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  1. MariaDB ColumnStore
  2. MCOL-3875 Columnstore write cache
  3. MCOL-4914

Complete ColumnStore Cache Part 2

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Details

    • Sub-Task
    • Status: Open (View Workflow)
    • Critical
    • Resolution: Unresolved
    • None
    • 23.10
    • MDB Plugin
    • None
    • 2020-7

    Description

      This is a continuation of MCOL-4769 and covers the following items not addressed in that ticket:

      1. columnstore_cache_use_import cannot be made default because cpimport bloats the database by wasting space in HWM blocks. This needs a resolution.
      2. If a select statement is sent to a secondary (slave) node - there should be a cache flush caused on the primary (needs design)
      3. any START TRANSACTION should flush cache. Cache should not be used if there are any multi-statement transactions present in the system (needs design)

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MCOL-4924 Insert Cache - Table not accessible after LDI caused a version buffer overflow error

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MCOL-4926 Insert cache - Got an insert cache crashed error

          • Major - Major loss of function.
          • Closed
          relates to

          New Feature - A new feature of the product, which has yet to be developed. MCOL-5038 Add timer for Insert Cache flush

          • Major - Major loss of function.
          • Open

          New Feature - A new feature of the product, which has yet to be developed. MCOL-4769 Complete ColumnStore Insert Cache Part 1

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              leonid.fedorov Leonid Fedorov
              tntnatbry Gagan Goel (Inactive)
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