hi,
can anyone tell wht is "waiting period" in the inter-row buffering?
thank you,
med.
Waiting period
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Sainath.Srinivasan
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When there is one process writing to a buffer and another process draining the buffer downstream, the downstream process needs a mechanism for detecting whether something has gone wrong with the upstream process.
No new rows for 10 seconds (which is a long time if you're processing thousands of rows per second) is a pretty good guideline that something has gone wrong.
(When nothing has gone wrong the upstream process writes a special "no more data" token into the buffer, to allow for graceful exit.)
When there is one process writing to a buffer and another process draining the buffer downstream, the downstream process needs a mechanism for detecting whether something has gone wrong with the upstream process.
No new rows for 10 seconds (which is a long time if you're processing thousands of rows per second) is a pretty good guideline that something has gone wrong.
(When nothing has gone wrong the upstream process writes a special "no more data" token into the buffer, to allow for graceful exit.)
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Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.