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https://issues.apache.org/jira/browse/BEAM-975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Baptiste Onofré resolved BEAM-975.
---------------------------------------
Resolution: Fixed
Fix Version/s: 2.1.0
> Issue with MongoDBIO
> --------------------
>
> Key: BEAM-975
> URL: https://issues.apache.org/jira/browse/BEAM-975
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-extensions
> Reporter: Reza Nouri
> Assignee: Jean-Baptiste Onofré
> Fix For: 2.1.0
>
>
> It appears that there is an issue with MongoDBIO. I am using Apache Beam in a
> REST service that reads data from Mongo. After a number of requests, mongoIO
> throws the following exception:
> {code}
> 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)
> {code}
> I suppose there must be a problem with Mongo connection which causes this
> issue.
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