tl;dr: what is the balance point between pushes to try taking too long and loosing repository history of recent try pushes?
Summary: -------- As most developers have experienced, pushing to try can sometimes take a long time. Once it takes "too long" (as measured by screams of pain in #releng) <https://etherpad.mozilla.org/ep/search?query=releng%29>, a "try [repository] reset" is scheduled. This hurts productivity and increases frustration for everyone involved (devs, IT, RelEng). We don't want to do this anymore. A reset of the try repository deletes the existing contents, and replaces with a fresh clone from mozilla-central. While the tbpl information will remain valid for any completed build, any attempt to view the diffs for a try build will fail (unless you already had them in your local repository). Progress on resolution of the root cause: ----------------------------------------- IT has made tremendous progress in reducing the occurrence of "long push times", but they still are not predictable. Various attempts at monitoring[1] and auto correction[2] have not been successful in improving the situation. Work continues on additional changes that should improve the situation[3]. The most recent mitigation strategy is to trade the "unknown timing" disruption of the push times increasing to a pain threshold with a "known timing" of reseting the try repository every TCW (tree closing window - every 6 wks currently). However, we heard from some folks that this is too often. The most recent try-reset-triggered-by-pain was a duration of 6 months[4]. There was at least one report just 3 months after reset of problems[5]. So, the question is - what say developers -- what's the balance point between: - too often, making collaborating on try pushes hard - too infrequent, introducing increasing push times --Hal Prior Work: ----------- [1] bug https://bugzil.la/691459 [2] bugs https://bugzil.la/554656https://bugzil.la/734225 <https://bugzil.la/734225#c24>#c24 <https://bugzil.la/734225#c24>https://bugzil.la/633161https://bugzil.la/529179 [3] bugs https://bugzil.la/770811https://bugzil.la/937732others [4] bugs https://bugzil.la/894429&; https://bugzil.la/962275 [5] bug https://bugzil.la/925354 _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
