gearman 简单试用

服务启动

使用yum 的安装包

• 安装server

yum install  -y gearmand

• 启动

systemctl restart  gearmand

 

启动worker

gearman -w -f  date -- date

 

启动client 调用

gearman -f data  -s

 

效果

2019年 01月 18日 星期五 10:31:29 CST

 

参数说明

• client && worker

Common options to both client and worker modes.

  -f <function> - Function name to use for jobs (can give many)

  -h <host> - Job server host

  -H - Print this help menu

  -v - Print diagnostic information to stdout(false)

  -p <port> - Job server port

  -t <timeout> - Timeout in milliseconds

  -i <pidfile> - Create a pidfile for the process

  -S - Enable SSL connections

​

Client options:

  -b - Run jobs in the background(false)

  -I - Run jobs as high priority

  -L - Run jobs as low priority

  -n - Run one job per line(false)

  -N - Same as -n, but strip off the newline(false)

  -P - Prefix all output lines with functions names

  -s - Send job without reading from standard input

  -u <unique> - Unique key to use for job

​

Worker options:

  -c <count> - Number of jobs for worker to run before exiting

  -n - Send data packet for each line(false)

  -N - Same as -n, but strip off the newline(false)

  -w - Run in worker mode(false)

 

 

• server
  从参数我们也可以看出，支持多种后端的数据存储

 

Allowed options:

​

Allowed options:

​

General options:

  -b [ --backlog ] arg (=32) Number of backlog connections for

                                        listen.

  -d [ --daemon ] Daemon, detach and run in the

                                        background.

  --exceptions Enable protocol exceptions by default.

  -f [ --file-descriptors ] arg Number of file descriptors to allow for

                                        the process (total connections will be

                                        slightly less). Default is max allowed

                                        for user.

  -h [ --help ] Print this help menu.

  -j [ --job-retries ] arg (=0) Number of attempts to run the job

                                        before the job server removes it. This

                                        is helpful to ensure a bad job does not

                                        crash all available workers. Default is

                                        no limit.

  --job-handle-prefix arg Prefix used to generate a job handle

                                        string. If not provided, the default

                                        "H:<host_name>" is used.

  --hashtable-buckets arg (=991) Number of buckets in the internal job

                                        hash tables. The default of 991 works

                                        well for about three million jobs in

                                        queue. If the number of jobs in the

                                        queue at any time will exceed three

                                        million, use proportionally larger

                                        values (991 * # of jobs / 3M). For

                                        example, to accomodate 2^32 jobs, use

                                        1733003. This will consume ~26MB of

                                        extra memory. Gearmand cannot support

                                        more than 2^32 jobs in queue at this

                                        time.

  --keepalive Enable keepalive on sockets.

  --keepalive-idle arg (=-1) If keepalive is enabled, set the value

                                        for TCP_KEEPIDLE for systems that

                                        support it. A value of -1 means that

                                        either the system does not support it

                                        or an error occurred when trying to

                                        retrieve the default value.

  --keepalive-interval arg (=-1) If keepalive is enabled, set the value

                                        for TCP_KEEPINTVL for systems that

                                        support it. A value of -1 means that

                                        either the system does not support it

                                        or an error occurred when trying to

                                        retrieve the default value.

  --keepalive-count arg (=-1) If keepalive is enabled, set the value

                                        for TCP_KEEPCNT for systems that

                                        support it. A value of -1 means that

                                        either the system does not support it

                                        or an error occurred when trying to

                                        retrieve the default value.

  -l [ --log-file ] arg (=/var/log/gearmand.log)

                                        Log file to write errors and

                                        information to. If the log-file

                                        parameter is specified as 'stderr',

                                        then output will go to stderr. If

                                        'none', then no logfile will be

                                        generated.

  -L [ --listen ] arg Address the server should listen on.

                                        Default is INADDR_ANY.

  -P [ --pid-file ] arg (=/var/gearmand.pid)

                                        File to write process ID out to.

  -r [ --protocol ] arg Load protocol module.

  -R [ --round-robin ] Assign work in round-robin order per

                                        worker connection. The default is to

                                        assign work in the order of functions

                                        added by the worker.

  -q [ --queue-type ] arg (=builtin) Persistent queue type to use.

  --config-file arg (=/etc/gearmand.conf)

                                        Can be specified with '@name', too

  --syslog Use syslog.

  --coredump Whether to create a core dump for

                                        uncaught signals.

  -t [ --threads ] arg (=4) Number of I/O threads to use, 0 means

                                        that gearmand will try to guess the

                                        maximum number it can use. Default=4.

  -u [ --user ] arg Switch to given user after startup.

  --verbose arg (=ERROR) Set verbose level (FATAL, ALERT,

                                        CRITICAL, ERROR, WARNING, NOTICE, INFO,

                                        DEBUG).

  -V [ --version ] Display the version of gearmand and

                                        exit.

  -w [ --worker-wakeup ] arg (=0) Number of workers to wakeup for each

                                        job received. The default is to wakeup

                                        all available workers.

​

HTTP:

  --http-port arg (=8080) Port to listen on.

​

Gear:

  -p [ --port ] arg (=4730) Port the server should listen on.

  --ssl Enable ssl connections.

  --ssl-ca-file arg CA file.

  --ssl-certificate arg SSL certificate.

  --ssl-key arg SSL key for certificate.

​

builtin:

​

libmemcached:

  --libmemcached-servers arg List of Memcached servers to use.

​

libsqlite3:

  --libsqlite3-db arg Database file to use.

  --store-queue-on-shutdown Store queue on shutdown.

  --libsqlite3-table arg (=gearman_queue)

                                        Table to use.

​

Postgres:

  --libpq-conninfo arg PostgreSQL connection information string.

  --libpq-table arg (=queue) Table to use.

​

libtokyocabinet:

  --libtokyocabinet-file arg File name of the database. [see: man tcadb,

                              tcadbopen() for name guidelines]

  --libtokyocabinet-optimize Optimize database on open. [default=true]

​

MySQL:

  --mysql-host arg (=localhost) MySQL host.

  --mysql-port arg (=3306) Port of server. (by default 3306)

  --mysql-user arg MySQL user.

  --mysql-password arg MySQL user password.

  --mysql-db arg MySQL database.

  --mysql-table arg (=gearman_queue) MySQL table name.

 

 

• admin 参数

Options:

  --help Options related to the program.

  -h [ --host ] arg (=localhost) Connect to the host

  -p [ --port ] arg (=4730) Port number or service to use for connection

  --server-version Fetch the version number for the server.

  --server-verbose Fetch the verbose setting for the server.

  --create-function arg Create the function from the server.

  --cancel-job arg Remove a given job from the server's queue

  --drop-function arg Drop the function from the server.

  --show-unique-jobs Show unique jobs on server.

  --show-jobs Show all jobs on the server.

  --getpid Get Process ID for the server.

  --status Status for the server.

  --workers Workers for the server.

  --shutdown Shutdown server.

  -S [ --ssl ] Enable SSL connections.

参考资料

http://gearman.org/getting-started/