LegendPei opened a new pull request, #3116:
URL: https://github.com/apache/hugegraph/pull/3116
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## Purpose of the PR
- close #2748
Remove the backend implementations that have been unsupported since 1.7.0,
and
clean up their related build, distribution, test, release, and documentation
artifacts.
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## Main Changes
- Remove Cassandra, ScyllaDB, MySQL, PostgreSQL, and Palo backend modules.
- Remove related Maven dependencies, distribution JAR entries, Docker/CI
scripts,
test cases, backend-specific runtime branches, and logging configuration.
- Clean obsolete release dependencies, LICENSE/NOTICE entries, and license
files.
- Remove Cassandra-specific initialization retry handling and use generic
backend
initialization retries instead.
- Update README and HBase runbook:
- 1.7.0+ supports RocksDB, HStore, HBase, and Memory only.
- Historical versions earlier than 1.7.0 supported MySQL, PostgreSQL,
Cassandra, ScyllaDB, and Palo.
## Verifying these changes
<!-- Please pick the proper options below -->
- [ ] Trivial rework / code cleanup without any test coverage. (No Need)
- [ ] Already covered by existing tests, such as *(please modify tests
here)*.
- [ ] Need tests and can be verified as follows:
- xxx
## Does this PR potentially affect the following parts?
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
- [ ] Dependencies ([add/update
license](https://hugegraph.apache.org/docs/contribution-guidelines/contribute/#321-check-licenses)
info &
[regenerate_known_dependencies.sh](../install-dist/scripts/dependency/regenerate_known_dependencies.sh))<!--
Don't forget to add/update the info in "LICENSE" & "NOTICE" files (both in
root & dist module) -->
- [ ] Modify configurations
- [ ] The public API
- [ ] Other affects (distribution packaging, CI scripts, and backend
documentation)
- [ ] Nope
## Documentation Status
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
- [ ] `Doc - TODO` <!-- Your PR changes impact docs and you will update
later -->
- [ ] `Doc - Done` <!-- Related docs have been already added or updated -->
- [ ] `Doc - No Need` <!-- Your PR changes don't impact/need docs -->
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