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Support #49489
openGetting Long heartbeat and slow requests on ceph luminous 12.2.13
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Description
1. Current environment is integrated with ceph and openstack
2. It has NVME and SSD disks only
3. We have create following pool - 1. NVME cached ssd where NVME acts are cache tier and SSD as main storage
2. Pure SSD pool
3. Pure NVME pool
4. Creating vms from pure ssd and nvme has no issues
5. Creating vms from NVME cached SSD showing long heartbeats on back and front network as well as slow requests
6. Pool are in write back mode
7. Then we are also seeing OSD flaps, mon down also
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