Gettng exception in mongodb monitor thread while connection with moralis mongo db

Moralis General
#1

Hi,
I am getting below exception in the monitor thread. While I am able to make successful queries to mongo db, but the below exceptions are coming very few seconds.

connecting to server xxx.xxx.xxx.xxx:56728
com.mongodb.MongoSocketReadException: Prematurely reached end of stream
	at com.mongodb.internal.connection.SocketStream.read(SocketStream.java:112)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:580)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:445)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:299)
	at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:259)
	at com.mongodb.internal.connection.CommandHelper.sendAndReceive(CommandHelper.java:83)
	at com.mongodb.internal.connection.CommandHelper.executeCommand(CommandHelper.java:33)
	at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:105)
	at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:62)
	at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:129)
	at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:117)
	at java.lang.Thread.run(Thread.java:748)
2022-03-31 16:37:07,797 [INFO] build_number:- from com.jrx.game.stats.api.schedulers.SinglePlayerSessionGameEndScheduler in pool-56-thread-1 - run: started SinglePlayerSessionGameEndScheduler
2022-03-31 16:37:07,799 [INFO] build_number:- from com.jrx.game.stats.api.schedulers.SinglePlayerSessionGameEndScheduler in pool-56-thread-1 - run: ended SinglePlayerSessionGameEndScheduler
2022-03-31 16:37:10,469 [INFO] build_number:- from org.mongodb.driver.cluster in cluster-ClusterId{value='62458903725e61157c84a5d5', description='null'}-xxx.xxx.xxx.xxx:56728 - Exception in monitor thread while connecting to server xxx.xxx.xxx.xxx:56728
com.mongodb.MongoSocketReadException: Exception receiving message
	at com.mongodb.internal.connection.InternalStreamConnection.translateReadException(InternalStreamConnection.java:569)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:448)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:299)
	at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:259)
	at com.mongodb.internal.connection.CommandHelper.sendAndReceive(CommandHelper.java:83)
	at com.mongodb.internal.connection.CommandHelper.executeCommand(CommandHelper.java:33)
	at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:105)
	at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:62)
	at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:129)
	at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:117)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketException: Connection reset
	at java.net.SocketInputStream.read(SocketInputStream.java:210)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at com.mongodb.internal.connection.SocketStream.read(SocketStream.java:109)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:580)
	at com.mongodb.internal.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:445)

Any help is much appreciated.

#2

what command/code you run when you get that error?

it looks like the connection was lost

Caused by: java.net.SocketException: Connection reset

#3

The above exception is coming in monitoring thread, so even if there is no active querying from mongodb, the exception is coming every 20~30 seconds. And its not a intermittent issue, coming between constant interval.

#4

I don’t know exactly what it happens. It looks like the connection automatically closes if it is not used a period of time. Maybe it needs some settings in order to keep the connection alive.

#5

I created a local instance of mongodb and used it in the existing code. Didn’t found the above exception.

#6

That instance is it over the network. It is not the same thing.

Did you try it with more than one server?

#7

Hey, it was totally by bad. There was no issue as such. I was trying to connect to 2 mongo dbs , and for one my servers were not whitelisted. Sorry about causing the confusion. We can close the topic.

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