Ivan Artiukhov created IGNITE-20618: ---------------------------------------
Summary: SQL: degradation of SELECT operations performance over time Key: IGNITE-20618 URL: https://issues.apache.org/jira/browse/IGNITE-20618 Project: Ignite Issue Type: Bug Components: sql Reporter: Ivan Artiukhov Attachments: ignite-config.json, sql-degr-insert.png, sql-degr-select.png Ignite 3, rev. 7d188ac7ae068bd69ff0e6e6cfe5a32ac5749d17 Benchmark: [https://github.com/gridgain/YCSB/blob/ycsb-2023.3/ignite3/src/main/java/site/ycsb/db/ignite3/IgniteSqlClient.java] The benchmark establishes an SQL {{Session}} and perform {{SELECTs}} via {{{}preparedStatement{}}}. {*}Steps{*}: * Start a 1 node cluster with the attached [^ignite-config.json] ** {*}raft.fsync = false{*}{*}{{*}} * Start the benchmark in pre-load mode – preload 100k entries: ** {{-db site.ycsb.db.ignite3.IgniteSqlClient -load -P /opt/pubagent/poc/config/ycsb/workloads/workloadc -threads 1 -p recordcount=10000 -p dataintegrity=true -p measurementtype=timeseries -p hosts=192.168.1.43 -p recordcount=100000 -p operationcount=100000}} * Start the benchmark in 100% read mode: ** {{-db site.ycsb.db.ignite3.IgniteSqlClient -load -P /opt/pubagent/poc/config/ycsb/workloads/workloadc -threads 1 -p recordcount=10000 -p dataintegrity=true -p measurementtype=timeseries -p hosts=192.168.1.43 -p recordcount=100000 -p operationcount=100000}} The following *stable* throughput is observed in preload mode ({{{}INSERT{}}}): !sql-degr-insert.png! The following *unstable* throughput is observed on reads ({{{}SELECT):{}}} {{!sql-degr-select.png!}} -- This message was sent by Atlassian Jira (v8.20.10#820010)