[Nfd-dev] Installing NFD 0.4.1 strangely increase CPU workload

[Yudi Andrean]

Junxiao,


The problem is resolved now, I found that I still had ndn-cxx and ndn-tools which I built manually from sources and I forgot to update (I suspect that they were conflicting with the ones I downloaded from PPA along with nfd). I ./waf-uninstalled them and the machine's CPU went normal again. Thanks!


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Regards,

Yudi


________________________________
From: Junxiao Shi <shijunxiao at email.arizona.edu>
Sent: Monday, April 25, 2016 8:43 PM
To: Yudi Andrean; nfd-dev at lists.cs.ucla.edu
Subject: RE: [Nfd-dev] Installing NFD 0.4.1 strangely increase CPU workload

Hi Yudi

I suspect some program is dynamically linked to an older ndn-cxx library that has been removed during the upgrade. When that program is setup as a system service, it would constantly crash and get restarted, causing init process to take all  CPU. This problem has caused headache on my servers with unattended upgrades.

My suggestion is: (1) upgrade all NDN software from PPA at the same time (eg ndn-tools), don't mix versions (2) link your own programs statically to ndn-cxx, so unattended upgrade won't accidentally break your program.

Yours, Junxiao
________________________________
From: Yudi Andrean<mailto:yudiandreanp at live.com>
Sent: ?4/?25/?2016 3:13
To: nfd-dev at lists.cs.ucla.edu<mailto:nfd-dev at lists.cs.ucla.edu>
Subject: [Nfd-dev] Installing NFD 0.4.1 strangely increase CPU workload


Hi all,


I tried uninstalling my old 0.4.0 ubuntu 14.0.4 then installing NFD 0.4.1 ppa package, and my CPU workload increases, here is what 'top' command yields on my Ubuntu laptop:


[cid:52345627-3ccf-431e-bd51-c5dcde18fc24]


Strangely, the command init, python, and dbus-daemon ate CPU resource aggresively after nfd daemon started. I tried nfd-stop-ing the nfd, and the CPU workload went back to normal, before the nfd started again automatically (because of upstart? cmiiw), eating the CPU.

I uninstalled nfd, reinstalled it again, but it still used so much CPU. My NFD was not acting like this before


Any help on this suspected bug?
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