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From "Gaurav Aggarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-11657) Deadlock on Cache.putAll(Map<KV>)
Date Tue, 23 Apr 2019 11:23:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-11657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gaurav Aggarwal updated IGNITE-11657:
-------------------------------------
    Summary: Deadlock on Cache.putAll(Map<KV>)  (was: Stripe Threads Deadlock on Cache.putAll(Map<KV>))

> Deadlock on Cache.putAll(Map<KV>)
> ---------------------------------
>
>                 Key: IGNITE-11657
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11657
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 2.5
>            Reporter: Gaurav Aggarwal
>            Priority: Major
>
> We have been seeing some consistent Deadlocks with Ignite Latest versions, as putAll
tries to lock all the keys before updating them. 
>  
> As per the documentation (below) putAll should be Equivalent to individual iterative
puts and these individual puts should behave atomically but not the entire pull, But the error
logs pasted further below seem to suggest otherwise
>  
> *putAll Documentation*
> h5. void javax.cache.Cache.putAll(Map<? extends K, ? extends V> map)
> Copies all of the entries from the specified map to the {{Cache}}.
> The effect of this call is equivalent to that of calling {{put(k, v)}} on this cache
once for each mapping from key {{k}} to value {{v}} in the specified map.
> The order in which the individual puts occur is undefined.
> The behavior of this operation is undefined if entries in the cache corresponding to
entries in the map are modified or removed while this operation is in progress. or if map
is modified while the operation is in progress.
> In Default Consistency mode, individual puts occur atomically but not the entire putAll.
Listeners may observe individual updates.
>  
>  
> *Error Log suggesting otherwise*
>  
> Deadlock: true
> Completed: 12808
> Thread [name="sys-stripe-3-#4%VPS%", id=27, state=WAITING, blockCnt=3, waitCnt=121340]
>   Lock [object=java.util.concurrent.locks.ReentrantLock$NonfairSync@138205af, ownerName=sys-stripe-26-#27%VPS%,
ownerId=50]
>   at sun.misc.Unsafe.park(Native Method)
>   at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
>   at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
>   at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
>   at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
>   at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
>    at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
>   at o.a.i.i.processors.cache.GridCacheMapEntry.lockEntry(GridCacheMapEntry.java:4272)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.lockEntries(GridDhtAtomicCache.java:2848)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal0(GridDhtAtomicCache.java:1706)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal(GridDhtAtomicCache.java:1628)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.processNearAtomicUpdateRequest(GridDhtAtomicCache.java:3056)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.access$400(GridDhtAtomicCache.java:130)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache$5.apply(GridDhtAtomicCache.java:266)
>   at o.a.i.i.processors.cache.distributed.dht.atomic.GridDhtAtomicCache$5.apply(GridDhtAtomicCache.java:261)
>   at o.a.i.i.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1054)
>   at o.a.i.i.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:579)
>   at o.a.i.i.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:378)
>   at o.a.i.i.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:304)
>   at o.a.i.i.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:99)
>   at o.a.i.i.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:293)
>   at o.a.i.i.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1556)
>   at o.a.i.i.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1184)
>   at o.a.i.i.managers.communication.GridIoManager.access$4200(GridIoManager.java:125)
>   at o.a.i.i.managers.communication.GridIoManager$9.run(GridIoManager.java:1091)
>   at o.a.i.i.util.StripedExecutor$Stripe.run(StripedExecutor.java:511)
>   at java.lang.Thread.run(Thread.java:748)
>  
> I have tried sorting my keys but the same doesn't helps
>  



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