python streaming.py的输出：
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python streaming.py | mongoimport -d test -c twitter.messages的输出：
2015-06-29T06:47:22.806+0000 connected to: localhost
2015-06-29T06:47:25.588+0000 test.twitter.messages 0.0 B
2015-06-29T06:47:28.587+0000 test.twitter.messages 4.0 KB
2015-06-29T06:47:31.587+0000 test.twitter.messages 4.0 KB
2015-06-29T06:47:34.587+0000 test.twitter.messages 20.0 KB
2015-06-29T06:47:37.587+0000 test.twitter.messages 24.0 KB
2015-06-29T06:47:40.587+0000 test.twitter.messages 24.0 KB
但是，文档不会导入到集合中。
mongo
MongoDB shell version: 3.0.4
connecting to: test
> db.twitter.messages.count()
0
> db.twitter.messages.find()
>
我知道我可以使用PyMongo直接在streaming.py内导入文档，但我想知道为什么这不会起作用。任何帮助将不胜感激。
由于
更新
但这有效：
python streaming.py > data.json
mongoimport -d test -c twitter.messages --file data.json
这样做：
cat data.json | mongoimport -d test -c twitter.messages
这并不是：
python streaming.py > data.json &
tail -f data.json | mongoimport -d test -c twitter.messages
答案 0 :(得分：1)
你试过了吗？
python streaming.py | mongoimport -d test -c twitter.messages
或者有没有理由说明为什么需要先将文件保存到磁盘？