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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-21400

Incorrect description for "maxlines" in the manual

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    • Team A
    • Sprint 91 (Aug 2022)
    • 1

    Description

      Following description in the manual is incorrect.

      https://www.zabbix.com/documentation/4.0/en/manual/config/items/itemtypes/log_items#using-maxdelay-parameter

      https://www.zabbix.com/documentation/5.0/en/manual/config/items/itemtypes/log_items#using-maxdelay-parameter

      https://www.zabbix.com/documentation/6.0/en/manual/config/items/itemtypes/log_items#using-maxdelay-parameter

      https://www.zabbix.com/documentation/6.2/en/manual/config/items/itemtypes/log_items#using-maxdelay-parameter

      Built-in protection against overload consists of a configurable 'maxlines' parameter (protects server from too many incoming matching log lines) and a 4'maxlines'* limit (protects host CPU and I/O from overloading by agent in one check). 

      4*'maxlines' is incorrect.

      10*'maxlines' is the correct formula.

       

      For reference, In The "Important notes" section describes it as "10 times".

      To find the required string Zabbix will process 10 times more new lines than set in MaxLinesPerSecond. Thus, for example, if a log[] or logrt[] item has Update interval of 1 second, by default the agent will analyze no more than 200 log file records and will send no more than 20 matching records to Zabbix server in one check. 

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            adancis Arturs Dancis
            Taiki Fujiwara Taiki Fujiwara
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