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.

为什么在等待端口连接出现之后出现了下面的那句？是什么原因导致的呢？新手求解

Answer 1

1. Delete diagnostic data:

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

2. Start mongodb.

For reference.

Love MongoDB! Have Fun!