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Wayback Wednesday: Ditch the glitch

On the corporate the place this pilot fish works, the net phone listing is rebuilt each night time the use of knowledge that comes from each the Human Sources database and Microsoft Lively Listing.

And that works superb — most commonly. “A number of instances each and every 12 months, a couple of thousand staff can be lacking from the listing the following morning,” fish experiences. “Then the programmer would run the batch jobs manually and, inside an hour or so, the listing can be again to customary.”

Every time that occurs, fish asks for the foundation reason for the issue. And each time, he is advised it is a fluke, or a glitch in Lively Listing.

Fish is not pleased with that resolution, and he helps to keep asking. And asking. For, actually, a few years.

In spite of everything, after listening to fish insist for the umpteenth time that there should be an identifiable root reason, the programmer notices that the 2 batch jobs required to construct the listing are timed to run about 15 mins aside — first the one who extracts knowledge, then the one who if truth be told creates the corporate phonebook.

It seems that, on nights when the server is particularly busy, it takes greater than 15 mins to complete the primary batch process. However the second one process begins on time — and occasionally the phone listing rebuild process finishes sooner than the primary process has extracted the entire supply knowledge.

Fish has his root reason — and a repair.

“Including a dependency rule to the scheduling machine for the second one batch process resolved the issue completely,” says fish.

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