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From Andrey Davydov <andrey.davy...@gmail.com>
Subject RE: TimeoutException not wrapped in CacheException
Date Fri, 09 Aug 2019 15:38:46 GMT
Please update documentation on https://apacheignite.readme.io/docs/transactions#section-handling-failed-transactions


Andrey.

От: Andrei Aleksandrov
Отправлено: 9 августа 2019 г. в 18:35
Кому: user@ignite.apache.org
Тема: Re: TimeoutException not wrapped in CacheException

Hi,

Sorry, it's my fault.

I thought that you get TransactionTimeoutExceptionfrom from some IgniteCache method. So it's
not expected there. 

>From commit method you can't get the CacheException of course.

So I guess that you should handle only exceptions that mentioned in Java Doc.

BR,
Andrei
8/9/2019 6:21 PM, Andrey Davydov пишет:
As I see In javadocs for org.apache.ignite.transactions.Transaction 

    /**
     * Commits this transaction by initiating {@code two-phase-commit} process.
     *
     * @throws IgniteException If commit failed.
     * @throws TransactionTimeoutException If transaction is timed out.
     * @throws TransactionRollbackException If transaction is automatically rolled back.
     * @throws TransactionOptimisticException If transaction concurrency is {@link TransactionConcurrency#OPTIMISTIC}
     * and commit is optimistically failed.
     * @throws TransactionHeuristicException If transaction has entered an unknown state.
     */
    @IgniteAsyncSupported
    public void commit() throws IgniteException;
And as we see in trace, exception come from org.apache.ignite.internal.processors.cache.transactions.TransactionProxyImpl.commit
So system behaviour meets javadoc but don't meet docs and example on https://apacheignite.readme.io/docs/transactions


On Fri, Aug 9, 2019 at 6:12 PM Andrey Davydov <andrey.davydov@gmail.com> wrote:
Sorry fo misprint, test does not check that there are no any way to get  TimeoutException 

On Fri, Aug 9, 2019 at 5:55 PM Andrey Davydov <andrey.davydov@gmail.com> wrote:
It is a little bit difficult to reproduce. We got unhadled exception on pre prod performance
test of our system. I will try to reproduce it on weekend. 

You test just check that if you get CacheException then TimeoutException is inside it, but
doesn't check that there are no any way to get CacheException. As I check listened in stack
trace lines from 2.7.5 sources (loaded from maven), i dont see where TOE shoud be wrapped
to CE

If there is full list of Exceptions when it is valid to retry transaction (Optimistic or Pessimistic).
As I found in different pages of docs, now I catch (optimistic tx):
TransactionOptimisticException - try to rerun transaction
ClusterTopologyException - retryReadyFuture().get() and try to rerun transaction
CacheException check if getCause is Timeout then try to rerun or rethrow in other cases

Thanks.

On Fri, Aug 9, 2019 at 5:31 PM Andrei Aleksandrov <aealexsandrov@gmail.com> wrote:
Hi,

It looks strange because even Ignite tests expect that 
TransactionTimeoutException will be wrapped in CacheException. For 
example IgniteTxConfigCacheSelfTest:

         try (final Transaction tx = ignite.transactions().txStart()) {
             assert tx != null;

             cache.put("key0", "val0");

             sleepForTxFailure();

             cache.put("key", "val");

             fail("Timeout exception must be thrown");
         }
         catch (CacheException e) {
             assert e.getCause() instanceof TransactionTimeoutException;
         }

So could you please provide the reproducer for your issue? We will check 
it and create the JIRA for it.

