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Posted to dev@ignite.apache.org by "Pavel Kovalenko (JIRA)" <ji...@apache.org> on 2018/11/16 14:35:00 UTC

[jira] [Created] (IGNITE-10298) Possible deadlock between restore partition states and checkpoint begin

Pavel Kovalenko created IGNITE-10298:
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             Summary: Possible deadlock between restore partition states and checkpoint begin
                 Key: IGNITE-10298
                 URL: https://issues.apache.org/jira/browse/IGNITE-10298
             Project: Ignite
          Issue Type: Bug
          Components: cache
    Affects Versions: 2.4
            Reporter: Pavel Kovalenko
             Fix For: 2.8


There is possible deadlock between "restorePartitionStates" phase during caches starting and currently running checkpointer:

{noformat}
"db-checkpoint-thread-#50" #89 prio=5 os_prio=0 tid=0x000000001ad57800 nid=0x2b58 waiting on condition [0x000000007e42e000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x00000000ddabfcc8> (a java.util.concurrent.CountDownLatch$Sync)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304)
	at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:231)
	at org.apache.ignite.internal.util.IgniteUtils.await(IgniteUtils.java:7515)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$GridCacheDataStore.init0(GridCacheOffheapManager.java:1331)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$GridCacheDataStore.fullSize(GridCacheOffheapManager.java:1459)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.markCheckpointBegin(GridCacheDatabaseSharedManager.java:3397)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.doCheckpoint(GridCacheDatabaseSharedManager.java:3009)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.body(GridCacheDatabaseSharedManager.java:2934)
	at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
	at java.lang.Thread.run(Thread.java:748)

"exchange-worker-#42" #69 prio=5 os_prio=0 tid=0x000000001c1cd800 nid=0x259c waiting on condition [0x00000000249ae000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x0000000080b634a0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
	at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.checkpointReadLock(GridCacheDatabaseSharedManager.java:1328)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$GridCacheDataStore.init0(GridCacheOffheapManager.java:1212)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$GridCacheDataStore.initialUpdateCounter(GridCacheOffheapManager.java:1537)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager.onPartitionInitialCounterUpdated(GridCacheOffheapManager.java:633)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.restorePartitionStates(GridCacheDatabaseSharedManager.java:2365)
	at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.beforeExchange(GridCacheDatabaseSharedManager.java:1174)
	at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.distributedExchange(GridDhtPartitionsExchangeFuture.java:1119)
	at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.java:703)
	at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:2364)
	at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
	at java.lang.Thread.run(Thread.java:748)
{noformat}


Possible solution is performing restorePartitionStates for each group under whole checkpoint readlock to prevent race between creating partition data store and checkpointer mark begin phase.



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