WHAT ARE PERFORMANACE SETTINGS YOU HAVE IMPLEMENTES IN YOUR
PROJECT?
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Answer Posted / kpk
1) Use user defined queries for extracting data from databases.
2) Use native databases stages rather than using ODBC.
3) Use sql join statement rather than using a lookup stage,
if the data is less.
4) Tune the SQL query (the select statement used to extract
the data from source)
5) use less oracle stages, less transformers and lookup
stages, if you have more number of stages, divide the job
into multiple jobs.
6) if ur using server jobs use IPC, Partitioner, collector.
7) if using parallel job then set the environmental variable
APT_DUMP_SCORE to TRUE. this will give a job report that
will show you what are all the operators inserted by
datastage (like sorting, needed or uneeded partition and
collection), so u can manually change the partition methods.
.... most of the performance tunning steps depends on the
job design.
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