Increased promtail's backoff settings in prod and improved doc #1083
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What this PR does / why we need it:
The current promtail's backoff configuration starts dropping log entries if the Loki distributor endpoint is unreachable for 3.1s (worst case) - 6.2s (best case). In this PR, I'm proposing to increase the number of retries to 20, which increase the max time the distributor is unavailable before promtail starts dropping logs to the range 51.1s - 81.2s.
Current setup:
Proposed change:
Which issue(s) this PR fixes:
Fixes #915
Special notes for your reviewer:
minbackoff
guaranteed to be exponential (before it wasn't).Checklist