Every few weeks, I get this stack, and the database is unusable afterwards.
Is there some "purge" to call now and then ?
java.lang.Error: Maximum lock count exceeded
at
java.base/java.util.concurrent.locks.ReentrantReadWriteLock$Sync.fullTryAcquireShared(ReentrantReadWriteLock.java:535)
at
java.base/java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryAcquireShared(ReentrantReadWriteLock.java:494)
at
java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1323)
at
java.base/java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:738)
at
org.apache.jena.dboe.storage.system.DatasetGraphTxnCtl.beginMultiMode(DatasetGraphTxnCtl.java:334)
at
org.apache.jena.dboe.storage.system.DatasetGraphTxnCtl.tryNonExclusiveMode(DatasetGraphTxnCtl.java:252)
at
org.apache.jena.dboe.storage.system.DatasetGraphTxnCtl.enterTransaction(DatasetGraphTxnCtl.java:110)
at
org.apache.jena.dboe.storage.system.DatasetGraphTxnCtl.begin(DatasetGraphTxnCtl.java:74)
at
org.apache.jena.dboe.storage.system.DatasetGraphTxnCtl.begin(DatasetGraphTxnCtl.java:99)
at
org.apache.jena.sparql.core.DatasetImpl.begin(DatasetImpl.java:120)
Jean-Marc Vanel
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Twitter: @jmvanel , @jmvanel_fr
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