Distributed Map (distributedMap)

Distributed map configuration for a local cache.

Attribute name Data type Default value Description
cacheProviderName string default Specifies the name of an alternate cache provider.
highThreshold int

Minimum: -1

Maximum: 100

-1 Specifies when the memory cache eviction policy starts. The threshold is expressed in terms of the percentage of the memory cache size in megabytes (MB).
id string   A unique configuration ID.
jndiName string ${id} JNDI name for a cache instance.
libraryRef A reference to top level library element (string).   Specifies a reference to a shared library.
lowThreshold int

Minimum: -1

Maximum: 100

-1 Specifies when the memory cache eviction policy ends. The threshold is expressed in terms of the percentage of the memory cache size in megabytes (MB).
memorySizeInEntries int

Minimum: 0

2000 Specifies a positive integer that defines the maximum number of entries that the cache can hold. Values are usually in the thousands. The minimum value is 100, with no set maximum value. The default value is 2000.
memorySizeInMB int

Minimum: -1

-1 Specifies a value for the maximum memory cache size in megabytes (MB).
cacheGroup
Description: Specifies sets of external caches that are controlled by WebSphere(R) Application Server on servers such as IBM(R) WebSphere(R) Edge Server and IBM(R) HTTP Server.
Required: false
Data type:
Attribute name Data type Default value Description
name string   Specifies a unique name for the external cache group. The external cache group name must match the ExternalCache property that is defined in the servlet or Java(TM) Server Pages (JSP) cachespec.xml file.
cacheGroup > member
Description: Members of an external cache group that are controlled by WebSphere Application Server.
Required: false
Data type:
Attribute name Data type Default value Description
host string   Fully qualified host name
port int

Minimum: 0

  Port.
cacheGroup > member > adapterBeanName
Description: Specifies the name of a class, which is located on the WebSphere Application Server class path, of the adapter between WebSphere Application Server and this external cache.
Required: false
Data type: string
diskCache
Description: Enable disk offload to specify that when the cache is full, cache entries are removed from the cache and saved to disk. The location is a fully-qualified directory location that is used by the disk offload function. The Flush to Disk on Stop option specifies that when the server stops, the contents of the memory cache are moved to disk.
Required: false
Data type:
Attribute name Data type Default value Description
evictionPolicy
  • RANDOM
  • SIZE
RANDOM Specifies the eviction algorithm and thresholds that the disk cache uses to evict entries. When the disk size reaches a high threshold limit, the disk cache garbage collector wakes up and evicts randomly-selected (Random) or the largest (Size) entries on the disk until the disk size reaches a low threshold limit.
RANDOM
Random
SIZE
Size
flushToDiskOnStopEnabled boolean false Set this value to true to have objects that are cached in memory saved to disk when the server stops. This value is ignored if Enable disk offload is set to false.
highThreshold int

Minimum: 0

Maximum: 100

80 Specifies when the eviction policy starts.
location Path to a directory   Specifies a directory to use for disk offload.
lowThreshold int

Minimum: 0

Maximum: 100

70 Specifies when the eviction policy ends.
sizeInEntries int

Minimum: 0

100000 Specifies a value for the maximum disk cache size, in number of entries.
sizeInGB int

Minimum: 3

3 Specifies a value for the maximum disk cache size, in gigabytes (GB).
library
Description: Specifies a reference to a shared library.
Required: false
Data type:
Attribute name Data type Default value Description
apiTypeVisibility string spec,ibm-api,api The types of API package this library's class loader will be able to see, as a comma-separated list of any combination of the following: spec, ibm-api, api, third-party.
description string   Description of shared library for administrators
filesetRef List of references to top level fileset elements (comma-separated string).   Id of referenced Fileset
name string   Name of shared library for administrators
library > file
Description: Id of referenced File
Required: false
Data type:
Attribute name Data type Default value Description
id string   A unique configuration ID.
name Path to a file   Fully qualified filename
library > fileset
Description: Id of referenced Fileset
Required: false
Data type:
Attribute name Data type Default value Description
caseSensitive boolean true Boolean to indicate whether or not the search should be case sensitive (default: true).
dir Path to a directory ${server.config.dir} The base directory to search for files.
excludes string   The comma or space separated list of file name patterns to exclude from the search results, by default no files are excluded.
id string   A unique configuration ID.
includes string * The comma or space separated list of file name patterns to include in the search results (default: *).
scanInterval A period of time with millisecond precision 0 Scanning interval to check the fileset for changes as a long with a time unit suffix h-hour, m-minute, s-second, ms-millisecond (e.g. 2ms or 5s). Disabled (scanInterval=0) by default. Specify a positive integer followed by a unit of time, which can be hours (h), minutes (m), seconds (s), or milliseconds (ms). For example, specify 500 milliseconds as 500ms. You can include multiple values in a single entry. For example, 1s500ms is equivalent to 1.5 seconds.
library > folder
Description: Id of referenced folder
Required: false
Data type:
Attribute name Data type Default value Description
dir Path to a directory   Directory or folder to be included in the library classpath for locating resource files
id string   A unique configuration ID.

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