Fwd: Child is hung (max_request)

Alan DeKok aland at deployingradius.com
Fri Nov 21 19:06:01 CET 2014


srithar jeevadurai wrote:
> We are using Radius 2.2.1. Can we fix the child hung by putting any patch ? 

  If you're going to patch it yourself, you'll need to look at github.
Or, download the link I sent and use that.

> For my understanding of Radius server behavior  
> 
> May I know the possible root causes for "Child is hung" ? 

  A bug.  The root causes are buried inside of the server.  Since you're
not familiar with the server code, any explanation won't help.

> In our scenario, I believe that when backlog is growing, some point of
> time each request faces "max_request_time" - out so it is giving child
> is hung message i.e. the request is in queue but no worker thread has
> picked it.

  No.

> May I know why we will not be able to solve and it will delays the
> problem please?

  If the problem is that the home server is down, increasing the
internal queue size won't help.  The home server will still be down.

  Alan DeKok.


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