Denis Magda created IGNITE-1977:
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Summary: IgniteSemaphore's failover related tests got to the deadlock
Key: IGNITE-1977
URL:
https://issues.apache.org/jira/browse/IGNITE-1977 Project: Ignite
Issue Type: Bug
Reporter: Denis Magda
All {{IgniteSemaphore}} related tests from {{GridCacheAbstractDataStructuresFailoverSelfTest}} may cause a deadlock which leads to the whole suite hanging.
The threads are waiting for the following condition:
{noformat}
"topology-change-thread-3" prio=6 tid=0x000000001d98d800 nid=0x2b20 waiting on condition [0x000000002066f000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x0000000798149948> (a org.apache.ignite.internal.processors.datastructures.GridCacheSemaphoreImpl$Sync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:994)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1303)
at org.apache.ignite.internal.processors.datastructures.GridCacheSemaphoreImpl.acquire(GridCacheSemaphoreImpl.java:538)
at org.apache.ignite.internal.processors.datastructures.GridCacheSemaphoreImpl.acquire(GridCacheSemaphoreImpl.java:525)
at org.apache.ignite.internal.processors.cache.datastructures.GridCacheAbstractDataStructuresFailoverSelfTest$7.apply(GridCacheAbstractDataStructuresFailoverSelfTest.java:571)
at org.apache.ignite.internal.util.lang.GridAbsClosure.run(GridAbsClosure.java:50)
at org.apache.ignite.testframework.GridTestUtils$7.call(GridTestUtils.java:967)
at org.apache.ignite.testframework.GridTestThread.run(GridTestThread.java:86)
{noformat}
Probably the semaphore is not properly released when a node leaves the topology abruptly.
In addition the tests should be rewritten to the way which is followed by other data structures and atomics from this suite: using {{ConstantTopologyChangeWorker}} and its descendants.
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