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Zabbix_sender not killing it's semaphores after executing

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  • santiagobiali
    Junior Member
    • Apr 2022
    • 5

    #1

    Zabbix_sender not killing it's semaphores after executing

    zabbix_sender (Zabbix) 6.0.3
    Revision 506e2b51e2 4 April 2022, compilation time: May 10 2022 11:57:27
    Compiled with OpenSSL 1.1.1n 15 Mar 2022
    Running with OpenSSL 1.1.1o 3 May 2022

    Linux gateway 5.15.26-gentoo Home SMP Wed Mar 9 08:21:26 -03 2022 x86_64 Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz GenuineIntel GNU/Linux

    --------------------------

    It all started when I got an error when running a script in crontab:
    Code:
    cannot create Semaphore: [28] No space left on device
    [CODE]ipcs -s | grep zabbix | wc -l/CODE] showed me I had reached the limit of semaphores configured in the kernel.

    Here is the command that I run:

    Code:
    zabbix_sender -z 192.168.1.198 -i /tmp/zabbix_iptable -T -vv
    zabbix_sender [16510]: DEBUG: In connect_to_server() [192.168.1.198]:10051 [timeout:60, connection timeout:3]
    zabbix_sender [16510]: DEBUG: In is_ip4() ip:'192.168.1.198'
    zabbix_sender [16510]: DEBUG: End of is_ip4():SUCCEED
    zabbix_sender [16510]: DEBUG: answer [{"response":"success","info":"processed: 28; failed: 0; total: 28; seconds spent: 0.000393"}]
    Response from "192.168.1.198:10051": "processed: 28; failed: 0; total: 28; seconds spent: 0.000393"
    sent: 28; skipped: 0; total: 28
    Even after succeded and exited, the semaphore is still active and I have to kill it before it explodes the limit again.
  • Answer selected by santiagobiali at 05-09-2022, 20:13.
    Markku
    Senior Member
    Zabbix Certified SpecialistZabbix Certified ProfessionalZabbix Certified Expert
    • Sep 2018
    • 1781

    From Zabbix 6.0.4 release notes (https://www.zabbix.com/rn/rn6.0.4):
    ZBX-20754 Fixed Zabbix sender and Zabbix JS not releasing semaphores upon exit
    Markku

    Comment

    • Markku
      Senior Member
      Zabbix Certified SpecialistZabbix Certified ProfessionalZabbix Certified Expert
      • Sep 2018
      • 1781

      #2
      From Zabbix 6.0.4 release notes (https://www.zabbix.com/rn/rn6.0.4):
      ZBX-20754 Fixed Zabbix sender and Zabbix JS not releasing semaphores upon exit
      Markku

      Comment

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