Hanson created CASSANDRA-7549:
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Summary: Heavy Disk Read I/O
Key: CASSANDRA-7549
URL: https://issues.apache.org/jira/browse/CASSANDRA-7549
Project: Cassandra
Issue Type: Improvement
Environment: Cassandra 2.0.6
Reporter: Hanson
We observed heavy disk Read I/O, sometimes almost ~100% disk I/O %util. The
block size for Disk Read seems too small per “iostat”:
- DB Query: ~40KB per read
- SSTables Compaction : ~120KB per read
Could it use larger block size for Disk Read? (from Cassandra or OS disk driver
tuning)
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