ngx.exec出错

Question

lua entry thread aborted: runtime error: /opt/app/lua/dep.lua:26: attempt to call ngx.exec after sending out response headers

stack traceback:

coroutine 0:

[C]: in function 'exec'

/opt/app/lua/dep.lua:26: in function </opt/app/lua/dep.lua:1>,

Answer 1

Jeson 2018-04-27 10:19:19

/opt/app/lua/dep.lua 这个文件的第26行，看下什么内容，方便的话贴出来我瞅瞅

• 醉李白 #1

  1 #!/usr/bin/lua
    2 clientIP = ngx.req.get_headers()["X-Real-IP"]
    3 if clientIP == nil then
    4         clientIP = ngx.req.get_headers()["X_Forwarded_For"]
    5 end
    6 if clientIP == nil then
    7         clientIP = ngx.var.remote_addr
    8 end
    9         local memcached = require "resty.memcached"
   10         local memc,err = memcached:new()
   11         if not memc then
   12                 ngx.say("failed to instantiate memc",err)
   13                 return
   14         end
   15         local ok,err = memc:connect("127.0.0.1",11211)
   16         if not ok  then
   17                 ngx.say("failed to connect: ",err)
   18                 return
   19         end
   20         local res,flags,err = memc:get(clientIP)
   21         ngx.say("value key : ",res,clientIP)
   22         if err then
   23                 ngx.say("failed to get clientIP",err)
   24         end
   25         if res == "1" then
   26                 ngx.exec("@server_test")
   27         end
   28         ngx.exec("@server")
  我也是一模一样的报错