Couchbase Server 3.0

Performance Status

02/19/2014

General news


  • 2.2.0-837 regression testing
  • New performance tests for memory fragmentation

Regression


  • MB-10259: Constant ep-engine crashes during load phase
  • MB-10250: Higher memory fragmentation in append only workloads

STILL NOT cLOSED


  • MB-10161:  Couchstore crashes during initial data load
  • MB-10164 :  Warmup is 1.5 slower in recent 3.0 builds
  • MB-10162 :  Views produce empty index during workload with ongoing mutations/indexing
  • MB-10167 :  20-25% higher beam.smp memory utilization in cases with views (2.5 vs 3.0)
  • MB-10192: ep-engine crashed when reading data through TAP
  • MB-10195:  ep-engine crashed when reading data through UPR

2.x DebT


  • MB-9825: Rebalance exited with reason bad_replicas
  • MB-9735: Slower and faster rebalance out
  • MB-9883: High CPU utilization of SSL proxy
  • MB-9676: Dramatically increasing latency of SET operations during rebalance tests
  • MB-9461: In heavy-DGM (<5%) scenarios with views and high cache miss rate rebalance/client operations can fail due to timed out requests to memcached/ep-engine
  • MB-9697: Unnecessary ejection during rebalance in

2.x DebT


  • MB-10191: CouchDB crashed due to 'Cannot allocate 467078560 bytes of memory (of type "heap").'
  • MB-9831: It takes more than 2 minutes to persist 1000 documents (~2KB each)
  • MB-9675: Inconsistent and dropping to zero disk utilization during heavy-dgm reb-out on SSD
  • MB-10134: Server-side moxy can cause slowdown of rebalance with multiple near-empty buckets

   https://www.couchbase.com/issues/issues/?filter=11702

BACKLOG


  • Intelligent regression detection
  • Specification/description of performance tests

BLOCKERS


  • CBIT-296: client machines for regression tests
  • CBIT-707: client machines for Atlas cluster
  • CBIT-654: new cluster for continuous tests
  • MB-10170: broken RPM packages
Made with Slides.com