Shulou(Shulou.com)06/01 Report--

Some time ago, online dba was ready to launch Mongodb sharding. In order to test whether it can expand the writing ability, I wrote a variety of scripts (multi-thread writing a mongos, multi-thread writing multiple mongos) to test and found that it was always written on a shard. The conclusion is that mongodb sharding can not expand the write ability =. =

So is this really the case?

Forget it, just send the door: (because the default is that range shard,2.4 can use hashed shard)

Http://docs.mongodb.org/manual/core/sharding-shard-key/#sharding-shard-key-query-isolation

Reading documents is a basic skill.

PS: cherish life, stay away from mongo

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