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TEZ-4756: DAGUtils: configuration handling improvements - #539
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🟡 Changes recommended
The new unit test includes credential-like strings that can trigger secret-scanning and it should be adjusted to use safe placeholders and more reliably exercise default redaction behavior.
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Pull request overview
Improves how Tez publishes AM configuration data to YARN Timeline/ATS by redacting sensitive configuration values (based on Hadoop’s sensitive-key patterns) before building the ATS configuration map, and adds a unit test covering redaction behavior.
Changes:
- Route all configuration values through Hadoop
ConfigRedactorinDAGUtils.convertConfigurationToATSMap. - Add a unit test verifying sensitive keys are masked and non-sensitive keys remain unchanged.
File summaries
| File | Description |
|---|---|
| tez-dag/src/main/java/org/apache/tez/dag/history/utils/DAGUtils.java | Redacts configuration values via ConfigRedactor before publishing to ATS. |
| tez-dag/src/test/java/org/apache/tez/dag/history/utils/TestDAGUtils.java | Adds a unit test validating redaction behavior for sensitive configuration keys. |
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- Comments generated: 2
- Review effort level: Lite
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Route each key/value pair through Hadoop's ConfigRedactor when building the ATS configuration map, so values matching the cluster's configured sensitive-key pattern are masked in the map published to Timeline. Adds a unit test. Co-Authored-By: Claude Code <noreply@anthropic.com>
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ayushtkn
approved these changes
Oct 29, 2026
| // core-default.xml and misses fs.s3a.session.token. | ||
| Configuration conf = new Configuration(); | ||
| conf.set("tez.am.dag.scheduler.class", | ||
| "org.apache.tez.dag.app.dag.impl.DAGSchedulerNaturalOrder"); |
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can we rather than hardcoding, using the Class.getName() and for the configs as well, the Config variables
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Route each key/value pair through Hadoop's ConfigRedactor when building the ATS configuration map, so values matching the cluster's configured sensitive-key pattern are masked in the map published to Timeline. Adds a unit test.