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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-3850

Gaps in graphs based on Delta (speed per second) of SNMP input and output octet values (IF-MIB)

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    Details

    • Type: Incident report
    • Status: Closed
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 1.8.4
    • Fix Version/s: None
    • Component/s: Frontend (F), Server (S)
    • Labels:
      None
    • Environment:
      CentOS 5.6 x86_64 (inside VMWare ESXi 4.0 VM), Apache 2.2.3, Mysql 5.0.77, PHP 5.1.6, NET-SNMP 5.3.2.2-9

      Description

      When using calculated values for MIN and MAX Y axis on a graph plotted from "speed per second" SNMP queries, gaps appear in the graph. During the periods where the gaps exist, there is no missing data in the history. The gaps disappear if I change the MAX value to something closer to, or higher than, the highest value collected during that period. For example, if there is a gap where the values collected were ~25Mbps per second, the graph might appear to top out at 20Mbps, with gaps present in the areas where traffic exceeded 20Mbps. If I change the graph configuration to have a fixed MAX of 25000000, the gap goes away. A much lower MAX than that - say 21000000 or 22000000 - still results in gaps.

        Attachments

        1. ring2_gaps.jpg
          ring2_gaps.jpg
          68 kB
        2. ring2_input_values.png
          ring2_input_values.png
          106 kB
        3. ring2_no_gaps.jpg
          ring2_no_gaps.jpg
          70 kB

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              Assignee:
              Unassigned Unassigned
              Reporter:
              dvb David
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                Created:
                Updated:
                Resolved: