79612321

Date: 2025-05-08 12:05:26
Score: 4
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  1. What is the compaction type ?

  2. What is the size of each partition, make sure partitions size is 100 MB max, Large partitions will cause GC pauses

  3. What is the consistency level ?

  4. Make sure you have no disk issues, high disk queue size
    https://support.datastax.com/s/article/HOW-TO-Use-iostat-to-diagnose-CPU-and-IO-bottlenecks

  5. Also check if there are too many memtable flushes, values of these parameters
    memtable_heap_space_in_mb, memtable_cleanup_threshold

  6. Do you see frequent tombstones in logs ?

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Posted by: Krishna Alapati