All old data is sanitized and Perfherder should be usable again. One unfortunate side effect of the clean-up process is that some types of old perfherder links no longer work. In particular historical graph URLs (e.g. https://treeherder.mozilla.org/perf.html#/graphs?series=%5Bmozilla-inbound,3a5cf79c1facd50accbbc43bd03a7cc63498a5db,1,1%5D) and subtest comparison views (e.g. https://treeherder.mozilla.org/perf.html#/comparesubtest?originalProject=autoland&originalRevision=baa5349a1621b63cbdfdcf3895003f347a815097&newProject=autoland&newRevision=3fff88de2f2d5194bc940ad67ca2187498d00243&originalSignature=2c1b18c36650325842deb2c1d0fd6da193d264a7&newSignature=2c1b18c36650325842deb2c1d0fd6da193d264a7&framework=1) will no longer work since the signatures have changed.

I know this sucks and I apologize. :( In retrospect, the decision to use (and continue to use) "hashes" to uniquely identify performance signature information in Treeherderwas a huge mistake. It just duplicates what a database like MySQL was designed to do, but poorly.


Looking forward, I am going to do some work to make sure this never happens again: https://bugzilla.mozilla.org/show_bug.cgi?id=1310386

Will

On 2016-10-13 3:14 PM, William Lachance wrote:
Update: I have a fix applied for new data ingestion, but existing
results are still somewhat busted. It will take some time for a cleanup
script to work through the existing data (maybe a day?) but meanwhile
(new results) from try should be sane, so if you were waiting on this to
push some talos jobs, please go ahead. :)

I'll make another announcement when everything is ok.

Will

On 2016-10-11 9:59 PM, William Lachance wrote:
Hey all,

Due to an unfortunate bug that went undiscovered until we migrated to
Heroku last week, Perfherder currently isn't giving reliable results.
I hope to have this fixed within the next couple of days
(https://bugzilla.mozilla.org/show_bug.cgi?id=1309294). No data should
be lost, so we'll be able to catch up on Talos regressions, etc. at that
point.

I apologize for any inconvenience,

Will


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