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datastage高級培訓
? Datastage高級培訓
課程大綱：
?
(1). Parallel Framework Architecture
? ? ? 1. parallel processing architecture
? ? ? 2. pipeline and partition parallelism
? ? ? 3. role of configuration file
(2). job's compile and execution
? ? ? 1. main part of configuration file
? ? ? 2. compile process and OSH generated
? ? ? 3. role and part of Score
(3). partitioning and collectioning
? ? ? 1. how partitioning works in Framework
? ? ? 2. select collectioning and partitioning algorithms
? ? ? 3. view collector and partitioners in Score
(4). Sorting
? ? ? 1. soring data in parallel framework
? ? ? 2. reduce the number of inserted sorts in scores
? ? ? 3. optimize the Fork-join jobs
(5). Buffer
? ? ? 1. how buffer works
? ? ? 2. buffer tuning
? ? ? 3. avoid buffer contentions
(6). Data types
? ? ? 1. virtual data set
? ? ? 2. schemas
? ? ? 3. handle nulls
? ? ? 4. complex data etc.
(7). Reusable components
? ? ? 1. schema file and use it read sequential file
? ? ? 2. Runtime Column Progation (RCP)
? ? ? 3. shared containers
(8). Transformer Logic
? ? ? 1. null handling
? ? ? 2. Loop processing
? ? ? 3. groups
(9). Extend the datastage function
? ? ? 1. Wrapped stages
? ? ? 2. Build stages
? ? ? 3. External Function routines
? ? ? 4. Custom stages
(10). best practice
? ? ? 1. stage usage including lookup,Aggregator, transformaer etc...
? ? ? 2. performance tuning