Details
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Bug
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Resolution: Won't Fix
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Critical
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None
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5.5.0
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Untriaged
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Centos 64-bit
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Yes
Description
Throughput degraded because of:
- MB-25179: Enable connection buffer recycling
Setup:
- 2 nodes
- 1 bucket
- 100M items
Steps:
bin/ycsb load couchbase2 -P workloads/workloadd -p writeallfields=true -threads 25 -p couchbase.host=triton-srv-01-ip6.perf.couchbase.com -p couchbase.bucket=bucket-1 -p couchbase.upsert=true -p couchbase.epoll=true -p couchbase.boost=48 -p exportfile=ycsb_load_0.log -p couchbase.sslMode=none -p couchbase.certKeystoreFile=../ -p couchbase.certKeystorePassword= -p couchbase.password=password -p recordcount=100000000
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bin/ycsb run couchbase2 -P workloads/workloadd -p writeallfields=true -threads 160 -p couchbase.host=triton-srv-01-ip6.perf.couchbase.com -p couchbase.bucket=bucket-1 -p couchbase.upsert=true -p couchbase.epoll=true -p couchbase.boost=48 -p exportfile=ycsb_run_0.log -p couchbase.sslMode=none -p couchbase.certKeystoreFile=../certificates/data.keystore -p couchbase.certKeystorePassword=storepass -p couchbase.password=password -p operationcount=1000000000 -p maxexecutiontime=900 -p recordcount=100000000
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Timeline and logs: https://bit.ly/2GoORqM
Note the drop at build 5.1.0-1246.
(There'a also a later ~30% regression due to MB-22010 - tracked by MB-29013).