让linux程序后台执行（后台程序管理利器supervisior管理Flume进程）

场景：需要让flume稳定的在linux后台执行

以下是离线安装supervisor的方法：

一、安装supervisor所依赖的python包

1、安装easy_install

下载地址：http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz#md5=7df2a529a074f613b509fb44feefe74e

下载之后解压，进入到解压目录/opt/setuptools-0.6c11中，安装命令：python setup.py install

2、安装meld3

下载地址：http://www.plope.com/software/meld3/meld3-0.6.5.tar.gz

下载之后解压，进入到解压目录/opt/meld3-0.6.5中，安装命令：python setup.py install

二、安装supervisor

下载地址：http://pypi.python.org/packages/source/s/supervisor/supervisor-3.0a9.tar.gz#md5=81d192acab20eef3578856651af7e851

下载之后解压，进入到解压目录/opt/supervisor-3.0a9，安装命令：python setup.py install 

三、运行supervisor

1、配置文件创建与配置

创建配置文件到目录/etc/下面，输入命令：echo_supervisord_conf > /etc/supervisord.conf 

修改两处地方[inet_http_server] 和[program:projecttest]

; Sample supervisor config file.[unix_http_server]file=/tmp/supervisor.sock   ; (the path to the socket file);chmod=0700                 ; sockef file mode (default 0700);chown=nobody:nogroup       ; socket file uid:gid owner;username=user              ; (default is no username (open server));password=123               ; (default is no password (open server))[inet_http_server]         ; inet (TCP) server disabled by defaultport=192.168.112.60:9001        ; (ip_address:port specifier, *:port for all iface)username=user              ; (default is no username (open server))password=123               ; (default is no password (open server))[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);umask=022                  ; (process file creation umask;default 022);user=chrism                 ; (default is current user, required if root);identifier=supervisor       ; (supervisord identifier, default is 'supervisor');directory=/tmp              ; (default is not to cd during start);nocleanup=true              ; (don't clean up tempfiles at start;default false);childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP);environment=KEY=value       ; (key value pairs to add to environment);strip_ansi=false            ; (strip ansi escape codes in logs; def. false); 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;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket;username=chris              ; should be same as http_username if set;password=123                ; should be same as http_password if set;prompt=mysupervisor         ; cmd line prompt (default "supervisor");history_file=~/.sc_history  ; use readline history if available; The below sample program section shows all possible program subsection values,; create one or more 'real' program: sections to be able to control them under; supervisor.[program:projecttest]command=/opt/apache-flume-1.7.0-foryd/apache-flume-1.7.0-bin/bin/flume-ng agent -c /opt/apache-flume-1.7.0-foryd/apache-flume-1.7.0-bin/conf/ -f /opt/apache-flume-1.7.0-foryd/apache-flume-1.7.0-bin/conf/ydxx.conf -n a1             ; the program (relative uses PATH, can take args);process_name=%(program_name)s ; process_name expr (default %(program_name)s);numprocs=1                    ; number of processes copies to start (def 1);directory=/tmp                ; directory to cwd to before exec (def no cwd);umask=022                     ; umask for process (default None);priority=999                  ; the relative start priority (default 999);autostart=true                ; start at supervisord start (default: true);autorestart=true              ; retstart at unexpected quit (default: true);startsecs=10                  ; number of secs prog must stay running (def. 1);startretries=3                ; max # of serial start failures (default 3);exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2);stopsignal=QUIT               ; signal used to kill process (default TERM);stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10);user=chrism                   ; setuid to this UNIX account to run the program;redirect_stderr=true          ; redirect proc stderr to stdout (default false);stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB);stdout_logfile_backups=10     ; # of stdout logfile backups (default 10);stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0);stdout_events_enabled=false   ; emit events on stdout writes (default false);stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB);stderr_logfile_backups=10     ; # of stderr logfile backups (default 10);stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0);stderr_events_enabled=false   ; emit events on stderr writes (default false);environment=A=1,B=2           ; process environment additions (def no adds);serverurl=AUTO                ; override serverurl computation (childutils); The below sample eventlistener section shows all possible; eventlistener subsection values, create one or more 'real'; eventlistener: sections to be able to handle event notifications; sent by supervisor.;[eventlistener:theeventlistenername];command=/bin/eventlistener    ; the program (relative uses PATH, can take args);process_name=%(program_name)s ; process_name expr (default %(program_name)s);numprocs=1                    ; number of processes copies to start (def 1);events=EVENT                  ; event notif. types to subscribe to (req'd);buffer_size=10                ; event buffer queue size (default 10);directory=/tmp                ; directory to cwd to before exec (def no cwd);umask=022                     ; umask for process (default None);priority=-1                   ; the relative start priority (default -1);autostart=true                ; start at supervisord start (default: true);autorestart=unexpected        ; restart at unexpected quit (default: unexpected);startsecs=10                  ; number of secs prog must stay running (def. 1);startretries=3                ; max # of serial start failures (default 3);exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2);stopsignal=QUIT               ; signal used to kill process (default TERM);stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10);user=chrism                   ; setuid to this UNIX account to run the program;redirect_stderr=true          ; redirect proc stderr to stdout (default false);stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB);stdout_logfile_backups=10     ; # of stdout logfile backups (default 10);stdout_events_enabled=false   ; emit events on stdout writes (default false);stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB);stderr_logfile_backups        ; # of stderr logfile backups (default 10);stderr_events_enabled=false   ; emit events on stderr writes (default false);environment=A=1,B=2           ; process environment additions;serverurl=AUTO                ; override serverurl computation (childutils); The below sample group section shows all possible group values,; create one or more 'real' group: sections to create "heterogeneous"; process groups.;[group:thegroupname];programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions;priority=999                  ; the relative start priority (default 999); 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 = relative/directory/*.ini

2、启动测试

执行启动命令：supervisord -c /etc/supervisord.conf

查看所管理进程状态：supervisorctl status

可用web管理页面管理：用户密码默认：user/123

3、常用管理命令

启动supervisor命令：supervisord -c /etc/supervisord.conf  
关闭supervisor命令：supervisorctl shutdown
重新加载配置文件命令：supervisorctl reload
查看supervisor所管理进程状态命令：supervisorctl status