无法将主管与 Apache Kafka 一起使用
Cannot use supervisor with Apache Kafka
我有一台安装了 Apache Kafka 的 Ubuntu 16.04 机器。目前，我可以使用具有以下内容的 start_kafka.sh 脚本使其完美运行：
JMX_PORT=17264 KAFKA_HEAP_OPTS="-Xms1024M -Xmx3072M" /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-server-start.sh -daemon /home/kafka/kafka_2.11-0.10.1.0/config/server.properties
现在，我想使用 supervisor 在进程失败时自动重启进程，并在重启机器后立即启动。问题是我无法 supervisor 启动 Kafka。
我使用 pip 安装了 supervisor 并将此配置文件放在 /etc/supervisord.conf:
; Supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
[unix_http_server]
file=/tmp/supervisor.sock ; (the path to the socket file)
[supervisord]
logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10 ; (num of main logfile rotation backups;default 10)
loglevel=info ; (log level;default info; others: debug,warn,trace)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=false ; (start in foreground if true;default false)
minfds=1024 ; (min. avail startup file descriptors;default 1024)
minprocs=200 ; (min. avail process descriptors;default 200)
; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL for a unix socket
[program:kafka]
command=/home/kafka/kafka_2.11-0.10.1.0/start_kafka.sh ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
startsecs=10 ; # of secs prog must stay up to be running (def. 1)
startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; when to restart if exited after running (def: unexpected)
;exitcodes=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
stopsignal=TERM ; signal used to kill process (default TERM)
stopwaitsecs=180 ; max num secs to wait b4 SIGKILL (default 10)
stdout_logfile=NONE ; stdout log path, NONE for none; default AUTO
;environment=A="1",B="2" ; process environment additions (def no adds)
当我尝试启动 Kafka 时，出现以下错误：
# supervisorctl start kafka
kafka: ERROR (spawn error)
主管日志（位于 /tmp/supervisord.log）包含以下内容：
2017-01-23 22:10:24,532 INFO spawned: 'kafka' with pid 21311
2017-01-23 22:10:24,536 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:25,542 INFO spawned: 'kafka' with pid 21312
2017-01-23 22:10:25,559 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:27,562 INFO spawned: 'kafka' with pid 21313
2017-01-23 22:10:27,567 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:30,571 INFO spawned: 'kafka' with pid 21314
2017-01-23 22:10:30,576 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:31,578 INFO gave up: kafka entered FATAL state, too many start retries too quickly
不得不说，我已经尝试删除 start_kafka.sh 中的 -daemon 标志以与 supervisor 一起使用，但没有成功。
有人知道发生了什么事吗？
以下主管配置文件适用于我，取自 https://github.com/miguno/wirbelsturm via https://github.com/miguno/puppet-kafka。主要区别在于它使用 kafka-run-class.sh 而不是 kafka-server-start.sh.
