In fact, using Cygwin to simulate a Linux environment to run Hadoop is very easy, and simply configure it to run a stand-alone Hadoop.
Here, the more critical is Cygwin installation, in the choice of installation must be installed OpenSSH, otherwise will not be successful, the following simple Cygwin installation and configuration:
download installation of CygwinFirst click Http://cygwin.com/se
One. Stand-alone deployment startup
1. Directly download the relevant Mongodb_linux installation package, to the Linux environment, decompression can be.
2. Start MongoDB/data/program/mongo/mongodb-linux-x86_64-2.6.6/bin/mongod--port 8050--fork--dbpath=/data/program/mongo/data/-- Logpath=/data/program/mongo/log/mongodb.log--logappend./mongod--port 27017--fork--dbpath=/home/wuly/mongo/data/--logpath=/home/wu
does, start the server, then issue the following commands:/usr/local/mysql/bin/mysqladmin-u root password ' New-pass Word '/usr/local/mysql/bin/mysqladmin-u root-h localhost.localdomain password ' new-password ' Alternatively you can run: /usr/local/mysql/bin/mysql_secure_installationwhich would also give you the option of removing the testdatabases and anon Ymous user created by default. This isstrongly recommended for production servers. SEE the Manual for more instructions. You can start t
Download the relevant installation files for MONGODB based on the operating system firstDownload and upload to Linux, unzipRename the extracted folder to the monggodb4.0.1 command MVConfigure the necessary folder Mgdata store the running data, mglog the log, Mgbin store the boot file, create bin convenient copy to store Mongodb4.0.1/bin/mongod fileCreate Mongodb.log under Mglog (not created automatically according to the path generated by the configuration file)To create a MongoDB configuration
A command issued by the implementationREDIS.C, you can see the implementation of rediscommandtable[], listing all supported commands. Most of the incoming parameters are redisclient *c, and when a Redis command is issued, the call flow is as followsIn the createclient will assemble the next client, which will call Selectdb () to select the database, and the database stores a dictionary structure dict *dict, the key in this dict is the key to execute the Redis command, the value is the Redis obje
within the database, and insert the data Drop database if exists Yplbeyond;
Create database Yplbeyond;
Use Yplbeyond;
CREATE TABLE users (
ID int (3) auto_increment NOT NULL primary key,
uid char (a) not NULL,
pwd char (a) not nul L, Realname char (TEN) NOT NULL, phone char (TEN) NOT NULL,
Mail char (+) NOT NULL,
date datetime null
) engine=ndb;;
Insert into users values (' ', ' Renmin University ', ' rucedu ', ' Lizi ', ' 00000000 ', ' [email protected] ', ');
select * from Users;
Zookeeper (Port 2181)http://mirror.bit.edu.cn/apache/zookeeper/Extract to/usr/local directory>TAR-ZXVF zookeeper-3.4.12.tar.gz-c/usr/local/>cd/usr/local/zookeeper-3.4.12/Modifying a configuration file>CD conf>CP zoo_sample.cfg zoo.cfg>vim zoo.cfg Change Configuration# of milliseconds of each tickticktime= -# The number of ticks that the initial # synchronization phase can takeinitlimit=Ten# The number of ticks that can pass between # Sending a request and getting an acknowledgementsynclimit=5# T
website to download, unzip the OPENTSDB installation files, and Extract files:TAR-XVF opentsdb-2.3.1.tar.gz-c/usr/local② into OPENTSDB:CD opentsdb-2.3.1③ execution:./build.shA build folder is generated④ execution: Cp-r third_party BuildPut Third_party files in the build folder⑤ execute again:./build.sh⑥ into the build directory: CD BuildExecution: CP.. /src/opentsdb.conf./⑦ Modify the configuration file: (Of course, the port can be defined by itself, but the directory must be correct)Tsd.networ
Tform3.button2click (Sender:tobject);BeginSelf. Clientdataset1.insertrecord ([111,2,3, ' aaaaa ', ' CCCC ']);EndProcedure Tform3.button3click (Sender:tobject);var a,b,c:string; I,j,k:integer;BeginSelf. Clientdataset1.first;I:=self. clientdataset1.fieldvalues[' id '];ShowMessage (IntToStr (i));EndEnd.Summary of the usage of Clientdataset in Delphi2014-06-24 20:48 2081 People read comments (0) favorite reports Summary of the usage of Clientdataset in DelphiBlog Category:
Delphi
Th
operations are in the/data/zookeeper directory.First, stand-alone mode1. Create a new directory Zookeeper_single and copy the downloaded zookeeper-3.4.9.tar.gz into the directory.2. Unzip the zookeeper.TAR–ZXVF zookeeper-3.4.9.tar.gz3. Create a new Data,logs two folder under the zookeeper-3.4.9 directory.4. Enter the zookeeper-3.4.9/conf directory and change the zoo_sample.cfg file to Zoo.cfgCP Zoo_sample.
/hadoop/hadoop-env.shExecute the following command to Open the edit window for the filesudo gedit/usr/local/hadoop/etc/hadoop/hadoop-env.shLocate the Java_home variable and modify the variable as followsExport JAVA_HOME=/USR/LIB/JVM/JAVA-7-OPENJDK-AMD64The modified hadoop-env.sh file resembles the following :Six,WordCount TestThe standalone mode installation is complete, and the following is done by executing the Hadoop self-wordcount to verify that the installation was successful:Create the inp
be a communication errorSupervisor.slots.ports indicates the number of slots for the supervisor nodeThe Nimbus server is set up on Node1 and each creates a corresponding Workdir folder. Ui.port changed here to 8088, the default is 8080, in order to avoid conflicts with other Web services. Supervisor.slots.ports: For each Supervisor worker node, you need to configure the number of workers that the worker node can run. Each worker occupies a separate port for receiving messages, and the configura
Remember:
Stores the Newd object in a smart pointer in a separate statement. If you do not, once an exception is thrown, it is possible to cause an imperceptible resource leak.
intPriority ();voidProcesswidget (std::tr1::shared_ptrintPriority );//compilation error Because the shared_ptr constructor is a explicit constructor and cannot be implicitly convertedProcesswidget (NewWidget, priority ());//the compilation is correct, but there is a potential problem. //before calling Proces
I also met with all the players the same problem, I am win7 64-bit system, playing all the stand-alone game on both sides have black bars, modified the registry does not use.
Later, a problem was found, which also modifies the value of the registry scaling.
Generally on the web search results are: The Start menu in search files and programs to play regedit into the registry. then expand. HKEY_LOCAL_MACHIN
At the beginning of November, we learned about Ubuntu 12.04 's way of building a Hadoop cluster environment, and today we'll look at how Ubuntu12.04 builds Hadoop in a stand-alone environment.
A. You want to install Ubuntu this step is omitted;
Two. Create a Hadoop user group and user under Ubuntu;
1. Create a Hadoop user group:
sudo addgroup Hadoop
As shown in figure:
2. Create a H
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