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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-23888

Negative lookahead in proc.num doesn't work with zabbix agent2

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    • Icon: Problem report Problem report
    • Resolution: Fixed
    • Icon: Trivial Trivial
    • 6.0.25
    • Agent (G)
    • None
    • Zabbix server 6.0.13(HA)
      Zabbix agent 4.0.6 -> Zabbix agent2 6.0.19
    • Team A
    • S2401-1, S2401-2, S24-W6/7, S24-W8/9, S24-W10/11
    • 2

      Expected:
      Consistent behavior with zabbix agent.

      Issue:
      It is reported that negative lookahead in cmdline parameter of proc.num is not working after changing from zabbix agent(4.0.6) to zabbix agent2(6.0.19).

      Here's the result I have tested.
      zabbix_get is 6.0.25. And libpcre2(10.40) is installed on both two hosts.

      • Zabbix agent(6.0.25)
        $ ps -ef |grep sshd
        root        1453       1  0 18:47 ?        00:00:00 sshd: username [priv]
        username      1472    1453  0 18:47 ?        00:00:00 sshd: username@pts/0
        root        1598       1  0 18:47 ?        00:00:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
        username     37866    1473  0 18:51 pts/0    00:00:00 grep --color=auto sshd
        $
        
        $ zabbix_get -s 192.168.64.15 -k proc.num[,,,"sshd:"]
        3
        $ zabbix_get -s 192.168.64.15 -k proc.num[,,,"sshd:(?! username)"]
        1
        $
        

        The correct values are acquired.

      • Zabbix agent2(6.0.25)
        $ ps -aux |grep ssh
        root         743  0.0  0.2  16228  8192 ?        Ss   17:21   0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
        root        1541  0.0  0.2  21980 10112 ?        Ss   17:21   0:00 sshd: username [priv]
        username      1543  0.0  0.1  21980  6192 ?        S    17:21   0:01 sshd: username@pts/0
        username      6690  0.0  0.0   4296  1792 pts/0    S+   18:06   0:00 grep --color=auto ssh
        $ 
        
        $ zabbix_get -s 192.168.64.14 -k proc.num[,,,"sshd:"]
        3
        $ zabbix_get -s 192.168.64.14 -k proc.num[,,,"sshd:(?! username)"]
        0
        $
        

        The value 0 is wrong. It should be 1.

      Regards,

            dgoloscapov Dmitrijs Goloscapovs
            shirai Sayaka Hirai
            Team A
            Votes:
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              Created:
              Updated:
              Resolved: