Continue PR #221 while retaining its original commits and authorship.
Route latest-only fallback reads through the namespace lock used by normal
writes, propagate terminal scan errors before cache completion, and retain
delete markers until the cross-pool merge has resolved them.
Recount narrowly eligible latest null-version metadata when mixed erasure
layouts prevent selection. Keep each EC group separate and preserve the
requested quorum, strict resolution, and version-listing behavior.
Add regression coverage for locking, terminal errors, cache completion,
delete markers, mixed EC layouts, and HTTP behavior; run focused race tests
in CI. Verified with make test, focused race tests, and local distributed
single- and multi-pool rolling-restart workloads with exact final oracles.
Refs: https://github.com/pgsty/silo/issues/218
Refs: https://github.com/pgsty/silo/pull/221
Signed-off-by: Feng Ruohang <rh@vonng.com>
Recount only when the existing selection is below quorum and each original
nonempty stream has one ordinary null version with identical EC headers.
Reuse the existing header grouping and leave history pruning unchanged.
Add deterministic signed LIST, complete-metadata permutation, excluded-history,
object-read, scanner/heal, Walk and migration-consumer regressions.
Signed-off-by: Feng Ruohang <rh@vonng.com>
(cherry picked from commit 9804e4deb4d5a18cca640be72bff9b47a415f7de)
Signed-off-by: Feng Ruohang <rh@vonng.com>
Feng Ruohang