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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/72790/
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(Updated Sept. 3, 2020, 12:29 p.m.)


Review request for mesos and Qian Zhang.


Changes
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Added a comment for the pull hashmap; fixed indentation.


Bugs: MESOS-10169
    https://issues.apache.org/jira/browse/MESOS-10169


Repository: mesos


Description
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This patch makes the docker store reuse a pending pull if asked for
an image that is already being pulled.

The pull caching follows the same approach as the earlier attempt in
https://reviews.apache.org/r/39331 . However, handing out futures to
the store callers and handling their discards are performed differently,
using a form of reference counting, so that the pull itself is discarded
only if all the futures returned by `Store::get()` have been discarded.


Diffs (updated)
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  src/slave/containerizer/mesos/provisioner/docker/store.cpp bf2be90aa4fcd7541849a157eb6930b491ccf03a 


Diff: https://reviews.apache.org/r/72790/diff/2/

Changes: https://reviews.apache.org/r/72790/diff/1-2/


Testing
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Thanks,

Andrei Sekretenko