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시스템 종료/재부팅 전에 서비스가 정상적으로 종료될 때까지 기다립니다.

tag-icon • tag-icon systemd
시스템 종료/재부팅 전에 서비스가 정상적으로 종료될 때까지 기다립니다.

시스템 종료 또는 재부팅 시 정상적으로 종료되는 시스템 서비스를 어떻게 작성합니까? 특히, 정상적으로 종료될 때까지 시스템 종료를 지연해야 합니다.

종료하는 데 10초가 걸리는 서비스가 있습니다: /usr/local/bin/shutdowntest.sh:

#!/bin/bash

SHUTDOWN=0
SHUTDOWN_TIME=10
TRAPPED_SIGNAL=

function onexit() {
  TRAPPED_SIGNAL=$1
  SHUTDOWN=1
}

for SIGNAL in SIGINT SIGTERM SIGHUP SIGPIPE SIGALRM SIGUSR1 SIGUSR2; do
  trap "onexit $SIGNAL" $SIGNAL
done

echo >&2 "shutdowntest running"
while ((!SHUTDOWN || SHUTDOWN_TIME>0)); do
  if [[ -n "$TRAPPED_SIGNAL" ]]; then
    echo >&2 "shutdowntest received signal $TRAPPED_SIGNAL"
    TRAPPED_SIGNAL=
  elif ((SHUTDOWN)); then
    echo >&2 "shutdowntest Shutting down: $SHUTDOWN_TIME more sleeps"
    SHUTDOWN_TIME=$((SHUTDOWN_TIME-1))
    sleep 1
  else
    sleep 10
  fi
done
echo >&2 "shutdowntest Finished shutting down; quitting"

/etc/systemd/system/shutdowntest.service에서 TimeoutStopSec를 15초로 설정했습니다.

[Service]
ExecStart=/usr/local/bin/shutdowntest.sh
TimeoutStopSec=15

[Install]
WantedBy=multi-user.target

을 실행하면 sudo systemctl stop shutdowntest.service서비스가 다음에 따라 정상적으로 종료됩니다 /var/log/syslog.

00:57:11 shutdowntest.sh[1980]: shutdowntest received signal SIGTERM
00:57:11 shutdowntest.sh[1980]: shutdowntest Shutting down: 10 more sleeps
00:57:11 systemd[1]: Stopping shutdowntest.service...
00:57:11 shutdowntest.sh[1980]: Terminated
00:57:11 shutdowntest.sh[1980]: shutdowntest Shutting down: 9 more sleeps
00:57:12 shutdowntest.sh[1980]: shutdowntest Shutting down: 8 more sleeps
00:57:13 shutdowntest.sh[1980]: shutdowntest Shutting down: 7 more sleeps
00:57:14 shutdowntest.sh[1980]: shutdowntest Shutting down: 6 more sleeps
00:57:15 shutdowntest.sh[1980]: shutdowntest Shutting down: 5 more sleeps
00:57:16 shutdowntest.sh[1980]: shutdowntest Shutting down: 4 more sleeps
00:57:17 shutdowntest.sh[1980]: shutdowntest Shutting down: 3 more sleeps
00:57:18 shutdowntest.sh[1980]: shutdowntest Shutting down: 2 more sleeps
00:57:19 shutdowntest.sh[1980]: shutdowntest Shutting down: 1 more sleeps
00:57:20 shutdowntest.sh[1980]: shutdowntest Finished shutting down; quitting
00:57:20 systemd[1]: Stopped shutdowntest.service.

그러나 나 sudo reboot또는 sudo shutdown now머신이 정상적으로 종료할 충분한 시간도 없이 서비스가 종료되고 /var/log/syslog는 1초 후에 종료됩니다.

00:59:30 shutdowntest.sh[2014]: Terminated
00:59:30 shutdowntest.sh[2014]: shutdowntest received signal SIGTERM
00:59:30 shutdowntest.sh[2014]: shutdowntest Shutting down: 10 more sleeps
00:59:30 systemd[1]: Stopping shutdowntest.service...

머신이 종료되거나 재부팅될 때 서비스 종료 시간( TimeoutSec또는 )이 제공되는지 확인하는 방법은 무엇입니까?TimeoutStopSec

답변1

그만큼비곤의 코멘트맞다. 를 보고 있었지만 /var/log/syslog이것은 에 의해 작성되었습니다 rsyslog.service. 시스템은 종료 프로세스 초기에 중지됩니다(아래 "중지된 시스템 로깅 서비스"에 표시됨).

대신 영구 저널 로깅을 활성화한 후( Storage=persistentin /etc/systemd/journald.conf및 systemctl restart systemd-journald), 시스템이 수정된 후 또는 전원 키를 누른 후(ACPI G2 Soft Off) journalctl -b-1 -u shutdowntest.service내 서비스가 종료될 수 있는 충분한 시간이 실제로 제공되었음을 보여줍니다 .rebootshutdown

journalctl -b-1 -u shutdowntest.service -u rsyslog.service -u systemd-logind
-- Logs begin at Mon 2018-03-26 18:39:12 UTC, end at Mon 2018-03-26 20:22:34 UTC. --
…
Mar 26 18:46:46 myhost systemd-logind[1202]: Power key pressed.
Mar 26 18:46:46 myhost systemd-logind[1202]: Powering Off...
Mar 26 18:46:46 myhost systemd-logind[1202]: System is powering down.
Mar 26 18:46:46 myhost shutdowntest.sh[1237]: Terminated
Mar 26 18:46:46 myhost shutdowntest.sh[1237]: shutdowntest received signal SIGTERM
Mar 26 18:46:46 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 10 more sleeps
Mar 26 18:46:46 myhost systemd[1]: Stopping shutdowntest.service...
Mar 26 18:46:46 myhost systemd[1]: Stopping Login Service...
Mar 26 18:46:46 myhost systemd[1]: Stopped Login Service.
Mar 26 18:46:46 myhost systemd[1]: Stopping System Logging Service...
Mar 26 18:46:47 myhost systemd[1]: Stopped System Logging Service.
Mar 26 18:46:47 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 9 more sleeps
Mar 26 18:46:48 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 8 more sleeps
Mar 26 18:46:49 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 7 more sleeps
Mar 26 18:46:50 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 6 more sleeps
Mar 26 18:46:51 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 5 more sleeps
Mar 26 18:46:52 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 4 more sleeps
Mar 26 18:46:53 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 3 more sleeps
Mar 26 18:46:54 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 2 more sleeps
Mar 26 18:46:55 myhost shutdowntest.sh[1237]: shutdowntest Shutting down: 1 more sleeps
Mar 26 18:46:56 myhost shutdowntest.sh[1237]: shutdowntest Finished shutting down; quitting
Mar 26 18:46:56 myhost systemd[1]: Stopped shutdowntest.service.

관련 정보