Edit

Update memory configuration after changes in environment

If you decide to update an environment after applying custom memory configuration to it, your changes will be overwritten and discarded to defaults.

To save your custom configuration, perform the following steps before the update:

1. Acquire information on the changes in memory configurations that you have performed.

2. Copy the existing configuration file to the new one with a custom name. Each memory configuration is defined in a separate .yml file that is automatically placed to the /group_var/topology/ directory, when the installation package is unpacked.

   For example, copy the contents of /group_var/topology/default_large.yml to /group_var/topology/my_topology.yml.

3. In the new configuration file, specify the custom memory parameters.

   ...
   ct:               { ram_mb: 20480 }
   ...
   hazelcast_server: { ram_mb:  3072 }
   ...
   

4. In hosts.yml, specify the new configuration.

   vi hosts.yaml
   

   ...
   topology: my_topology
   ...