Re: [jgroups-users] RPC Timing Out

Bela,

We had tried 0 in the distant past and it did not work [for us] as crashes did not cleanly terminate the calls.  Hence we had added the keep alive code.  However, preliminary testing indicates that timeout of 0 works well in 3.6.9.

We will continue down this road and report back any issues.  Thanks for putting us back on the path ;)

Regards,
Neal

-----Original Message-----
From: Questions/problems related to using JGroups [mailto:[email protected]] 
Sent: Wednesday, June 15, 2016 12:08 AM
To: [email protected]
Subject: Re: [jgroups-users] RPC Timing Out

If the RPC can never deadlock, why don't you set a timeout of 0 (which disables timeouts)?
Eventually the data will be received and the call will terminate. A crash of the sender or receiver will cause the call to terminate; the failure detection protocol(s) will do this.

Perhaps I don't understand what you're trying to do; in that case, a unit tests will help... :-)

On 14/06/16 23:47, Questions/problems related to using JGroups wrote:
> Hello all,
>
> We have some RPCs that return fairly significant amounts of data.  As 
> a result, those calls can be prone to time out.  In order to combat 
> that issue we have, on 3.0.2, added code that sends messages up the 
> stack to keep the RPC from timing out.  We could reimplement that on 
> 3.6.9, but before we do so we wanted to make sure there is not a "more standard"
> way to solve the issue.
>
> Note that we do not want to set an "extra-long" timeout, as failures 
> do occur.  Rather we would want to be notified as soon as reasonable 
> of said failure.  Ideally we would set a fairly short timeout - 
> perhaps 5 seconds - and as long as the host continues to receive 
> FRAGments of the response we could bubble a keep alive up the stack.
>
> Thoughts and advice are appreciated.
>
> Regards,
>
> Neal

--
Bela Ban, JGroups lead (http://www.jgroups.org)


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What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are 
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reports. http://pubads.g.doubleclick.net/gampad/clk?id=1444514421&iu=/41014381