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* feat: Free Volume Deadband (M) for EC Place nodes and racks |ΔfreeSlots| ≤ M is a tie; remainder is liveShards. M=0 stays strict freeSlots. M is free volume slots (× dataShards). pickNodeInRackEligible and pickRackEligible share the rule. Worker plugin config free_slots_deadband, default 0. Not on the write path. * fix: anchor EC freeSlots deadband on class maxFree Pairwise |Δfree|≤M vs the current winner is not transitive: 120→110→100 at M=10 slots picked 100. After evenness, rank by maxFree, keep |free-maxFree|≤M, then min liveShards. Shared by node and rack. M=0 is still only maxFree then live. * worker: add free_slots_deadband to ErasureCodingTaskConfig * erasure_coding: persist free_slots_deadband through TaskPolicy ApplyMaintenanceConfigFromToml accepted the key but the admin save path round-trips config through ToTaskPolicy, so the value was dropped on reload; serialize it like the other EC settings. * erasure_coding: bound free_slots_deadband at its declared maximum The TOML loader and the plugin worker config only clamped negatives, so a value above the spec's 100000 could reach the int32 TaskPolicy field and wrap; cap at 100000 on both entry paths and declare MaxValue on the plugin field. * erasure_coding: document free_slots_deadband in scaffold admin.toml --------- Co-authored-by: Chepurnov Simon <195125934+CHEPURNOV-S-S@users.noreply.github.com> Co-authored-by: user.email <chrislusf@users.noreply.github.com>
76 lines
2.7 KiB
TOML
76 lines
2.7 KiB
TOML
# Put this file in one of the locations, with descending priority
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# ./admin.toml
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# $HOME/.seaweedfs/admin.toml
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# /etc/seaweedfs/admin.toml
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# this file is read by "weed admin"
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# Maintenance task settings declared here are applied every time the admin
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# server starts, overriding values saved from the admin UI under
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# <dataDir>/conf. Commented-out keys keep their saved or default values.
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# Requires -dataDir.
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# Each value can also be set via environment variable, e.g.
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# export WEED_MAINTENANCE_VACUUM_GARBAGE_THRESHOLD=0.3
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[s3]
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# The address clients reach the S3 gateway at, including the scheme.
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# The file browser uses it to offer copyable object URLs; without it,
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# the copy action is hidden.
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# public_endpoint = "https://s3.example.com"
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[maintenance]
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# toggle the entire maintenance system (task detection and execution)
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# enabled = true
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[maintenance.vacuum]
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# enabled = true
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# vacuum volumes with more deleted content than this ratio
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# garbage_threshold = 0.3
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# how often to scan for volumes needing vacuum
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# scan_interval_seconds = 7200
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# max_concurrent = 2
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# only vacuum volumes older than this (rounded up to whole hours)
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# min_volume_age_seconds = 86400
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# max retry attempts for a failed vacuum job (admin runtime default)
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# retry_limit = 1
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# seconds to wait between retry attempts
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# retry_backoff_seconds = 10
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[maintenance.balance]
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# enabled = true
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# trigger balancing when volume distribution exceeds this ratio
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# imbalance_threshold = 0.2
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# scan_interval_seconds = 1800
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# max_concurrent = 1
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# minimum number of volume servers before balancing
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# min_server_count = 2
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# max retry attempts for a failed balance job
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# retry_limit = 1
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# seconds to wait between retry attempts
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# retry_backoff_seconds = 15
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[maintenance.erasure_coding]
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# enabled = true
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# only erasure code volumes this full
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# fullness_ratio = 0.95
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# only erasure code volumes not modified for this long
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# quiet_for_seconds = 3600
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# scan_interval_seconds = 3600
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# max_concurrent = 1
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# min_size_mb = 30
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# only process volumes from these collections, comma separated, "*" and "?" wildcards
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# and regex patterns allowed ("" = all collections)
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# collection_filter = ""
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# disk tags preferred for shard placement
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# preferred_tags = ["fast", "ssd"]
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# EC shard placement constraint, e.g. "020"; empty uses the master default replication
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# replica_placement = ""
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# fail planning when the placement constraints cannot be met instead of relaxing them
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# strict_placement = false
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# volume-slot deadband for shard placement: nodes whose free volume slots differ by at
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# most this much tie and fewer live shards wins; applied times data shards (0 = strict)
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# free_slots_deadband = 0
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# max retry attempts for a failed erasure coding job
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# retry_limit = 1
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# seconds to wait between retry attempts
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# retry_backoff_seconds = 30
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