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What changes were proposed in this pull request?

When the value of a key is set to an empty byte[]/String, getting that key should return back an empty byte[]/String.

HDDS-13254 might have accidentally changed this behavior. We should restore it and add tests to assert it. (Thanks @chungen0126 for pointing it out!)

What is the link to the Apache JIRA

HDDS-13317

How was this patch tested?

By adding new tests.

@szetszwo szetszwo requested a review from adoroszlai June 22, 2025 22:53
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Thanks @szetszwo for the patch.

@adoroszlai adoroszlai merged commit 05567e6 into apache:master Jun 23, 2025
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@szetszwo
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@adoroszlai , thanks a lot for reviewing and merging this!

aswinshakil added a commit to aswinshakil/ozone that referenced this pull request Jun 23, 2025
…239-container-reconciliation

Commits: 9

05567e6 HDDS-13317. Table should support empty array/String (apache#8676)
803fa31 HDDS-13313. Bump maven-javadoc-plugin to 3.11.2 (apache#8672)
774b3ee HDDS-13315. Bump log4j2 to 2.25.0 (apache#8670)
b86fad8 HDDS-13316. Bump commons-text to 1.13.1 (apache#8669)
c043be7 HDDS-13312. Bump maven-patch-plugin to 1.3 (apache#8673)
db6ed84 HDDS-13294. Remove the Table.close() method. (apache#8658)
e1365a7 HDDS-13286. Fail stream write when the volume is full.  (apache#8644)
af3a0f0 HDDS-13307. integration (flaky) fails with all tests passing (apache#8667)
d207c18 HDDS-13301. Fix TestSchemaOneBackwardsCompatibility (apache#8666)

Conflicts:
	hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/helpers/ContainerUtils.java
errose28 added a commit to errose28/ozone that referenced this pull request Jun 26, 2025
* master: (90 commits)
  HDDS-12468. Check for space availability for all dns while container creation in pipeline (apache#8663)
  HDDS-12151. Fail write when volume is full considering min free space (apache#8642)
  HDDS-13251. Update Byteman usage README license (apache#8700)
  HDDS-13251. Support dynamic Byteman scripts via bmsubmit in ozonesecure-ha (apache#8654)
  HDDS-12070. Bump Ratis to 3.2.0 (apache#8689)
  HDDS-12984. Use InodeID to identify the SST files inside the tarball. (apache#8477)
  HDDS-13319. Simplify KeyPrefixFilter (apache#8692)
  HDDS-13295. Remove jackson1 exclusions for hadoop-common (apache#8687)
  HDDS-13314. Remove unused maven-pdf-plugin (apache#8686)
  HDDS-13324. Optimize memory footprint for Recon listKeys API (apache#8680)
  HDDS-13240. Add newly added metrics into grafana dashboard. (apache#8656)
  HDDS-13309. Add keyIterator/valueIterator methods to Table. (apache#8675)
  HDDS-13325. Introduce OZONE_SERVER_OPTS for common options for server processes (apache#8685)
  HDDS-13318. Simplify the getRangeKVs methods in Table (apache#8683)
  HDDS-13322. Remove module auto-detection from flaky-test-check (apache#8679)
  HDDS-13289. Remove usage of Jetty StringUtil (apache#8684)
  HDDS-13270. Reduce getBucket API invocations in S3 bucket owner verification (apache#8653)
  HDDS-13288. Container checksum file proto changes to account for deleted blocks. (apache#8649)
  HDDS-13306. Intermittent failure in testDirectoryDeletingServiceIntervalReconfiguration (apache#8682)
  HDDS-13317. Table should support empty array/String (apache#8676)
  ...
errose28 added a commit to errose28/ozone that referenced this pull request Jun 26, 2025
* master: (170 commits)
  HDDS-12468. Check for space availability for all dns while container creation in pipeline (apache#8663)
  HDDS-12151. Fail write when volume is full considering min free space (apache#8642)
  HDDS-13251. Update Byteman usage README license (apache#8700)
  HDDS-13251. Support dynamic Byteman scripts via bmsubmit in ozonesecure-ha (apache#8654)
  HDDS-12070. Bump Ratis to 3.2.0 (apache#8689)
  HDDS-12984. Use InodeID to identify the SST files inside the tarball. (apache#8477)
  HDDS-13319. Simplify KeyPrefixFilter (apache#8692)
  HDDS-13295. Remove jackson1 exclusions for hadoop-common (apache#8687)
  HDDS-13314. Remove unused maven-pdf-plugin (apache#8686)
  HDDS-13324. Optimize memory footprint for Recon listKeys API (apache#8680)
  HDDS-13240. Add newly added metrics into grafana dashboard. (apache#8656)
  HDDS-13309. Add keyIterator/valueIterator methods to Table. (apache#8675)
  HDDS-13325. Introduce OZONE_SERVER_OPTS for common options for server processes (apache#8685)
  HDDS-13318. Simplify the getRangeKVs methods in Table (apache#8683)
  HDDS-13322. Remove module auto-detection from flaky-test-check (apache#8679)
  HDDS-13289. Remove usage of Jetty StringUtil (apache#8684)
  HDDS-13270. Reduce getBucket API invocations in S3 bucket owner verification (apache#8653)
  HDDS-13288. Container checksum file proto changes to account for deleted blocks. (apache#8649)
  HDDS-13306. Intermittent failure in testDirectoryDeletingServiceIntervalReconfiguration (apache#8682)
  HDDS-13317. Table should support empty array/String (apache#8676)
  ...

Conflicts:
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/checksum/ContainerChecksumTreeManager.java
hadoop-hdds/container-service/src/test/java/org/apache/hadoop/ozone/container/checksum/TestContainerChecksumTreeManager.java
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2 participants