Re: error: server response too large

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On Tue, Oct 01, 2013 at 06:57:56PM +0200, Viktor Mihajlovski wrote:
> On 10/01/2013 06:19 PM, Daniel P. Berrange wrote:
> > 
> > What were you doing to get a message greater than 256KB ? This
> > patch did not attempt to fix all possible combinations. If a
> > API call such as virConnectListAllDomains has so much data that
> > it requires > 256KB to encode, this fix won't solve that. There
> > is nothing we can do for API calls which have a genuine need to
> > exceed the old size limit.
> > 
> > I was only addressing the case of virStreamPtr data which was
> > mistakenly hardcoded in the server to try sending 16 MB of data
> > at once. I switched it to only try to send 256 KB of data per
> > stream packet.
> > 
> OK, than it's a misunderstanding from my part (regarding your
> intention). The client side error message was the same as in the
> "all-at-once" case which would mean that the client somehow
> got past receiving the message even then and finally stumbled
> trying to decode the message (which is inevitable in such a case).
> 
> Our S390 domains happen to be "oversize" due to the large
> number of devices (which is harder to reproduce on a PCI based
> system because it runs out of bus addresses too quick).
> So dumpxml typically raises the condition.

Yep, there's nothing we can do about that scenario with old
clients, since the data we're returning is inherantly too
big.

Daniel
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