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Storm run server Some error resolution,

Java.lang.RuntimeException:Returned channel was actually not establishedRestart TestJava.lang.NoSuchMethodError:Org.apache.hadoop.net.NetUtils.getInputStreamStorm runs the server to report this error and is running properly locally. The jar package

UNPV22 RPC Run server prompts cannot register service:RPC:Unable to receive; errno = Connection refused

Running RPC server prompt on my colinux virtual machine: Cannot register service:RPC:Unable to receive; errno = Connection refused, screenshot as follows: The reason is that the Portmap service is not installed and started, so the solution is to

Hadoop exception "cocould only be replicated to 0 nodes, instead of 1" solved

Exception Analysis 1. "cocould only be replicated to 0 nodes, instead of 1" Exception (1) exception description The configuration above is correct and the following steps have been completed: [Root @ localhost hadoop-0.20.0] # bin/hadoop

Hadoop deployment Error

The standalone deployment of hadoop is simple and error-prone, but it has little value and significance for the production environment, but can be quickly used for development. There are many and strange reasons for hadoop deployment errors. For

DFS namenode format causes datenode to be unable to be connected

  Problem Hadoop @ potr134pc26:/usr/local/hadoop/bin $ Rm-R/Usr/local/hadoop-datastore/---- Now there is no HADOOP-DATASTORE folder locallyHadoop @ potr134pc26:/usr/local/hadoop/bin $./hadoop namenode-format10/02/10 16:33:50 info namenode. namenode:

Install and configure php5MySQL5Apache2phpMyAdminZendOptimizer in Linux

I have come up with this configuration tutorial for a long time. I have been busy with internships and my graduation thesis recently. it never takes time. however, many people need this tutorial. so I decided to take a day out. the php environment

Php5MySQL5Apache2phpMyAdminZendOptimizer installation and configuration in Linux _ PHP Tutorial

Install and configure php5MySQL5Apache2phpMyAdminZendOptimizer in Linux. You need to be careful and patient. during the installation process, you will understand this. if it is incorrect, we will criticize it. in this example,

Install and configure php5 MySQL5 Apache2 phpMyAdmin ZendOptimizer in Linux

You need to be careful and patient. During the installation process, you will be able to understand. If the installation is incorrect, you will be criticized.In this example, under red hat

Install and configure php5MySQL5Apache2phpMyAdminZendOptimizer in Linux

I have come up with this configuration tutorial for a long time. I have been busy with internships and my graduation thesis recently. it never takes time. however, many people need this tutorial. so I decided to take a day out. the php environment

Install and configure PhP5 mysql5 apache2 phpMyAdmin zendoptimizer in Linux [Image]

You need to be careful and patient. During the installation process, you will be able to understand. If the installation is incorrect, you will be criticized. In this example, under Red Hat

An error is reported when querying mysql-hive.

Org. apache. hadoop. ipc. RemoteException: java. io. IOException: Filetmphive-roothive_2013-08-15_13-46-55_630_3316993537720067107-mr-100021emptyFilecouldonlybereplicatedto0nodes, insteadof1atorg. apache. hadoop. hdfs. server. namenode. FSNa...

How to install and use CutyCapt in centos

CutyCapt is a screenshot tool.Official website http://cutycapt.sourceforge.net/My main goal is to save the web page as an image in php, and start installing CutyCapt without much nonsense.Yum install epel-release # Dependency installationYum install

Hadoop2.2.0 HDFS currently does not support concurrent append

After multiple clients initiate concurrent append operations on the same file, only the client that was last initiated obtains the append lock. Other clients report the following error: At org. apache. Hadoop. hdfs. server. namenode. FSNamesystem.

Use httpkit to replace Jetty

CompojureIsRingThe upper-Layer Web development framework. In the project generated by lein new compojure my-app, Jetty server is enabled by default and websocket in HTTP-kit is recently used. Therefore, you need to change the server to HTTP-kit. In

Use httpkit to replace jetty and httpkitjetty

Use httpkit to replace jetty and httpkitjetty CompojureIsRingThe upper-Layer web development framework. In the project generated by lein new compojure my-app, jetty server is enabled by default and websocket in http-kit is recently used. Therefore,

Add new hadoop node practices

Now that namenode and datanode1 are available, add the node datanode2 first step: Modify the Host Name of the node to be added hadoop @ datanode1 :~ $ Vimetchostnamedatanode2 Step 2: Modify the host file hadoop @ datanode1 :~ $ Vimetchosts192.168.8.4

Analysis on the principles of long weibo generation (converting html into images)

There are some requirements in daily work. in simple terms, you need to generate images of some content. It is okay to process simple content through PhotoShop, but it is similar to content with tables. it is a waste of time to process it through

How to find a good JavaScript unit test tool

Let's look at the status of JavaScript unit testing and the testing tools. 1.JsUnit We are already using it as our Unit test tool. Advantage: Can be called by ant build file; Start the browser to run the test case; Eclipse plug-in support;

Brief analysis on the principle of long micro-Boshengchen (converting HTML into pictures)

There are some requirements in peacetime, and in simple terms, you need to generate some images. Simple content can be processed by Photoshop, but similar to content with tables and so on, it's a waste of time to work with Photoshop every time.

Highlights of hadoop pseudo-distributed configuration problems

Question 1: cocould only be replicated to 0 nodes, instead of 1 2013-06-24 11:39:32, 383 error Org. apache. hadoop. security. usergroupinformation: priviledgedactionexception as: zqgame cause: Java. io. ioexception:

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