小编use*_*912的帖子

令我惊讶的是,我发现使用3.0版本与2.6.4将同一文件导入同一个MongoDB(3.0)的速度要慢得多(> 20倍).有没有人有同样的问题？以及如何解决它？

以下是详细信息:

1. 2.6.4为同一个json文件加载大约16K行

   **-logbash-3.2$ mongoimport --host mcp-mongo-dev-1201.sea2.rhapsody.com:27017 --db media 
           --collection media --upsert --upsertFields _id --type json --file /data/xxx.json
   

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   connected to: mcp-mongo-dev-1201.sea2.rhapsody.com:27017
   2015-10-08T15:24:02.007-0700            Progress: 8860712/5024041951    0%
   2015-10-08T15:24:02.007-0700                    54900   18300/second
   2015-10-08T15:24:05.004-0700            Progress: 15590853/5024041951   0%
   2015-10-08T15:24:05.004-0700                    96900   16150/second**
   

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2. 这是3.0运行:

   -logbash-3.2$ mongoimport30 --version
   
   mongoimport version: 3.0.6
   git version: 7588eb887549bd5d2fc7bbc08f7c62d4b29b9d75
   
   -logbash-3.2$ mongoimport30 --host mcp-mongo-dev-1201.sea2.rhapsody.com:27017 --db media 
         --collection media --upsertFields _id --type json --file /data/mediaingestor2.json  --numInsertionWorkers 20000 -v
   

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   2015-10-08T15:53:04.393-0700    using upsert fields: [_id]
   2015-10-08T15:53:04.393-0700    filesize: 5024041951 bytes
   2015-10-08T15:53:04.393-0700    using fields: 
   2015-10-08T15:53:04.396-0700    connected to: mcp-mongo-dev-1201.sea2.rhapsody.com:27017
   2015-10-08T15:53:04.396-0700 …

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