[jira] [Created] (BEAM-975) Issue with MongoDBIO

["Reza Nouri (JIRA)" <ji...@apache.org>]

Reza Nouri created BEAM-975:
-------------------------------

             Summary: Issue with MongoDBIO
                 Key: BEAM-975
                 URL: https://issues.apache.org/jira/browse/BEAM-975
             Project: Beam
          Issue Type: Bug
            Reporter: Reza Nouri


It appears that there is an issue with MongoDBIO. I am Apache Beam in a REST service that reads from Mongo. After a number of requests, mongoIO throws the following exception:

com.mongodb.MongoSocketReadException: Prematurely reached end of stream
	at com.mongodb.connection.SocketStream.read(SocketStream.java:88)
	at com.mongodb.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:491)
	at com.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:221)
	at com.mongodb.connection.CommandHelper.receiveReply(CommandHelper.java:134)
	at com.mongodb.connection.CommandHelper.receiveCommandResult(CommandHelper.java:121)
	at com.mongodb.connection.CommandHelper.executeCommand(CommandHelper.java:32)
	at com.mongodb.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:83)
	at com.mongodb.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:43)
	at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:115)
	at com.mongodb.connection.UsageTrackingInternalConnection.open(UsageTrackingInternalConnection.java:46)
	at com.mongodb.connection.DefaultConnectionPool$PooledConnection.open(DefaultConnectionPool.java:381)
	at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:96)
	at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:82)
	at com.mongodb.connection.DefaultServer.getConnection(DefaultServer.java:72)
	at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(ClusterBinding.java:86)
	at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:237)
	at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:212)
	at com.mongodb.operation.FindOperation.execute(FindOperation.java:482)
	at com.mongodb.operation.FindOperation.execute(FindOperation.java:79)
	at com.mongodb.Mongo.execute(Mongo.java:772)
	at com.mongodb.Mongo$2.execute(Mongo.java:759)
	at com.mongodb.OperationIterable.iterator(OperationIterable.java:47)
	at com.mongodb.FindIterableImpl.iterator(FindIterableImpl.java:143)
	at org.apache.beam.sdk.io.mongodb.MongoDbIO$BoundedMongoDbReader.start(MongoDbIO.java:359)
	at org.apache.beam.runners.direct.BoundedReadEvaluatorFactory$BoundedReadEvaluator.processElement(BoundedReadEvaluatorFactory.java:99)
	at org.apache.beam.runners.direct.TransformExecutor.processElements(TransformExecutor.java:154)
	at org.apache.beam.runners.direct.TransformExecutor.run(TransformExecutor.java:121)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

I think there must be problem with Mongo connection which causes this issue.



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