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Support multi-level chunk cache like a multi-level cache for the index and add metrics for tracking multi-level cache behavior.
cortex_store_multilevel_chunk_cache_fetch_duration_seconds
, tracks latency to fetch itemcortex_store_multilevel_chunk_cache_backfill_duration_seconds
, tracks latency to backfill itemcortex_store_multilevel_chunk_cache_backfill_dropped_items_total
, tracks # of dropped items due to buffer fullness when backfillingcortex_store_multilevel_chunk_cache_store_dropped_items_total
, tracks # of dropped items due to buffer fullness when storingAdd a multi level chunk cache
Which issue(s) this PR fixes:
Fixes #6240
Checklist
CHANGELOG.md
updated - the order of entries should be[CHANGE]
,[FEATURE]
,[ENHANCEMENT]
,[BUGFIX]