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Batch Processing - A&BP CC
The document outlines key principles of batch processing, distinguishing it from scheduling, and emphasizes essential building blocks for effective transaction management based on the ACID principles. It discusses various transaction patterns, including handling duplicates and patterns involving JMS, followed by execution flow strategies and parallel execution types. Additionally, the document touches on Spring Batch features and JSR-352 specifications related to enterprise batch processing.
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Batch Processing - A&BP CC
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- 5. Batch processing ≠Scheduling Batch processing Scheduling Process large volumes of data Scheduling tasks eg. Spring Batch, JEE eg. Quartz, Obsidian
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- 8. Categorize based onresponsibility ▪ ▪ ▪ ▪ ▪ ▪
- 9. Categorize based oninput source ▪ ▪ ▪
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- 13. Transactions are handledat the step level ▪ ▪
- 14. Transaction management insteps (tasklets) Step 1 Step 2 Step 3 Transaction Transaction Transaction x nn
- 15. Example: chunk-oriented step <stepid="importProductsStep"> <tasklet> <chunk reader="reader" writer="writer" commit-interval="100" /> <transaction-attributes isolation="READ_UNCOMMITTED" /> </tasklet> </step> Transaction
- 16. Transaction management inlisteners ▪ ▪ ▪ ▪ ChunkListener beforeChunk afterChunk
- 17. Transactional reader <step id="importProductsStep"> <tasklet> <chunkreader="reader" writer="writer" commit-interval="100" reader-transactional-queue="true"/> <transaction-attributes isolation="READ_UNCOMMITTED" /> </tasklet> </step>
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- 22. Drawbacks to globaltransactions ▪ ▪ ▪ ▪ ▪ ▪ ▪
- 23. Shared resource transactionpattern ▪
- 24. Best effort patternwith JMS
- 25. What can gowrong with JMS? ▪ ▪
- 26. Best effort patternwith JMS commit start commit start Chunk local transaction JMS local transaction timeline Commits are synchronized <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="connectionFactory" /> <property name="defaultDestination" ref="orderQueue" /> <property name="receiveTimeout" value="100" /> <property name="sessionTransacted" value="true" /> </bean>
- 27. JMS failure willresult in a duplicate message commit start commit start Chunk local transaction JMS local transaction timeline Commits are synchronized failed
- 28. Handling duplicate messageswith manual detection ▪ ▪
- 29. Handling duplicate messageswith manual detection
- 30. Handling duplicate messageswith idempotency
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- 35. Conditional flow -example
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- 43. Parallel execution -types ▪ ▪ ▪
- 44. Parallel execution -Multithreaded ▪ ▪ ▪
- 45. Parallel execution -Remote chunking ▪ ▪ ▪ ▪ ▪ ▪
- 46. Parallel execution -Step partitioning ▪ ▪ ▪ ▪
- 47. Parallel execution -Step partitioning
- 48. Parallel execution -Step partitioning example
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- 57. Processing the lineswe just read ▪ ▪ KmPerHourCalculator ▪ null
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- 59. Writing the Fines ▪ ▪BeanWrapperFieldExtractor DelimitedLineAggregator
- 60. Adding it alltogether ▪ ▪ BatchConfiguration ▪ ▪ ▪ ▪ Step ▪ ▪
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- 68. org.springframework.batch.core. SkipListener#onSkipInWrite(S item, Throwablet) javax.batch.api.chunk.listener. SkipWriteListener#onSkipWriteItem(List<Object> items, Exception ex) JSR-352 Spring vs. JEE
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