Add an Append call to the GCS Log that checks for current length #1788
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Test PASSed. |
pcmoritz
approved these changes
Mar 27, 2018
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What do these changes do?
This adds a version of the
Appendoperation on the GCSLoginterface that takes in alog_length. The command fails if the requestedlog_lengthdoes not match the current length of the log. This allows us to use Redis as a centralized point for atomic operations (replacing the legacy test-and-set functionality).