ezelkow1 opened a new pull request, #12845: URL: https://github.com/apache/trafficserver/pull/12845
This adds some fixes around fail_action 5. First it prevents a possible looping scenario, previously after exhausting waiting for a read lock after having failed in a write lock it would loop back around to check for write again. Now it will just go to origin. While this allows an extra request through it can prevent some odd scenarios, including one where it just writes back to the cache again anyway which would already be useless. Also if the original rww request is very slow then this allows waiters to bypass it. Second there could be an issue around redirects, normally a redirect is fine since it would have a different cachekey but if we enable use_orig then we could end up in the same looping contention in that scenario as well. Also adds some autests, though we should keep an eye on these since they could be timing dependent. So if we start getting failures we can turn them off. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
