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  1. Couchbase Server
  2. MB-36249

SyncWrite throughput for persistence-related levels is ~30% slower than OBSERVE-based durability

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    • Triaged
    • No
    • KV-Engine Mad-Hatter GA

    Description

      Current Durability Throughput performance (YCSB Workload A) is about 30+% of the Replicate_To/Persist_To performance.

      Test: YCSB WorkloadA SDK2
      (ops/sec)      		 SDK3 alpha7
      (ops/sec)      		 Durability vs Replication/Persistence performance
      KPI = 75%
      Build  replicateTo=1, persistTo=1 durabilityLevel=MajorityPersistActive  
      6.5.0-4380 21,210 6,854  32%

       

      Test: YCSB WorkloadA SDK2
      (ops/sec)      		 SDK3 alpha7
      (ops/sec)      		 Durability vs Replication/Persistence performance
      KPI = 75%
      Build  replicateTo=1, persistTo=2 durabilityLevel=PersistMajority  
      6.5.0-4380 18,708 6,752  36%

       

      Additional data is available on showfast : 

      http://showfast.sc.couchbase.com/#/timeline/Linux/kv/durability/Throughput

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-36380 Lost wakeup can delay Flusher up to 10s

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-36424 couchstore node flushing doesn't respect node quota size

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-36804 [BP to 6.0.4] - couchstore node flushing doesn't respect node quota size

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-36627 Rebalance is not starting until the data loading stops

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              drigby Dave Rigby (Inactive)
              wayne Wayne Siu
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              Dates

                Created:
                Updated:
                Resolved:

                PagerDuty