". GetBytes (), ids.open_acl_unsafe,createmode.persistent) ;//Create a subdirectory node named "ChildNode2" with the "ChildNode1" sibling under the "RootNode" Node System.out.println (all sub-directory nodes under directory node RootNode are: "+ Zookeeper.getchildren ("/rootnode", true)); Remove all subdirectory nodes under directory Node "RootNode" Zookeeper.setdata ("/rootnode/childnode2", "Newchildnode2data". GetBytes (),-1);//Modify the name " ChildNode2 "Directory node data zookeeper.delete
wordcount example ? Son (jidong AH)1, prepare the need to carry out wordcount files, at the test.txt (random input string, save and exit)??-------------------------------------------------------------------------------------------2. Upload the test file from the previous step to the firsttest directory in the DFS file system (if dfs does not contain firsttest directory automatically creates a directory with the same name, using the command:bin/hadoop dfs-ls to view the directory that is already
environment is
1
Pyenv Activate env271
Next, our Python environment has switched to 2.7.1 's virtual environment, running the ' Python ' command authentication
12345
(env271) tonyubuntu:~$ python python 2.7.1 (r271:86832, may9 2014 01:07:17) [GCC 4.8.2] on linux3 Type "Help", "Copyright", "credits" or "license" For more information. >>>
As you can see, the Python version is already 2.7.1 and is in a vir
rely on these package, you can add the parameter--no-site-packages to establish the virtual environment:virtualenv --no-site-packages [虚拟环境名称]4. ExitdeactivateIf the virtual environment is not started and the PIP tool is installed, the package will be installed in the system environment, in order to avoid this, you can add the following in the ~/.BASHRC file:export PIP_REQUIRE_VIRTUALENV=trueor let the system automatically turn on the virtual environment when the PIP is executed:export PIP_RESP
can generate the corresponding URL with the partition, found that the request issued in admin/controller/action form can be hit to the HealthDemo.Web.Admin.Controllers corresponding controller, But the controller does not find the view that has been isolated in the "outside", the actual physical path of this view file is under home in Healthdemo.web\administration\views, so we want to reset the path of the MVC engine search templateThrough this little experiment, I felt the settings for the nex
# 1, if you open the virtual host, this must have (IP: port), found #NameVirtualHost *:80 modified to: Namevirtualhost 127.0.0.1:80 # 2, modify A standalone server is one that can build multiple websites, an IP address, a port
, length and other information. 650) this.width=650; "src=" Http://static.oschina.net/uploads/img/201505/06092400_DdGf.png "width=" "alt=" 06092400_ddgf.png "/>Song Playback interface: Implementation--Pause, continue playing, previous, next, fast forward, rewind function, lyrics function because of the time relationship is not added.650) this.width=650; "src=" Http://static.oschina.net/uploads/img/201505/06092401_wa0C.png "width=" "alt=" 06092401_wa0c.png "/>because of a lot of code, so it is no
saving Four Other Details: MSYQL installation to the last step start service error resolution 1. Go to the Control Panel and remove MySQL first. 2. Delete MySQL under C-Disk C:\Documents and Settings\All Users\Application Data. 3. If you have a directory on another disk, you also need to delete it. Empty directories are also deleted 4. Go to regedit to register the registry Hkey_local_machine/system/controlset001/services/eventlog/applications/mysql (usually in this directory) (It can be re-ins
High Availability MySQL Reading Notes 2-standalone MySQL Master/Slave ConfigurationThe Master-slave architecture is the simplest single Master-slave replication (that is, one Master and one slave without any hot backup and multiple slave). The basic topology of the Master-slave architecture is shown below:
The basic master-slave replication can be summarized as follows:Configure the master server and configure the slave server to connect the slave to
ORACLE11G restores the rman backup of dataguard to the detailed process of standalone oracle in the test environment
1. copy the full backup file 1.1 from the production database to view the parameter file information.
RMAN> list backup of spfile;
Find the latest backup information from the large list information
/Pddata2/oracle/backup/data/ctl_auto/c-3391761643-20150820-011.2 View Control File Information:
RMAN> list backup of controlfile;
Find the
Self-developed Win8-style Android music player application source code (standalone version), win8android
I spent two days in my spare time studying and writing a Win8-style android music player, which implements most of the basic functions. The specific description is as follows:
Basic functions:Note: The Android system version must be later than 2.2 to ensure that the mobile phone is installed with an SD card (some icons are used for QQ music and B
When white noise, want to open another music listen, but 2 voices will mix up, especially noisy,and the market on the player to change the volume is directly changed the system volume, so directly to do a simple player, you can change the volume of the music in the app, so that the sound of music can be turned low, and then quietly Shuwang or listen to music.GitHub found a simple package of MediaPlayer code, and then added some simple features, so it was done.Changing the volume directly in the
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