Question

有时，并非总是如此，当集群的拓扑发生变化时，我的应用程序挂起的时间可能长达1分钟或更长时间。然后在日志中看到以下“点燃”警告。我想这就是我的应用程序挂在缓存操作上的原因。

是什么导致多头交易？我希望是网络问题还是GC？

我无法找出代码中的哪个缓存操作导致了此长时间的事务。该警告是否可以帮助我找出它的作用？

22:00:30.456 [grid-timeout-worker-#63][101] WARN  org.apache.ignite.internal.diagnostic-[warning] Found long running transaction [startTime=21:58:57.176, curTime=22:00:30.456, tx=GridNearTxLocal [mappings=IgniteTxMappingsImpl [], nearLocallyMapped=false, colocatedLocallyMapped=false, needCheckBackup=null, hasRemoteLocks=false, trackTimeout=false, lb=null, thread=<failed to find active thread 1498>, mappings=IgniteTxMappingsImpl [], super=GridDhtTxLocalAdapter [nearOnOriginatingNode=false, nearNodes=[], dhtNodes=[], explicitLock=false, super=IgniteTxLocalAdapter [completedBase=null, sndTransformedVals=false, depEnabled=false, txState=IgniteTxStateImpl [activeCacheIds=[], recovery=null, txMap=[]], super=IgniteTxAdapter [xidVer=GridCacheVersion [topVer=147994093, order=1536523104974, nodeOrder=74], writeVer=null, implicit=false, loc=true, threadId=1498, startTime=1536523137176, nodeId=e8153238-1d5a-4149-8db8-83a9fc820750, startVer=GridCacheVersion [topVer=147994093, order=1536523104974, nodeOrder=74], endVer=null, isolation=REPEATABLE_READ, concurrency=PESSIMISTIC, timeout=0, sysInvalidate=false, sys=false, plc=2, commitVer=null, finalizing=NONE, invalidParts=null, state=ACTIVE, timedOut=false, topVer=AffinityTopologyVersion [topVer=-1, minorTopVer=0], duration=93280ms, onePhaseCommit=false], size=0]]]]

我的缓存是这样创建的：

<bean class="org.apache.ignite.configuration.CacheConfiguration">
    <property name="name" value="MFDB_JobList" />
    <property name="cacheMode" value="PARTITIONED" />
    <property name="backups" value="0" />
    <property name="atomicityMode" value="TRANSACTIONAL"/> 
    <property name="writeSynchronizationMode" value="FULL_SYNC"/>
    <property name="indexedTypes">
        <list>
            <value>java.util.UUID</value>
            <value>CacheJobQueueEntry</value>
        </list>
    </property>
</bean>

Apache Ignite缓存长期运行的事务

1 个答案: