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Create directories using make file
.... As also noted in the comments, there are other ways to fix the 'do not know how to make output/debug' error that results. One is to remove the dependency on the the 'directories' line. This works because 'mkdir -p' does not generate errors if all the directories it is asked to create already ex...
Neo4j - Cypher vs Gremlin query language
... 100-200 times faster. We did so and got easily factor 60 out of it. As of now we have no single Cypher query in our system due to lack of confidence. Easy Cypher queries are easy to write in Java, complex queries won't perform. The problem is when you have multiple conditions in your query there is...
Best approach for designing F# libraries for use from both F# and C#
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The F# Component Design Guidelines are now hosted here
– Jan Schiefer
Nov 18 '18 at 2:14
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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
...安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.8.tgz
#解压下载的压缩包
tar xvzf mongodb-linux-x86_64-2.4.8.tgz
4、分别在每台机器建立mongos 、config 、 shard1 、shard2、shard3 五个目录。
因为mongos不存储数据，只需要建立...
How to change value of process.env.PORT in node.js?
...llowing line to the file exactly as so Defaults env_keep +="PORT"
Now when you run sudo node app.js it should work as desired.
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Eclipse secure storage
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@FlasHfromRu, probably, but that was a year ago, now I use AndroidStudio and IDEA instead ;)
– Gavriel
Jan 14 '15 at 22:15
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Windows 7 SDK installation failure
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Microsoft now has a knowledge base article called Windows SDK Fails to Install with Return Code 5100 that describes this problem and its fix:
This issue occurs when you install the Windows 7 SDK on a computer that has a newer versi...
How to initialize private static members in C++?
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The class declaration should be in the header file (Or in the source file if not shared).
File: foo.h
class foo
{
private:
static int i;
};
But the initialization should be in source file.
File: foo.cpp
int foo::i = 0;
If the initialization is in the header file then each file tha...
How to find the mysql data directory from command line in windows
...--------+-----------------------------------------------------------+
Or if you want only the data dir use:
mysql -uUSER -p -e 'SHOW VARIABLES WHERE Variable_Name = "datadir"'
These commands work on Windows too, but you need to invert the single and double quotes.
Btw, when executing which mys...
How to check if AlarmManager already has an alarm set?
When my app starts, I want it to check if a particular alarm (registered via AlarmManager) is already set and running. Results from google seem to indicate that there is no way to do this. Is this still correct? I need to do this check in order to advise the user before any action is taken to create...