Hi,

We are having a weird issue with Mongo java driver 3.5.0. We have following error initially returned by Mongo and application is handling error smoothly. But after this error, whatever next request picks mongo connection, Next request is hanging forever and not timing out after a certain interval.

1. client-options
   mongo.connectionsPerHost=20
   mongo.threadsAllowedToBlockForConnectionMultiplier=2
   mongo.connectTimeout=30000
   mongo.maxWaitTime=10000
   mongo.socketKeepAlive=true
   mongo.socketTimeout=20000
   mongo.maxConnectionIdleTime=300000
   mongo.maxConnectionLifeTime=43200000
   mongo.heartbeatFrequency=3600000
   mongo.minHeartbeatFrequency=500
   mongo.heartbeatConnectTimeout=20000
   mongo.heartbeatSocketTimeout=20000

Caused by: com.mongodb.MongoQueryException: Query failed with error code 35 and error message '' on server localhost:27017Caused by: com.mongodb.MongoQueryException: Query failed with error code 35 and error message '' on server localhost:27017 at com.mongodb.connection.ProtocolHelper.getQueryFailureException(ProtocolHelper.java:131) at com.mongodb.connection.GetMoreProtocol.execute(GetMoreProtocol.java:88) at com.mongodb.connection.GetMoreProtocol.execute(GetMoreProtocol.java:49) at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:159) at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:289) at com.mongodb.connection.DefaultServerConnection.getMore(DefaultServerConnection.java:254) at com.mongodb.operation.QueryBatchCursor.getMore(QueryBatchCursor.java:218) at com.mongodb.operation.QueryBatchCursor.hasNext(QueryBatchCursor.java:105) at com.mongodb.MongoBatchCursorAdapter.hasNext(MongoBatchCursorAdapter.java:46) at com.mongodb.DBCursor.hasNext(DBCursor.java:145) at com.mongodb.DBCursor.fillArray(DBCursor.java:910) at com.mongodb.DBCursor.toArray(DBCursor.java:655) at com.mongodb.DBCursor.toArray(DBCursor.java:643)