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Johan

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  • Creating Slave Cluster ( Cluster 2 Cluster replication)

    Note:  Cluster 2 cluster replication using PXC requires that server_id and binlog settings are identical on all nodes of the slave cluster. You can achieve this by creating a slave config template:...

  • Older ClusterControl Releases

    Changes in ClusterControl v1.5.1 2018-04-09 clustercontrol-controller-1.5.1-2467  Monitoring: SSH Optimizations to reduce the number of SSH connections on remote nodes. Monitoring: CPU temperature...

  • RRDTOOL - Graphs are missing or RRDTOOL not installed

    THIS ARTICLE IS DEPRECATED! RRDTOOL NO LONGER APPLIES TO CLUSTERCONTROL. This article describes how to resolve problems with graphs: Verify that 'rrdtool' is installed by running from a terminal o...

  • Installation on an existing Cluster

    If you have not used the Configurator to setup your cluster you can still install ClusterControl on your existing database cluster. Make sure the database cluster is running in full capacity prior ...

  • Firewall - ports

    This article describes the ports that needs to be opened in the firewall for Galera, MySQL Cluster, Replication, and HAProxy. ClusterControl Server The ClusterControl server should open: ICMP (pin...

  • Upgrade to ClusterControl 1.1.24 (recommended)

    Please follow these upgrade instructions in our Administration Guide:https://severalnines.com/docs/administration.html#upgrading-clustercontrol [DEPRECATED - DON'T READ BELOW] This article describe...

  • CMON 1.4.1 released - upgrade instructions

    Please follow these upgrade instructions in our Administration Guide:https://severalnines.com/docs/administration.html#upgrading-clustercontrol   [DEPRECATED - DON'T READ BELOW] CMON 1.4. has been ...

  • Error reporting

    You can use the s9s_error_reporter tool to generate error reports, and then attach the error report to the Support Ticket.Syntax: s9s_error_reporter -i <CLUSTER_ID> Where <CLUSTER_ID> is the ID of ...

  • InnoDB and NDB Performance Optimization

    This article gives some general guidelines on performance tuning. It can be a huge subject, but there are some basics to consider that will take you a very long way. The last paragraph covers MySQL...

  • Troubleshooting checklist

    If you have problems to run deploy.sh this may be helpful to nail down the issues: Check 's9s_deploy.log' (located in your HOME folder of the user you are install as, e.g. /home/<myusername>/s9s...