What this PR does / why we need it:
added backoff mechanism to slow down and retry delete requests on retention.
It should help avoid the case when the cloud provider rate limits the compactor due to the huge number of requests fired to delete the chunks.
What this PR does / why we need it: added backoff mechanism to slow down and retry delete requests on retention. It should help avoid the case when the cloud provider rate limits the compactor due to the huge number of requests fired to delete the chunks.