apache / apache/lucene

Consider time-based MergeScheduler [LUCENE-5135]

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legacy-jira-priority:Minor type:enhancement
Dominant language
Java
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Avg merge
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Merged PRs (30d)
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Description

Very often search traffic follows the wave pattern, which could mean that more
aggressive merging could be done during periods with lower query
rates (e.g. nights and weekends) ... or maybe during that time more segments could be allowed to live in the index, assuming that after allowing that for some time, the subsequent merge could be bigger/more thorough, so to speak.

See http://search-lucene.com/m/D7ypz1gT2H91

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Migrated from [LUCENE-5135](https://issues.apache.org/jira/browse/LUCENE-5135) by Otis Gospodnetic (@otisg)

Contributor guide

Open the contributing guide

Research direction

No files, tests, or entry points are named. Start by reading the linked LUCENE-5135 discussion and determine the intended time-based MergeScheduler behavior; the issue has no acceptance criteria defining when the work is done.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
search
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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