Manage Memory for Dynamic In-Memory Stores
When you store a dataset in an In-Memory Store for the first time with a <storeto> statement, MashZone NextGen Analytics creates the In-Memory Store in either local memory or in memory managed by a BigMemory server or server array.
If the store is a declared store, the configuration added to Business Analytics when the store was declared defines where the store may be kept in memory.
For dynamic stores, the In-Memory Store store is created in local memory by default. You can configure the store to allow a BigMemory server to keep the store in memory in the BigMemory server or server array using:
useTSA = "true" on the
<storeto> statement in the mashup that creates this
In-Memory Store. For example:
...
<storeto useTSA="true" cache='myEvents' key='#unique' variable='theseEvents' />
...
Configuration in the
dynamiccache.xml file in the
webapps-home/presto/WEB-INF/classes folder. You can use this configuration file to define properties for all
In-Memory Stores created dynamically by
Business Analytics.
Include the connection information to the BigMemory Server that manages memory for In-Memory Stores. For example:
<ehcache name="dynamiccache" overflowToOffHeap="true"
maxBytesLocalHeap="1G">
<terracottaConfig url="localhost:9510" /></ehcache>
