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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...{
wfc-timeout 120;
degr-wfc-timeout 120;
}
disk {
on-io-error detach;
}
net{
timeout 60;
connect-int 10;
ping-int 10;
max-buffers 2048;
max-epoch-size 2048;
}
on share1{
device /dev/drbd0;
disk /dev/sdb1;
address 10.10.10.42:7788;...
Make sure only a single instance of a program is running
...cntl.LOCK_EX | fcntl.LOCK_NB)
already_running = False
except IOError:
already_running = True
return already_running
A lot like S.Lott's suggestion, but with the code.
share
|
...
Difference between binary semaphore and mutex
... to semGive a mutex currently held by Task A, Task B's call will return an error and fail.
Mutexes always use the following sequence:
- SemTake
- Critical Section
- SemGive
Here is a simple example:
Thread A Thread B
Take Mutex
access data
... ...
std::string formatting like sprintf
... ) + 1; // Extra space for '\0'
if( size <= 0 ){ throw std::runtime_error( "Error during formatting." ); }
std::unique_ptr<char[]> buf( new char[ size ] );
snprintf( buf.get(), size, format.c_str(), args ... );
return std::string( buf.get(), buf.get() + size - 1 ); // We do...
Phase • Animations made easy! - Extensions - Kodular Community
...eSvVWMKMOxG1Hi82M4qOCNQ/view?usp=sharing
Let me know if you find any bugs/errors. Also, I’m open to suggestions and feature requests.
127 Likes
...
Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly
... people to actually use the Output window. Build is so much more than F5 + Error List window.
– JJS
Apr 1 '10 at 21:01
2
...
Is there a tool to convert JavaScript files to TypeScript [closed]
...is just wrong. The following code is correct in JavaScript, but creates an error in TypeScript:
var data={x:5, y:6};
data.z=5;
You can get the dynamic behaviour of JavaScript by declaring data as "ambient"
var data:any={x:5, y:6};
data.z=5;
Now this will work in TypeScript, too. Nevertheless...
How can I configure Logback to log different levels for a logger to different destinations?
...ngs with Logback filters. The below configuration will only print warn and error messages to stderr, and everything else to stdout.
logback.xml
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<target>System.out</target>
<filter class="com.foo.StdOutFil...
Git error: “Host Key Verification Failed” when connecting to remote repository
...
As I answered previously in Cloning git repo causes error - Host key verification failed. fatal: The remote end hung up unexpectedly, add the GitHub to the list of authorized hosts:
ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts
...
How do you test that a Python function throws an exception?
...he assertion; using @Moe's answer above for example: self.assertRaises(TypeError, mymod.myfunc). You can find a full list of the Built-in Exceptions here: docs.python.org/3/library/exceptions.html#bltin-exceptions
– Raymond Wachaga
Feb 7 '19 at 17:51
...