IBM WebSphere Application ServerTM
Release 7

com.ibm.websphere.pmi.stat
Interface WSDynamicCacheStats


public interface WSDynamicCacheStats

WebSphere Dynamic Cache Stats interface. Dynamic cache stats are structured as follows in the PMI tree:

<server>
|
|__Dynamic Caching+
  |
  |__<Servlet: instance1>
    |__Templates+
      |__<template_1>
      |__<template_2>
    |__Disk+
      |__<Disk Offload Enabled>
  |
  |__<Object: instance2>
    |__Object Cache+
      |__<Counters>

+ indicates logical group

StatDescriptor is used to locate and access particular Stats in the PMI tree.
Example:

  1. StatDescriptor to represent statistics for cache Servlet: instance1 templates group Template_1: new StatDescriptor (new String[] {WSDynamicCacheStats.NAME, "Servlet: instance1", WSDynamicCacheStats.TEMPLATE_GROUP, "Template_1"});
  2. StatDescriptor to represent statistics for cache Servlet: instance1 disk group Disk Offload Enabled: new StatDescriptor (new String[] {WSDynamicCacheStats.NAME, "Servlet: instance1", WSDynamicCacheStats.DISK_GROUP, WSDynamicCacheStats.DISK_OFFLOAD_ENABLED});
  3. StatDescriptor to represent statistics for cache Object: instance2 object cache group Counters: new StatDescriptor (new String[] {WSDynamicCacheStats.NAME, "Object: instance2", WSDynamicCacheStats.OBJECT_GROUP, WSDynamicCacheStats.OBJECT_COUNTERS});

Note: cache instance names are prepended with cache type ("Servlet: " or "Object: ").

See Also:
StatDescriptor

Field Summary
static int ClientRequestCount
          The count of requests for cacheable objects that are generated by applications running on this application server.
static int DependencyIdBasedInvalidationsFromDisk
          The current count of dependency Id based invalidations from disk.
static int DependencyIdsBufferedForDisk
          The current count of dependency ids that are buffered for disk.
static int DependencyIdsOffloadedToDisk
          The current count of dependency ids that are offloaded to disk.
static int DependencyIdsOnDisk
          The current count of dependency ids that are currently on disk.
static java.lang.String DISK_GROUP
          The name of the disk logical group.
static java.lang.String DISK_OFFLOAD_ENABLED
          The name of the disk offload eanble under disk logical group.
static int DistributedRequestCount
          The count of requests for cacheable objects that are generated by cooperating caches in this replication domain.
static int ExplicitDiskInvalidationCount
          The count of explicit invalidations resulting in the removal of an entry from disk.
static int ExplicitInvalidationCount
          The count of explicit invalidations.
static int ExplicitInvalidationsFromDisk
          The count of explicit invalidations resulting in the removal of an entry from disk.
static int ExplicitMemoryInvalidationCount
          The count of explicit invalidations resulting in the removal of an entry from memory.
static int GarbageCollectorInvalidationsFromDisk
          The count of garbage collector invalidations resulting in the removal of entries from disk cache due to high threshold has reached.
static int HitsInMemoryCount
          The count of requests for cacheable objects that are served from memory.
static int HitsOnDisk
          The count of requests for cacheable objects that are served from disk.
static int HitsOnDiskCount
          The count of requests for cacheable objects that are served from disk.
static int InMemoryAndDiskCacheEntryCount
          The current count of used cache entries in memory and disk.
static int InMemoryCacheEntryCount
          The current count of in-memory cache entries.
static int LocalExplicitInvalidationCount
          The count of explicit invalidations generated locally, either programmatically or by a cache policy.
static int LruInvalidationCount
          The count of cache entries that are removed from memory by a Least Recently Used (LRU) algorithm.
static int MaxInMemoryCacheEntryCount
          The maximum number of in-memory cache entries.
static int MissCount
          The count of requests for cacheable objects that were not found in the cache.
static java.lang.String NAME
          The name of the Dynamic Cache performance module.
static java.lang.String OBJECT_CACHE_GROUP
          Deprecated. As of 6.1, this group is no longer created. Use OBJECT_GROUP.
static java.lang.String OBJECT_CACHE_TYPE_PREFIX
          The prefix of the object cache instance.
static java.lang.String OBJECT_COUNTERS
          The name of the object counters under object cache logical group.
static java.lang.String OBJECT_GROUP
          The name of the logical group for object cache.
static int ObjectsOnDisk
          The current count of cache entries that are currently on disk.
static int OverflowInvalidationsFromDisk
          The count of invalidations resulting in the removal of entries from disk cache due to exceeding the disk cache size or disk cache size in GB limit.
static int PendingRemovalFromDisk
          The current count of cache entries that are pending to be removed from disk.
static int RemoteCreationCount
          The count of cache entries that are received from cooperating dynamic caches.
static int RemoteExplicitInvalidationCount
          The count of explicit invalidations received from a cooperating Java virtual machine in this replication domain.
static int RemoteHitCount
          The count of requests for cacheable objects that are served from other Java virtual machines within the replication domain.
static java.lang.String SERVLET_CACHE_GROUP
          Deprecated. As of 6.1, this group is no longer created.
static java.lang.String SERVLET_CACHE_TYPE_PREFIX
          The prefix of the servlet cache instance.
static java.lang.String TEMPLATE_GROUP
          The name of the template logical group.
static int TemplateBasedInvalidationsFromDisk
          The current count of template based invalidations from disk.
static int TemplatesBufferedForDisk
          The current count of templates that are buffered for disk.
static int TemplatesOffloadedToDisk
          The current count of templates that are offloaded to disk.
static int TemplatesOnDisk
          The current count of templates that are currently on disk.
static int TimeoutInvalidationCount
          The count of cache entries that are removed from memory and disk because their timeout has expired.
static int TimeoutInvalidationsFromDisk
          The count of cache entries that are removed from disk because their timeout has expired.
 

