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  1. Apache IoTDB
  2. IOTDB-3197

[ Metadata recovery performance ] Different concurrent users create the same metadata, but the metadata recovery time varies greatly

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.14.0-SNAPSHOT
    • None
    • Core/Schema Manager
    • None

    Description

      master_0513_465b0cf
      创建的元数据信息:
      100sg,500dev,20w序列per dev , 共1亿序列

      1用户/10用户/20用户并发创建元数据耗时
      3127.65秒/675.27秒/520.38秒

      但,这3份元数据恢复耗时:

      332秒/1910秒/2364秒
      10用户,20用户并发创建的元数据,在恢复的时候耗时长。

      1用户恢复过程中监控cpu和io

      20用户恢复过程中监控cpu和io

      测试环境:
      1. 192.168.10.68 72C256G 1.2T HDD *9
      MAX_HEAP_SIZE="192G"
      MAX_DIRECT_MEMORY_SIZE="32G"
      schema_engine_mode=Schema_File
      磁盘

      2. benchmark生成数据的配置文件
      见附件

      Attachments

        1. image-2022-05-16-13-20-31-354.png
          27 kB
          刘珍
        2. image-2022-05-16-13-20-13-848.png
          45 kB
          刘珍
        3. config.properties.20client
          14 kB
          刘珍
        4. config.properties.1client
          14 kB
          刘珍
        5. config.properties.10client
          14 kB
          刘珍
        6. 20client_createschema_recovery.log
          229 kB
          刘珍
        7. 1client_createschema_recovery.log
          229 kB
          刘珍

        Activity

          People

            bigreybear ZhaoXin
            刘珍 刘珍
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            Dates

              Created:
              Updated:
              Resolved: