


HOW TO INSTALL JDBC DRIVER FOR MYSQL UBUNTU FREE
#log_bin should be on a disk with enough free space. # Disabling symbolic-links is recommended to prevent assorted security risks Here is an option file with Cloudera recommended settings: For more information, see The Binary Log. Binary logging provides benefits such as MySQL replication or point-in-time incremental recovery after database Binary logging is not a requirement for Cloudera Manager installations.The hosts need not be reserved exclusivelyįor databases, but each database should be on a separate host.

Use a separate host for each database/host pair. Large clusters (more than 50 hosts) - Do not store more than one database on the same host.If you store five databases on one host (the databases for Cloudera Manager Server, Activity Monitor, Reports Manager, Cloudera Navigator, and Hive metastore), set Allow 100 maximum connections for each database and then add 50 extra connections.Put each database on its own storage volume.Small clusters (fewer than 50 hosts) - You can store more than one database (for example, both the Activity Monitor and Service Monitor) on the same host.Set the max_connections property according to the size of your cluster:.Cloudera recommends that you set the innodb_flush_method property to O_DIRECT. Cloudera Management Service roles need high write throughputīecause they might insert many records in the database. The default settings in the MySQL installations in most distributions use conservative buffer sizes and memory usage.The InnoDB engine is misconfigured.) To check which engine your tables are using, run the following command from the MySQL shell: Cloudera Manager will not start if its tables are configured with the MyISAM engine. To prevent deadlocks, set the isolation level to read committed.
HOW TO INSTALL JDBC DRIVER FOR MYSQL UBUNTU UPDATE
Update my.cnf so that it conforms to the following requirements:.Determine the location of the option file, my.cnf.Move old InnoDB log files /var/lib/mysql/ib_logfile0 and /var/lib/mysql/ib_logfile1 out of /var/lib/mysql/ to a backup location.
