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If everyone and I have a few tens of thousands of IP stations, it must be considered the use of virtual host or stand-alone server. I currently have 3 10,000 IP stations, are still used by the virtual host. We all know that the price of a virtual host is cheaper than a stand-alone server, from a cost-saving point of

Oracle ASM replaces storage and hosts:1. In the new host when installing a stand-alone grid, and the database software, you can copy from the source host, and then clone the operation2. Hang the new storage on the old host, set up a new disk group, back up the database to the new disk group with backup copy, andThe new storage is unmapped from the old host,3. Export the old OCR and import the new host,./OCR

transactioncontentiontestextendsconnectionbuilder{private Staticfinalintcontention_level=5;privatestatic finalintTOTAL=20000;privatestaticfinal Numberformatnf=numberformat.getpercentinstance (); publicstatic voidmain (String[]args) throwsException{ nf.setminimumfractiondigits (2); buildpool (); countdownlatchlatch=newcountdownlatch ( Contention_level);Thread[]threads=newThread[CONTENTION_LEVEL]; contentionclient[]clients=newcontentionclient[contention _level];jedisjedis=pool.getresource (); jed

Package com.tz.util.screen;Import Java.io.FileInputStream;Import Java.io.FileOutputStream;Import Java.io.InputStream;Import Java.io.OutputStream;Import Java.net.ServerSocket;Import Java.net.Socket;/*** Image upload* Customer Service side* 1. Service Endpoint* 2. Read the image data from the customer service side* 3. Send data to server via socket output stream* 4. Read the service side feedback information* 5. Close* @author Administrator**/public class Tcppic { public static void Main (string[]

://localhost:8888Step 6. Hello world! Try running a scikit-learn machine learning programDownload a machine Learning example on Scikit-learn's website, such as: HTTP://SCIKIT-LEARN.ORG/STABLE/_DOWNLOADS/PLOT_CV_PREDICT.IPYNBThen run "Jupyter notebook" in the download directory, then the browser opens http://localhost:8888 .You can see the contents of your download directory in the browser, we open the newly downloaded plot_cv_ PREDICT.IPYNB This file link, you can see the contents of the Python

default is 3, should be less than the number of Datanode machine description>property>configuration> 5), configure Mapred-site.xmlAdd the following configuration:configuration>property> name>mapreduce.framework.namename> value>yarnvalue>property>configuration>6), configure Yarn-site.xmlAdd the following configuration:Configuration>Property>Name>yarn.nodemanager.aux-servicesname> value>mapreduce_shufflevalue>property> property> name>yarn.resourcemanager.webapp.addressname> value>${yarn.

1. Create sub-users (to start redis)[Email protected] ~]# Useradd Redis 2. Switch to sub-user environment [email protected] ~]# sudo su–redis 3. upload redis software or wget http://download.redis.io/releases/redis-3.2.6.tar.gz [Email protected] ~]$ rz-yRZ waiting to receive.Starting Zmodem transfer. Pressctrl+c to cancel.Transferring redis-3.2.6.tar.gz ...100% 1508 KB 1508 kb/sec 00:00:01 0 Errors[[email protected] ~]$ lsRedis-3.2.6.tar.gz 4. Unzip the R

Group Chat test Scenario: 10000 users concurrent online, a total of 10,000 groups, each group of 100 group members, 30 group members online, 70 offline. Each user interval 10s toward a group of messages, a total of 100.Group Chat test results: The server receives 1 million message repositories. Forwards 3 million messages to the client. Send 7 million push. TPS 1000; server-side receive traffic: 96.58 MB, Server send traffic: 5.63 GB, Time: 22min.Single Chat test scenario: 60000 users concurrent

The ACDI of the transaction1. atomicity (one transaction either succeeds at the same time and fails at the same time)Bob gave Smith 100 dollars.Important: Atomicity only records the Undo log, which can be rolled back to the previous version.2, consistency (add a lock to the transaction)Core: Can (happen before)3, Isolation (performance for the reason, the destruction of consistency)1. Serialized read-WriteExclusive Lock: (only one transaction has him in a unit of time)Read/write Lock:2, (Repeata

installed.　　2. Install PythonThe newer version of Ubuntu already comes with Python 2.7, no need to install it.Enter Python in the terminal to detect, CTRL + Z exit the python shell　　3. Installing zookeeperZookeeper is a reliable coordination system for large-scale distributed systems. It is mainly used for state synchronization.　　4. Installing ZEROMQ and JZMQDownload from http://download.zeromq.org/from here ZeromqAfter decompression, execute the following command:./autogen.sh. /Configuremakema

