Coherence 12.1.3 hidden gems
- 2. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | 12.1.3 Hidden Gems Harvey Raja Consulting Member Technical Staff Fusion Middleware, Coherence Month 07, 2014 Oracle Confidential – Internal/Restricted/Highly Restricted
- 3. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. Note: The speaker notes for this slide include instructions for when to use Safe Harbor Statement slides. Tip! Remember to remove this text box. Oracle Confidential – Internal/Restricted/Highly Restricted 3
- 4. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Program Agenda Deserialization Accelerator Asynchronous Index Build Guardian stats Project Shrapnel Asynchronous EntryProcessors Pop the hood… 1 2 3 4 5 Oracle Confidential – Internal/Restricted/Highly Restricted 4 6
- 5. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Deserialization Accelerator • Anybody want ObjectLocalBackingMap? • Hold deserialized value in MapIndex • ReflectionExtractor queries (BinaryEntry.getValue) will use deserialized value • Optimized MapIndex implementation Oracle Confidential – Internal/Restricted/Highly Restricted 5
- 6. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Asynchronous Index Maintenance • Partition Transfer blocks access to the partition for the window of transfer • Pre 12.1.3 this included updated MapIndex with the newly owned entries • 12.1.3 MapIndex is updated asynchronously by a thread in the pool • Query request waits until index update job completes Oracle Confidential – Internal/Restricted/Highly Restricted 6
- 7. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Oracle Confidential – Internal/Restricted/Highly Restricted 7 C Build Index NamedCache.get(K) Synchronous Index Update
- 8. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Oracle Confidential – Internal/Restricted/Highly Restricted 8 Asynchronous Index Update C Build Index NamedCache.get(K)
- 9. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Guardian Improvements • Public Guardian • JMX Statistics: Oracle Confidential – Internal/Restricted/Highly Restricted 9
- 10. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Shrapnel • PartialResultAggregator – Single invocation of aggregatePartialResults per member • NamedCache.putAll/invokeAll -> CacheStore.storeAll • Deadlock avoidance – Always were able to detect – Tried to prevent – Now avoid Oracle Confidential – Internal/Restricted/Highly Restricted 10 • Service Quiesce
- 11. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Deserialization Accelerator Asynchronous Index Build Guardian stats Project Shrapnel Asynchronous EntryProcessors Pop the hood… Oracle Confidential – Internal/Restricted/Highly Restricted 11 5 1 3 4 6 2
- 12. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Entry Processors • Avoids lock(K), get(K), mutate(V), put(K, V), unlock(K) • Executed on the member that owns K • Possible to be invoked with a Collection<K> or a Filter (Predicate) • Allow features such as Partition Lite Transactions Oracle Confidential – Internal/Restricted/Highly Restricted 12
- 13. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Entry Processors • Are the steps in a processing pipeline parallelizable? • If so the answer is simple: Oracle Confidential – Internal/Restricted/Highly Restricted 13 A B EP C D A B EP C D
- 14. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Entry Processors • As of 12.1.3 OOTB we provide an AsynchronousProcessor • Wrapper processor • AsynchronousProcessor extends AsyncAgent implements Future • Can specify – Unit of Order {default: Thread.getId()} – Automatic Flow Control {default: true} Oracle Confidential – Internal/Restricted/Highly Restricted 14
- 15. Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | Oracle Confidential – Internal/Restricted/Highly Restricted 15
Editor's Notes
- #4: This is a Safe Harbor Front slide, one of two Safe Harbor Statement slides included in this template. One of the Safe Harbor slides must be used if your presentation covers material affected by Oracle’s Revenue Recognition Policy To learn more about this policy, e-mail: Revrec-americasiebc_us@oracle.com For internal communication, Safe Harbor Statements are not required. However, there is an applicable disclaimer (Exhibit E) that should be used, found in the Oracle Revenue Recognition Policy for Future Product Communications. Copy and paste this link into a web browser, to find out more information. http://my.oracle.com/site/fin/gfo/GlobalProcesses/cnt452504.pdf For all external communications such as press release, roadmaps, PowerPoint presentations, Safe Harbor Statements are required. You can refer to the link mentioned above to find out additional information/disclaimers required depending on your audience.
- #5: Deserialization Accelerator Asynchronous EntryProcessors Asynchronous Index Build Thread-count = -1 putAll -> storeAll Guardian stats Public Guardian PartialResultAggregator Exception handling for bulk ops (COH-3746) Reporter changes (submit report) NameService Down the rabbit hole…
- #12: Deserialization Accelerator Asynchronous EntryProcessors Asynchronous Index Build Thread-count = -1 putAll -> storeAll Guardian stats Public Guardian PartialResultAggregator Exception handling for bulk ops (COH-3746) Reporter changes (submit report) NameService Down the rabbit hole…