[jira] [Created] (OAK-8574) Minimize network calls required when completing direct upload

["Matt Ryan (Jira)" <ji...@apache.org>]

Matt Ryan created OAK-8574:
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             Summary: Minimize network calls required when completing direct upload
                 Key: OAK-8574
                 URL: https://issues.apache.org/jira/browse/OAK-8574
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: blob-cloud, blob-cloud-azure
    Affects Versions: 1.10.4, 1.16.0
            Reporter: Matt Ryan
            Assignee: Matt Ryan


The {{completeHttpUpload()}} in the cloud data store backends can be improved in terms of quantity of cloud storage service API calls.

Suggestions include:
 * Try a single {{getRecord()}} call at the beginning instead of calling {{exists()}}.  If an exception is thrown, catch it - this means the record doesn't exist and can be written.  If a record is returned, we don't write - and instead return this record.
 * Don't check for existence after writing the record; instead assume that the record is written correctly if no error or exception from SDK.  Verify this behavior in unit tests.
 * After writing the record, construct the record directly instead of calling {{getRecord()}} to do it.

This removes two network API calls if the record is written and one if the record already exists.



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