Shulou(Shulou.com)06/01 Report--

Managing the process is a troublesome thing, sometimes the process crashes because the memory is preempted by other processes, and there is no good way to solve it, then it involves how to make it hang up and start automatically, supervisor is such a software, before you do it, please make sure that you need to let the process start automatically, otherwise the process may not be able to restart the machine to solve the process occupation of IO and other problems that lead to ssh can not connect. The following describes how to install and configure, and how to view the status of the page.

Install supervisor

Yum install supervisor-y

Ambari detects whether the process is started according to the pid file. In order for ambari to detect the process status, to ensure that the file name of the process number is the same, HBASE_IDENT_STRING will be used as a variable in the process startup file to name the process pid file.

Echo 'export HBASE_IDENT_STRING=hbase' > > / etc/init.d/supervisord

Edit / etc/supervisord.conf

[unix_http_server]

File=/tmp/supervisor.sock

[supervisord]

Http_port=/var/tmp/supervisor.sock

Http_port=0.0.0.0:9001; (alternately, ip_address:port specifies AF_INET)

Logfile=/tmp/supervisord.log; (main logfile; 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; (loglevel; 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)

[rpcinterface:supervisor]

Supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]

Serverurl=unix:///var/tmp/supervisor.sock; use a unix:// URL for a unix socket

[program:regionserver]

Command=bash / usr/hdp/current/hbase-regionserver/bin/hbase-daemon.sh-- config / usr/hdp/current/hbase-regionserver/conf foreground_start regionserver

Process_name=% (program_name) s

Numprocs=1

; directory=/usr/hdp/current/hbase-regionserver/bin/

Autostart=true

Autorestart=true

Startretries=3

Exitcodes=0,2

Stopsignal=INT

User=hbase

Stdout_logfile=regionserver_out.log

Stdout_logfile_maxbytes=1MB

Stdout_logfile_backups=10

Stdout_capture_maxbytes=1MB

Stderr_logfile=test_err.log

Stderr_logfile_maxbytes=1MB

Stderr_logfile_backups=10

Stderr_capture_maxbytes=1MB

If you want to start other programs, you can add them directly on the last line, such as

[program:wpiweibo]

Command=/usr/jdk64/jdk1.8.0_40/bin/java-jar / home/luoweimin/wpiindex/WPIIndex-1.0-SNAPSHOT.jar

Numprocs=1

User=luoweimin

Stdout_logfile=wpiweibo.out

Stderr_logfile=wpiweibo.err

Start

/ etc/init.d/superversiord start

Since I have monitored port 9001, you can use ip:9001 to monitor the page to check the status and start and stop the service.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.