elastic/elasticsearch

Show force merge/optimize progress

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#15975 opened on Jan 14, 2016

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 (17 comments) (29 reactions) (0 assignees)Java (76,700 stars) (25,882 forks)batch import
:Distributed/Engine>enhancementTeam:Distributedhelp wanted

Description

Are we able to expose this somehow, maybe pending tasks? At the moment it just runs until finished, but I'm hoping there may be a way to figure out some kind of progress percentage, even a rough one.

I realise this is all a little vague, but I don't really know if it's possible, just that it'd be nice to have :p

Contributor guide

Tech stack
javarest api
Domain
backendapi
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Elasticsearch internalsJavaREST APIConcurrent programming
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
The issue requests progress feedback during force merge operations. Investigate the internal merge process in Elasticsearch to identify if there are existing progress metrics. Consider using the 'pending tasks' API or adding a new field to the force merge response. Relevant files: ForceMergeRequestBuilder, MergePolicy, and related REST endpoint classes. No linked PRs or assignees, so the approach is open for design.