docs(durability): document the new-bucket relaxed default (#1811)
#5971 seeds a `relaxed` durability override into newly created buckets'
metadata (rustfs/backlog#1811), but the operator guide still described the
default as `strict` with relaxed as opt-in, and never mentioned the new-bucket
seed or its `RUSTFS_NEW_BUCKET_DURABILITY_MODE` knob. Document the behavior:
- intro notes new buckets default to `relaxed` (gradual migration; the
process-wide default and pre-existing buckets stay `strict`);
- the Configuration block lists `RUSTFS_NEW_BUCKET_DURABILITY_MODE`
(relaxed|strict|none|inherit, default relaxed);
- a new "New-bucket default" subsection under per-bucket durability covers the
seed semantics, the opt-out (`inherit` / `=strict`), fail-closed invalid
values, and that existing buckets are never retroactively rewritten.
No code change.
Co-authored-by: heihutu <heihutu@gmail.com>
Keep corrupted no-parity heal results on the integrity-failure path, preserve the object geometry in operator output, and document the recovery boundary for historical bad shards.
Co-authored-by: heihutu <heihutu@gmail.com>
perf(ecstore): per-bucket durability tier overrides (HP-5 phase 2)
Let a bucket override the process-wide RUSTFS_DURABILITY_MODE with its own
strict/relaxed/none tier, stored as a durability.json extension entry in the
bucket metadata file and resolved at commit points via effective_durability.
System-critical buckets (.rustfs.sys, .minio.sys) can never carry an override
and stay pinned to strict; the legacy full-off switch keeps its historical
semantics and per-bucket overrides do not apply under it. Overrides are
published and cleared through the existing bucket metadata cache-invalidation
path, and an admin GET/PUT handler exposes the configuration. Default behavior
is unchanged: with no override a bucket follows the global mode, which defaults
to strict and stays byte-for-byte identical to before.
Refs: https://github.com/rustfs/backlog/issues/938, https://github.com/rustfs/backlog/issues/936
Co-authored-by: heihutu <heihutu@gmail.com>