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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-22126

Trends recalculations when older data from the proxy comming

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    • Team A
    • Sprint 95 (Dec 2022), Sprint 96 (Jan 2023)
    • 0.5

    Description

      Let's take a quite loaded installation.
      The proxy sends data (due to some problems) that is older than the current hour.
      The server recalculates trends => these are heavy queries => busy history syncers, database performance problems

      48010:20221222:050526.705 slow query: 44.008837 sec, "select distinct itemid from trends_uint where clock>=1671678000 and (itemid in XX)
      ......
      48010:20221222:050618.124 slow query: 51.351171 sec, "select distinct itemid from trends_uint where clock>=1671678000 and (itemid in XX)
      .....
       48010:20221222:050716.513 slow query: 58.368658 sec, "select distinct itemid from trends_uint where clock>=1671678000 and (itemid in XX}
      

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              vso Vladislavs Sokurenko
              elina.kuzyutkina Elina Kuzyutkina
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                Updated:
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