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https://issues.apache.org/jira/browse/COMDEV-510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maxim Solodovnik updated COMDEV-510:
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Labels: Doris Mentor full-time gsoc2023 (was: ApacheDoris Mentor full-time
gsoc2023)
> [GSoC][Doris]Page Cache Improvement
> -----------------------------------
>
> Key: COMDEV-510
> URL: https://issues.apache.org/jira/browse/COMDEV-510
> Project: Community Development
> Issue Type: Task
> Components: GSoC/Mentoring ideas
> Reporter: Zhijing Lu
> Priority: Major
> Labels: Doris, Mentor, full-time, gsoc2023
>
> *Apache Doris*
> Apache Doris is a real-time analytical database based on MPP architecture. As
> a unified platform that supports multiple data processing scenarios, it
> ensures high performance for low-latency and high-throughput queries, allows
> for easy federated queries on data lakes, and supports various data ingestion
> methods.
> {*}Page{*}: [https://doris.apache.org|https://doris.apache.org/]
> {*}Github{*}: [https://github.com/apache/doris]
> h3. *Background*
> Apache Doris accelerates high-concurrency queries utilizing page cache, where
> the decompressed data is stored.
> Currently, the page cache in Apache Doris uses a simple LRU algorithm, which
> reveals a few problems:
> * Hot data will be phased out in large queries
> * The page cache configuration is immutable and does not support GC.
> h3. Task
> * {*}Phase One{*}: Identify the impacts on queries when the decompressed
> data is stored in memory and SSD, respectively, and then determine whether
> full page cache is required.
> * {*}Phase Two{*}: Improve the cache strategy for Apache Doris based on the
> results from Phase One.
> h3. Learning Material
> {*}Page{*}: [https://doris.apache.org|https://doris.apache.org/]
> {*}Github{*}: [https://github.com/apache/doris]
> h3. Mentor
> * Mentor: Yongqiang Yang, Apache Doris PMC member & Committer,
> [yangyongqi...@apache.org |mailto:yangyongqi...@apache.org]
> * Mentor: Haopeng Li, Apache Doris PMC member & Committer,
> [lihaop...@apache.org|mailto:lihaop...@apache.org]
> * Mailing List: d...@doris.apache.org
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