)
        - locked <0xde1987c8> (a org.apache.hama.ipc.Client$Connection)
        at org.apache.hama.ipc.Client$Connection.run(Client.java:577)
...
   java.lang.Thread.State: TIMED_WAITING (sleeping)
        at java.lang.Thread.sleep(Native Method)
        at 
org.apache.hama.bsp.TestBSPTaskFaults.tearDown(TestBSPTaskFaults.java:618)
        at junit.framework.TestCase.runBare(TestCase.java:140)
        at junit.framework.TestResult$1.protect(TestResult.java:110)
        at junit.framework.TestResult.runProtected(TestResult.java:128)
        at junit.framework.TestResult.run(TestResult.java:113)
        at junit.framework.TestCase.run(TestCase.java:124)
        at junit.framework.TestSuite.runTest(TestSuite.java:232)
        at junit.framework.TestSuite.run(TestSuite.java:227)
{code}

Which is getting a jstack from a test from Hama:




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