请注意，您需要更新各种路径以匹配您的设置，例如您必须将 /opt/kafka/bin/kafka-run-class.sh 更改为 /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-run-class.sh。
[program:kafka-broker]
command=/opt/kafka/bin/kafka-run-class.sh kafka.Kafka /opt/kafka/config/server.properties
numprocs=1
numprocs_start=0
priority=999
autostart=true
autorestart=true
startsecs=10
startretries=999
exitcodes=0,2
stopsignal=INT
stopwaitsecs=120
stopasgroup=true
directory=/
user=kafka
redirect_stderr=false
stdout_logfile=/var/log/supervisor/kafka-broker/kafka-broker.out
stdout_logfile_maxbytes=20MB
stdout_logfile_backups=5
stderr_logfile=/var/log/supervisor/kafka-broker/kafka-broker.err
stderr_logfile_maxbytes=20MB
stderr_logfile_backups=10
environment=JMX_PORT=9999,KAFKA_GC_LOG_OPTS="-Xloggc:/var/log/kafka/daemon-gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps",KAFKA_HEAP_OPTS="-Xms512M -Xmx512M -XX:NewSize=200m -XX:MaxNewSize=200m",KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false",KAFKA_JVM_PERFORMANCE_OPTS="-server -XX:+UseCompressedOops -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+CMSScavengeBeforeRemark -XX:+DisableExplicitGC -Djava.awt.headless=true",KAFKA_LOG4J_OPTS="-Dlog4j.configuration=file:/opt/kafka/config/log4j.properties",KAFKA_OPTS="-XX:CMSInitiatingOccupancyFraction=70 -XX:+PrintTenuringDistribution"
我终于设法让 supervisor 与 Kafka 一起工作了两个变化：
- 在没有
-daemon 标志的情况下部署 Kafka，因为主管需要 non-daemozined 进程来管理
- 在主管配置文件中明确定义 Java 路径
这是工作配置：
start_kafka.sh
JMX_PORT=17264 KAFKA_HEAP_OPTS="-Xms1024M -Xmx3072M" /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-server-start.sh /home/kafka/kafka_2.11-0.10.1.0/config/server.properties
supervisord.conf
[unix_http_server]
file=/var/run/supervisor.sock ; (the path to the socket file)
chmod=0700 ; sockef file mode (default 0700)
[supervisord]
logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP)
; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = /etc/supervisor/conf.d/*.conf
[program:kafka]
command=/home/kafka/kafka_2.11-0.10.1.0/start_kafka.sh
directory=/home/kafka/kafka_2.11-0.10.1.0
user=root
autostart=true
autorestart=true
stdout_logfile=/var/log/kafka/stdout.log
stderr_logfile=/var/log/kafka/stderr.log
environment = JAVA_HOME=/usr/lib/jvm/java-8-oracle
我有一台安装了 Apache Kafka 的 Ubuntu 16.04 机器。目前，我可以使用具有以下内容的 start_kafka.sh 脚本使其完美运行：
JMX_PORT=17264 KAFKA_HEAP_OPTS="-Xms1024M -Xmx3072M" /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-server-start.sh -daemon /home/kafka/kafka_2.11-0.10.1.0/config/server.properties
现在，我想使用 supervisor 在进程失败时自动重启进程，并在重启机器后立即启动。问题是我无法 supervisor 启动 Kafka。
我使用 pip 安装了 supervisor 并将此配置文件放在 /etc/supervisord.conf:
; Supervisor config file.
;
; For more information on the config file, please see:
; http://supervisord.org/configuration.html
[unix_http_server]
file=/tmp/supervisor.sock ; (the path to the socket file)
[supervisord]
logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10 ; (num of main logfile rotation backups;default 10)
loglevel=info ; (log level;default info; others: debug,warn,trace)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=false ; (start in foreground if true;default false)
minfds=1024 ; (min. avail startup file descriptors;default 1024)
minprocs=200 ; (min. avail process descriptors;default 200)
; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL for a unix socket
[program:kafka]
command=/home/kafka/kafka_2.11-0.10.1.0/start_kafka.sh ; the program (relative uses PATH, can take args)
;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
startsecs=10 ; # of secs prog must stay up to be running (def. 1)
startretries=3 ; max # of serial start failures when starting (default 3)
;autorestart=unexpected ; when to restart if exited after running (def: unexpected)
;exitcodes=0,2 ; 'expected' exit codes used with autorestart (default 0,2)
stopsignal=TERM ; signal used to kill process (default TERM)
stopwaitsecs=180 ; max num secs to wait b4 SIGKILL (default 10)
stdout_logfile=NONE ; stdout log path, NONE for none; default AUTO
;environment=A="1",B="2" ; process environment additions (def no adds)
当我尝试启动 Kafka 时，出现以下错误：
# supervisorctl start kafka
kafka: ERROR (spawn error)
主管日志（位于 /tmp/supervisord.log）包含以下内容：
2017-01-23 22:10:24,532 INFO spawned: 'kafka' with pid 21311
2017-01-23 22:10:24,536 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:25,542 INFO spawned: 'kafka' with pid 21312
2017-01-23 22:10:25,559 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:27,562 INFO spawned: 'kafka' with pid 21313
2017-01-23 22:10:27,567 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:30,571 INFO spawned: 'kafka' with pid 21314
2017-01-23 22:10:30,576 INFO exited: kafka (exit status 127; not expected)
2017-01-23 22:10:31,578 INFO gave up: kafka entered FATAL state, too many start retries too quickly
不得不说，我已经尝试删除 start_kafka.sh 中的 -daemon 标志以与 supervisor 一起使用，但没有成功。
有人知道发生了什么事吗？
以下主管配置文件适用于我，取自 https://github.com/miguno/wirbelsturm via https://github.com/miguno/puppet-kafka。主要区别在于它使用 kafka-run-class.sh 而不是 kafka-server-start.sh.
