Category: db

Tricks For MongoDB

Those tricks are from the book <50 Tips and Tricks for MongoDB developer> I read it on last March, here I just recorded some tips that I may forget when using MongoDB.

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Host ‘host_name’ is blocked

之前服务器遇到了这个错误:

Host ‘host_name‘ is blocked because of many connection errors.
Unblock with ‘mysqladmin flush-hosts’

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