1399994 - Investigate sending classifications for multiple jobs as a single batched message to the server rather than spamming potentially hundreds of individual classifications.

Status: NEW

(Tree Management :: Treeherder, enhancement, P3)

Description

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

If I mass-classify a bunch of failures (either as a "fixed by commit" classification for a followup or backout commit, or from some infra-caused issue), there's a POST request to the job note endpoint for each individual failure. 

The in-page notifications spam the corner of the screen for quite a while (especially if the pinboard is near its full 500 job capacity). Network requests between client and server get saturated until everything resolves, which makes it take longer to load a new failure's job details and log info.

I think it would be nice to let the job note API accept a batched grouping of classifications, so only one request gets send from the client to the server, and the server could respond with either a single acknowledgement of the classifications, or individual responses for any classifications that failed for whatever reason.

The notification in the client could just say "[XX] Classifications saved for the selected jobs" rather than showing dozens/hundreds of individual "classification saved" messages. The number of network requests between client/server stays much lower, allowing other requests to go through more quickly.