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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-25050

System uses virtual memory instead of available memory for preprocessing

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    • Prev.Sprint, S24-W44/45, S24-W50/51/52/1
    • 0.125

      Steps to reproduce:

      1. Start Zabbix Server with default StartPreProcessor count (3)
      2. Monitor memory usage of Zabbix Server over time
      3. Note that server begins to use virtual memory instead of physical memory, behaving very much like a memory leak.
      4. Perform a shutdown of zabbix_server and watch the virtual memory usage go down.
      5. Watch running processes using a tool like top and note that the process spending the most time terminating is the preprocessing manager.

      Result:

      Expected:

      Preprocessing manager to not use (and continue to increase usage) of virtual memory when physical memory is available.

        1. 278235_Process_details1.txt
          43 kB
          Michal Kudlacz
        2. 278237_Process_details.txt
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          Michal Kudlacz
        3. 7_0_trim_hourly.diff
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          Vladislavs Sokurenko
        4. Bildschirmfoto 2024-11-25 um 09.24.11.png
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          Christian Anton
        5. Bildschirmfoto 2024-11-25 um 09.28.05.png
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          Christian Anton
        6. history_size_7_0.diff
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          Vladislavs Sokurenko
        7. image-2024-08-15-16-55-28-490.png
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          Shane Arnold
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        23. image-2025-04-11-10-21-14-315.png
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          Smirnov Dmitriy
        24. link_tc_malloc_7_0_v2.diff
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          Vladislavs Sokurenko
        25. link_tc_malloc_7_0.diff
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          Vladislavs Sokurenko
        26. maps.txt
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          Smirnov Dmitriy
        27. mem_usage_preproc-manager.png
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          Christian Anton
        28. mem-utilization.png
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          Michal Kudlacz
        29. msedge_KqUzgQFVca.png
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          Shane Arnold
        30. msedge_LOqIPWrYeb.png
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          Shane Arnold
        31. msedge_tJLHWQ1ety.png
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          Shane Arnold
        32. prepressor_smaps.txt
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          Smirnov Dmitriy
        33. prepressor_smaps2.txt
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          Smirnov Dmitriy
        34. preprocessing_queue.png
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          Christian Anton
        35. screenshot-1.png
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          Michal Kudlacz
        36. screenshot-2.png
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          Michal Kudlacz
        37. screenshot-3.png
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        39. screenshot-5.png
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        41. screenshot-7.png
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        42. screenshot-8.png
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        43. screenshot-9.png
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        44. smaps.txt
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          Smirnov Dmitriy
        45. utlil_preprocessing_manager_workers.png
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          Christian Anton
        46. zabbix_agent2-proc.get.txt
          214 kB
          Shane Arnold
        47. zabbix_proxy.log-with_AddressSanitizer.tgz
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          Julianna Wilamowska
        48. zabbix_server_memory_utilisation_v5.yaml
          1 kB
          Vladislavs Sokurenko
        49. zabbix_server_patched_diaginfo.txt
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          Shane Arnold
        50. zabbix_server potential memory leak - memory and processes.txt
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          Shane Arnold
        51. zabbix diaginfo.txt
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          Shane Arnold
        52. zabbix pre-processor pmap.txt
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          Shane Arnold
        53. zabbix-server-pgsql_7.0.3-0.ZBX25050+ubuntu22.04_amd64.deb
          1.64 MB
          Edgar Akhmetshin
        54. zabbix-server-pgsql-dbgsym_7.0.3-0.ZBX25050+ubuntu22.04_amd64.deb
          143 kB
          Edgar Akhmetshin

            mbuz Maksym Buz
            clontarfx@gmail.com Shane Arnold
            Team B
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            Watchers:
            23 Start watching this issue

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