CEPH zero iops after upgrade to Reef and manual read balancer

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Hello Folks
We've recently performed an upgrade on our Cephadm cluster, transitioning
from Ceph Quiency to Reef. However, following the manual implementation of
a read balancer in the Reef cluster, we've experienced a significant
slowdown in client I/O operations within the Ceph cluster, affecting both
client bandwidth and overall cluster performance.

This slowdown has resulted in unresponsiveness across all virtual machines
within the cluster, despite the fact that the cluster exclusively utilizes
SSD storage."

Kindly guide us to move forward.

Mosharaf Hossain
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