Sam Tunnicliffe created CASSANDRA-18984:
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Summary: Simplify scope-local retries using Entry.Id
Key: CASSANDRA-18984
URL: https://issues.apache.org/jira/browse/CASSANDRA-18984
Project: Cassandra
Issue Type: Improvement
Components: Transactional Cluster Metadata
Reporter: Sam Tunnicliffe
Assignee: Alex Petrov
Attachments: ci_summary.html
If a node submits a commit request to the CMS which succeeds but doesn't
receive the response, it will automatically retry. However, the CMS node
handling the resubmission most likely reject it as transformations are
generally not idempotent. The submitter will need to then handle that rejection
of the resubmission, which can currently mean inspecting the ClusterMetadata to
see if the expected effects of the transformation are present. By using the
entry id, the CMS node can identify the resubmission as such and return the
same (success) response it sent (or should have sent) the first time.
Implementation can be found in:
https://github.com/beobal/cassandra/commit/c3c33ea1430e1bd14552f68de75bb9c4166fc986
CI summary results attached. For right now, we've only been foccussing on unit
tests, in-jvm & python dtests, so the failures in other suites are to be
expected. Unfortunately, the archive containing the detailed results is too
large to attach as a single file, so will look into the best way to work around
that.
The intention is to fix all suites before merging the feature branch.
||Suite||Total||Passed||Skipped||Failed||Errors||
|jvm dtest|1508|1465|24|8|11|
|python dtest|1083|790|262|28|3|
|unit|12082|12006|61|6|9|
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