cdh hadoop

System Environment Operating system: CentOS 6.5 Cloudera Manager Version: 4.8.1 CDH Version: 4.5.0 Each machine preparation work: Yum-y Groupinstall "Development tools" yum-y install wget Cloudera-manager Zip package Address: http://archive.cloudera.com/cm4/cm/4/cloudera-manager-el6-cm4.8.1_x86_64.tar.gz CDH Download Address: http://archive.cloudera.com/cdh4/parcels/ IMPALA Download Address: http://archiv

Recent projects need to use Oozie Workflow scheduling hivesql, found unable to execute query statements, see: https://community.cloudera.com/t5/Batch-Processing-and-Workflow/ oozie-hive-action-failed-with-wrong-tmp-path/td-p/37443 this, the culprit is CDH bug, need to upgrade the version.Upgrade steps:1. Querying a service on a single nodeService--status-allFound only cloudera-scm-agent, no cloudera-scm-server, indicating that this is not the primary

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

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

upload[Hadoop @ localhost ~] $ Hdfs dfs-lsFound 2 itemsDrwxr-xr-x-hadoop supergroup 0 2018-02-22 23:41 outputDrwxr-xr-x-hadoop supergroup 0 2018-02-23 22:38 upload[Hadoop @ localhost ~] $ Hdfs dfs-ls upload[Hadoop @ localhost ~] $ Hdfs dfs-put my-local.txt upload[

How to do integration, in fact, especially simple, online is actually a tutorial.http://blog.csdn.net/fighting_one_piece/article/details/40667035 look here.I'm using the first integration. When you do, there are a variety of problems. Probably from from 2014.12.17 5 o'clock in the morning to 2014.12.17 night 18 o'clock 30 summed up in fact very simple, but do a long time AH Ah!!! This kind of thing, a fall into your wit. Question 1, need to refer to a variety of packages, these packages to bre

1Create a collection SSH connects remotely to the CDH node that has SOLR installed. Running the solrctl instancedir--generate/solr/test/gx_sh_tl_tgryxx_2015 command generates the default configuration for the Gx_sh_tl_tgryxx_2015 collection. Enter the/solr/test/gx_sh_tl_tgryxx_2015/conf directory, first edit the Schema.xml configuration field information, the specific online search one piece. Solrconfig.xml file in the other The following

/54/41/wKioL1R9Zgrxe0EmAAFxN4JJK7M227.jpg "style=" float: none; "title=" snap4.jpg "alt=" Wkiol1r9zgrxe0emaafxn4jjk7m227.jpg "/>650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/54/41/wKioL1R9ZgqTaU5IAAMQFy65Jcc514.jpg "style=" float: none; "title=" snap5.jpg "alt=" Wkiol1r9zgqtau5iaamqfy65jcc514.jpg "/>8. Start the Cloudera Management ServiceUpgrade CDH to 5.2.11. Before you BeginRun sudo-u HDFs hdfs fsck/and sudo-u HDFs hdfs dfsadmin-report

/init.d/cloudera-scm-agent stopThe other salve nodes are also executed separately:/opt/cm-5.0.0/etc/init.d/cloudera-scm-agent stop3. Then start SCM Server in master, and all nodes start the SCM Agent separately/opt/cm-5.0.0/etc/init.d/cloudera-scm-server start/opt/cm-5.0.0/etc/init.d/cloudera-scm-agent start4, the last Login Cloudera Manage Management page, to see if it can re-detect the CDH version of each host, if unable to detect, you need to click

-* ' check: Rpm-qa ' cloudera-manager-* ' boot cm server database: sudo service cloudera-scm-server-db start Start cm Server:sudo service cloudera-scm-server start login http://172.20.0.83:7180/Install agent upgrade If you upgrade the JDK, the hbase shell will not be available. You need to reboot the CDH after java_home upgrade cm. CDH Upgrade stop cluster all services backup Namenode meta data: Enter Namen

Manager installation process. In addition, some CDH services use databases and is automatically configured to use a default database. If you plan to use the embedded and default databases provided during the Cloudera Manager installation, see installation Path a-automated installation by Cloudera Manager.Although the embedded database is useful for getting started quickly, you can also use your ownPostgreSQL, MySQL, or Oracle databaseFor the Cloudera

Tags: CDH cloudera manager Managed Service Host Monitor Service monitorbackgroundfrom the business development requirements, the big data platform needs to use spark as machine learning, data mining, real-time computing and so on, so decided to use Cloudera Manager5.2.0 version and CDH5. Previously built Cloudera Manager4.8.2 and CDH4, when building the Cloudera Manager5.2.0 version, found that the corresponding service Host monitor and service monito

amount of resources, and the same slot (such as Map slot) is homogeneous, that is, the same slot represents the same amount of resources. The administrator needs to configure a certain number of Map slots and Reduce slots for TaskTracker as needed to limit the number of Map tasks and Reduce tasks executed concurrently on each TaskTracker.The number of slots is configured in the mapred-site.xml on each TaskTracker, as shown in table 9-1.Table 9-1Set the number of slots

Install times wrong: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (site) on project Hadoop-hdfs:an Ant B Uildexception has occured:input file/usr/local/hadoop-2.6.0-stable/hadoop-2.6.0-src/hadoop-hdfs-project/ Hadoop-hdfs/target/findbugsxml.xml

. Computer = CPU + hard disk [hadoop = mapreduce + HDFS] Mapreduce is composed of two functions: map and reduce. They first extract key-value pairs from the map function, and then reduce collects statistics on them. Address planning: 192.168.0.200 hadoop version introduction hadoop version: hadoop-2.0.0-cdh4.7.0.tar.gz

When I deleted a hive table today, I found that the HDFS space was not released. At first I thought it was a problem to delete the table. The results were not found on HDFS, the final result is that the CDH namenode has a file system spam interval setting. The default setting is one day. That is to say, it takes one day to delete the deleted file.Configuration, hoping to help people with the same questions. 650) This. width = 650; "src =" http://s3.51

error log in the corresponding error log on the installation prompt and check the corresponding error logs.Regardless of whether the installation is successful, the. rpmnew file is added to the corresponding/ETC/YUM.REPOS.D directory, and this file is generally linked to the remote warehouse address of the download cm, which is removed after continuing the retry installation.File:///C:/Users/WANGLI~1/AppData/Local/Temp/OICE_F1CC53DF-AFC8-4B3A-B9F7-A2FBB9833C1E.0/msohtmlclip1/01/clip_image028.pn

CDH cm interface has an unreachable situation, view cloudera-scm-server status # Service Cloudera-scm-server Status Cloudera-scm-server dead but PID file exists Hint Cloudera-scm-server dead# Service Cloudera-scm-server Stop# Service Cloudera-scm-server StatusCloudera-scm-server is stopped Delete Cloudera-scm-server.pid# Rm/var/run/cloudera-scm-server.pid Service Cloudera-scm-server-db StartDoes not start properly cloudera-scm-server-dbWaiting fo