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Merge branch 'master' of ssh://git-annex.branchable.com

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Joey Hess 2017-04-07 17:06:12 -04:00
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doc/bugs/get_-J_cannot_be_used_with_password-based_authentication/comment_2_c877de08f959dee4ace34e66f42c8615._comment Normal file
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[[!comment format=mdwn
username="yarikoptic"
avatar="http://cdn.libravatar.org/avatar/f11e9c84cb18d26a1748c33b48c924b4"
subject="may be?"
date="2017-04-07T21:01:56Z"
content="""
well, it kinda depends at either at which level parallelization is happening or how parallel jobs handling is done, or may be ...
level of parallelization:
I guess ATM annex just parallelizes at the level of \"get --key KEY\" jobs.
But if central process decided to try to \"get --from=remote --key KEY\" -- call which it submits to parallel work pull -- then it could first check if remote is an ssh remote and connection caching is established, and if not -- establish it and then submit this and/or any subsequent get call.
This would though over-complicate the design I guess considerably, so probably shouldn't be approached.
jobs handling:
if parallel jobs could 'yield' back to the original process (e.g. if there was some protocoled exchange between them and master process... somewhat similar to git annex special remotes in a way) demanding some action (e.g. - authenticate me to the host) and then proceed back with its dues, could work out I guess.
But I guess that is also not current implementation
may be...:
since I guess (didn't check) GIT_SSH_COMMAND is used (or not yet but could be?) for ssh transfers, such activity as establishing shared ssh connection could be deferred to it (with some proper locking/waiting for parallel invocations)... or am I wrong?
"""]]