Re: LVS cunsultant needed in NYC
Andrei Taranchenko <[email protected]>
| Newsgroups | gmane.linux.highavailability.ultramonkey |
|---|---|
| Organization | TowerData |
| Message-ID | <[email protected]> |
On Thu, 2005-09-08 at 00:41, Horms wrote:
> On Wed, Sep 07, 2005 at 03:32:26PM -0400, Andrei wrote:
> > In regard to my previous message about the problem we are having.
> >
> > We have a four-machine cluster, behind a bastion host. Two balancers, and
> > two nodes, running White Box Linux (Red Hat), with this topology:
> > http://www.ultramonkey.org/3/topologies/ha-lb-eg.html
> >
> > Connections start timing out after reaching the 600 mark or less (in
> > total, one balancer or two).
>
> Can you check to see the available memory on the linux director at the
> time. Also, can you check the load on the real servers.
Here is a typical picture on a load balancer during testing:
total: used: free: shared: buffers: cached:
Mem: 260038656 252981248 7057408 0 94593024 77946880
Swap: 1052753920 6946816 1045807104
MemTotal: 253944 kB
MemFree: 6892 kB
MemShared: 0 kB
Buffers: 92376 kB
Cached: 69748 kB
SwapCached: 6372 kB
Active: 144876 kB
ActiveAnon: 18568 kB
ActiveCache: 126308 kB
Inact_dirty: 26616 kB
Inact_laundry: 6192 kB
Inact_clean: 2848 kB
Inact_target: 36104 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 253944 kB
LowFree: 6892 kB
SwapTotal: 1028080 kB
SwapFree: 1021296 kB
Committed_AS: 27864 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 4096 k
Web servers are not nearly overloaded, and, in fact, they can take more
beating when tested directly.
We also took down the firewall for a short while - same thing.
I've been trying to access the VIP directly, to test within the network.
I am pretty sure I was able to do that before, somehow, but not anymore.
Basically, I need to know if the bastion host is the bottleneck.
--
Andrei
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