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Type:
Task
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Resolution: Cannot Reproduce
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: Performance
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Labels:None
I have a Java program that is using multiple threads to write to a stand-alone 2.6.0 server. Documents are about 1.6k each. When using a low batch size (1 or 2) and 6-8 threads, the application gets the below exception after a few minutes of writing to the database:
Exception in thread "Thread-8" 03:29:12.876 [Thread-11] INFO org.mongodb.driver.cluster - No server chosen by PrimaryServerSelector from cluster description ClusterDescription{t
ype=UNKNOWN, connectionMode=SINGLE, all=[ServerDescription{address=century-standalone:27017, type=UNKNOWN, state=CONNECTING}]}. Waiting for 29999 ms before timing out
03:29:12.876 [Thread-9] INFO org.mongodb.driver.cluster - No server chosen by PrimaryServerSelector from cluster description ClusterDescription{type=UNKNOWN, connectionMode=SING
LE, all=[ServerDescription{address=century-standalone:27017, type=UNKNOWN, state=CONNECTING}]}. Waiting for 29999 ms before timing out
java.lang.RuntimeException: org.mongodb.MongoInternalException: Unexpected runtime exception
at net.drmirror.DataLoader$Loader.loadFile(DataLoader.java:183)
at net.drmirror.DataLoader$PoolLoader.run(DataLoader.java:208)
Caused by: org.mongodb.MongoInternalException: Unexpected runtime exception
at org.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:125)
at org.mongodb.connection.UsageTrackingInternalConnection.receiveMessage(UsageTrackingInternalConnection.java:73)
at org.mongodb.connection.PooledConnectionProvider$PooledConnection.receiveMessage(PooledConnectionProvider.java:245)
at org.mongodb.connection.DefaultServer$DefaultServerConnection.receiveMessage(DefaultServer.java:167)
at org.mongodb.protocol.WriteCommandProtocol.receiveMessage(WriteCommandProtocol.java:112)
at org.mongodb.protocol.WriteCommandProtocol.execute(WriteCommandProtocol.java:70)
at org.mongodb.protocol.InsertCommandProtocol.execute(InsertCommandProtocol.java:55)
at org.mongodb.protocol.WriteCommandProtocol.execute(WriteCommandProtocol.java:1)
at org.mongodb.operation.OperationHelper.executeProtocol(OperationHelper.java:89)
at org.mongodb.operation.BaseWriteOperation.execute(BaseWriteOperation.java:79)
at org.mongodb.operation.BaseWriteOperation.execute(BaseWriteOperation.java:1)
at org.mongodb.MongoClientImpl.execute(MongoClientImpl.java:121)
at org.mongodb.MongoCollectionImpl.execute(MongoCollectionImpl.java:160)
at org.mongodb.MongoCollectionImpl$MongoCollectionView.insert(MongoCollectionImpl.java:332)
at org.mongodb.MongoCollectionImpl.insert(MongoCollectionImpl.java:82)
at net.drmirror.DataLoader$Loader.insert(DataLoader.java:156)
at net.drmirror.DataLoader$Loader.loadFile(DataLoader.java:179)
... 1 more
Caused by: java.lang.IllegalStateException: This really shouldn't happen with such a long timeout
at org.mongodb.operation.SingleResultFuture.get(SingleResultFuture.java:111)
at org.mongodb.connection.AsynchronousSocketChannelStream.read(AsynchronousSocketChannelStream.java:57)
at org.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:191)
at org.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:110)
... 17 more
This does not seem to occur when the batch size is larger or less threads are used.