transient AnnouncerTest.testSanity() failure

[himanshug]

https://travis-ci.org/druid-io/druid/jobs/101730020

testSanity(io.druid.curator.announcement.AnnouncerTest)  Time elapsed: 61.019 sec  <<< ERROR!

java.lang.Exception: test timed out after 60000 milliseconds

    at sun.misc.Unsafe.park(Native Method)

    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)

    at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1037)

    at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1328)

    at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:277)

    at org.apache.curator.test.Timing.awaitLatch(Timing.java:120)

    at io.druid.curator.announcement.AnnouncerTest.testSanity(AnnouncerTest.java:101)

[drcrallen]

I'm hitting this a lot today.

[drcrallen]

I'll start linking failed runs here

[drcrallen]

https://travis-ci.org/druid-io/druid/jobs/111798131

[gianm]

https://travis-ci.org/druid-io/druid/builds/115210472

[gianm]

https://travis-ci.org/druid-io/druid/jobs/119699509

[gianm]

https://travis-ci.org/druid-io/druid/builds/135057242

[gianm]

https://travis-ci.org/druid-io/druid/jobs/144765914

[leventov]

This transient failure hits very often recently

[gianm]

I tried some things in #4866 but they didn't seem to work. I did discover one additional clue though, see #4866 (comment). It wasn't enough for me to get to the bottom of it but it is some more information.

[jihoonson]

I'm working on this.