cloudera cdh

Original address: Http://blog.selfup.cn/1631.html?utm_source=tuicoolutm_medium=referral Spit Groove Recently "idle" to have nothing to do, through the CM to vcores use situation to look at a glance, found that no matter how many tasks in the cluster running, the allocated vcores will never exceed 120. The available vcores for the cluster are 360 (15 machines x24 virtual cores). That's equivalent to 1/3 of CPU resources, and as a semi-obsessive-compulsive disorder, this is something that can nev

Recently, a Hadoop cluster was installed, so the HA,CDH4 that configured HDFS supported the quorum-based storage and shared storage using NFS two HA scenarios, while CDH5 only supported the first scenario, the Qjm ha scenario. About the installation deployment process for Hadoop clusters You can refer to the process of installing CDH Hadoop clusters using Yum or manually installing Hadoop clusters. Cluster Planning I have installed a total of three no

Arrogant data room environmental monitoring System after the concept was proposed, which company received the most attention? Not the traditional IT industry giants, nor the fast-rising internet companies, but Cloudera. Those who believe that the real big data in the enterprise should know this company. For just 7 years, Cloudera has become the most important member of the Hadoop ecosystem, both in commerci

Encounter a problem, because the default is to install CDH System/var/log directory, because it is a virtual instance, the system disk smaller only 50G, is the use of the system cm will be alerted to the alarm log directory space is not enough, if the script is deleted periodically, although it can solve the current problem, but not a good way. The other is to directly modify the configuration file, all the/var/log/* manually changed to/home/var/log/*

Cloudera cdh4 has three installation methods: 1. Automatic Installation through cloudera Manager (only 64-bit Linux operating systems are supported ); 2. Use the yum command to manually install the package; 3. Manually install the tarball package; I personally recommend that you try either method 1 or 2. You should first have a clear understanding of the hadoop architecture, built-in components, and configu

Original address: http://www.cnblogs.com/qiaoyihang/p/6995146.html1. Download Source: http://archive-primary.cloudera.com/cdh5/cdh/5/2. Prepare the Environment for compilationA. Install MavenB, Installation Protobuffer./configure--prefix=/usr/local/protobufNote the dependency packages required to install the compilationsudo yum install gcc-c++sudo yum-y install CMakesudo yum-y install zlibsudo yum-y install Openssl-develOld process:Config > Make >make

Tags: CDH mysql5.7 binarycdh-cdh5.8.3 offline installation--mysql5.7 binary deployment1. Check whether the system has installed MySQL, need to uninstall clean#rpm-qa|grep-i MySQLMysql-server-5.1.71-1.el6.x86_64Mysql-5.1.71-1.el6.x86_64Mysql-devel-5.1.71-1.el6.x86_64Qt-mysql-4.6.2-26.el6_4.x86_64Mysql-libs-5.1.71-1.el6.x86_64Perl-dbd-mysql-4.013-3.el6.x86_64#rpm-E mysql-server-5.1.71-1.el6.x86_64--nodeps#rpm-E mysql-5.1.71-1.el6.x86_64--nodeps#rpm-E my

Cloudera impala is an engine that runs distributed queries on HDFS and hbase.This source is a snapshot of our internal development version. We regularly update the version.This readme document describes how to use this source to build cloudera Impala. For more information, see: Https://ccp.cloudera.com/display/IMPALA10BETADOC/Cloudera+Impala+1.0+Beta+Documentat

I. risks are classified into internal and externalFirst, internal:During the deployment of CDH Big Data clusters, users named after services are automatically created,Username (login_name): Password location (passwd): User ID (UID): User Group ID (GID): annotation description (users): Home directory ): log on to Shell)CAT/etc/shadowThe format of the second column in the shadow file. It is the encrypted password. This column is "!! ", That is ":!! : ",

We know that Namenode's single-machine failure is cumbersome, and CDH offers high-availability options.The operation is as follows:Click on "HDFS"Select NamenodeClick "Action" and select:Set your own name.Click "Continue"Click "Continue"This keeps the default and then continues with the problemReturn, write a valueGo onIndicates that the operation is being processed,Start successfully!Go back and look at the Overview interface:You can see that Seconda

