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Spyros Lambrinidis's questions

Martin Hope
Spyros Lambrinidis
Asked: 2015-03-13 03:46:35 +0800 CST
  • 11

The following block

location / {
    if ($http_origin ~* (https?://[^/]*\.example\.com(:[0-9]+)?)) {
        add_header 'Access-Control-Allow-Origin' "$http_origin";
    }
    try_files $uri $uri/ /index.php?$args;
}

… causes a 404 as the above code never reaches the try_files directive, so:

  1. Is this related to the IfIsEvil of nginx?

  2. If it is, then is there some other way to test the http_origin by not using an if statement?

I have tried this with nginx > 1.4 (1.4.6, 1.7, 1.7.8).

nginx
Martin Hope
Spyros Lambrinidis
Asked: 2014-04-30 06:58:51 +0800 CST
  • 1

My php fpm process gives me the following warning:

[29-Apr-2014 13:06:10] WARNING: [pool www] seems busy (you may need to
increase pm.start_servers, or pm.min/max_spare_servers), spawning 8
children, there are 19 idle, and 51 total children

[29-Apr-2014 13:07:09] WARNING: [pool www] seems busy (you may need to increase
pm.start_servers, or pm.min/max_spare_servers), spawning 8 children,
there are 14 idle, and 47 total children [29-Apr-2014 13:07:10]

WARNING: [pool www] seems busy (you may need to increase
pm.start_servers, or pm.min/max_spare_servers), spawning 16 children,
there are 17 idle, and 53 total children [29-Apr-2014 13:07:11]

WARNING: [pool www] seems busy (you may need to increase
pm.start_servers, or pm.min/max_spare_servers), spawning 32 children,
there are 14 idle, and 56 total children [29-Apr-2014 13:07:12]

WARNING: [pool www] seems busy (you may need to increase
pm.start_servers, or pm.min/max_spare_servers), spawning 32 children,
there are 19 idle, and 62 total children [29-Apr-2014 13:07:13]

WARNING: [pool www] seems busy (you may need to increase
pm.start_servers, or pm.min/max_spare_servers), spawning 32 children,
there are 18 idle, and 63 total children [29-Apr-2014 13:07:14]

My fpm.conf is :

pm.max_children = 161
pm.start_servers = 20
pm.min_spare_servers = 20
pm.max_spare_servers = 40
pm.max_requests = 1000

My questions are

  1. why are children being spawned even if I am not reaching the max_children value? Is it because of extra traffic and because the idle children need to reach the minimum of 20 they can not be used up?

  2. Is this creating an overhead on my system?

php
Martin Hope
Spyros Lambrinidis
Asked: 2014-01-08 04:33:11 +0800 CST
  • 0

When doing a mongotop, on my mongo inst6allation I get the following data

mydb_live.my_logs 10303ms 10302ms 1ms

So the total is 10303ms, the read is 10302ms and the write is 1ms.

Now when doing a db.system.profile.find with the profileLevel set to 2, I do not get any slow queries that may explain the 10303ms time spent in the mydb_live namespce.

Question:

Is the data reported by mongotop irrespective of the queries? i.e. does it include any background processes like index rebuilding?

Thank you for your time.

mongodb
Martin Hope
Spyros Lambrinidis
Asked: 2013-11-23 00:24:44 +0800 CST
  • 4

I want to use an exec in puppet onlyif its process is NOT running

exec { "execute me":
    onlyif  => "pgrep -fc 'ruby execute.rb'",  
    command => "execute me",
}

So on the above case, if the process 'ruby execute.rb' is already running, the exec should not run as 

pgrep -fc 'ruby execute.rb' will return 1.

However

The command seems to always run in puppet.

On my linux box when I do pgrep -fc 'ruby execute.rb' I always get a value more than 0.

Is there something wrong with my command?

linux