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Former Member

sap host agent spawning zombies

I have installed sap hostagent 720 patch 194 on HP-UX ia64 / Oracle 11g systems. It's having the same problem on all of our servers. When I start the host agent, within seconds it starts spawning zombies. I know it to be the host agent as I perform this...

ps -ef |grep def

    root 29961 28836  1 10:01:00 ?         0:00 <defunct>

    root   304 28836  1 10:02:01 ?         0:00 <defunct>

    root 29186 28836  0 09:59:58 ?         0:00 <defunct>

Then look for the parent:

ps -ef |grep 28836

    root 29961 28836  1 10:01:00 ?         0:00 <defunct>

    root   304 28836  1 10:02:01 ?         0:00 <defunct>

    root   558 28836  0 10:03:02 ?         0:00 <defunct>

    root 29186 28836  0 09:59:58 ?         0:00 <defunct>

    root 28836     1  0 09:58:57 ?         0:00 /usr/sap/hostctrl/exe/saposcol -l -w60 pf=/usr/sap/hostctrl/exe/host_profile

I get this same thing on all of my systems. I have been trying to find a solution for this for some time so I hope someone here can help.

Thanks in advance,

Kyle

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5 Answers

  • Best Answer
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    Former Member
    Apr 06, 2015 at 03:27 PM

    It appears that the problem is related to our version of the VM-ware we are using, we are now in the process of upgrading our systems to include VM-ware.  Thanks for all the replies.

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    Former Member
    Mar 27, 2015 at 08:16 AM

    Hello Kyle,

    Please check with your Operating system team if this issue exists for other os processes which are started in the server.

    Also please try to install n-1 version of hostagent and see if the same issue is happenning.

    Do let me know your findings.

    Thanks,

    Sowmya

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  • Mar 27, 2015 at 09:14 AM

    Hello Kyle,

    Can you please try to download and upgrade Host control to latest version (SAP HOST AGENT 7.20 SP205  / 7.20 SP206 ) and let us know result.

    ./saphostexec -upgrade

    Regards,

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    Former Member
    Mar 27, 2015 at 12:34 PM

    I will certainly try upgrading again. I've already upgraded the hostagent at least once, maybe twice since this problem started.

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    • Former Member Former Member

      Hi,

      but if I just use saphostctrl -stop, it'll kill the offending parent and all child processes go away even though they are defunct

      It could be,but as far as i know these are the processes which get detached from their parent & then sitting into the process table at OS level,as per OS standards system tries to clean these type of processes in a defined time manner,but fails to clean out completely (An OS expert or OS support can guide you better then mine explanations on this).

      So as per my suggestions here we could do two things,first try to restart the complete system & check again

      Second is to update the current kernel with the latest patch available with again complete restart of system.

      You could refer SAP Note  1246652 - Child processes of a work process remain as zombie processes

      Hope this will help you.

      Good luck !!

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    Former Member
    Mar 27, 2015 at 01:58 PM

    Could you confirm current SAP Host agent version after upgrade ?

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