Field Detail

NAME

static final java.lang.String NAME
The name of the Dynamic Cache performance module.

See Also:
Constant Field Values

SERVLET_CACHE_GROUP

static final java.lang.String SERVLET_CACHE_GROUP
Deprecated. As of 6.1, this group is no longer created.
The name of the servlet cache logical group.

See Also:
Constant Field Values

OBJECT_CACHE_GROUP

static final java.lang.String OBJECT_CACHE_GROUP
Deprecated. As of 6.1, this group is no longer created. Use OBJECT_GROUP.
The name of the object cache logical group.

See Also:
Constant Field Values

TEMPLATE_GROUP

static final java.lang.String TEMPLATE_GROUP
The name of the template logical group.

See Also:
Constant Field Values

DISK_GROUP

static final java.lang.String DISK_GROUP
The name of the disk logical group.

See Also:
Constant Field Values

DISK_OFFLOAD_ENABLED

static final java.lang.String DISK_OFFLOAD_ENABLED
The name of the disk offload eanble under disk logical group.

See Also:
Constant Field Values

OBJECT_GROUP

static final java.lang.String OBJECT_GROUP
The name of the logical group for object cache.

See Also:
Constant Field Values

OBJECT_COUNTERS

static final java.lang.String OBJECT_COUNTERS
The name of the object counters under object cache logical group.

See Also:
Constant Field Values

SERVLET_CACHE_TYPE_PREFIX

static final java.lang.String SERVLET_CACHE_TYPE_PREFIX
The prefix of the servlet cache instance. The servlet instance names are prepended with this servlet cache type

See Also:
Constant Field Values

OBJECT_CACHE_TYPE_PREFIX

static final java.lang.String OBJECT_CACHE_TYPE_PREFIX
The prefix of the object cache instance. The object instance names are prepended with this object cache type

See Also:
Constant Field Values

MaxInMemoryCacheEntryCount

static final int MaxInMemoryCacheEntryCount
The maximum number of in-memory cache entries. (CountStatistic)

See Also:
Constant Field Values

InMemoryCacheEntryCount

static final int InMemoryCacheEntryCount
The current count of in-memory cache entries. (CountStatistic)

See Also:
Constant Field Values

HitsInMemoryCount

static final int HitsInMemoryCount
The count of requests for cacheable objects that are served from memory. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

HitsOnDiskCount

static final int HitsOnDiskCount
The count of requests for cacheable objects that are served from disk. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

ExplicitInvalidationCount

static final int ExplicitInvalidationCount
The count of explicit invalidations. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

