Hi,

mongos does not start if primary config server is not available, even though there is secondary config server available.
Version is 3.2.3, the same happens with version 3.2.4. Config servers are configured as a replica set. WiredTiger is used. Sharded.

Expected: mongos reads configuration from secondary config server and starts OK

This behavior is critically bad for our customers, as they are not able to restart the node with mongos and config server, when it is network disconnected.