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What is the time limit for Mongos connecting to Mongod?

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I thought the time limit for Mongos to connect to Mongod was hard coded to 30 seconds. But some times after less than 2 seconds I see the following exception in the mongos logs -
Failed to connect to HOST:27017 - ExceededTimeLimit: Operation timed out
Any idea why?

posted Jun 20, 2018 by anonymous

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