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Zabbix doesn't update trends for some items

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  • gorekBoy
    Junior Member
    • Jan 2020
    • 10

    #1

    Zabbix doesn't update trends for some items

    Hello

    Few weeks ago I updated Zabbix server from 4.2.3 to 4.4.10.
    After update Zabbix stopped create new trends entries for some Items.

    New history entries for the same items (the same itemid) are added to database successfully.

    I observed about 5-6 items with this issue. Mostly of them are get data from user parameters.
    User parameters was not changed before or after Zabbix update and they run correctly and return correct values.
    Items are updated once a day.

    I executed query as below to confirm last data entries:
    Code:
    SELECT to_timestamp(clock) as time,clock,value_min,value_avg,value_max FROM trends_uint WHERE itemid=28626 AND clock > 1603324800 ORDER BY clock DESC;
    
    time | clock | value_min | value_avg | value_max
    ------------------------+------------+-------------+-------------+-------------
    2020-10-23 09:00:00+02 | 1603436400 | 35656028831 | 35656028831 | 35656028831
    2020-10-22 09:00:00+02 | 1603350000 | 35650777759 | 35650777759 | 35650777759
    (2 rows)
    For short period (when Zabix read data from tables named history* ) everything looks fine but for longest period I see chart like in attachment.

    In Zabbix server logs I can't see any errors.

    Have anyone similar issue?
    Attached Files
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