停止 supervisord 守护进程时，受监督的 kafka 0.8.1.1 (supervisord) 不会被杀死

Question

按照Kafka in supervisor mode 的答案，我也尝试过这样做。问题是，我的 kafka（版本 0.8.1.1）似乎打包了不同的运行脚本。所以我试图适应并产生了以下supervisord配置：

[program:kafka]
command=pidproxy /var/run/kafka.pid /opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties 
user=kafka
autostart=true
autorestart=true
startsecs=10
startretries=999
log_stdout=true
log_stderr=true
logfile=/var/log/kafka/supervisord-kafka.out
logfile_maxbytes=20MB
logfile_backups=10

我使用以下主管的rpm：

[root@dev-xxx yyy]# rpm -qi supervisor
Name        : supervisor                   Relocations: (not relocatable)
Version     : 3.0                               Vendor: obs://build.opensuse.org/home:presbrey
Release     : 13.1                          Build Date: Thu 13 Jun 2013 08:35:40 AM IDT

停止 supervisord 守护进程并不会杀死 kafka，见下文：

[root@dev-xxx yyy]# jps
3236 core
31378 QuorumPeerMain
31408 Jps
2964 Kafka
31293 supervisor
31246 nimbus

[root@dev-xxx yyy]# supervisorctl status
kafka                            RUNNING    pid 2963, uptime 1 day, 5:15:18
storm-nimbus                     RUNNING    pid 31246, uptime 0:02:06
storm-supervisor                 RUNNING    pid 31293, uptime 0:01:44
storm-ui                         RUNNING    pid 3236, uptime 5 days, 22:37:33
storm-zookeeper                  RUNNING    pid 31378, uptime 0:00:47


[root@dev-xxx yyy]# service supervisord stop
Stopping supervisord: Shut down
Waiting roughly 60 seconds for /var/run/supervisord.pid to be removed after child processes exit
Supervisord exited as expected in under 12 seconds


[root@dev-xxx yyy]# supervisorctl status
unix:///var/tmp/supervisor.sock no such file


[root@dev-xxx yyy]# jps
2964 Kafka
31474 Jps

Answer 1

好吧，正如我之前所说，stopasgroup=true 应该会有所帮助。我不是 100% 确定确切的原因，但据我了解，这是因为 kafka 是由 shell 脚本启动的，默认情况下，在拆除时，只会杀死该脚本。