I have a shard, using mongo v2.4.11. It has to mongos, 3 config, and 8 replica set (2 replica for each set, means 16 node for shard)
It is keep having exception as per below.
Caused by: com.mongodb.MongoException: can't connect to new replica set master [shardA01:27017], err: couldn't connect to server shardA01:27017
I try to look for anyone who might has similar issue, but i found nothing. This happens about 1 of 1000 request.
All node of shard is hosted using aws virtual servers.
What i have done is - check CPU and memory but everything is fine, not even > 10% of usage - set master priority to one of the node.
Anyone know what the problem is? Or how to further investigate the issue?