Couchbase Server

Performance Status

04/16/2014

General News


  • N1QL performance testing: reloaded

Improvements


  • 4-5x lower XDCR latency (LAN)

NEW tickets


  • MB-10815: Rebalance-in with views (3 -> 4) fails due to "<<\"Partition 170 not in active nor passive set\">>"
  • MB-10824:  1 replica item gets stuck in disk write queue after initial data load
  • MB-10825:  Rebalance-out with views (4 -> 3) fails due to "wrong_rebalancer_pid"
    •
  • MB-10828:  Memcached crashed during rebalance after failover


STILL NOT CLOSED


  • MB-10533: Compaction doesn't make any progress in spite of high fragmentation
  • MB-10537: XDCR latency is higher in 3.0 when compaction is running on source side [TAP only]
  • MB-10501: Swap usage [by memcached] on system with sufficient memory resources
  • MB-10437: XDCR replication rate drops almost to zero in presence of light write workload on src side [TAP only]

STILL NOT CLOSED


  • MB-10370: ep-engine deadlock in write-heavy DGM cases
  • MB-10302: Bucket compaction doesn't catch up causing higher disk usage in write-heavy tests
  • MB-10273: View compaction doesn't catch up in basic non-DGM tests with view queries

2.x DebT


  • couchbase-bucket: 8 issues
  • xdcr: 3 issues
  • ns_server: 2 issues
  • view-engine: 2 issue

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

BACKLOG


  • [ongoing] New generation of view query performance tests
  • [ongoing] N1QL performance testing

BLOCKERS


  • Lack of rebalance stability
  • CBD-1239:  missing Windows builds
  • CBIT-1148: 172.23.96.14 is down
  • CBIT-1098: SSD drive on 172.23.96.13 seems to be broken
    •
  • CBIT-296: client machines for regression tests
  • CBIT-654: new cluster for continuous tests
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