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Feng Ruohang
e90cb2067d
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>
