DanielCarter-stack commented on PR #10393:
URL: https://github.com/apache/seatunnel/pull/10393#issuecomment-3797716484
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### Issue 1: Missing CHANGELOG Update
**Location**: `docs/en/connector-v2/changelog/connector-jdbc.md`,
`docs/en/connector-v2/changelog/connector-s3-redshift.md`
**Modified Code**:
No code changes, documentation needs to be added.
**Related Context**:
- Reference file: `docs/en/connector-v2/changelog/connector-jdbc.md` (has
similar driver upgrade entries)
- Similar change: commit 9ba9f169b (SAP HANA driver upgrade)
**Issue Description**:
This PR upgrades dependency versions for two Connectors but does not add
update records in the corresponding CHANGELOG. According to project
conventions, dependency version upgrades should be recorded in the CHANGELOG
(e.g., in commit 9ba9f169b, the SAP HANA driver upgrade included a CHANGELOG
entry).
**Potential Risks**:
- Users cannot learn about this fix from the CHANGELOG
- Release Notes may miss this important fix when releasing the version
- Affects user tracking of version changes
**Impact Scope**:
- Direct impact: CHANGELOG documentation completeness
- Indirect impact: User visibility of version changes
- Affected area: Documentation (no impact on functionality)
**Severity**: **MINOR**
**Improvement Suggestions**:
Add CHANGELOG entries in the following files:
1. `docs/en/connector-v2/changelog/connector-jdbc.md`
2. `docs/en/connector-v2/changelog/connector-s3-redshift.md`
Add similar entries:
```markdown
| [Fix][Connector-Jdbc] Bump Redshift JDBC driver from 2.1.0.9 to 2.1.0.30
to fix OOM issues
(#10393)|https://github.com/apache/seatunnel/commit/ccfbfae61| dev |
```
**Rationale**:
- Maintain project documentation completeness
- Follow existing project conventions
- Improve user visibility of version changes
---
### Issue 2: Missing Official Verification of OOM Fix
**Location**: PR description (no specific file location)
**Modified Code**:
No code changes, need to supplement information in PR description.
**Related Context**:
- PR description: "Redshift JDBC 2.1.0.18 and below have OOM issues."
- Related classes:
- `RedshiftJdbcClient.java` (singleton connection management)
- `RedshiftDialect.java` (cursor mode data reading)
**Issue Description**:
The PR description claims that versions 2.1.0.18 and below have OOM issues,
but does not provide:
1. Official Release Notes link for Amazon Redshift JDBC Driver
2. Related Issue links
3. Specific OOM issue reproduction steps or error logs
This makes it difficult to independently verify the authenticity of the
issue fix.
**Potential Risks**:
- Other contributors cannot verify the authenticity of the issue
- Users may question the necessity of this upgrade
- If 2.1.0.30 does not fix the OOM issue, it will cause user confusion
**Impact Scope**:
- Direct impact: PR credibility
- Indirect impact: User confidence in the upgrade
- Affected area: Entire Redshift Connector user base
**Severity**: **MAJOR**
**Improvement Suggestions**:
In the PR description, supplement one of the following:
1. Official Release Notes link for Amazon Redshift JDBC Driver 2.1.0.30
2. Related GitHub Issue links (if any)
3. Error log examples and reproduction steps for the OOM issue
For example:
```markdown
## Why
Redshift JDBC 2.1.0.18 and below have OOM issues.
Refer to: [Amazon Redshift JDBC Driver Release
Notes](https://github.com/aws/amazon-redshift-jdbc-driver/releases/tag/v2.1.0.30)
Related Issue: https://github.com/apache/seatunnel/issues/XXXXX
```
**Rationale**:
- Improve PR transparency and credibility
- Facilitate user verification of upgrade necessity
- Align with open source project best practices
---
### Issue 3: Missing Integration Tests to Verify New Driver Version
**Location**: `seatunnel-e2e/seatunnel-connector-v2-e2e/connector-jdbc-e2e/`
(need to add new test file)
**Modified Code**:
Need to add new test file.
