我正在运行一个简单的程序
TitanGraph bg = TitanFactory.open("/home/titan-all-0.4.2/conf/titan-cassandra-es.properties");
IdGraph g = new IdGraph(bg, true, false);
Vertex v = g.addVertex("xyz132456");
g.commit();
此处之前没有顶点xyz132456存在，但我得到以下异常。我经常得到这个例外。我的titan服务器（0.4.2）配置了所有默认设置，因为我只是测试简单的操作。
253 [main] INFO org.elasticsearch.node - [Chtylok] version[0.90.5], pid[4015], build[c8714e8/2013-09-17T12:50:20Z]
253 [main] INFO org.elasticsearch.node - [Chtylok] initializing ...
260 [main] INFO org.elasticsearch.plugins - [Chtylok] loaded [], sites []
2303 [main] INFO org.elasticsearch.node - [Chtylok] initialized
2303 [main] INFO org.elasticsearch.node - [Chtylok] starting ...
2309 [main] INFO org.elasticsearch.transport - [Chtylok] bound_address {local[1]}, publish_address {local[1]}
2316 [elasticsearch[Chtylok][clusterService#updateTask][T#1]] INFO org.elasticsearch.cluster.service - [Chtylok] new_master [Chtylok][1][local[1]]{local=true}, reason: local-disco-initial_connect(master)
2325 [main] INFO org.elasticsearch.discovery - [Chtylok] elasticsearch/1
2420 [main] INFO org.elasticsearch.http - [Chtylok] bound_address {inet[/0:0:0:0:0:0:0:0:9201]}, publish_address {inet[/10.0.0.5:9201]}
2420 [main] INFO org.elasticsearch.node - [Chtylok] started
2987 [elasticsearch[Chtylok][clusterService#updateTask][T#1]] INFO org.elasticsearch.gateway - [Chtylok] recovered [1] indices into cluster_state
3234 [main] INFO com.thinkaurelius.titan.diskstorage.Backend - Initiated backend operations thread pool of size 2
3542 [main] INFO com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration - Configuring edge store cache size: 201476830
5105 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [1000 ms]
6105 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [2000 ms]
7105 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [3000 ms]
8106 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [4001 ms]
9106 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [5001 ms]
10106 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [6001 ms]
11107 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [7002 ms]
12107 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [8002 ms]
13107 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [9002 ms]
14108 [main] WARN com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool - Waiting for id renewal thread on partition 2 [10003 ms]
Exception in thread "Thread-4" com.thinkaurelius.titan.core.TitanException: Could not acquire new ID block from storage
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool.renewBuffer(StandardIDPool.java:117)
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool.access$100(StandardIDPool.java:14)
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool$IDBlockThread.run(StandardIDPool.java:172)
Caused by: com.thinkaurelius.titan.diskstorage.PermanentStorageException: Permanent failure in storage backend
at com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftKeyColumnValueStore.convertException(CassandraThriftKeyColumnValueStore.java:311)
at com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftKeyColumnValueStore.getNamesSlice(CassandraThriftKeyColumnValueStore.java:196)
at com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftKeyColumnValueStore.getSlice(CassandraThriftKeyColumnValueStore.java:120)
at com.thinkaurelius.titan.diskstorage.idmanagement.ConsistentKeyIDManager$1.call(ConsistentKeyIDManager.java:106)
at com.thinkaurelius.titan.diskstorage.idmanagement.ConsistentKeyIDManager$1.call(ConsistentKeyIDManager.java:103)
at com.thinkaurelius.titan.diskstorage.util.BackendOperation.execute(BackendOperation.java:90)
at com.thinkaurelius.titan.diskstorage.idmanagement.ConsistentKeyIDManager.getCurrentID(ConsistentKeyIDManager.java:103)
at com.thinkaurelius.titan.diskstorage.idmanagement.ConsistentKeyIDManager.getIDBlock(ConsistentKeyIDManager.java:159)
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool.renewBuffer(StandardIDPool.java:111)
... 2 more
Caused by: TimedOutException()
at org.apache.cassandra.thrift.Cassandra$multiget_slice_result$multiget_slice_resultStandardScheme.read(Cassandra.java:11623)
at org.apache.cassandra.thrift.Cassandra$multiget_slice_result$multiget_slice_resultStandardScheme.read(Cassandra.java:11560)
at org.apache.cassandra.thrift.Cassandra$multiget_slice_result.read(Cassandra.java:11486)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
at org.apache.cassandra.thrift.Cassandra$Client.recv_multiget_slice(Cassandra.java:701)
at org.apache.cassandra.thrift.Cassandra$Client.multiget_slice(Cassandra.java:685)
at com.thinkaurelius.titan.diskstorage.cassandra.thrift.CassandraThriftKeyColumnValueStore.getNamesSlice(CassandraThriftKeyColumnValueStore.java:176)
... 9 more
Exception in thread "main" java.lang.IllegalArgumentException: -1
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:92)
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool.nextBlock(StandardIDPool.java:88)
at com.thinkaurelius.titan.graphdb.database.idassigner.StandardIDPool.nextID(StandardIDPool.java:134)
at com.thinkaurelius.titan.graphdb.database.idassigner.VertexIDAssigner.assignID(VertexIDAssigner.java:269)
at com.thinkaurelius.titan.graphdb.database.idassigner.VertexIDAssigner.assignID(VertexIDAssigner.java:155)
at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.assignID(StandardTitanGraph.java:226)
at com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx.addPropertyInternal(StandardTitanTx.java:521)
at com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx.setProperty(StandardTitanTx.java:552)
at com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx.addProperty(StandardTitanTx.java:495)
at com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx.addVertex(StandardTitanTx.java:345)
at com.thinkaurelius.titan.graphdb.blueprints.TitanBlueprintsTransaction.addVertex(TitanBlueprintsTransaction.java:72)
at com.thinkaurelius.titan.graphdb.blueprints.TitanBlueprintsGraph.addVertex(TitanBlueprintsGraph.java:157)
at com.thinkaurelius.titan.graphdb.blueprints.TitanBlueprintsGraph.addVertex(TitanBlueprintsGraph.java:24)
at com.tinkerpop.blueprints.util.wrappers.id.IdGraph.addVertex(IdGraph.java:131)
at newpackage.CityBizzStarting.main(CityBizzStarting.java:24)