yugabyte/yugabyte-db

Include tablet size in yb_tablet_metadata

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#29665 opened on Dec 11, 2025

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good first issuejira-originatedkind/new-featurepriority/low

Description

Jira Link: DB-19492

Via yb_tablet_metadata view, it might be easy/helpful to expose information about tablet sizes for each replica.

(Much like Timur added support for it in the yb-master UI:

https://github.com/yugabyte/yugabyte-db/issues/29407#issuecomment-3552687883

in the "Raft Config/Replica" Info column).

(Customers would find it helpful to have this in a queryable manner rather than just in the UI).

Just like you show replica IP addresses as an array in yb_tablet_metadata view (see screenshot), we could add the active_ssts_size and wals_size as two additional array columns.

Issue created in Slack from a message.

Contributor guide

Tech stack
sqlpostgresql
Domain
database
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
blocked
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
familiarity with YugabyteDB system tablesSQL knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Examine the existing yb tablet metadata view definition in the codebase. Study the implementation in the yb master UI that shows tablet sizes (issue #29407). Determine how to retrieve active ssts size and wals size per replica and add them as array columns to the view. Look for relevant source files like src/yb/master/... or src/yb/catalog/... The assignee should provide a PR.