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It relates to:
task #7328, project CDS Invenio
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LATEST MODIFICATIONS of task #7328:
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Update of task #7328 (project cdsware):
Status: None => Done
Percent Complete: 0% => 90%
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Follow-up Comment #1:
The proposed solution has been implemented but there are apparently still
some situation when tasks aren't executed in the correct order.
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OVERVIEW of task #7328:
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URL:
<http://savannah.cern.ch/task/?7328>
Summary: bibsched scheduler to be signaled when tasks
terminate
Project: CDS Invenio
Submitted by: skaplun
Submitted on: 2008-07-07 09:10
Should Start On: 2008-07-07 00:00
Should be Finished on: 2008-07-07 00:00
Category: BibSched
Priority: 5 - Normal
Status: Done
Privacy: Public
Percent Complete: 90%
Assigned to: skaplun
Open/Closed: Open
Discussion Lock: Any
Effort: 0.00
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Current implementation of bibsched scheduler build every 5 seconds a snapshot
of the current running tasks and take decision whether to run/stop/put to
sleep a task based on this. If the status of at least one task changes
because of bibsched actions, the snapshot is refreshed. At the moment,
though, bibsched can not notice when a task terminates, because task are
launched in background and bibsched does not wait anymore for their
termination. Hence the snapshot is not refreshed and some tasks happen to run
in the wrong order because of this.
One solution to this problem is that each task that terminate send a UNIX
signal to bibsched, as a hint that the snapshot should be refreshed.
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Follow-up Comments:
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Date: 2008-08-06 11:55 By: Samuele Kaplun <skaplun>
The proposed solution has been implemented but there are apparently still
some situation when tasks aren't executed in the correct order.
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Carbon-Copy List:
CC Address | Comment
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2195 | -SUB-
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This item URL is:
<http://savannah.cern.ch/task/?7328>
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