Amanda-Users

Re: amanda over wireless network

2005-11-17 22:46:31
Subject: Re: amanda over wireless network
From: Gene Heskett <gene.heskett AT verizon DOT net>
To: amanda-users AT amanda DOT org
Date: Thu, 17 Nov 2005 22:30:53 -0500
On Thursday 17 November 2005 22:02, Jon LaBadie wrote:
>On Thu, Nov 17, 2005 at 06:03:08PM -0800, Paul Yeatman wrote:
>> Hmmmm, I set the server side etimeout to 2600s.  Still get (from an
>> amstatus)
>>
>>  pjmac:/    0 planner: [Estimate timeout from pjmac]
>>
>> and the amanda report now gives this (mind you, this client
>> is the only entry in this "test" config)
>>
>>  Estimate Time (hrs:min)    2:10
>>
>> 2 hours and 10 minutes!
>>
>> The message from amandad on the client is virtually the same
>>
>>  <snip>
>>  amandad: time 0.038: running service
>> "/usr/local/libexec/amanda/2.4.5p1/sendsize" amandad: time 1244.905:
>> sending REP packet:
>>  ----
>>  Amanda 2.4 REP HANDLE 000-30F3BC2A55000000 SEQ 1132261451
>>  OPTIONS features=fffffeff9ffe7f;
>>  / 0 SIZE 17648480
>>  ----
>>
>>  amandad: time 1254.905: dgram_recv: timeout after 10 seconds
>>  amandad: time 1254.905: waiting for ack: timeout, retrying
>>  amandad: time 1264.906: dgram_recv: timeout after 10 seconds
>>  amandad: time 1264.906: waiting for ack: timeout, retrying
>>  amandad: time 1274.906: dgram_recv: timeout after 10 seconds
>>  amandad: time 1274.906: waiting for ack: timeout, retrying
>>  amandad: time 1284.906: dgram_recv: timeout after 10 seconds
>>  amandad: time 1284.906: waiting for ack: timeout, retrying
>>  amandad: time 1294.907: dgram_recv: timeout after 10 seconds
>>  amandad: time 1294.907: waiting for ack: timeout, giving up!
>>  amandad: time 1294.907: pid 29584 finish time Thu Nov 17 14:52:41
>> 2005
>>
>> Shouldn't the approx. 1255s required to get the estimate fall clearly
>> within the 2600s allowed?
>>
>> Not sure where things are going wrong now
>
>ISTR someone having a problem with a network setting that caused
>connection drops if there was no activity for a particular period.
>Could it be something like this, not dealing with amanda at all?
>
>IIRC the poster was going to try to setup a heartbeat application
>running whenever amanda was to try and keep their connection up.

I don't recall seeing a message indicating that it worked, so either it
did, or that user gave up.

Here is what I would do:

In roots crontab, setup a ping to the other address over the rf link,
using the -i300 option which would ping the other machine at 5 minute
intervals.  Then, after amdump is done, have it do a 'killall ping'. 

Or one could use the -c36 number option to have it die after say 36
pings which would be 3 hours.  Lots of ways to do that & I'm just 
thinking
out loud.

Start this about 1 minute before amdump is fired off by the users
crontab that runs amdump.

And after you have verified that it works, put a redirect to /dev/null
in roots crontab entry to kill the email you'll get from it.

HTH.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
99.36% setiathome rank, not too shabby for a WV hillbilly
Yahoo.com and AOL/TW attorneys please note, additions to the above
message by Gene Heskett are:
Copyright 2005 by Maurice Eugene Heskett, all rights reserved.


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