."s/eth1/eth0/g"$net _rule_fileElseNew_mac_str=$(sed-n-e'/eth0/p'$net _rule_file) #new_mac_1=${NEW_MAC_STR: -: -} New_mac=$(Echo$new _mac_str|awk-F','{'Print $4'}|awk-F'=='{'Print $'}|sed 's/\ "//g') Echo "Done 70-persistent-net.rules file!"fi#===================================#将新的网络配置入写网卡文件, restart the networkif(Cat$net _conf_file|grep$netmask _conf); Then Echo "Done/etc/sysconfig/network-scripts/ifcfg-eth0"elif[!-N" $"] ; Then Echo "You had not input a IP address!"Else sed-I."/$old _ma

1. Configure the yum SourceLs-L/dev | grep CDMkdir/mnt/CDROMMount/dev/CDROM/mnt/CDROMCD/etc/yum. Repos. dBack up and delete other Yum sourcesVI media. Repo[Rh6-media] Name = rh6-mediaautorefresh = 0 baseurl = file: // MNT/CDROM/gpgcheck = 0 enabled = 1Yum clean allYum makecacheIi. Install KerberosRefer to another article:Add an RPM package: rpm-IVH krb5-server-ldap-1.10.3-65.el6.x86_64.rpm3. Install LDAPYum install OpenLDAP openldap-servers openldap-clients openldap-devel compat-OpenLDAPInstall

Error when executing hive count query:Error:java Heap SpaceThe solution is set io.sort.mb=10;Error when executing Hadoop exeample, also Java heap space problemDiagnostic Messages for this Task:Error:java Heap SpaceFailed:execution Error, return code 2 from Org.apache.hadoop.hive.ql.exec.mr.MapRedTaskMapReduce Jobs Launched:Stage-stage-1: map:1 reduce:1 hdfs read:0 HDFs write:0 FAILTotal MapReduce CPU time spent:0 msecHive execution hql prompt error Error:java heap spaceJava Heap Space

Services:haddoop components that can be deployed on cluster, such as Hdfs,yarn,hbase.Roles: When the service is configured, it is created by Cloudera Manager. For example, Namenode is a role of the HDFs service.Role group: The management of role can divide the same category of roles (such as datanode) into different role groups. Each role group can have its own series of configurations.Role Instance: A single instance (which can be considered a proces

Clouderacloudera Company mainly provides Apache Hadoop Development Engineer Certification (Cloudera certifieddeveloper for Apache Hadoop, CCDH) and ApacheFor more information about the Hadoop Management Engineer certification (Cloudera certifiedadministrator for Apache Hadoop, Ccah), please refer to the Cloudera company's official website. The Hortonworkshortonwo

configuring CDH and Managing servicesTuning of HDFs before closing DatanodeRole requirements: Configurator, Cluster Administrator, full Administratorwhen a datanode is closed, Namenode ensures that each block in each Datanode is still available based on the replication factor (the replication factor) across the cluster. This process involves the block duplication of small batches between datanode. In this case, a datanode has thousands of blocks, and

I. Installation PROTOBUFUbuntu system1 Create a file in the/etc/ld.so.conf.d/directory libprotobuf.conf write the content/usr/local/lib otherwise the error will be reported while loading shared libraries:libprotoc.so .8:cannot Open Shared obj2../configure Makemake Install2. Verify that the installation is completeProtoc--versionLibprotoc 2.5.0Two. Install the Snappy local libraryHttp://www.filewatcher.com/m/snappy-1.1.1.tar.gz.1777992-0.htmlDownload snappy-1.1.1.tar.gzUnzip./configuremake Makein

Install the Kafka component Configuration Kafka Parcel package in the Web page, host--parcel will list the current cluster to configure and assign the parcel package, currently only configured Cdh5,kafka in other parcel packages, so you need to To load parcel separately, then assign to each node within the cluster. Cloudera Official Kafka Component Parcel Package download address is: http://archive.cloudera.com/kafka/parcels/latest/ As usual, downloa

[Author]: KwuConfiguring hive compression based on Cloudera MANAGER5 configures the compression of hive, which is actually the compression of the configuration MapReduce, including the running results and the compression of intermediate results.1. Configuration based on hive command lineSet Hive.enforce.bucketing=true;set Hive.exec.compress.output=true;set Mapred.output.compress=true;set Mapred.output.compression.codec=org.apache.hadoop.io.compress.gz

Turn from http://molisa.iteye.com/blog/1953390 I am mainly adjusting the time zone problem of hue according to this instructionsThere was a problem when using Cloudera hue:1. When using the Sqoop import function, the "Save Run" job does not commit properly due to configuration errors, and there is no prompt on the interface: Sqoop shell with Hue-"Start job--jid * Submit some error prompts And then go to/var/log/sqoop/and check the log.