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D Y N A C A C H E Wxs

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Transcript

  • 1. DYNACACHE WEBSPHERE EXTREME SCALE
  • 2. Simple Caching Scenarios
    • Benefits
    • 3. Better performance: turbo-charge WAS caching layer via eXtreme Scale “Drop-In” cache with no coding changes
    • 4. Better scalability: Entire eXtreme Scale grid is now your WAS cache
    • 5. More efficient: Single seamless network cache to store data
    Challenges
    • Web applications that use (WAS) Dynamic Cache service and need better performance and scalability of their caching investment
    “Drop-In” extension for Dynamic Cache Service Provider
  • 6. Dynacache-WXS Architecture
  • 7. Why use WXS Dynacache Plugin ?
    • Robust caching solution for expensive operations within a transaction and web page snippets.
    • 8. Leverages the power of a distributed and scalable cache architecture.
    • 9. Larger, more flexible caches -Large Commerce and Portal deployments show significant improvements
    • 10. No DRS - Works across core groups and data centers
    • 11. Lightweight secure mode available for remote grid clients to protect cache contents
    • 12. Highly Available Transactional cache with improved scalability on multi-processor machines
    • 13. Guaranteed QOS - Distributed transactions and locks. Data is replicated and everyone sees the same cache
    • 14. Data Compression - Cache contents can be compressed, which is VERY effective on text snippets, significantly increasing perceived cache size.
  • Use Case: Improve WebSphere Application Server DynaCache applications
    Scenario
    Applications using the DynaCache API can leverage the advanced features and performance improvements of eXtreme Scale
    DynaCache evictors, dependency based invalidation functions, and event listeners can be used on the WXS cache
    DynaCache can keep statistics for each ObjectGrid instance
    Benefits
    DynaCache can keep statistics for each ObjectGrid instance
    Can replicate DynaCache instances across cells
    In-memory compression is supported in distributed cache topologies
    DynaCache plugin enables usage with WebSphere Commerce and Portal servers
    Using this feature, it is possible to replace multiple instances of a disk cache with a single distributed in-memory instance of the cache
    Key decision factors for using WXS for the scenario
    Consider the limitations of eXtreme Scale when using the dynamic cache service: It emulates DynaCache and is not a replacement for it
  • 15. Links & References
    http://webspherecommunity.blogspot.com/2009/09/websphere-extreme-scale-cache-provider.html
    http://wasdynacache.blogspot.com/2009/09/dynacache-marries-websphere-extreme.html
    http://wasdynacache.blogspot.com/2009/09/how-to-configure-dynacache-with-extreme.html
    http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/com.ibm.websphere.nd.multiplatform.doc/info/ae/ae/tdyn_extremescale.html
    http://publib.boulder.ibm.com/infocenter/wxsinfo/v7r0/index.jsp?topic=/com.ibm.websphere.extremescale.over.doc/cxsdynacache.html
    http://www.devwebsphere.com/websphere_extreme_scale/2009/09/replacing-dynacache-disk-offload-with-dynacache-using-ibm-websphere-extreme-scale.html
    http://wasdynacache.blogspot.com/