请注意，您需要更新各种路径以匹配您的设置，例如您必须将 /opt/kafka/bin/kafka-run-class.sh 更改为 /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-run-class.sh。
[program:kafka-broker]
command=/opt/kafka/bin/kafka-run-class.sh kafka.Kafka /opt/kafka/config/server.properties
numprocs=1
numprocs_start=0
priority=999
autostart=true
autorestart=true
startsecs=10
startretries=999
exitcodes=0,2
stopsignal=INT
stopwaitsecs=120
stopasgroup=true
directory=/
user=kafka
redirect_stderr=false
stdout_logfile=/var/log/supervisor/kafka-broker/kafka-broker.out
stdout_logfile_maxbytes=20MB
stdout_logfile_backups=5
stderr_logfile=/var/log/supervisor/kafka-broker/kafka-broker.err
stderr_logfile_maxbytes=20MB
stderr_logfile_backups=10
environment=JMX_PORT=9999,KAFKA_GC_LOG_OPTS="-Xloggc:/var/log/kafka/daemon-gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps",KAFKA_HEAP_OPTS="-Xms512M -Xmx512M -XX:NewSize=200m -XX:MaxNewSize=200m",KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false",KAFKA_JVM_PERFORMANCE_OPTS="-server -XX:+UseCompressedOops -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+CMSScavengeBeforeRemark -XX:+DisableExplicitGC -Djava.awt.headless=true",KAFKA_LOG4J_OPTS="-Dlog4j.configuration=file:/opt/kafka/config/log4j.properties",KAFKA_OPTS="-XX:CMSInitiatingOccupancyFraction=70 -XX:+PrintTenuringDistribution"
我终于设法让 supervisor 与 Kafka 一起工作了两个变化：
- 在没有
-daemon标志的情况下部署 Kafka，因为主管需要 non-daemozined 进程来管理 - 在主管配置文件中明确定义 Java 路径
这是工作配置：
start_kafka.sh
JMX_PORT=17264 KAFKA_HEAP_OPTS="-Xms1024M -Xmx3072M" /home/kafka/kafka_2.11-0.10.1.0/bin/kafka-server-start.sh /home/kafka/kafka_2.11-0.10.1.0/config/server.properties
supervisord.conf
[unix_http_server]
file=/var/run/supervisor.sock ; (the path to the socket file)
chmod=0700 ; sockef file mode (default 0700)
[supervisord]
logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP)
; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = /etc/supervisor/conf.d/*.conf
[program:kafka]
command=/home/kafka/kafka_2.11-0.10.1.0/start_kafka.sh
directory=/home/kafka/kafka_2.11-0.10.1.0
user=root
autostart=true
autorestart=true
stdout_logfile=/var/log/kafka/stdout.log
stderr_logfile=/var/log/kafka/stderr.log
environment = JAVA_HOME=/usr/lib/jvm/java-8-oracle