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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...好了，安装软件！
1、准备机器，IP分别设置为： 192.168.0.136、192.168.0.137、192.168.0.138。
2、分别在每台机器上建立mongodb分片对应测试文件夹。
#存放mongodb数据文件
mkdir -p /data/mongodbtest
#进入mongodb文件夹
cd /data/mongodbtest
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Switch case with fallthrough?
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edited Sep 28 '16 at 23:46
heemayl
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Alter table add multiple columns ms sql
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James
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answered Mar 26 '10 at 13:50
Philip KelleyPhili...
What does the caret operator (^) in Python do?
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1
>>> 0^1
1
To explain one of your own examples:
>>> 8^3
11
Think about it this way:
1000 # 8 (binary)
0011 # 3 (binary)
---- # APPLY XOR ('vertically')
1011 # result = 11 (binary)
share
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How to join absolute and relative urls?
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218
You should use urlparse.urljoin :
>>> import urlparse
>>> urlparse.urljoin(u...
Setting JDK in Eclipse
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edited Oct 21 '19 at 18:04
Manuel Jordan
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Hibernate dialect for Oracle Database 11g?
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edited Aug 8 '16 at 15:46
Community♦
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answered Mar 4 '11 at 4:59
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How do you downgrade rubygems?
...Ryan Bigg
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36
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How to quickly edit values in table in SQL Server Management Studio?
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answered Oct 8 '09 at 3:37
brendanbrendan
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How to index into a dictionary?
...ct. Or use a list of pairs
l = [("blue", "5"), ("red", "6"), ("yellow", "8")]
if you don't need access by key. (Why are your numbers strings by the way?)
In Python 3.7, normal dictionaries are ordered, so you don't need to use OrderedDict anymore (but you still can – it's basically the same ...