BR,
Andrei

8/9/2019 5:16 PM, Andrey Davydov пишет:
> On ignite 2.7.5 I got TransactionTimeoutException not wrapped 
> in CacheException. If it is normal behaviour and I should catch 
> TransactionTimeoutException too. My current logic is to 
> catch CacheException and check CacheException.getCause() if it 
> was TransactionTimeoutException.
>
> Thanks.
>
> Full statck trace:
>
> Caused by: org.apache.ignite.transactions.TransactionTimeoutException: 
> Failed to acquire lock within provided timeout for transaction 
> [timeout=150, tx=GridDhtTxLocal 
> [nearNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> nearFutId=74752d17c61-0341ea15-fcbd-48ef-b655-299a6d885196, 
> nearMiniId=1, nearFinFutId=null, nearFinMiniId=0, 
> nearXidVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], super=GridDhtTxLocalAdapter 
> [nearOnOriginatingNode=false, nearNodes=[], 
> dhtNodes=[18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> 1144f759-6d1f-4aa3-9592-cc0b3481eb15], explicitLock=false, 
> super=IgniteTxLocalAdapter [completedBase=null, 
> sndTransformedVals=false, depEnabled=false, txState=IgniteTxStateImpl 
> [activeCacheIds=[1895344369], recovery=false, mvccEnabled=false, 
> txMap=[IgniteTxEntry [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], cacheId=1895344369, 
> txKey=IgniteTxKey [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], cacheId=1895344369], 
> val=[op=READ, val=null], prevVal=[op=NOOP, val=null], oldVal=[op=NOOP, 
> val=null], entryProcessorsCol=null, ttl=-1, conflictExpireTime=-1, 
> conflictVer=null, explicitVer=null, dhtVer=null, filters=[], 
> filtersPassed=false, filtersSet=false, entry=GridDhtCacheEntry 
> [rdrs=[], part=127, super=GridDistributedCacheEntry 
> [super=GridCacheMapEntry [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], val=null, 
> ver=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> hash=1903256846, extras=GridCacheMvccEntryExtras [mvcc=GridCacheMvcc 
> [locs=[GridCacheMvccCandidate 
> [nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, ver=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], threadId=883, 
> id=412844, topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> reentry=null, otherNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> otherVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], mappedDhtNodes=null, mappedNearNodes=null, 
> ownerVer=null, serOrder=GridCacheVersion [topVer=176751246, 
> order=1565274668396, nodeOrder=1], key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], 
> masks=local=1|owner=1|ready=1|reentry=0|used=0|tx=1|single_implicit=0|dht_local=1|near_local=0|removed=0|read=1,

> prevVer=GridCacheVersion [topVer=176751246, order=1565274668397, 
> nodeOrder=2], nextVer=null]], rmts=null]], flags=2]]], prepared=1, 
> locked=false, nodeId=null, locMapped=false, expiryPlc=null, 
> transferExpiryPlc=false, flags=0, partUpdateCntr=0, 
> serReadVer=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> xidVer=null], IgniteTxEntry [key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], cacheId=1895344369, 
> txKey=IgniteTxKey [key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], cacheId=1895344369], 
> val=[op=DELETE, val=null], prevVal=[op=NOOP, val=null], 
> oldVal=[op=NOOP, val=null], entryProcessorsCol=null, ttl=-1, 
> conflictExpireTime=-1, conflictVer=null, explicitVer=null, 
> dhtVer=null, filters=[], filtersPassed=false, filtersSet=false, 
> entry=GridDhtCacheEntry [rdrs=[], part=121, 
> super=GridDistributedCacheEntry [super=GridCacheMapEntry 
> [key=KeyCacheObjectImpl [part=121, val=cancel_queue#FIRSTA, 
> hasValBytes=true], val=null, ver=GridCacheVersion [topVer=176751246, 
> order=1565274668382, nodeOrder=2], hash=1903256840, 
> extras=GridCacheMvccEntryExtras [mvcc=GridCacheMvcc 
> [locs=[GridCacheMvccCandidate 
> [nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, ver=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], threadId=883, 
> id=412843, topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> reentry=null, otherNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> otherVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], mappedDhtNodes=null, mappedNearNodes=null, 
> ownerVer=null, serOrder=GridCacheVersion [topVer=176751246, 
> order=1565274668396, nodeOrder=1], key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], 
> masks=local=1|owner=1|ready=1|reentry=0|used=0|tx=1|single_implicit=0|dht_local=1|near_local=0|removed=0|read=0,

