SPAM-HIGH: RE: Buffer read error when reading leases file.

[Steve]

Hi Glen,

Thanks, I'll give them a try.

The version I'm using is 4.2.2 which is up to date according to Debian's APT
repository.  If this doesn't fix it, I'll have to compile the latest from
source.

Thanks
Steve.



-----Original Message-----
From: dhcp-users-bounces+steve=iwwd.com at lists.isc.org
[mailto:dhcp-users-bounces+steve=iwwd.com at lists.isc.org] On Behalf Of Neff,
Glen
Sent: Friday, 15 November 2013 12:16 AM
To: Users of ISC DHCP
Subject: SPAM-HIGH: RE: Buffer read error when reading leases file.

I haven't had your issue (but I might of had things continued), but I seem
to remember something about the defaults for these values being
problematically low & causing a lot of churn in the lease file.  These
settings were recommended to me:

option dhcp-renewal-time 3600;
option dhcp-rebinding-time 7200;
allow leasequery;
option dhcp6.info-refresh-time 21600;

-G

/*
 * Glen R. J. Neff
 * USD Lab Operations Infrastructure Team
 * glen.neff at emc.com
 *
 * EMC^2 == E^2
 */
________________________________________
From: dhcp-users-bounces+glen.neff=emc.com at lists.isc.org
[dhcp-users-bounces+glen.neff=emc.com at lists.isc.org] On Behalf Of Steve
[steve at iwwd.com]
Sent: Wednesday, November 13, 2013 6:46 PM
To: dhcp-users at lists.isc.org
Subject: Buffer read error when reading leases file.

Hi All,

I've been trying to debug why our dhcp-v6 service wasn't starting when this
line appeared in syslog:

dhcpd: /var/lib/dhcp/dhcpd6.leases: file is too long to buffer.

Upon checking the file, I found it was a massive 6.2GB in file size!

This server handles a floating number of around 300-500 clients-devices, how
on earth could the leases file grown this large?

Thanks
Steve.


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