apache / apache/druid

Historicals should return results from local cache ahead of the query queue

Open
#8,552 1 comment 1 reaction 0 assignees View on GitHub
Area - Cache Area - Querying Performance
Dominant language
Java
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Description

It doesn't make sense to wait for all the queries ahead in the queue to return the result from the local cache (Caffeine) immediately.

Related: #8356

Contributor guide

Open the contributing guide

Research direction

Start by reviewing the historical query handling and local Caffeine cache behavior described in the issue, then read related issue #8356 for context. The work is done when a cached result can be returned before waiting for queries ahead in the queue, with behavior verified by the relevant existing tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
database
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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