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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
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#使用admin数据库
use admin
#定义副本集配置
config = { _id:"shard1", members:[
{_id:0,host:"192.168.0.136:22001"},
{_id:1,host:"192.168.0.137:22001"},
{_id:2,host:"192.168.0.138:22001",arbiterOnly:true}
...
How to reference style attributes from a drawable?
...d your drawable to your theme.xml.
<style name="MyTheme" parent="@android:style/Theme.NoTitleBar">
<item name="my_drawable">@drawable/my_drawable</item>
</style>
Reference your drawable in your layout using your attribute.
<TextView android:background="?my_drawable"...
How to make a div fill a remaining horizontal space?
I have 2 divs: one in the left side and one in the right side of my page. The one in the left side has fixed width and I want the one of the right side to fill the remaining space.
...
How to properly URL encode a string in PHP?
...ding format except that the space is encoded with + instead of %20. And besides that, application/x-www-form-urlencoded is used to encode form data while the Percent-Encoding has a more general usage.
– Gumbo
Jan 20 '11 at 10:25
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How to handle button clicks using the XML onClick within Fragments
Pre-Honeycomb (Android 3), each Activity was registered to handle button clicks via the onClick tag in a Layout's XML:
1...
Practical uses for AtomicInteger
... 1 operations, this is detected rather than overwriting the old update (avoiding the "lost update" problem). This is actually a special case of compareAndSet - if the old value was 2, the class actually calls compareAndSet(2, 3) - so if another thread has modified the value in the meantime, the inc...
How to use ssh agent forwarding with “vagrant ssh”?
...Vagrant.configure("2") do |config|
config.ssh.private_key_path = "~/.ssh/id_rsa"
config.ssh.forward_agent = true
end
config.ssh.private_key_path is your local private key
Your private key must be available to the local ssh-agent. You can check with ssh-add -L, if it's not listed add it with s...
Facebook Post Link Image
... images work best, but you are allowed to use images up to three times as wide as they are tall.
og:url - The canonical, permanent URL of the page representing the entity. When you use Open Graph tags, the Like button posts a link to the og:url instead of the URL in the Like button code.
og:site_nam...
PowerShell: Setting an environment variable for a single command only
...$pre} else {Remove-Item env:\foo}... some might say unwieldy, but will avoid side effects...
– Lucas
Jun 21 '17 at 21:32
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How to convert int to NSString?
...iption will print the date, but stringValue will crash): NSNumber *test = (id)[NSDate date]; NSLog(@"description: %@", test.description); NSLog(@"string value: %@", test.stringValue);
– Islam Q.
Aug 5 '16 at 6:31
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