Review
9 pages-
Overwrite Pool Affinity: Why #245 Was Not Adopted
Decision, October 24, 2026: do not merge the tested pool-affinity changes (PR #245). The experiment addressed a real space-efficiency problem, but neither the broad policy nor the narrower unversioned-only policy achieved an acceptable performance …
Decision, October 24, 2026: do not merge the tested pool-affinity changes (PR #245). The experiment addressed a real space-efficiency problem, but neither the broad policy nor the narrower unversioned-only policy achieved an acceptable performance …
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IAM Policy Reloads: Lock Scope, Cancellation, and Time Budgets
Commit 1b5477f3d (pgsty/silo#251) resolves two coupled failure modes under slow KMS/KES responses: Authentication-cache lock contention: ListPolicies and ListPolicyDocs now load and decrypt policy replacements outside the in-memory …
Commit 1b5477f3d (pgsty/silo#251) resolves two coupled failure modes under slow KMS/KES responses: Authentication-cache lock contention: ListPolicies and ListPolicyDocs now load and decrypt policy replacements outside the in-memory …
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LIST Recovery: Confirm Only Uncertain Names and Bound the Waiting Cost
Shipped in SILO Server 20261018, PR #239 (merged as fbcb51197, closing #218 and retaining mr javad seydi’s original signed commits from #221) and the October 18 directory/common-prefix follow-ups (3dd53eb81 and 2080b3d03) resolve silent object …
Shipped in SILO Server 20261018, PR #239 (merged as fbcb51197, closing #218 and retaining mr javad seydi’s original signed commits from #221) and the October 18 directory/common-prefix follow-ups (3dd53eb81 and 2080b3d03) resolve silent object …
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A Listing Must Not Drop a Null Version That Still Has Quorum
This record covers the listing omission investigated on 2026-09-16: an unversioned bucket under concurrent overwrites returned HTTP 200 listings that lacked keys the same endpoint could still GET. It describes the confirmed mechanism, the targeted …
This record covers the listing omission investigated on 2026-09-16: an unversioned bucket under concurrent overwrites returned HTTP 200 listings that lacked keys the same endpoint could still GET. It describes the confirmed mechanism, the targeted …
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Request-Header Deadlines: Absolute Header Limits and Rolling Body Idle Timeouts
This article records the repair of Server’s HTTP read deadlines, merged in PR #196 (fix 055030ea5) and shipped in Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a). The investigation was prompted by a slow-HTTP DoS scanner report (#183) and …
This article records the repair of Server’s HTTP read deadlines, merged in PR #196 (fix 055030ea5) and shipped in Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a). The investigation was prompted by a slow-HTTP DoS scanner report (#183) and …
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Replica Metadata Normalization: What a Trusted Copy May Not Re-Inject
Shipped in SILO Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a), PR #194 (commit 4fcdf37ce, merged as 9f3037e941, retaining Mikhail Khadarenka’s original implementation from PR #187) fixes a regression where a trusted replication receiver …
Shipped in SILO Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a), PR #194 (commit 4fcdf37ce, merged as 9f3037e941, retaining Mikhail Khadarenka’s original implementation from PR #187) fixes a regression where a trusted replication receiver …
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Replicated Tag Ordering: Revision Timestamps, Tombstones, and Resurrection
Shipped in SILO Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a), PR #193 (commit 03027727d) and PR #196 (commit 680eac66e) fix two defects in how object tags preserve ordering across bucket replication: SSE-KMS destination copies silently …
Shipped in SILO Server 20260916 (40220bd836cbd066ca424fa4dc5dbb90057fb55a), PR #193 (commit 03027727d) and PR #196 (commit 680eac66e) fix two defects in how object tags preserve ordering across bucket replication: SSE-KMS destination copies silently …
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Replication Reliability: Delete Completion, MRF Visibility, and Resync Cancellation
This article records the root-cause analysis, design tradeoffs, and validation across three rounds of replication reliability repairs shipped in Server 20260916: Round 1 (PR #162, merged as d1105bbb): addresses #153, #152, and #137, covering …
This article records the root-cause analysis, design tradeoffs, and validation across three rounds of replication reliability repairs shipped in Server 20260916: Round 1 (PR #162, merged as d1105bbb): addresses #153, #152, and #137, covering …
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SILO Server 20260903 Pre-release Review
This is the pre-release engineering review behind SILO 20260903 (RELEASE.2026-09-03T13-18-01Z at 9b11dc9469e650815b775cb47b039610644f5da4, reviewed candidate 6e112d1856d4f3655f30fc81ee47e9f43d50d8f3, against baseline RELEASE.2026-08-06T00-00-00Z at …
This is the pre-release engineering review behind SILO 20260903 (RELEASE.2026-09-03T13-18-01Z at 9b11dc9469e650815b775cb47b039610644f5da4, reviewed candidate 6e112d1856d4f3655f30fc81ee47e9f43d50d8f3, against baseline RELEASE.2026-08-06T00-00-00Z at …