Server hangs at startup - issue with lock file and NFS ?

Chaigneau, Nicolas nicolas.chaigneau at
Tue Sep 2 15:00:39 UTC 2014

I have followed the procedure described in

I build as follows:


./configure \
	--with-openssl \
	--prefix=$KEA_HOME \
	--with-log4cplus=$LOG4CPLUS_HOME \

make install

Then I start the server with:

/opt/application/mwpdhcp/products/kea/0.9-beta1/sbin/kea-dhcp4 -c kea.conf -d

Shouldn't the lock file be in "prefix", rather than the build directory ?

Anyway, I've rebuilt with a local copy of the sources, instead of using a NFS.
The server now starts correctly (well almost - my configuration is incorrect; but the server doesn't hang anymore).


-----Message d'origine-----
De : Jeremy C. Reed [mailto:jreed at] 
Envoyé : mardi 2 septembre 2014 16:42
À : Chaigneau, Nicolas
Cc : kea-dev at
Objet : Re: Server hangs at startup - issue with lock file and NFS ?

On Tue, 2 Sep 2014, Chaigneau, Nicolas wrote:

> I'm working on a Linux RHEL6 (2.6.32-358.6.2.el6.x86_64) VM.

> Googling a bit, I found other people had similar issues with fcntl:
> "fcntl system call hangs when using F_SETLK with NFS file"

I cannot find any recent issue reports with locking on NFS. Anyone have recent links?

Anyways, we should be able to have the same functionality for this without using the locking. In addition, maybe the routine is not needed with newer log4cplus.

> I believe the lock file should not be created in the sources directory.

That should only be for testing purposes.  How did you run kea? (which should identify why it use the source directory)
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