About Changing the Topology

Using the TMC, you can change the topology of a live cluster by reloading an edited Terracotta configuration file.

Note the following restrictions:

Only the removal or addition of <server> blocks in the <servers> or <mirror-group> section of the Terracotta configuration file are allowed.
All servers and clients must load the same configuration file to avoid topology conflicts.

Servers that are part of the same server array but do not share the edited configuration file must have their configuration file edited and reloaded as shown below. Clients that do not load their configuration from the servers must have their configuration files edited to exactly match that of the servers.

Note: Changing the topology of a live cluster will not affect the distribution of data that is already loaded in the TSA. For example, if you added a stripe to a live cluster, the data in the server array would not be redistributed to utilize it. Instead, the new stripe could be used for adding new caches, while the original servers would continue to manage the old caches. Any new data added to the old caches will use the original servers.