ngx_lua连接gearmand

lua连接geraman并丢任务

auth yufei
2016-07-13
lua连接gearman

function F.unzip()
    local cjson        = require "cjson"
    local datas = {}
    local reqdata={}
    local gearman = require "gearman"
    local gm = gearman:new()

    datas["url"] = args["url"]
    datas["coid"] = args["coid"]
    datas["work_id"] = args["work_id"]
    datas["type"] = args["type"]

    reqdata["code"] = 0
    reqdata["data"] = ""
    reqdata["msg"] = "ok"
    reqdata["status"] = 1

    local datas = cjson.encode(datas)

    gm:set_timeout(1000)    -- 1 sec

    ngx.header.content_type = "text/plain"
    local ok, err = gm:connect("gearman.yufei.com", 4730)
    if not ok then
        --return
        reqdata["code"] = 1
        reqdata["status"] = 0
        reqdata["msg"] = "gearmand connection failed"
    end
    ok, err = gm:submit_job_high_bg("UnzipgByPy", datas)
    if not ok then
        --return
        reqdata["code"] = 2
        reqdata["status"] = 0
        reqdata["msg"] = "gearmand push job failed"
    else
        ngx.say(ok)
    end

    local okey, err = gm:set_keepalive(0, 100)
--[[
    if not okey then
        --return
        reqdata["code"] = 3
        reqdata["msg"] = "gearmand keepalive failed"
    end


    --通过lua给swoole传数据
    local swoole=require "luaswoole" --luaswoole.so
    local client = swoole.new()
    local err = client:connect("api.swoole.goodid.com",9090)
    if err then
        ngx.say(err)
        return
    end

    local data = client:sendRecv(ok) 
    if data then
        ngx.say(data)
    end

    client:close()
--]]

    local ok, err = gm:close()
    if not ok then
        ngx.say("failed to close: ", err)
        return
    end

    local error_log = "/data/logs/lua_unip.log"
    local log_file = io.open(error_log, "a+")
    if log_file then
        local time = os.date("%a, %d %b %Y %X GMT")
        log_file:write("\n",time,"\n")
        log_file:write(ngx.var.request_uri,"\n")
        log_file:write(datas,"\n")
        log_file:write(cjson.encode(reqdata),"\n")
    end

    ngx.say(cjson.encode(reqdata))
    ngx.exit(200)

end

gearman提交工作时有多种方式：
submit_job为普通的工作任务，client得到状态更新及通知任务已经完成的响应；
submit_job_bg为异步的工作任务，client不关心任务的完成情况；
submit_job_high为高优先级的工作任务；
submit_job_high_bg为高优先级的异步任务；
submit_job_low为低优先级的工作任务；
submit_job_low_bg为低优先级的异步任务。