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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...yes
Warning: Permanently added 'gfs_2,172.16.20.46' (RSA) to the list of known hosts.
root@gfs_2's password:
Now try logging into the machine, with "ssh 'root@gfs_2'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@gfs_2...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...nsciously enable the receiving option to receive texts.
The big challenge now was that people might want to develop apps for their own use that relied on the Google-censored functionality. This is where the “u” companion comes in. It is the companion as it would have been if Google hadn’t cha...
How to run a python script from IDLE interactive shell?
...
As of IDLE 3.7.4, you can now run a module with arguments. Use the new Run -> Run with Customized... command (shortcut Shift+F5) and a popup will open where you can supply your arguments. Unfortunately it doesn't remember them currently so you'll b...
Center image in div horizontally [duplicate]
...
Every solution posted here assumes that you know the dimensions of your img, which is not a common scenario. Also, planting the dimensions into the solution is painful.
Simply set:
/* for the img inside your div */
display: block;
margin-left: auto;
margin-right: auto...
typedef struct vs struct definitions [duplicate]
...aration:
typedef struct bar {
int n;
} bar;
This is a common idiom. Now you can refer to this structure type either as struct bar or just as bar.
Note that the typedef name doesn't become visible until the end of the declaration. If the structure contains a pointer to itself, you have use th...
jQuery Mobile: document ready vs. page events
...ing, basically everything before jQuery Mobile 1.4. Old way of handling is now deprecated and it will stay active until (including) jQuery Mobile 1.5, so you can still use everything mentioned below, at least until next year and jQuery Mobile 1.6.
Old events, including pageinit don't exist any more...
How are Python's Built In Dictionaries Implemented?
Does anyone know how the built in dictionary type for python is implemented? My understanding is that it is some sort of hash table, but I haven't been able to find any sort of definitive answer.
...
What is an AngularJS directive?
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OK I have a better understanding now. One way to think about it is: 1. DSL's usually represent syntax trees 2. The HTML DOM is a DSL syntax tree but it's a rigid one: the tags are mostly rigidly designed and purposed, and not extensible. 3. AngularJS and th...
How to make a PHP SOAP call using the SoapClient class
...m used to writing PHP code, but do not often use Object-Oriented coding. I now need to interact with SOAP (as a client) and am not able to get the syntax right. I've got a WSDL file which allows me to properly set up a new connection using the SoapClient class. However, I'm unable to actually make t...
Applying a function to every row of a table using dplyr?
...mically formed datatframe? So in this data frame the column names are not known. I am able to add if column names are known.
– Arun Raja
May 4 '15 at 7:49
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