[Beowulf] Regarding wulfstat

Jon Tegner tegner at nada.kth.se
Fri May 14 13:00:22 EDT 2004


Thanks a lot for info!

After doing the verbose test I realized that the nodes that use 
hostrange got the wrong port number. After specifying 7887 it worked as 
expected.

Thanks again, much apreciated!

/jon


Robert G. Brown wrote:

>On Fri, 14 May 2004, Jon Tegner wrote:
>
>  
>
>>Hi,
>>    
>>
>
>I reproduce the iprange behavior here, so that is just a plain old bug
>and I'll fix it shortly, I hope.
>
>The other I'm having a hard time reproducing, although I don't have a
>lot of RH7.3 systems left to play with.  
>
>While I'm trying, check that wulfstat is current (I just now posted
>0.5.7 to both brahma and personal sites).  It has been substantially
>rewritten with the most important change being that it now is based on a
>library shared with both wulflogger and indirectly wulfweb (to
>facilitate further development of client tools).
>
>It also has better debugging.  If you build it from e.g. the tarball for
>testing purposes, and put your failing wulfhosts specs into e.g.
>wulfhosts.tst, then running:
>
>  ./wulfstat -f wulfhosts.tst -v 1 2> log
>
>should BOTH let you see wulfstat AND create a maximally verbose log of
>what it is doing.  Let it run for maybe one update and quit wulfstat,
>then look at the log.  It SHOULD tell you just what is failing in a
>segment near the top like:
>
>D_READHOST: Entering hostrange loop
>Validating hostname = r00, port = 0
>D_READHOST: Validating host:
>D_READHOST: Starting name = |r00| hostip = || inetaddress = |33b60398| port = |0|
>D_READHOST: Looking up ip number for host r00.
>D_READHOST: Got host_id = 42134b58.
>D_READHOST: Setting ip_tmp to 192.168.182.50
>D_READHOST: Reset hostip from 
>D_READHOST: hostip is now 192.168.182.50
>D_READHOST: Setting inetaddr from hostip 192.168.182.50
>D_READHOST: Setting host r00's port = 7887
>D_READHOST: Cleaned up host r00 (we hope).
>D_READHOST: Ending name = r00 hostip = 192.168.182.50 inetaddress = 32b6a8c0  port = 7887
>Validating hostname = r01, port = 0
>D_READHOST: Validating host:
>D_READHOST: Starting name = |r01| hostip = || inetaddress = |32b6a8c0| port = |0|
>D_READHOST: Looking up ip number for host r01.
>D_READHOST: Got host_id = 42134b58.
>D_READHOST: Setting ip_tmp to 192.168.182.51
>D_READHOST: Reset hostip from 
>D_READHOST: hostip is now 192.168.182.51
>D_READHOST: Setting inetaddr from hostip 192.168.182.51
>D_READHOST: Setting host r01's port = 7887
>D_READHOST: Cleaned up host r01 (we hope).
>D_READHOST: Ending name = r01 hostip = 192.168.182.51 inetaddress = 33b6a8c0  port = 7887
>
>Obviously it works here, and should clearly indicate it if the problem
>is e.g. something not resolving.
>
>  
>
>>Any help/hints on this would be appreciated. And Thank You Robert for a 
>>nice little program!
>>    
>>
>
>You're welcome and I'm glad you are enjoying it.  You should check out
>wulflogger and wulfweb (the latter is pretty heavily beta still, but
>works) if you haven't.  You can see what wulfweb can do (very crudely
>still -- don't have time to really pretty this up yet) on:
>
>  http://www.phy.duke.edu/resources/computing/brahma/wulfweb/wulfweb.html
>
>Our local users like this better than wulfstat in a lot of cases,
>although I don't have any of the other views done yet.  I don't think it
>is as useful for admins or serious users, though -- I tend to run it at
>a time granularity of around a minute because updates bollix old/stupid
>browsers.
>
>I'll get back to you when I've fixed iprange.  This is an egregious
>failure, so it is probably a simple enough bug.
>
>   rgb
>
>  
>

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