exceptionfactory opened a new pull request, #7885: URL: https://github.com/apache/nifi/pull/7885
# Summary [NIFI-12219](https://issues.apache.org/jira/browse/NIFI-12219) Backports Flow Configuration History persistent storage using JetBrains Xodus as implemented for [NIFI-12206](https://issues.apache.org/jira/browse/NIFI-12206) and adds migration capabilities to the support branch for subsequent NiFi version 1 releases. The `EntityStoreAuditService` class contains the same implementation as merged for NIFI-12219, and the new `FlowConfigurationHistoryMigrator` supports automated migration from H2 to Xodus on startup. The migrator checks for the presence of the H2 database file named `nifi-flow-audit.mv.db` and proceeds with migration when found. The migration process includes checking for older H2 binary formats, supporting all previous versions of H2 from 1.4 through 2.2. The migration process then uses available paging capabilities from the H2-based `AuditService` to transfer records. Following successful migration, the `FlowConfigurationHistoryMigrator` renames `nifi-flow-audit.mv.db` with a backup timestamp extension. # Tracking Please complete the following tracking steps prior to pull request creation. ### Issue Tracking - [X] [Apache NiFi Jira](https://issues.apache.org/jira/browse/NIFI) issue created ### Pull Request Tracking - [X] Pull Request title starts with Apache NiFi Jira issue number, such as `NIFI-00000` - [X] Pull Request commit message starts with Apache NiFi Jira issue number, as such `NIFI-00000` ### Pull Request Formatting - [X] Pull Request based on current revision of the `main` branch - [X] Pull Request refers to a feature branch with one commit containing changes # Verification Please indicate the verification steps performed prior to pull request creation. ### Build - [ ] Build completed using `mvn clean install -P contrib-check` - [ ] JDK 21 ### Licensing - [ ] New dependencies are compatible with the [Apache License 2.0](https://apache.org/licenses/LICENSE-2.0) according to the [License Policy](https://www.apache.org/legal/resolved.html) - [ ] New dependencies are documented in applicable `LICENSE` and `NOTICE` files ### Documentation - [ ] Documentation formatting appears as expected in rendered files -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