=/home/sitapp/rabbitmq/docRe-make install and get an error:/bin/sh:xmlto:command not found/bin/sh:line 2:xmlto:command not foundMake: * * [docs/rabbitmqctl.1.gz] Error 127Install the Xmlto command, yum install-y XmltoRe-make install complete.#5, configuration RABBITMQ:To set the log and message persistence directory:Ln-s/home/sitapp/rabbitmq/sbin/rabbitmq-server/usr/bin/rabbitmq-serverLn-s/home/sitapp/rabbitmq/sbin/rabbitmq-env/usr/bin/rabbitmq-env#6, boot rabbitmq (rabbitmq/sbin directory):./Ra

Hellozookeeper[Root:localhost:2181 (CONNECTED) 4] Get/testHellozookeeper[Root:localhost:2181 (CONNECTED) 5] Delete/test[Root:localhost:2181 (CONNECTED) 6] Get/testNode does not exist:/test[Root:localhost:2181 (CONNECTED) 7] Quit2014-11-19 03:53:50,180 [myID:]-INFO [main:[email protected]]-session:0x149c475d7db0000 closed2014-11-19 03:53:50,182 [myID:]-INFO [main-eventthread:[email protected]]-Eventthread shut downThe single-machine installation configuration is complete. Copyright NOTICE: This

The company's recent spark cluster was migrated from the original standalone to spark on yarn, when migrating related programs, found that the adjustment is still some, the following is a partial shell command submitted in two versions, from the command can see the difference, the difference is mainly spark on Yarn does not work the same way, resulting in a different way of submitting it.The script for the standalone mode is:The script for the Yarn-cluster mode is:One of the problems encountered

For details, see: http://www.guodegang.cn/BBS/archiver/?tid-1691.html There are too many, this comrade is really not easy to collect so much! Deyun club used a stand-alone crosstalk set-up poetry injury the most is the night cold days gaunt man unbearable words and wine reminder sausage three cups of drunk seek incense surprise dream five more cold steamed chicken leaning with tears fans flowers I missed t

Tags: problematic life, no e, no popular streamI don't know whether it is the role of the media, and I find that my thoughts are very popular.Every time you meet, you can't help but get rid of it.They do not want to use morality to kidnap others, but are even more powerless to require that others not use morality to kidnap themselves.This is the reality of this fucking society.For yourself:You cannot ask everyone to look at the problem at the same level as you do, even though you know that some

Cocos2d-x 3.2 Monopoly game project development-stand-alone development end, cocos2d-x Project Development Today, I found a resource image and finished the map of the remaining two levels, including the summer beach. I was looking for a map of the sky garden, but I did not find any good picture after searching for a long time, it is changed to a map of ice and snow. There are basically no major changes in

These days, I have listened to some of the stand-alone crosstalk that Guo Degang said. Like the ugly lady and jiagongchuan. It sounds like a hot scene, and there are a lot of funny baggage, but I always feel that there is nothing to remember.Guo's counterpart crosstalk is also acceptable. He is also funny, talkative, and ironic about some social phenomena. GuoDe gangThe speech speed is quite fast. I alwa

NameNode30070 ResourceManager30231 NodeManager30407 Worker30586 Jps4. Configure Scala, Spark, and Hadoop environment variables to join the path for easy executionVI ~/.BASHRCExport hadoop_home=/users/ysisl/app/hadoop/hadoop-2.6.4Export scala_home=/users/ysisl/app/spark/scala-2.10.4Export spark_home=/users/ysisl/app/spark/spark-1.6.1-bin-hadoop2.6Export path= "${hadoop_home}/bin:${scala_home}/bin:${spark_home}/bin: $PATH"Five. Test run1. Prepare a CSV file, path /users/ysisl/app/hadoop/test.csv2

prepare the Kubernetes/pause imageDocker Pull Docker.io/kubernetes/pauseDocker tag f9d5de079539 gcr.io/google_containers/pause:2.0 this is equivalent to renaming the Docker.io to gcr.io,f9d5de079539 as the image ID (Docker images) that was pulled down.9) Confirm that the k8s is starting successfullyKubectl Get Nodes9 Deployment of Nginx cluster1) Create Nginx podskubectl run Nginx--image=nginx--port=80--replicas=5kubectl get pods 2) Create Nginx-service.yamlapiVersion:v1kind:Servicemetadata:

other address at the beginning is the same, he is not the same), or a look, there is data is we need the address (note that there is no need to change the game data on the data)⑩ casually double-click a MOV instruction data, here 140EC is the second offset value,48d2e010 is the next address to find①① Repeat step ⑧ with the new referral address, the green address is the first address.①② started the base.①③ change the value of this address, and if the money changes, you'll find the right one.Simi