During the week ... I start Webex App from Ubuntu and then exit / close the app on a daily basis ( right-click on the webex icon on the top right then select quit ).
These seem to leave defunct processes in Linux / Ubuntu:
$ ps axfu | grep CiscoCollabHost
jsalvo 994464 0.0 0.0 9044 648 pts/0 S+ 17:17 0:00 | | \_ grep --color=auto CiscoCollabHost
jsalvo 12224 0.3 0.7 8297980 118152 ? SLl Apr20 82:42 \_ /opt/Webex/bin/CiscoCollabHost /opt/Webex/lib/ libWebexAppLoader.so /Start
jsalvo 12230 0.0 0.0 269976 0 ? S Apr20 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --no-zygote-sandbox --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 12231 0.0 0.0 269960 80 ? S Apr20 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 12233 0.0 0.0 269988 108 ? S Apr20 0:00 | | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 92891 0.0 0.0 0 0 ? Z Apr21 0:00 | | \_ [CiscoCollabHost] <defunct>
jsalvo 12338 0.3 0.0 0 0 ? Z Apr20 85:53 | \_ [CiscoCollabHost] <defunct>
jsalvo 12473 0.0 0.0 0 0 ? Z Apr20 4:43 | \_ [CiscoCollabHost] <defunct>
jsalvo 145557 0.0 1.5 7743160 254260 ? SLl Apr22 13:51 \_ /opt/Webex/bin/CiscoCollabHost /opt/Webex/lib/ libWebexAppLoader.so /Start
jsalvo 145561 0.0 0.0 269980 10504 ? S Apr22 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --no-zygote-sandbox --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 145562 0.0 0.0 269960 10356 ? S Apr22 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 145564 0.0 0.0 269984 10564 ? S Apr22 0:00 | | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 153517 0.0 0.0 0 0 ? Z Apr22 0:00 | | \_ [CiscoCollabHost] <defunct>
jsalvo 145670 0.0 0.0 0 0 ? Z Apr22 10:04 | \_ [CiscoCollabHost] <defunct>
jsalvo 145803 0.0 0.0 0 0 ? Z Apr22 0:54 | \_ [CiscoCollabHost] <defunct>
jsalvo 223848 0.7 4.9 8847672 799716 ? SLl Apr24 149:41 \_ /opt/Webex/bin/CiscoCollabHost /opt/Webex/lib/ libWebexAppLoader.so /Start
jsalvo 223852 0.0 0.0 269976 10472 ? S Apr24 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --no-zygote-sandbox --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 223853 0.0 0.0 269960 10340 ? S Apr24 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 223855 0.0 0.0 269984 10548 ? S Apr24 0:00 | | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 427779 0.0 0.0 0 0 ? Z Apr27 0:00 | | \_ [CiscoCollabHost] <defunct>
jsalvo 223962 0.6 0.0 0 0 ? Z Apr24 127:38 | \_ [CiscoCollabHost] <defunct>
jsalvo 224086 0.0 0.0 0 0 ? Z Apr24 7:28 | \_ [CiscoCollabHost] <defunct>
jsalvo 462410 0.4 5.7 8822552 923316 ? SLl Apr28 63:09 \_ /opt/Webex/bin/CiscoCollabHost /opt/Webex/lib/ libWebexAppLoader.so /Start
jsalvo 462414 0.0 0.0 269980 10532 ? S Apr28 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --no-zygote-sandbox --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 462415 0.0 0.0 269960 10392 ? S Apr28 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 462417 0.0 0.0 269984 10560 ? S Apr28 0:00 | | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 558985 0.0 0.0 0 0 ? Z Apr29 0:00 | | \_ [CiscoCollabHost] <defunct>
jsalvo 462522 0.7 0.0 0 0 ? Z Apr28 96:02 | \_ [CiscoCollabHost] <defunct>
jsalvo 465930 0.0 0.0 0 0 ? Z Apr28 3:37 | \_ [CiscoCollabHost] <defunct>
jsalvo 669018 1.8 7.9 8391120 1283352 ? SLl May01 168:02 \_ /opt/Webex/bin/CiscoCollabHost /opt/Webex/lib/ libWebexAppLoader.so /Start
jsalvo 669022 0.0 0.0 269980 11232 ? S May01 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --no-zygote-sandbox --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 669023 0.0 0.0 269960 10468 ? S May01 0:00 | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 669025 0.0 0.0 269984 13736 ? S May01 0:00 | | \_ /opt/Webex/bin/CiscoCollabHostCef --type=zygote --log-severity=disable --lang=en-US --user-data-dir=/home/jsalvo/.local/share/Webex --log-file=/opt/Webex/bin/debug.log
jsalvo 939866 0.0 0.0 0 0 ? Z May06 0:00 | | \_ [CiscoCollabHost] <defunct>
jsalvo 669127 1.3 0.0 0 0 ? Z May01 121:17 | \_ [CiscoCollabHost] <defunct>
jsalvo 669263 0.0 0.0 0 0 ? Z May01 8:11 | \_ [CiscoCollabHost] <defunct>
I have to clean them up manually to free up memory.
What I have :
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.4 LTS"
