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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2022/01/22 11:51:00 UTC
[jira] [Created] (IOTDB-2471) [compaction] Pre-release 2 merges slower than pre-release 1
刘珍 created IOTDB-2471:
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Summary: [compaction] Pre-release 2 merges slower than pre-release 1
Key: IOTDB-2471
URL: https://issues.apache.org/jira/browse/IOTDB-2471
Project: Apache IoTDB
Issue Type: Bug
Components: Core/Server
Affects Versions: 0.13.0-SNAPSHOT
Reporter: 刘珍
Attachments: pre1-iotdb-engine.properties, pre2-iotdb-engine.properties
问题描述:
0.13.0 预发版2 比预发版1 合并慢
1.数据备份相同,预发版1合并完成耗时6小时(合并完成时有290个tsfile)。
预发版2 已经合并了21个小时,还有17743个tsfile。
2.iotdb-env.sh相同
3.预发1的配置文件和预发版2有不同,配置文件见附件。
2个版本的配置参数均为:
compaction_write_throughput_mb_per_sec=32
不同的配置参数有:
版本1 版本2
enable_unseq_space_compaction=true # enable_unseq_space_compaction=false
avg_series_point_number_threshold=100000 # avg_series_point_number_threshold=10000
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