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PI53143: DOC: CONFIGURING PORTLET ENTITY CACHES FOR MULTIPLE LINES OF PRODUCTION

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APAR status

  • Closed as documentation error.

Error description

  • AFFECTED URLs:
    
    V8.5:
    https://www-01.ibm.com/support/knowledgecenter/SSHRKX_8.5
    .0/mp/plan/db_domains_shared.dita
    
    V8:
    http://www-01.ibm.com/support/knowledgecenter/SSHRKX_8.0
    .0/config/db_plan_domains.dita?lang=en
    
    V7:
    http://www-10.lotus.com/ldd/portalwiki.nsf/xpDocViewer
    .xsp?lookupName=IBM+WebSphere+Portal+7+Product+Documentation#act
    ion=openDocument&res_title=Shared_database_domains_wp7&content=p
    dcontent
    
    Configuring portlet entity caches for multiple lines of
    production:
    
    If you plan to use multiple lines of production, you may need to
    configure Portal cache settings. That is the case if Portal
    users will customize portlets to change their personal portlet
    preferences:
    Since Portal caches portlet entities, portal preference changes
    created on a first line of production may not become visible on
    the second line of production as long as the cache is not
    refreshed.
    You can configure the lifetime of the corresponding Portal
    caches "com.ibm.wps.pe.portletentity" and
    "com.ibm.wps.pe.portletentitycounter".
    Both caches are accessed many times during Portal request
    processing. It is important that the most relevant portlet
    entities are cached. Disabling these caches will degrade Portal
    performance.
    You should therefore choose a cache lifetime which balances your
    need for data coherence between lines of production and your
    need for Portal performance.
    To define the cache lifetime, configure the following properties
    in the CacheManagerService (http://www-01.ibm
    .com/support/knowledgecenter/SSHRKX_8.0
    .0/admin/srvcfgref_cach_mgr.dita) :
    cacheinstance.com.ibm.wps.pe.portletentity.lifetime=300
    cacheinstance.com.ibm.wps.pe.portletentitycounter.lifetime=300
    This defines a cache lifetime of 300 seconds. You may choose
    another lifetime if required. The cache lifetime should be at
    least 5, to allow portlet entities to be cached for one request.
    The WebSphere Portal and Web Content Manager Performance Tuning
    Guide provides more information about caches.
    

Local fix

  • Refer to the above.
    

Problem summary

  • This is planned to be changed in the product documentation.
    

Problem conclusion

  • This is planned to be changed in the product documentation.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI53143

  • Reported component name

    WEBSPHERE PORTA

  • Reported component ID

    5724E7600

  • Reported release

    800

  • Status

    CLOSED DOC

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-11-25

  • Closed date

    2016-02-11

  • Last modified date

    2016-02-11

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

[{"Business Unit":{"code":"BU048","label":"IBM Software"}, "Product":{"code":"SSHRKX","label":"WebSphere Portal"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Edition":""}]

Document Information

Modified date:
11 February 2016