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HDDS-15587. [Recon] Show 0 for offline DN pending deletion instead of -1 - #10585
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priyeshkaratha
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June 23, 2026 08:38
ArafatKhan2198
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Jul 7, 2026
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Thanks for working on this
Changes LGTM +1
Jut one small comment for the followup -
Rendering 0 B for an offline DN can read as "confirmed zero" rather than "unavailable." The ticket explicitly permits 0 as the default, so this is acceptable; a tooltip/"N/A" affordance would be a nice follow-up but isn't required here.
spacemonkd
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Thanks @priyeshkaratha for the patch, this LGTM +1.
I agree with @ArafatKhan2198's comment. Maybe we can tackle this later but can we show a similar error card or N/A to indicate something went wrong? 0 would give the wrong idea.
priyeshkaratha
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Jul 7, 2026
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Thanks @ArafatKhan2198 and @spacemonkd for review. I have created HDDS-15764 as followup ticket to improve UI. |
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errose28 added a commit
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Jul 7, 2026
* master: (519 commits) HDDS-14544. OM DB Insights: Duplicate API calls triggered when changing limit selector (apache#10677). HDDS-15587. [Recon] Show 0 for offline DN pending deletion instead of -1 (apache#10585). HDDS-15521. StreamBlockInputStream fails with TimeoutIOException without retry or failover. (apache#10479) HDDS-15170. Add mock-based unit tests for DataStream write path (apache#10230) HDDS-15552. Ratis events should not be published as metrics (apache#10523) HDDS-15746. Bump kerby to 2.1.2 (apache#10666) HDDS-15579. Replace SimpleSpanProcessor with BatchSpanProcessor (apache#10569) HDDS-15747. Address review comments for HDDS-15083 (apache#10669) HDDS-15732. Some ozone commands ignore OZONE_MODULE_ACCESS_ARGS (apache#10655) HDDS-15605. Fix flaky testContainerExclusionWithClosedContainerException (apache#10621) HDDS-11855. Fix flaky TestContainerBalancerDatanodeNodeLimit#checkIterationResultException (apache#10667) HDDS-15741. Bump awssdk to 2.46.17 (apache#10661) HDDS-10307. Speed up TestOzoneManagerHAWithStoppedNodes (apache#10658) HDDS-15651. Test case for DiskBalancer when markContainerForDelete fails (apache#10593) HDDS-15742. Bump nimbus-jose-jwt to 10.9.1 (apache#10662) HDDS-15719. Add check for allowed action usage in workflows (apache#10641) HDDS-15744. Bump javassist to 3.32.0-GA (apache#10665) HDDS-15737. Fix intermittent failure in balancerShouldOnlySelectConfiguredIncludeContainers (apache#10660) HDDS-15743. Bump gson to 2.14.0 (apache#10664) HDDS-11093. Fix intermittent failure in TestContainerBalancerDatanodeNodeLimit#testMetrics (apache#10659) ... Conflicts: hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/ozoneimpl/ContainerScanHelper.java
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What changes were proposed in this pull request?
In the Capacity Distribution → Datanode Details section of Recon, if a datanode is selected and later goes offline, the node becomes disabled for new selection. However, if it was already selected, some metrics such as Pending Deletion are displayed as -1, which can be confusing to users.
To provide a better user experience, Recon should display 0 (or an appropriate default value) for these metrics when the selected datanode is offline or unavailable, instead of showing -1.
What is the link to the Apache JIRA
HDDS-15587
How was this patch tested?
Tested using unit test and manually.
