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Re: high number of dropped packets

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: high number of dropped packets
From: Jacob Coby <jcoby@xxxxxxxxxxxxxxx>
Date: Fri, 02 Jun 2006 11:30:37 -0400
Joseph Mack NA3T wrote:
ifcfg-lo:1 looks like:

DEVICE=lo:1
IPADDR=VIP
NETMASK=255.255.255.255
NETWORK=<netmask>

shouldn't NETWORK be the VIP?

yeah, it should. i actually sanitized that wrong, the network is x.x.x.0 in the ifconfig. i typed netmask for whatever reason.

at any rate, i think i've fixed it. eaccelerator (a php accelerator) has problems serving pages from the disk cache. one of the real servers had the disk cache enabled, but the other one didn't, which is why it was so random. i disabled the disk cache and everything seems to be working now. strange thing is that the page is generated and delivered, but firefox displays a blank page and ie gives the server cannot be found error.

I also did a bit more research and the packets dropped by kernel isn't really such a bad thing:

(this is the number of packets that were dropped, due to a lack of buffer space, by the packet capture mechanism in the OS on which tcpdump is running, if the OS reports that information to applications; if not, it will be reported as 0).

Thanks.
--
Jacob Coby

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