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This measured how long the Helper took to do a filecheck before asking for ciphertext. The "Contacting Helper" report includes both existence_check and the client-helper RTT. For non-overlapping uploads, it was being returned correctly. But when multiple upload requests overlapped, and the file was not already in the grid, the filecheck would only run once, and its existence_check time would be reported for all uploaders (even if they didn't have to wait for that time). Cleaning that up proved too difficult: the only correct place to report this time is from the initial remote_upload_chk() call, but the return value of that is too constrained to accomodate it in the needs-upload case. So I'm removing it altogether. Eventually I plan to add a proper events/times field and record more data, including this check, in a form that can be drawn on a nice zoomable timeline view. Old clients talking to a new Helper (which doesn't supply the value) will tolerate the loss (they'll just display an empty field on the web view).
========== Tahoe-LAFS ========== Tahoe-LAFS is a Free Software/Open Source decentralized data store. It distributes your filesystem across multiple servers, and even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to work correctly and to preserve your privacy and security. To get started please see `quickstart.rst`_ in the docs directory. LICENCE ======= Copyright 2006-2012 The Tahoe-LAFS Software Foundation You may use this package under the GNU General Public License, version 2 or, at your option, any later version. You may use this package under the Transitive Grace Period Public Licence, version 1.0, or at your option, any later version. (You may choose to use this package under the terms of either licence, at your option.) See the file `COPYING.GPL`_ for the terms of the GNU General Public License, version 2. See the file `COPYING.TGPPL.rst`_ for the terms of the Transitive Grace Period Public Licence, version 1.0. See `TGPPL.PDF`_ for why the TGPPL exists, graphically illustrated on three slides. .. _quickstart.rst: https://tahoe-lafs.org/source/tahoe-lafs/trunk/docs/quickstart.rst .. _COPYING.GPL: https://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.GPL .. _COPYING.TGPPL.rst: https://tahoe-lafs.org/trac/tahoe-lafs/browser/COPYING.TGPPL.rst .. _TGPPL.PDF: https://tahoe-lafs.org/~zooko/tgppl.pdf