| Area | Improvement in 2.6.0.2 | |------|------------------------| | | Reduced GC pressure by reusing Kryo instances per worker; deserialization speed increased by ~12% in benchmarks using custom objects. | | ZooKeeper Heartbeats | Heartbeat writes are now batched for topologies with >500 tasks, cutting ZK node write rate by 40%. | | UI Performance | Storm UI’s /api/v1/topology/summary now paginates results, preventing timeouts for clusters with >1000 topologies. |
If you are looking at version "2.6.0.2", it implies a very stable, post-2.6.0 release. The real benefits of moving to Storm 2.6.x include: storm 2.6.0.2
Significant updates to core libraries like Kryo 5.4.0 (for improved serialization), Hadoop 3 , and ActiveMQ 5.18.2 . | Area | Improvement in 2
Upgrading a live Storm cluster requires caution. You cannot simply overwrite binaries. Follow this rolling upgrade strategy. | If you are looking at version "2
Are you interested in the features of the Oracle release or the security testing capabilities of the Storm executable? Apache Storm 2.6.2 Released