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[release branch] Continue rendering tile despite errors #10012
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Since 9a9408e, we marked tiles as non-renderable if an error occured. This lead to situations where a tile was loaded + parsed successfully, then a revalidation attempt occured (e.g. because the resource was stale) which failed. In this case, we used to mark the tile as non-renderable although we could've used the perfectly parsed (stale) resource.
…perations completed Previously, when we started a worker operation that eventually throws an exception (e.g. due to the tile not being parseable), and then enqueue another worker operation while the first one is processing, we treated the worker as idle once the first operation's error callback fired, even though the second operation was still in progress. Due to our use of coalescing, I was unable to come up with a reliable test since we'd need to reproduce the behavior described above, which is timing dependent.
jfirebaugh
approved these changes
Sep 18, 2017
kkaefer
deleted the
release-ios-v3.6.0-android-v5.1.0__expired-resources
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port of #10011 to the release branch.