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.