7.5. Configure Distribution Mode (Remote Client-Server Mode)
Distribution mode is a clustered mode in Red Hat JBoss Data Grid. Distribution mode can be added to any cache container using the following procedure:
Procedure 7.1. The distributed-cache
Element
The
distributed-cache
element configures settings for the distributed cache using the following parameters:
Add the Cache Name
Thename
parameter provides a unique identifier for the cache.<cache-container name="clustered" default-cache="default" statistics="true"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" />
Set the Clustered Cache Start Mode
Themode
parameter sets the clustered cache mode. Valid values areSYNC
(synchronous) andASYNC
(asynchronous).<cache-container name="clustered" default-cache="default" statistics="true"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" mode="SYNC" />
Specify Number of Segments
The (optional)segments
parameter specifies the number of hash space segments per cluster. The recommended value for this parameter is ten multiplied by the cluster size and the default value is80
.<cache-container name="clustered" default-cache="default" statistics="true"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" mode="SYNC" segments="20" />
Set the Cache Start Mode
Thestart
parameter specifies whether the cache starts when the server starts up or when it is requested or deployed.<cache-container name="clustered" default-cache="default" statistics="true"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" mode="SYNC" segments="20" start="EAGER"/>
Per-cache Statistics
Ifstatistics
are enabled at the container level, per-cache statistics can be selectively disabled for caches that do not require monitoring by setting thestatistics
attribute tofalse
.<cache-container name="clustered" default-cache="default" statistics="true"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" mode="SYNC" segments="20" start="EAGER" statistics="true"> ... </distributed-cache> </cache-container>
Important
JGroups must be appropriately configured for clustered mode before attempting to load this configuration.
For details about the
cache-container
, locking
, and transaction
elements, see the appropriate chapter.