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我在删除关系时遇到了奇怪的问题。

我认为这是某种僵局的发生。这是代码

Transaction txBegin = graphDb.beginTx();

try {
    for (Relationship r : GlobalGraphOperations.at(graphDb).getAllRelationships()) {
        for(String indexName : graphDb.index().relationshipIndexNames()) {
            graphDb.index().forRelationships(indexName).remove(r);
        }
    }
    r.delete(); // EXCEPTION HERE
}

这是我得到的堆栈跟踪

Thread [16462692@qtp-14650787-39 - /db/data/ext/MyGraph/graphdb/deleteAll] (Suspended)  
waiting for: RWLock  (id=90)    
Object.wait(long) line: not available [native method]   
RWLock(Object).wait() line: 503 
RWLock.acquireWriteLock(Transaction) line: 341  
LockManagerImpl.getWriteLock(Object, Transaction) line: 133 
WritableTransactionState.acquireWriteLock(Object) line: 279 
NodeManager.deleteRelationship(RelationshipImpl, TransactionState) line: 837    
OldTxStateBridgeImpl.deleteRelationship(long) line: 150 
TxStateImpl.relationshipDoDelete(long) line: 263    
StateHandlingStatementOperations.relationshipDelete(Statement, long) line: 90   
ConstraintEnforcingEntityWriteOperations.relationshipDelete(Statement, long) line: 143  
LockingStatementOperations.relationshipDelete(Statement, long) line: 188    
DataStatement.relationshipDelete(long) line: 62 
RelationshipProxy.delete() line: 86 
MyGraph.deleteAll(GraphDatabaseService) line: 188   
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]
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