Getting following exception when trying to do insert / udpate.

<code>
Caused by: com.mongodb.MongoException: timeout
at com.mongodb.CommandResult.getException(CommandResult.java:100)
at com.mongodb.CommandResult.throwOnError(CommandResult.java:134)
at com.mongodb.DBTCPConnector._checkWriteError(DBTCPConnector.java:142)
at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:183)
at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:155)
at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:249)
at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:205)
at com.mongodb.DBCollection.insert(DBCollection.java:57)
at com.mongodb.DBCollection.insert(DBCollection.java:86)
at com.mongodb.DBCollection.save(DBCollection.java:792)
at com.mongodb.DBCollection.save(DBCollection.java:768)

-----------------------------------------------------------------------

com.mongodb.MongoException: timeout
at com.mongodb.CommandResult.getException(CommandResult.java:100)
at com.mongodb.CommandResult.throwOnError(CommandResult.java:134)
at com.mongodb.DBTCPConnector._checkWriteError(DBTCPConnector.java:142)
at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:183)
at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:155)
at com.mongodb.DBApiLayer$MyCollection.update(DBApiLayer.java:328)
at com.mongodb.DBCollection.update(DBCollection.java:160)
at com.mongodb.DBCollection.update(DBCollection.java:191)
</code>

Data gets persisted to the DB though.

On second attempt, I don't get the exception.
Also this is very intermittent and most often happens when the server is idle for a while.