Cloudera Manager production cluster upgrade process __cloudera

1. Save the RPM package and the necessary dependent files to Linux according to the directory structure.

Download URL: e-primary.cloudera.com/cm5/redhat/6/x86_64/cm/5.9.0/

All in Node0.

Only agents and daemons are deposited in the node1-3.

Parcel incoming Linux/opt/cloudera/parcel-repo, change permissions 755.

2. Backup

Http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cm_ag_db_for_cm_upgrades.html Upgrade Database Considerations

Http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cm_ag_backup_dbs.html#xd_ 583C10BFDBD326BA--6EED2FB8-14349D04BEE--7E98 Backup Database

3. Stop the cluster and stop the service.

Stop Cloudera Manager Serve

sudo service cloudera-scm-server stop

Stop embedded Database

sudo service cloudera-scm-server-db stop

Stop the agent on all nodes

sudo service cloudera-scm-agent stop

4. Upgrade cm on each host. To use the command:

sudo yum clean all

Sudoyum--nogpgcheck localupdate cloudera-scm-*

Law II: Another Way "need to implement change local repo source"--(/etc/yum.repo.d/cloudera-manager.repo)

sudo yum clean all

sudo yum upgrade cloudera-*

5. Check the installation of the RPM package.

Rpm-qa | grep Cloudera

"If you are using an add-on package for embedded databases and plug-ins, you may also see a cloudera-manager-server-db-2 entry, depending on the software previously installed in the server host." If the Cloudera-manager-server-db-2 package is installed and you do not intend to use an embedded database, you can delete the package. 】

6. Start Http:service httpd start

Start Cloudera Manager Server

If you are using the Cloudera Manager's embedded PostgreSQL database, start the database:

sudo service cloudera-scm-server-db start

Start Cloudera Manager Server:

sudo service cloudera-scm-server start

7. Start the NODE0 agent

sudo service cloudera-scm-agent start

8. Open the Cloudera Manager Admin Console for 4 host upgrades.

Select: Rerun host Upgrade Wizard

Agent Upgrades:

9. Upgrade CDH.

Http://www.cloudera.com/content/www/zh-CN/documentation/enterprise/5-3-x/topics/cm_mc_upgrade_to_cdh52_using_parcels.html

Additional:

Backup:

1. Built-in database

Cd/etc/cloudera-scm-server

Configuration file location for embedded database PostgreSQL:

/var/lib/cloudera-scm-server-db

2.Namenode Backup

3.Hbase Backup (You can use no backup and its metadata exists in HDFs):

Hbaseshell

List_snapshots List Snapshots

Snapshot ' myTable ', ' myTableSnapshot-122112 ' Build a snapshot

Hadoop fs-ls/hbase/.hbase-snapshot List Snapshots

Backup snapshots:

Hadoop FS-CP <src><dst>

Permissions

Hadoop Fs-chmod 777/blogsnap

4.mysql Backup.