October Engineering Update: O3 Gets Faster, Leaner, and More Operator-Friendly

October pushed O3 deeper into enterprise territory. We shipped two releases, O3 v1.3.0 and the AkaveSDK v0.3.1 (protocol) adding full cache-management, kernel-accelerated file paths, AWS-accurate pagination, hardened metadata encryption, and a CLI-based ACME flow for bucket certificates.
Angelo Schalley
November 26, 2025

We also expanded operator tooling with config auto-upgrades, revision-sync improvements, and Compose refinements that make deployments cleaner and more predictable.

Here’s the full update:

About Akave O3

Akave O3 is our S3-compatible object storage API that sits on top of the Akave decentralized data layer. Everything we ship continues to center around three fundamentals:

Security  -  Performance  -  Operability

October sharpened all three.

Security You Can Trust

Default at-rest encryption refinements

  • Default encryption moved from AES-256 → AES-128 for faster CPU paths.
  • AES-256 remains fully supported; operators can set it in config and rotate keys.

Metadata encryption fixes (SDK v0.3.1)

  • New deterministic key derivation path for buckets + files.
  • Older metadata encrypted under the broken path cannot be decrypted; this is an intentional breaking fix to make listings decryptable without leaking unencrypted names.
  • Double-encryption bug in file upload path eliminated.

ACME certs via CLI

  • Fully automated HTTP-01 certificate generation for bucket domains.
  • Improved directory structure checks and retry paths.

Performance & Stability

Kernel-accelerated file moves

  • copy_file_range() and sendfile() used when available.
  • Automatic fallback to safe user-space copy on unsupported filesystems.
  • Produces noticeably faster rename/move flows on large objects.

Streamlined checksum + IO pipeline

  • New IdentityValidator unifies trailer validation.
  • Cleaner EOF semantics.
  • Optional non-blocking read paths.
  • Tuned TCP buffers and leaner hot loops (SHA-256/CRC64 removed; MD5 fast-path kept).

Non-blocking local waits + in-memory caching

  • Ristretto-backed memory cache for hot paths.
  • Faster local reads, lower latency.

Partial-content done correctly

  • Single-range and multi-range support.
  • Correct 206/416 semantics and SetContentRange logic.

Enterprise-Ready Features

Full cache-management suite (v1.3.0)

  • TTL cleanup with scheduled jobs.
  • LRU eviction using last-used tracking.
  • Disk quotas via percent or absolute MB.
  • Verification-aware caching: an object becomes “cached” only after integrity validation.

This brings O3 closer to predictable, tier-1 enterprise behavior under load.

Object listing / pagination (AWS-aligned)

  • Unified prefix + marker rules.
  • Base64 continuation tokens.
  • Correct truncation behavior.
  • Accurate CommonPrefixes de-duplication.
  • Matching AWS max-keys semantics.
  • Updated test suite.

This was one of the largest correctness lifts we’ve shipped.

Config auto-upgrades

  • Unknown keys removed.
  • Newly introduced keys annotated.
  • Ensures old configs remain forward-compatible with zero manual editing.

Docker / Compose operational improvements

  • Base image updated to RHEL UBI.
  • Breaking: mount path now /data/db (was /o3).
  • Report volume added.
  • Compose tuned for io_uring safety and limits.
  • More predictable runtime behavior across kernels.

Operator tooling

  • CLI enhancements:
    • revision-sync with dry-run
    • SyncObjectsWithRevisions
    • ACME tooling
  • Better lifecycle handling in local write paths.
  • Metadata cleanup and object ingestion fixes.

Protocol Layer Upgrades

Hardened metadata encryption (SDK v0.3.1)

  • Deterministic, secure key derivation independent of unencrypted bucket/object names.
  • Ensures listings can be decrypted safely through the SDK.

PDP-aligned improvements (from ongoing work)

  • Cleaner piece CID builder shared between node and SDK.
  • Metadata fixes pave the path for fully trustless listings and PDP-aware object views.

Prickly Pear (O3 GUI) Continuation

Work continued from September with more functional screens wired to the live O3 APIs:

  • Credentials are automatically created on first login via SSO (Google & GitHub), with the user’s S3 endpoint and access details published and ready to use.
  • The console supports creating multiple independent credential sets so teams can silo departments or isolate specific buckets from each other directly through the GUI.

Now available: www.akave.com/free-trial 

Release Recap (October)

O3 v1.3.0

A heavy release focused on operator friendliness, correctness, and performance.

Key highlights:

  • Cache TTL + LRU quotas
  • Kernel-fast moves
  • Partial-content correctness
  • Pagination overhaul
  • Streamlined checksum & IO
  • CLI-based ACME
  • Config auto-upgrades
  • Compose & RHEL UBI image updates
  • Breaking: /data/db mount; AES-128 default encryption
AkaveSDK v0.3.1

A focused release addressing metadata encryption correctness.

Key highlights:

  • Fixed double-encryption path
  • New deterministic key derivation
  • Updated tests
  • CI improvements

What’s Next

Deep PDP tooling

Operator surfaces for viewing, repairing, and validating pieces via PDP.

Lifecycle & tiering policies

Policy-driven movement between hot/warm/cold paths, tied into proofs.

Hosted O3 offering

For teams wanting to use O3’s S3 front-end while writing directly into Akave’s decentralized layer.

Connect with Us

Akave Cloud is an enterprise-grade, distributed and scalable object storage designed for large-scale datasets in AI, analytics, and enterprise pipelines. It offers S3 object compatibility, cryptographic verifiability, immutable audit trails, and SDKs for agentic agents; all with zero egress fees and no vendor lock-in saving up to 80% on storage costs vs. hyperscalers.

Akave Cloud works with a wide ecosystem of partners operating hundreds of petabytes of capacity, enabling deployments across multiple countries and powering sovereign data infrastructure. The stack is also pre-qualified with key enterprise apps such as Snowflake and others.

Modern Infra. Verifiable By Design

Whether you're scaling your AI infrastructure, handling sensitive records, or modernizing your cloud stack, Akave Cloud is ready to plug in. It feels familiar, but works fundamentally better.