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java in a high latency network

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  java in a high latency network xeon Mailinglist <xeonmailinglist@gmail.com> - 2014-03-04 10:12 -0800
    Re: java in a high latency network Knute Johnson <eternal@knutejohnson.com> - 2014-03-04 19:08 -0800
    Re: java in a high latency network Roedy Green <see_website@mindprod.com.invalid> - 2014-03-05 15:57 -0800
      Re: java in a high latency network eric@invalid.com (EricF) - 2014-03-07 03:25 +0000

#2918 — java in a high latency network

I am using a program that transfer files between the hosts. My problem is that the network between these hosts have a high latency (> 1sec), and sometimes my programs launch a error of "java.net.NoRouteToHostException: No route to host; ". 

I think this problem happens because of the latency. There is a way to configure the JVM for networks with high latency so that the time to try to connect to a remote host is longer?

Thanks,

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#2919

On 3/4/2014 10:12, xeon Mailinglist wrote:
> I am using a program that transfer files between the hosts. My
> problem is that the network between these hosts have a high latency
> (> 1sec), and sometimes my programs launch a error of
> "java.net.NoRouteToHostException: No route to host; ".
>
> I think this problem happens because of the latency. There is a way
> to configure the JVM for networks with high latency so that the time
> to try to connect to a remote host is longer?
>
> Thanks,
>

I would expect a timeout and a ConnectException not a 
NoRouteToHostException with a high latency.  The latter implies 
something blocking the connection as opposed to not accepting a 
connection.  Can you create an example that would cause the 
NoRouteToHostException with a response delay?

-- 

Knute Johnson

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#2920

On Tue, 4 Mar 2014 10:12:39 -0800 (PST), xeon Mailinglist
<xeonmailinglist@gmail.com> wrote, quoted or indirectly quoted someone
who said :

>I think this problem happens because of the latency.
There is a way to configure the JVM for networks with high latency so
that the time to try to connect to a remote host is longer?

I have never seen that error myself, but there are timeouts you can
configure. See http://mindprod.com/products1.html#HTTP for source.
-- 
Roedy Green Canadian Mind Products http://mindprod.com
The future has already happened, it just isn’t evenly distributed.
~ William Gibson (born: 1948-03-17 age: 65)

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#2921

In article <4eefh9dcafarca3ieka3itefrifutgg1r1@4ax.com>, Roedy Green <see_website@mindprod.com.invalid> wrote:
>On Tue, 4 Mar 2014 10:12:39 -0800 (PST), xeon Mailinglist
><xeonmailinglist@gmail.com> wrote, quoted or indirectly quoted someone
>who said :
>
>>I think this problem happens because of the latency.
>There is a way to configure the JVM for networks with high latency so
>that the time to try to connect to a remote host is longer?
>
>I have never seen that error myself, but there are timeouts you can
>configure. See http://mindprod.com/products1.html#HTTP for source.

Honestly people. How difficult is it to go to a search engine like Google and 
try something like "java network timeout"  One of the top choices is Oracle's 
Java network properties.

Eric

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