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feat(ilm): relocate hot objects across server pools by GET frequency

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Keep NVMe/HDD pool pairs useful without remote tiering: promote objects that
are read often, demote previously moved objects once they go idle, and leave
the feature off until operators set a two-pool topology.

Signed-off-by: mr javad seydi <seydi.birjand@gmail.com>
This commit is contained in:
mr javad seydi
2026-08-15 13:39:02 +03:30
parent 100e2e57a7
commit 7a060cab1e
31 changed files with 5042 additions and 42 deletions
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docs/metrics/prometheus/list.md
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@@ -225,6 +225,17 @@ For deployments with [bucket](https://silo.pgsty.com/administration/bucket-repli
| `minio_node_ilm_transition_active_tasks` | Number of active ILM transition tasks. |
| `minio_node_ilm_transition_pending_tasks` | Number of pending ILM transition tasks in the queue. |
| `minio_node_ilm_transition_missed_immediate_tasks` | Number of missed immediate ILM transition tasks. |
| `minio_node_ilm_access_tier_active_tasks` | Number of active access-tier pool moves. |
| `minio_node_ilm_access_tier_pending_tasks` | Number of pending access-tier pool moves. |
| `minio_node_ilm_access_tier_promotions_total` | Total objects promoted by access-tier ILM. |
| `minio_node_ilm_access_tier_demotions_total` | Total objects demoted by access-tier ILM. |
| `minio_node_ilm_access_tier_bytes_moved_total` | Total logical bytes moved by access-tier ILM. |
| `minio_node_ilm_access_tier_failures_total` | Total failed access-tier ILM moves. |
| `minio_node_ilm_access_tier_skipped_watermark_total` | Promotions skipped because the hot pool reached its watermark. |
| `minio_node_ilm_access_tier_skipped_max_size_total` | Promotions skipped because the cluster hot-tier size cap was reached. |
| `minio_node_ilm_access_tier_skipped_bucket_quota_total` | Promotions skipped because the bucket hot-tier quota was reached. |
| `minio_node_ilm_access_tier_hot_bytes` | Logical bytes currently accounted to the hot tier, labeled by bucket. |
| `minio_node_ilm_access_tier_samples_dropped_total` | GET samples dropped because the access tracker queue was full. |
| `minio_node_ilm_versions_scanned` | Total number of object versions checked for ilm actions since server start. |
| `minio_node_ilm_action_count_delete_action` | Total action outcome of lifecycle checks since server start for deleting object |
| `minio_node_ilm_action_count_delete_version_action` | Total action outcome of lifecycle checks since server start for deleting a version |