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https://issues.apache.org/jira/browse/MESOS-1452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16924640#comment-16924640
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Meng Zhu commented on MESOS-1452:
---------------------------------
{noformat}
commit a8050cafaa5465bd74a2ced1c37bb6b64c735445
Author: Andrei Sekretenko <[email protected]>
Date: Fri Sep 6 14:15:28 2019 -0700
Separated handling offer validation failure from handling success.
This patch refactors the loop through offer IDs in `Master::accept()`
into two simpler loops: one loop for the offer validation failure case,
another for the case of validation success, thus bringing removal of
offers and recovering their resources close together.
This is a prerequisite for implementing `rescindOffer()`/
`declineOffer()` in the dependent patch.
Review: https://reviews.apache.org/r/71433/
commit 7eb21c41ed255184988298e29644bf7f310c3374
Author: Andrei Sekretenko <[email protected]>
Date: Fri Sep 6 14:15:38 2019 -0700
Moved `removeOffers()` from `Master::accept()` into `Master::_accept()`.
This patch moves offer removal on accept into the deferred continuation
that follows authorization (if offers pass validation in `accept()`).
Incrementing the `offers_accepted` metric is also moved to `_accept()`.
This is a prerequisite for implementing `rescindOffer()` /
`declineOffer()` / in the dependent patch.
Review: https://reviews.apache.org/r/71434/
Author: Andrei Sekretenko <[email protected]>
Date: Fri Sep 6 14:15:54 2019 -0700
Replaced removeOffer + recoverResources pairs with specialized helpers.
This patch adds helper methods `Master::rescindOffer()` /
`Master::discardOffer()` that recover offer's resources in the allocator
and remove the offer, and replaces paired calls of `removeOffer()` +
`allocator->recoverResources()` with these helpers.
Review: https://reviews.apache.org/r/71436/
{noformat}
> Improve Master::removeOffer to avoid further resource accounting bugs.
> ----------------------------------------------------------------------
>
> Key: MESOS-1452
> URL: https://issues.apache.org/jira/browse/MESOS-1452
> Project: Mesos
> Issue Type: Improvement
> Reporter: Benjamin Mahler
> Priority: Major
>
> Per comments on this review: https://reviews.apache.org/r/21750/
> We've had numerous bugs around resource accounting in the master due to the
> trickiness of removing offers in the Master code.
> There are a few ways to improve this:
> 1. Add multiple offer methods to differentiate semantics:
> {code}
> useOffer(offerId);
> rescindOffer(offerId);
> discardOffer(offerId);
> {code}
> 2. Add an enum to removeOffer to differentiate removal semantics:
> {code}
> removeOffer(offerId, USE);
> removeOffer(offerId, RESCIND);
> removeOffer(offerId, DISCARD);
> {code}
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