[GitHub] markusthoemmes opened a new pull request #2626: Collapse multiple concurrent pulls of the same image.

[gi...@git.apache.org]

markusthoemmes opened a new pull request #2626: Collapse multiple concurrent pulls of the same image.
URL: https://github.com/apache/incubator-openwhisk/pull/2626
 
 
   Multiple concurrent calls of `docker pull` to the same image create unnecessary network traffic. Instead, all of those calls are collapsed into the first calls. After that call finished, a subsequent pull will result in a `docker pull` again to enable updates to the same image, without having to work with tags for convenience.
 
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