mongodb - mongod出现unclean full-time diagnostic data??

Question

2017-03-08T15:21:16.453 0800 I NETWORK [thread1] waiting for connections on port 27017

2017-03-08T15:21:17.026 0800 I FTDC [ftdc] Unclean full-time diagnostic data capture shutdown detected, found interim file, some metrics may have been lost.

Why does the following sentence appear after waiting for the port connection to appear? What causes it? Novice solution

Answer 1

1. Delete diagnostic data:

rm -f /var/lib/mongo/diagnostic.data/*

2. Start mongodb.

For reference.

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