Jayer23 opened a new issue, #24010: URL: https://github.com/apache/pulsar/issues/24010
### Discussed in https://github.com/apache/pulsar/discussions/24009 <div type='discussions-op-text'> <sup>Originally posted by **Jayer23** February 20, 2025</sup> **Description** We observed an abnormal write pattern in our Pulsar cluster: The nodes exposed in bookie metrics have little difference in read and write io. Producer has compressed write enabled.  In fact, monitoring at the node level found that io was greatly magnified, and the io differences between nodes were large. Some nodes had io less than 50MB/s, while some nodes had io greater than 450MB/s.  **Journal disks** on some nodes show very high write throughput (e.g., 400+ MB/s). **Environment** - Pulsar version: `3.0.7` - Storage config: - Journal: 3×SSD - Ledger：9×HDD - Replication: `3 replicas`, `2 quorum writes` **Expected Behavior** Write operations should be balanced between bookies</div> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
