Data migration from ftp.mozilla.org to S3, 1pm Pacific Tuesday 20th October

Starting today at 1pm a subset of directories will be migrated from the
FTP server to S3 - firefox, mobile, thunderbird, and calendar. The
window for this work is two hours long, and the trees will stay open
(unless things go very badly). This is part of a project lead by the
Cloud Ops group, assisted by Release Engineering .

Things you should know
* existing links to ftp.mozilla.org will continue to work, although
archive.mozilla.org is now considered the canonical domain
* while the data has been copied over, during the cutover the most
recent files may not available on the new system. Synchronization will
continue after the cutover to backfill them
* treeherder will continue to show the results of jobs, but the logs may
be affected by the previous point. Treeherder is designed to retrieve
the log again when necessary
* tests will continue to run because they use a separate storage system
(except for mozilla-beta, mozilla-release and mozilla-esr38)
* paths like firefox/tinderbox-builds/*/latest will stop being updated,
and later will be removed (they were originally added for gaia-try, and
that is now defunct)
* in the near future directories like firefox/releases/latest/ will be
emptied. README files with alternative options will be provided

Please contact the sheriff, or #releng, if you want to bring any issues
to our attention. bug 1211732 is tracking bug.

Nick Thomas (Release Engineering)