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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
... REPLICATION SLAVE ON *.*
TO '<SLAVE_USER>'@'<SLAVE_HOST>'
IDENTIFIED BY '<SLAVE_PASSWORD>';
注：出于安全性和灵活性的考虑，不要把root等具有SUPER权限用户作为复制账号。
然后设置主服务器配置文件（缺省：/etc/my.cnf）：
[mysqld]
se...
Returning value from Thread
... // value[0] holds 2 at this point.
}
You can also use an Executor and a Callable like this:
public void test() throws InterruptedException, ExecutionException
{
ExecutorService executor = Executors.newSingleThreadExecutor();
Callable<Integer> callable = new Callable<Integer&g...
How can I pass a member function where a free function is expected?
...nctions are not like normal function pointers: member functions need to be called on an object which is passed as an implicit argument to the function. The signature of your member function above is, thus
void (aClass::*)(int, int)
rather than the type you try to use
void (*)(int, int)
One app...
How do you run your own code alongside Tkinter's event loop?
...ation for the after method:
def after(self, ms, func=None, *args):
"""Call function once after given time.
MS specifies the time in milliseconds. FUNC gives the
function which shall be called. Additional parameters
are given as parameters to the function call. Return
identifie...
Passing arguments to C# generic new() of templated type
...;T>(...) where T : new()
However that will only work when you want to call the constructor which has no parameters. Not the case here. Instead you'll have to provide another parameter which allows for the creation of object based on parameters. The easiest is a function.
public static str...
Maximum single-sell profit
...t this runs in O(n lg n) time and will use O(lg n) space for the recursive calls. We've just beaten the naive O(n2) solution!
But wait! We can do much better than this. Notice that the only reason we have an O(n) term in our recurrence is that we had to scan the entire input trying to find the m...
Android REST client, Sample?
...sponses.
My approach uses just AsyncTasks under the covers. In my case, I "call" these Tasks from my Activity instance; but to fully account for cases like screen rotation, you might choose to call them from a Service or such.
I consciously chose my REST client itself to be an API. This means, that ...
Why are Subjects not recommended in .NET Reactive Extensions?
...styles of system you need to ingrate to.
The system raises an event or a call back when a message arrives
You need to poll the system to see if there are any message to process
For option 1, easy, we just wrap it with the appropriate FromEvent method and we are done. To the Pub!
For option 2, w...
git stash blunder: git stash pop and ended up with merge conflicts
...removed from the stash list. You need to resolve the conflicts by hand and call git stash drop manually afterwards.
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Why in Java 8 split sometimes removes empty strings at start of result array?
...
The behavior of String.split (which calls Pattern.split) changes between Java 7 and Java 8.
Documentation
Comparing between the documentation of Pattern.split in Java 7 and Java 8, we observe the following clause being added:
When there is a positive-widt...