Change Details

The outcome of T253673, is to go with idea 3 - rolling restarts. Work: * [x] Patch Scap to do the rolling restart always (instead of only every once in a while, currently based on unreliable opcache thresholds) -- https://gerrit.wikimedia.org/r/631776 * [s] Patch Scap to implement an emergency flag that will perform this restart in a way that does not ensure live server capacity, in case of a bad patch having taken down the site in large part. Tracked by {T243009} * [x] Deploy updated Scap to Beta Cluster -- https://integration.wikimedia.org/ci/job/scap-beta-deb/118/ * [ ] Measure timing before and after, and report on task. * [ ] Package Scap for production aptitude. * [ ] Deploy updated Scap to production. * [ ] Measure timing before and after, and report on task.

The outcome of T253673, is to go with idea 3 - rolling restarts. Work: * [x] Patch Scap to do the rolling restart always (instead of only every once in a while, currently based on unreliable opcache thresholds) -- https://gerrit.wikimedia.org/r/631776 * [x] Patch Scap to implement an emergency flag that will perform this restart in a way that does not ensure live server capacity, in case of a bad patch having taken down the site in large part. Tracked by {T243009} * [x] Deploy updated Scap to Beta Cluster -- https://integration.wikimedia.org/ci/job/scap-beta-deb/118/ * [ ] Measure timing before and after, and report on task. * [ ] Package Scap for production aptitude. * [ ] Deploy updated Scap to production. * [ ] Measure timing before and after, and report on task.

The outcome of T253673, is to go with idea 3 - rolling restarts. Work: * [x] Patch Scap to do the rolling restart always (instead of only every once in a while, currently based on unreliable opcache thresholds) -- https://gerrit.wikimedia.org/r/631776 * [s* [x] Patch Scap to implement an emergency flag that will perform this restart in a way that does not ensure live server capacity, in case of a bad patch having taken down the site in large part. Tracked by {T243009} * [x] Deploy updated Scap to Beta Cluster -- https://integration.wikimedia.org/ci/job/scap-beta-deb/118/ * [ ] Measure timing before and after, and report on task. * [ ] Package Scap for production aptitude. * [ ] Deploy updated Scap to production. * [ ] Measure timing before and after, and report on task.