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Apache Uniffle vs Countly

A side-by-side editorial comparison of Apache Uniffle and Countly — release velocity, themes, recent moves, and the top alternatives to consider.

Apache Uniffle vs Countly: at a glance

FeatureApache UniffleCountly
SectorAnalyticsAnalytics
Velocity score0.05.0
Sparks · 30d00
Top themesremote-shuffle, spark, netty-transport, partition-skewproduct-analytics, self-hosted, security-patches, access control
Last editorial update3mo ago15h ago
WebsiteVisit →Visit →

What is Apache Uniffle?

Uniffle's remote shuffle service finally makes its fast path the default

Apache Uniffle is a remote shuffle service for Spark, MapReduce and Tez. The 0.10.0 release in September 2025 flipped the Netty-based transport (GRPC_NETTY) from opt-in to the default, promoted partition reassignment to general availability, and added partition splitting for oversized shuffle partitions. Releases before that were largely stabilization work: a dashboard in 0.9.0, log and layout cleanups in 0.9.1, and pure license housekeeping in 0.9.2.

Read the full Apache Uniffle trajectory →

What is Countly?

Countly 25.03.59 defaults to Node 26, supports MongoDB 9 and tightens app scoping.

Countly 25.03.59 on November 13 is a large LTS patch. Clean installs and Docker images move to Node.js 26 and MongoDB 9.0, with older versions still working, and arm64 Docker images arrive. Security fixes tighten which apps a scoped token or member can reach across exports, dashboards, alerts and data tools, and wrong two-factor codes now count toward lockout.

Read the full Countly trajectory →

Apache Uniffle vs Countly: editorial side-by-side

A0.0

Uniffle's remote shuffle service finally makes its fast path the default

◆ Current state

Apache Uniffle is a remote shuffle service for Spark, MapReduce and Tez. The 0.10.0 release in September 2025 flipped the Netty-based transport (GRPC_NETTY) from opt-in to the default, promoted partition reassignment to general availability, and added partition splitting for oversized shuffle partitions. Releases before that were largely stabilization work: a dashboard in 0.9.0, log and layout cleanups in 0.9.1, and pure license housekeeping in 0.9.2.

◆ Where it's heading

The arc runs from 'Netty is available' in 0.8.0, to 'Netty is production ready' in 0.9.0, to 'Netty is on by default' in 0.10.0 — a three-release migration off the original gRPC transport, executed conservatively. The parallel theme is huge-partition survival: reassignment and splitting both exist to stop a single skewed partition from taking down a shuffle write. Uniffle is optimizing for the failure modes of very large Spark jobs rather than for breadth of features.

◆ Prediction

The Rust shuffle server introduced experimentally in 0.9.0 is the obvious next promotion candidate, following the same available-then-default path Netty took. The release notes do not indicate a timeline.

C
Countly
ANALYTICS
5.0

Countly 25.03.59 defaults to Node 26, supports MongoDB 9 and tightens app scoping.

◆ Current state

Countly 25.03.59 on November 13 is a large LTS patch. Clean installs and Docker images move to Node.js 26 and MongoDB 9.0, with older versions still working, and arm64 Docker images arrive. Security fixes tighten which apps a scoped token or member can reach across exports, dashboards, alerts and data tools, and wrong two-factor codes now count toward lockout.

◆ Where it's heading

Countly is still mostly hardening access control, carrying the token-scoping work from 25.03.58 into every plugin that reads or changes app data. At the same time it keeps the self-hosted stack on current runtimes.

◆ Prediction

Expect a 24.05 patch that backports these scoping fixes, as 24.05.55 did after 25.03.58.

Alternatives to Apache Uniffle and Countly

Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Apache Uniffle or Countly.

See all Apache Uniffle alternatives → · See all Countly alternatives →

Recent activity from Apache Uniffle and Countly

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 17h agoCountlyCountly 25.03.59: Node 26, MongoDB 9, app scoping fixes
  2. 14d agoCountlyCountly 24.05.55: token rules backported, Node 22 move
  3. 17d agoCountlyCountly 25.03.58: token scoping, revocation and access fixes
  4. 19d agoCountlyCountly 25.03.57-LTS distrusts emSign roots, fixes A/B setup
  5. 21d agoCountlyCountly 25.03.56-LTS: Node CVE patch, licence overdue banner
  6. 1mo agoCountlyCountly 25.03.55: throttled active-user refresh, explicit DB names
  7. 1y agoApache UniffleNetty transport becomes the default in Uniffle 0.10 ⚡
  8. 1y agoApache UniffleLicense and NOTICE housekeeping in Uniffle 0.9.2
  9. 1y agoApache UniffleDashboard and block-ID layout cleanup in Uniffle 0.9.1
  10. 2y agoApache Unifflev0.9.1: [MINOR] chore: Fix the issue of license loss (#2246)
  11. 2y agoApache Unifflev0.9.1-rc1: Revert "Update create-package.sh (#2019)"
  12. 2y agoApache UniffleUniffle 0.9 adds a dashboard and a Rust shuffle server

Frequently asked questions

What is the difference between Apache Uniffle and Countly?

They serve adjacent needs but don't currently overlap on shipped themes. Countly is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Apache Uniffle better than Countly?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Countly is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to Apache Uniffle?

Top Apache Uniffle alternatives in Analytics are ranked by recent ship velocity. Browse the "Apache Uniffle alternatives" section above for the current picks, or visit /alternatives/apache-uniffle for the full list with editorial commentary on each.

What are the best alternatives to Countly?

Top Countly alternatives in Analytics are ranked by recent ship velocity. Browse the "Countly alternatives" section above for the current picks, or visit /alternatives/countly-server for the full list with editorial commentary on each.