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  1. Cassandra
  2. CASSANDRA-15921

4.0 quality testing: Materialized View

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    • Quality Assurance
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    Description

      The main purpose of this ticket to get a better understanding about 4.0 MV status as a guideline for future improvements. I don't think it should block 4.0 release since it's already marked as experimental.

      Main areas to test:

      • Write perf: We expect to see 10% write throughput drop per MV added.
        • Attached C40_MV.png is alpha-4, 5-node, rf3 MV write tests: with 1 mv, throughput dropped 50%
      • Read perf: identical to normal table
      • Bootstrap/Decommision: no write-path required since CASSANDRA-13065
      • Repair: write path required
      • Chaos monkey: take down coordinator/base-replica/view-replica during read/write/token-movement and verify data consistency (may need a tool)
      • Hint Replay: able to throttle if table has MV - CASSANDRA-13810
      • Schema race: create/drop - CASSANDRA-15845/CASSANDRA-15918

      Attachments

        1. C40_MV.png
          492 kB
          Zhao Yang

        Issue Links

          is a parent of

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-13810 Overload because of hint pressure + MVs

          • Urgent - This issue should block release until it is resolved, and trigger immediate release once resolved.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-12783 Break up large MV mutations to prevent OOMs

          • Normal -
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-12888 Incremental repairs broken for MVs and CDC

          • Normal -
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-14168 Throw error when attempting to mutate non-existant table

          • Normal -
          • Open

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-12734 Materialized View schema file for snapshots created as tables

          • Normal -
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-16175 Avoid removing batch when it's not created during view replication

          • Normal -
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-16172 materialized view can return stale data even with R+W>N

          • Normal -
          • Triage Needed

          Bug - A problem which impairs or prevents the functions of the product. CASSANDRA-16174 During bootstrap streaming, skipping write path may create orphan MV rows

          • Normal -
          • Triage Needed
          is related to

          New Feature - A new feature of the product, which has yet to be developed. CASSANDRA-16076 Batch schema statements to create multiple SASI and MV at once to reduce disk IO

          • Normal -
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-13826 Specialize row structure to support complex Materialized Views liveness

          • Normal -
          • Open

          Activity

            People

              jasonstack Zhao Yang
              jasonstack Zhao Yang
              Zhao Yang
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              Dates

                Created:
                Updated: