Estou executando um processo que serve um aplicativo web no Ubuntu 18.04. Depois de servir o aplicativo, ele interrompe o processo, mas deixa threads fantasmas em execução no processo principal, levando a um vazamento lento de memória. Eu sei que isso é um problema com o software, mas há algo que eu possa fazer do lado do Ubuntu para limpar esses threads obsoletos? Se eu executar, ps -elfTpoderei ver todos os threads fantasmas no processo, mas não tenho certeza se é seguro matá-los (ou mesmo como matá-los).
Aqui está a parte disso ps -elfTque é relevante:
F S UID PID SPID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
1 S ubuntu 32765 32765 1 0 80 0 - 8045 poll_s Jun11 ? 00:00:00 SCREEN voila --template=mytemplate
0 S ubuntu 32766 32766 32765 0 80 0 - 367365 ep_pol Jun11 pts/1 00:02:51 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 306 32765 0 80 0 - 367365 ep_pol Jun11 pts/1 00:10:50 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 307 32765 1 80 0 - 367365 ep_pol Jun11 pts/1 02:40:07 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 308 32765 0 80 0 - 367365 poll_s Jun11 pts/1 00:02:12 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 328 32765 0 80 0 - 367365 poll_s Jun11 pts/1 00:02:12 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 626 32765 0 80 0 - 367365 poll_s Jun12 pts/1 00:02:05 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 2622 32765 0 80 0 - 367365 poll_s Jun12 pts/1 00:01:57 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 2636 32765 0 80 0 - 367365 poll_s Jun12 pts/1 00:01:57 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 2773 32765 0 80 0 - 367365 poll_s Jun12 pts/1 00:01:56 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 2860 32765 0 80 0 - 367365 poll_s Jun12 pts/1 00:01:54 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 3735 32765 0 80 0 - 367365 poll_s Jun13 pts/1 00:01:42 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 3750 32765 0 80 0 - 367365 poll_s Jun13 pts/1 00:01:45 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 3768 32765 0 80 0 - 367365 poll_s Jun13 pts/1 00:01:42 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 4389 32765 0 80 0 - 367365 poll_s Jun14 pts/1 00:01:36 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 6769 32765 0 80 0 - 367365 poll_s Jun14 pts/1 00:01:30 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 7017 32765 0 80 0 - 367365 poll_s Jun14 pts/1 00:01:25 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 9562 32765 0 80 0 - 367365 poll_s Jun16 pts/1 00:01:03 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 11561 32765 0 80 0 - 367365 poll_s Jun17 pts/1 00:00:48 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 11577 32765 0 80 0 - 367365 poll_s Jun17 pts/1 00:00:50 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 12518 32765 0 80 0 - 367365 poll_s Jun18 pts/1 00:00:38 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 12947 32765 0 80 0 - 367365 poll_s Jun19 pts/1 00:00:31 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 12964 32765 0 80 0 - 367365 poll_s Jun19 pts/1 00:00:31 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 13415 32765 0 80 0 - 367365 poll_s Jun19 pts/1 00:00:27 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 13438 32765 0 80 0 - 367365 poll_s Jun19 pts/1 00:00:27 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 13455 32765 0 80 0 - 367365 poll_s Jun19 pts/1 00:00:28 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 22318 32765 0 80 0 - 367365 poll_s 06:57 pts/1 00:00:06 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 23225 32765 0 80 0 - 367365 poll_s 16:32 pts/1 00:00:00 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate
1 S ubuntu 32766 23239 32765 0 80 0 - 367365 poll_s 16:32 pts/1 00:00:00 /usr/bin/python3 /home/ubuntu/.local/bin/voila --template=mytemplate