> prevVer=null, nextVer=GridCacheVersion [topVer=176751246, 
> order=1565274668397, nodeOrder=2]]], rmts=null]], flags=3]]], 
> prepared=1, locked=false, nodeId=null, locMapped=false, 
> expiryPlc=null, transferExpiryPlc=false, flags=0, partUpdateCntr=0, 
> serReadVer=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> xidVer=null]]], mvccWaitTxs=null, qryEnlisted=false, 
> forceSkipCompletedVers=false, super=IgniteTxAdapter 
> [xidVer=GridCacheVersion [topVer=176751246, order=1565274668397, 
> nodeOrder=2], writeVer=GridCacheVersion [topVer=176751246, 
> order=1565274668398, nodeOrder=2], implicit=false, loc=true, 
> threadId=883, startTime=1565337963940, 
> nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, startVer=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], endVer=null, 
> isolation=SERIALIZABLE, concurrency=OPTIMISTIC, timeout=150, 
> sysInvalidate=false, sys=false, plc=2, commitVer=null, 
> finalizing=NONE, invalidParts=null, state=PREPARING, timedOut=false, 
> topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> txCounters=null, duration=152ms, onePhaseCommit=false], size=2]]]]
> at 
> org.apache.ignite.internal.util.IgniteUtils$13.apply(IgniteUtils.java:935) 
> ~[ignite-core-2.7.5.jar:2.7.5]
> at 
> org.apache.ignite.internal.util.IgniteUtils$13.apply(IgniteUtils.java:930) 
> ~[ignite-core-2.7.5.jar:2.7.5]
> at 
> org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:1021) 
> ~[ignite-core-2.7.5.jar:2.7.5]
> at 
> org.apache.ignite.internal.processors.cache.transactions.TransactionProxyImpl.commit(TransactionProxyImpl.java:305)

> ~[ignite-core-2.7.5.jar:2.7.5]
> ...
> Caused by: 
> org.apache.ignite.internal.transactions.IgniteTxTimeoutCheckedException: 
> Failed to acquire lock within provided timeout for transaction 
> [timeout=150, tx=GridDhtTxLocal 
> [nearNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> nearFutId=74752d17c61-0341ea15-fcbd-48ef-b655-299a6d885196, 
> nearMiniId=1, nearFinFutId=null, nearFinMiniId=0, 
> nearXidVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], super=GridDhtTxLocalAdapter 
> [nearOnOriginatingNode=false, nearNodes=[], 
> dhtNodes=[18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> 1144f759-6d1f-4aa3-9592-cc0b3481eb15], explicitLock=false, 
> super=IgniteTxLocalAdapter [completedBase=null, 
> sndTransformedVals=false, depEnabled=false, txState=IgniteTxStateImpl 
> [activeCacheIds=[1895344369], recovery=false, mvccEnabled=false, 
> txMap=[IgniteTxEntry [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], cacheId=1895344369, 
> txKey=IgniteTxKey [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], cacheId=1895344369], 
> val=[op=READ, val=null], prevVal=[op=NOOP, val=null], oldVal=[op=NOOP, 
> val=null], entryProcessorsCol=null, ttl=-1, conflictExpireTime=-1, 
> conflictVer=null, explicitVer=null, dhtVer=null, filters=[], 
> filtersPassed=false, filtersSet=false, entry=GridDhtCacheEntry 
> [rdrs=[], part=127, super=GridDistributedCacheEntry 
> [super=GridCacheMapEntry [key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], val=null, 
> ver=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> hash=1903256846, extras=GridCacheMvccEntryExtras [mvcc=GridCacheMvcc 
> [locs=[GridCacheMvccCandidate 
> [nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, ver=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], threadId=883, 
> id=412844, topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> reentry=null, otherNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> otherVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], mappedDhtNodes=null, mappedNearNodes=null, 
> ownerVer=null, serOrder=GridCacheVersion [topVer=176751246, 
> order=1565274668396, nodeOrder=1], key=KeyCacheObjectImpl [part=127, 
> val=cancel_queue#FIRSTG, hasValBytes=true], 
> masks=local=1|owner=1|ready=1|reentry=0|used=0|tx=1|single_implicit=0|dht_local=1|near_local=0|removed=0|read=1,