LruInvalidationCount

static final int LruInvalidationCount
The count of cache entries that are removed from memory by a Least Recently Used (LRU) algorithm. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

TimeoutInvalidationCount

static final int TimeoutInvalidationCount
The count of cache entries that are removed from memory and disk because their timeout has expired. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

InMemoryAndDiskCacheEntryCount

static final int InMemoryAndDiskCacheEntryCount
The current count of used cache entries in memory and disk. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

RemoteHitCount

static final int RemoteHitCount
The count of requests for cacheable objects that are served from other Java virtual machines within the replication domain. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

MissCount

static final int MissCount
The count of requests for cacheable objects that were not found in the cache. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

ClientRequestCount

static final int ClientRequestCount
The count of requests for cacheable objects that are generated by applications running on this application server. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

DistributedRequestCount

static final int DistributedRequestCount
The count of requests for cacheable objects that are generated by cooperating caches in this replication domain. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

ExplicitMemoryInvalidationCount

static final int ExplicitMemoryInvalidationCount
The count of explicit invalidations resulting in the removal of an entry from memory. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

ExplicitDiskInvalidationCount

static final int ExplicitDiskInvalidationCount
The count of explicit invalidations resulting in the removal of an entry from disk. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

LocalExplicitInvalidationCount

static final int LocalExplicitInvalidationCount
The count of explicit invalidations generated locally, either programmatically or by a cache policy. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

RemoteExplicitInvalidationCount

static final int RemoteExplicitInvalidationCount
The count of explicit invalidations received from a cooperating Java virtual machine in this replication domain. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

RemoteCreationCount

static final int RemoteCreationCount
The count of cache entries that are received from cooperating dynamic caches. (templates group or object cache group CountStatistic)

See Also:
Constant Field Values

ObjectsOnDisk

static final int ObjectsOnDisk
The current count of cache entries that are currently on disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

HitsOnDisk

static final int HitsOnDisk
The count of requests for cacheable objects that are served from disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

ExplicitInvalidationsFromDisk

static final int ExplicitInvalidationsFromDisk
The count of explicit invalidations resulting in the removal of an entry from disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

TimeoutInvalidationsFromDisk

static final int TimeoutInvalidationsFromDisk
The count of cache entries that are removed from disk because their timeout has expired. (Disk Group CountStatistic)

See Also:
Constant Field Values

PendingRemovalFromDisk

static final int PendingRemovalFromDisk
The current count of cache entries that are pending to be removed from disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

DependencyIdsOnDisk

static final int DependencyIdsOnDisk
The current count of dependency ids that are currently on disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

DependencyIdsBufferedForDisk

static final int DependencyIdsBufferedForDisk
The current count of dependency ids that are buffered for disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

DependencyIdsOffloadedToDisk

static final int DependencyIdsOffloadedToDisk
The current count of dependency ids that are offloaded to disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

DependencyIdBasedInvalidationsFromDisk

static final int DependencyIdBasedInvalidationsFromDisk
The current count of dependency Id based invalidations from disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

TemplatesOnDisk

static final int TemplatesOnDisk
The current count of templates that are currently on disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

TemplatesBufferedForDisk

static final int TemplatesBufferedForDisk
The current count of templates that are buffered for disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

TemplatesOffloadedToDisk

static final int TemplatesOffloadedToDisk
The current count of templates that are offloaded to disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

TemplateBasedInvalidationsFromDisk

static final int TemplateBasedInvalidationsFromDisk
The current count of template based invalidations from disk. (Disk Group CountStatistic)

See Also:
Constant Field Values

GarbageCollectorInvalidationsFromDisk

static final int GarbageCollectorInvalidationsFromDisk
The count of garbage collector invalidations resulting in the removal of entries from disk cache due to high threshold has reached. (Disk Group CountStatistic)

See Also:
Constant Field Values

OverflowInvalidationsFromDisk

static final int OverflowInvalidationsFromDisk
The count of invalidations resulting in the removal of entries from disk cache due to exceeding the disk cache size or disk cache size in GB limit. (Disk Group CountStatistic)

See Also:
Constant Field Values

IBM WebSphere Application ServerTM
Release 7