Use this page to configure and manage the dynamic cache service settings.
To view this administrative console page, click Servers > Application servers > server_name > Container services > Dynamic cache service.
Specifies whether the dynamic cache is enabled when the server starts.
Specifies a positive integer as the value for the maximum number of entries that the cache holds.
Enter a cache size value in this field that is between the range of 100 through 200,000.
Specifies the default priority for cache entries, determining how long an entry stays in a full cache.
Default | 1 |
Range | 1 to 255 |
Specifies whether disk offload is enabled.
By default, the dynamic cache maintains the number of entries that are configured in memory. If new entries are created while the cache is full, the priorities that are configured for each cache entry, and a least recently used algorithm, are used to remove entries from the cache. In addition to having a cache entry removed from memory when the cache is full, you can enable disk offload to have a cache entry copied to the file system (the location is configurable). Later, if that cache entry is needed, it is moved back to memory from the file system.
Specifies the location on the disk to save cache entries when disk offload is enabled.
If disk offload location is not specified, the default location, ${WAS_TEMP_DIR}/node/server name/_dynacache/cache JNDI name is used. If disk offload location is specified, the node, server name, and cache instance name are appended. For example, ${USER_INSTALL_ROOT}/diskoffload generates the location as ${USER_INSTALL_ROOT}/diskoffload/node/server name/cache JNDI name. This value is ignored if disk offload is not enabled.
Specifies if in-memory cached objects are saved to disk when the server is stopped. This value is ignored if Enable disk offload is not selected.
Default | false |
Use cache replication to have cache entries copied to multiple application servers that are configured in the same replication domain.
Specifies a replication domain from which your data is replicated.
Choose from any replication domains that have been defined. If there are no replication domains listed, you must create one during cluster creation or manually in the administrative console by clicking Environment > Internal replication domains > New. The replication domain you choose to use with the dynamic cache service must be using a Full group replica. Do not share replication domains between replication consumers. Dynamic cache should use a different replication domain from session manager or stateful session beans.
Specifies the global sharing policy for this application server.
Specifies the time, in seconds, to wait before pushing new or modified cache entries to other servers.
If you set this property value of 1 or greater, the
application server pushes all cache entries that are created or modified
during the time period to other servers. If you set the property to
0 or a negative value, the application server converts the property
value to the default value, which is 1.