> prevVer=GridCacheVersion [topVer=176751246, order=1565274668397, 
> nodeOrder=2], nextVer=null]], rmts=null]], flags=2]]], prepared=1, 
> locked=false, nodeId=null, locMapped=false, expiryPlc=null, 
> transferExpiryPlc=false, flags=0, partUpdateCntr=0, 
> serReadVer=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> xidVer=null], IgniteTxEntry [key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], cacheId=1895344369, 
> txKey=IgniteTxKey [key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], cacheId=1895344369], 
> val=[op=DELETE, val=null], prevVal=[op=NOOP, val=null], 
> oldVal=[op=NOOP, val=null], entryProcessorsCol=null, ttl=-1, 
> conflictExpireTime=-1, conflictVer=null, explicitVer=null, 
> dhtVer=null, filters=[], filtersPassed=false, filtersSet=false, 
> entry=GridDhtCacheEntry [rdrs=[], part=121, 
> super=GridDistributedCacheEntry [super=GridCacheMapEntry 
> [key=KeyCacheObjectImpl [part=121, val=cancel_queue#FIRSTA, 
> hasValBytes=true], val=null, ver=GridCacheVersion [topVer=176751246, 
> order=1565274668382, nodeOrder=2], hash=1903256840, 
> extras=GridCacheMvccEntryExtras [mvcc=GridCacheMvcc 
> [locs=[GridCacheMvccCandidate 
> [nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, ver=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], threadId=883, 
> id=412843, topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> reentry=null, otherNodeId=18e6b4a9-c39d-463a-9260-b5ed5057a491, 
> otherVer=GridCacheVersion [topVer=176751246, order=1565274668396, 
> nodeOrder=1], mappedDhtNodes=null, mappedNearNodes=null, 
> ownerVer=null, serOrder=GridCacheVersion [topVer=176751246, 
> order=1565274668396, nodeOrder=1], key=KeyCacheObjectImpl [part=121, 
> val=cancel_queue#FIRSTA, hasValBytes=true], 
> masks=local=1|owner=1|ready=1|reentry=0|used=0|tx=1|single_implicit=0|dht_local=1|near_local=0|removed=0|read=0,

> prevVer=null, nextVer=GridCacheVersion [topVer=176751246, 
> order=1565274668397, nodeOrder=2]]], rmts=null]], flags=3]]], 
> prepared=1, locked=false, nodeId=null, locMapped=false, 
> expiryPlc=null, transferExpiryPlc=false, flags=0, partUpdateCntr=0, 
> serReadVer=GridCacheVersion [topVer=0, order=0, nodeOrder=0], 
> xidVer=null]]], mvccWaitTxs=null, qryEnlisted=false, 
> forceSkipCompletedVers=false, super=IgniteTxAdapter 
> [xidVer=GridCacheVersion [topVer=176751246, order=1565274668397, 
> nodeOrder=2], writeVer=GridCacheVersion [topVer=176751246, 
> order=1565274668398, nodeOrder=2], implicit=false, loc=true, 
> threadId=883, startTime=1565337963940, 
> nodeId=73a0c88f-3628-4c12-bd75-d273b77a6752, startVer=GridCacheVersion 
> [topVer=176751246, order=1565274668397, nodeOrder=2], endVer=null, 
> isolation=SERIALIZABLE, concurrency=OPTIMISTIC, timeout=150, 
> sysInvalidate=false, sys=false, plc=2, commitVer=null, 
> finalizing=NONE, invalidParts=null, state=PREPARING, timedOut=false, 
> topVer=AffinityTopologyVersion [topVer=3, minorTopVer=1], 
> txCounters=null, duration=152ms, onePhaseCommit=false], size=2]]]]
> at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTxPrepareFuture$PrepareTimeoutObject.onTimeout(GridDhtTxPrepareFuture.java:1983)

> ~[ignite-core-2.7.5.jar:2.7.5]
> at 
> org.apache.ignite.internal.processors.timeout.GridTimeoutProcessor$TimeoutWorker.body(GridTimeoutProcessor.java:234)

> ~[ignite-core-2.7.5.jar:2.7.5]
> at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) 
> ~[ignite-core-2.7.5.jar:2.7.5]
> ... 1 more


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