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From "Zameer Manji" <>
Subject Re: Review Request 39670: Create immutable copy of offers for PendingTaskProcessor.
Date Mon, 26 Oct 2015 23:16:10 GMT

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(Updated Oct. 26, 2015, 4:16 p.m.)

Review request for Aurora, Maxim Khutornenko and Bill Farner.


Rebase on top of master

Bugs: AURORA-1510

Repository: aurora


The PendingTaskProcessor runs concurrently with MesosSchedulerImpl. MesosSchedulerImpl adds/removes
offfers from OfferManager while PendingTaskProcessor iterates over the available offers from
OfferManager. Since OfferManager only returns an unmodifiable view of the underlying list
of offers, this causes a `ConcurrentModificationException`. To prevent this exception, the
PendingTaskProcessor takes an immutable copy of the offers before iterating over the list
of available offers.

Diffs (updated)

  src/main/java/org/apache/aurora/scheduler/preemptor/ 506176769e172b7e9f4ba05c486fe6ab550fb5c3



./gradlew build -Pq


Zameer Manji

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