Description of problem: Slower bucket listing in RHCS buckets after resharding, compared to RHCS 4: - RHCS 4: 11 shards, bucket with 4.1M objects - listing takes 5 seconds. - RHCS 5: 97 shards, bucket with 3.8M objects - listing takes 20 seconds. The bucket contents are very similar between both Ceph versions, as the bucket in RHCS 5 was initially migrated from the cluster running RHCS 4. The RHCS 5 cluster runs on servers with more memory, CPU, and networking resources, so the hardware configuration doesn't explain this difference. Version-Release number of selected component (if applicable): RHCS 5.3z1 How reproducible: At the customer's site. Actual results: Bucket listing is slower in RHCS 5 than in RHCS 4 after resharding. Expected results: Bucket listing should be faster in RHCS 5. Additional info: Please see the complete description of this issue and the tests done in the following comments.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: Red Hat Ceph Storage 5.3 Security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2024:0745