**Related Context**:
- Existing tests:
- `RedshiftCatalogTest.java` (unit tests, no dependency on real
environment)
- `RedshiftTypeConverterTest.java` (unit tests)
- Related classes:
- `RedshiftJdbcClient.java`: JDBC connection management
- `RedshiftDialect.java`: SQL execution and data reading
- `S3RedshiftSink.java`: data writing
**Issue Description**:
This PR upgrades the Redshift JDBC driver version to fix OOM issues, but:
1. No integration tests are added to verify compatibility with the new
driver version
2. No tests to verify whether the OOM issue is truly fixed
3. No regression tests to ensure no functionality rollback after upgrade
Considering:
- Large version span (2.1.0.9 → 2.1.0.30, crossing 21 minor versions)
- Involves memory management-related issue fixes
- Redshift is an important production-level data source
Missing integration tests pose a significant risk.
**Potential Risks**:
- New driver version may introduce new bugs or compatibility issues
- OOM issue may not be completely fixed, or may still occur in different
scenarios
- Functional rollback may only be discovered in production environment
**Impact Scope**:
- Direct impact: Test coverage
- Indirect impact: Version quality and user confidence
- Affected area: All Redshift Connector users
**Severity**: **MAJOR**
**Improvement Suggestions**:
**Option 1**: Add lightweight compatibility tests (recommended)
Add integration tests under
`seatunnel-connectors-v2/connector-jdbc/src/test/java/`:
```java
@Test
public void testRedshiftJdbcConnection() {
// Test basic connection and query using new driver version
// Verify driver class loading, connection creation, basic CRUD
}
```
**Option 2**: Add OOM fix verification tests
```java
@Test
public void testLargeDatasetNoOOM() {
// Test large data volume scenarios, verify OOM issue is fixed
// Can test with memory limit
}
```
**Option 3**: Add basic driver loading tests in CI
```bash
# Add in CI workflow
mvn test -Dtest=RedshiftCatalogTest
```
**Rationale**:
- Verify compatibility of new driver version with existing code
- Improve confidence in version release
- Prevent future rollbacks
---
### Issue 4: Missing Risk Assessment for Version Upgrade
**Location**: PR description (no specific file location)
**Modified Code**:
No code changes, need to supplement in PR description or commit message.
**Related Context**:
- Version span: 2.1.0.9 → 2.1.0.30 (21 minor versions)
- Related modules:
- `connector-jdbc`: JDBC direct connection
- `connector-s3-redshift`: S3 transit scenario
- Dependency methods:
- `seatunnel-dist/pom.xml`: packaged into distribution
- `assembly-bin-ci.xml`: included in final distribution package
**Issue Description**:
This version upgrade spans 21 minor versions, but the PR description lacks:
1. Detailed changelog (important changes between 2.1.0.10 and 2.1.0.30)
2. Analysis of potential breaking changes
3. Impact assessment on existing functionality
For example, there may be:
- API changes (although JDBC standard interfaces should remain compatible)
- Dependency tree changes (new version may introduce new transitive
dependencies)
- Behavior changes (such as default configurations, connection pool
behavior, etc.)
**Potential Risks**:
- Unknown breaking changes may cause issues in production environment
- New transitive dependencies may conflict with SeaTunnel's existing
dependencies
- Behavior changes may affect users' existing tasks
**Impact Scope**:
- Direct impact: Risk assessment completeness
- Indirect impact: Production environment stability
- Affected area: All users upgrading to this version
**Severity**: **MINOR**
**Improvement Suggestions**:
Supplement risk assessment in PR description:
```markdown
## Risk Assessment
**Version Span**: 2.1.0.9 → 2.1.0.30 (21 patch versions)
**Checked Changes**:
- ✅ JDBC API compatibility: No breaking changes
- ✅ Driver class name: Unchanged (com.amazon.redshift.jdbc42.Driver)
- ⚠️ Dependency tree: TODO (needs mvn dependency:tree verification)
**Testing**:
- Unit tests: Passed
- Integration tests: TODO (needs Redshift environment)
**Potential Impact**:
- Low risk: Standard JDBC API usage
- Mitigation: Monitoring in canary environment
```
**Rationale**:
- Provide complete change information
- Help maintainers assess merge risks
- Improve version upgrade transparency
---
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