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搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...器节点的最后操作时间戳。每个mongodb都有oplog机制会记录本机的操作，方便和主服务器进行对比数据是否同步还可以用于错误恢复。
如果集群中大部分服务器down机了，保留活着的节点都为 secondary状态并停止，不选举了。
如果...
How to get the IP address of the server on which my C# application is running on?
I am running a server, and I want to display my own IP address.
26 Answers
26
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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...oking for a command line solution that would return me the primary (first) IP address of the localhost, other than 127.0.0.1
...
Select rows which are not present in other table
...ll of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM login_log l
WHERE NOT EXISTS (
SELECT -- SELECT list mostly irrelevant; can just be empty in Postgres
FROM ip_location
WHERE ip = l.ip
);
Also consider:
What is easier to read in EXISTS subque...
项目管理实践【三】每日构建【Daily Build Using CruiseControl.NET and MS...
...belFormat>00000</labelFormat>
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<webURL>http://202.196.96.55:8080/server/l...
How to get IP address of the device from code?
Is it possible to get the IP address of the device using some code?
27 Answers
27
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Deny all, allow only one IP through htaccess
I'm trying to deny all and allow only for a single IP. But, I would like to have the following htaccess working for that single IP. I'm not finding a way to have both working: the deny all and allow only one, plus the following options:
...
How to identify server IP address in PHP
How can I identify the server IP address in PHP?
15 Answers
15
...
传感器组件 · App Inventor 2 中文网
...度、 海拔（如果设备支持）、速度（如果设备支持） 和地址。
也可以执行“地理编码”，转换给定的地址（不限于当前地址）到纬度（使用 由地址求纬度方法）和经度（使用 由地址求经度 方法）。
中文网注：如果获取不了...
Get local IP address in node.js
...ave a simple node.js program running on my machine and I want to get local IP address of PC on which my program is running. How do I get it with node.js?
...