Upload failure detections and retries

[Chris-Schnaufer]

Added a TransferStatusCallbackListener derived class to detect when Jargon fails on uploads Reduced the count of files per tar to a maximum of 50 (allows faster retries w/ less lost time when errors occur) Added a checksum check between the local file and the uploaded file w/ automatic retry (per file) if the checksum fails Added additional exception detection for catching certain upload issues with upload retry (on a per file basis) Added a retry loop for files that failed to upload Added a backoff algorithm that waits before retrying uploads after a failure (either checksum or other)

[dlebauer]

fixes https://github.com/CulverLab/sparcd/issues/27

[smalusa]

Thank you for taking the time to meet today. Sue

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On Jan 6, 2021, at 1:44 PM, David LeBauer notifications@github.com wrote:



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fixes #27https://github.com/CulverLab/sparcd/issues/27

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[julianpistorius]

@Chris-Schnaufer Is this PR ready to merge? If so I might merge https://github.com/CulverLab/sparcd/pull/41 first, then rebase this branch over CulverLab:Sanimal-No-ES and try to build again with Java 15.

[Chris-Schnaufer]

@Chris-Schnaufer Is this PR ready to merge? If so I might merge #41 first, then rebase this branch over CulverLab:Sanimal-No-ES and try to build again with Java 15.

PR 41 should be building off this one. I don't have a strong opinion on which to merge first - I think merging 41 before this one would result in more testing however.