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  1. Cassandra
  2. CASSANDRA-17034

CEP-11: Memtable API implementation

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Details

    • Improvement
    • Status: Resolved
    • Normal
    • Resolution: Fixed
    • 4.1-alpha1, 4.1
    • Local/Memtable
    • None
    • Performance
    • Normal
    • All
    • Docs
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      Existing memtable implementation is tested as before. New implementations will need to also perform all memtable tests in addition to implementation-specific unit tests.

      New configuration options need to be added to the documentation.

       

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      Existing memtable implementation is tested as before. New implementations will need to also perform all memtable tests in addition to implementation-specific unit tests. New configuration options need to be added to the documentation.  

    Description

      Pluggable memtable API as described in CEP-11.

       

      Initial version is already available in this branch, and needs to be updated to the changes in trunk. Two additional features suggested by CEP reviewers are also to be implemented:

      • Sharding support: extending the memtable owner interface to supply suitable shard boundaries that split the owned token space and are in agreement with disk boundaries.
      • Shared read API with sstables: defining a common interface for reading partitions from memtables and sstables; this is to include filters to avoid unnecessary copying.

      Attachments

        Issue Links

          causes

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-18040 Avoid schema mismatch problems on memtable API misconfiguration

          • Urgent - This issue should block release until it is resolved, and trigger immediate release once resolved.
          • Resolved
          is depended upon by

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. CASSANDRA-16052 CEP-7 Storage Attached Indexes (Phase 1)

          • Normal -
          • Resolved
          relates to

          Task - A task that needs to be done. CASSANDRA-17761 WEBSITE - July 2022 blog "Apache Cassandra 4.1 Features: Pluggable Memtable Implementations"

          • Normal -
          • Resolved
          links to

          Web Link PR dtest

          Web Link PR trunk

          Activity

            People

              blambov Branimir Lambov
              blambov Branimir Lambov
              Branimir Lambov
              Andres de la Peña, Caleb Rackliffe
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