Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Minor Minor
    • Resolution: Fixed
    • Fix Version/s: 1.2.0 beta 1
    • Component/s: Core
    • Labels:

      Description

      Under size-tiered compaction, you can generate large sstables that compact infrequently. With expiring columns mixed in, we could waste a lot of space in this situation.

      If we kept a TTL EstimatedHistogram in the sstable metadata, we could do a single-sstable compaction aginst sstables with over 20% expired data.

      1. 3442-track-tombstones.txt
        51 kB
        Yuki Morishita
      2. 3442-v3.txt
        42 kB
        Jonathan Ellis
      3. cassandra-1.1-3442.txt
        35 kB
        Yuki Morishita

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          • Assignee:
            Yuki Morishita
            Reporter:
            Jonathan Ellis
            Reviewer:
            Jonathan Ellis
          • Votes:
            1 Vote for this issue
            Watchers:
            7 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development