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as transfers can appear delayed with deep pipelining and more
requests in the pool. Added bad HTTP status error (typically
getting a 0 back as HTTP status from libcurl) to the list of
retryable errors. There's a response stream problem with libcurl
and pipelining that induces this problem. Retrying helps but
may not be entirely safe. Watch bug 1420 on the libcurl sourceforge
bug tracker. Extend options of test/example program to include
un-ranged requests. Document the excessive data transfer induced
when ranged requests are disabled. This is an abnormal mode for
very rare users so we'll just eat that for now.
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First, introduced some LLSD-based interfaces to the llcorehttp code
using utils classes (in llcorehttputil). I've kept LLSD out of
the llcorehttp library up to now and will continue to do that.
Functions provide a requestPost based on LLSD body and conversion
utils for HttpResponse-to-LLSD and HttpResponse-to-string
conversions. Inventory fetch operations now do more thorough
error checking including 200-with-error status checking. Still
do retry forever on folders though I don't like that.
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connections. Convert background and foreground fetches, both
items and folders/inventory and library, to use new HTTP.
Non-fetch inventory operations continue to use LLHTTPClient
(at least for now). Error handling and retry on fetches wasn't
100% previously and that's still the case. I'll rip through
this again to clean that up. Cleaned up logging in much of
the inventory code with consistent labels on logging events
and correct macros (removed deprecation warnings).
This started as an attempt to get libcurl to do pipelining
on POSTs and PUTs. Discovered that this is going to be
very difficult to support in general in libcurl. May
look at that again in the future.
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some problems disabling pipelining on a multi handle with outstanding
requests so build a more conservative system that allows requests
to drain before setting curl multi options. Would rather not have
this but it is significantly safer. "HttpPipelining" debug setting
is now fully dynamic. Connection limits can also be made dynamic
in the near future. Upped the default connection count back to 8 for
now but will revisit this in the tuning phase. It might be time to
combine mesh and textures into a single asset class. For normal
server operations that would be a clear path, but for server under
load, the current scheme may be better. Minor cleanup in logging
to elminate some redundant strings. Might add some more tracing to the
stall logic 'just in case'.
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Intended for users with bad networking gear or twitchy ISPs, if set to
True, forces plain GET requests to asset servers for textures and meshes.
This change kicked off a slight refactor in the mesh repository code which
made it resilient against unexpected 200's and responses not covering
the requested start range. There's still too much data copying in the
Mesh code (always has been). Would love to fix that and get rid of the
monolithic temp buffer. Cleaned up white space damage caused by unnamed
linden who likes to drag his magical editor through code.
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banning group owners. Viewer gives message that you ejected group owner.
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unblock RC.
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cutting texture memory to default to 1/3rd of installed ram, pre-cutting is redundant).
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-- use WMI instead of DxDiag to get dedicated video memory.
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data so their isn't an opportunity for gaps over overruns (init_data).
Start some preliminary tweaking of policy class numbers. It looks
like I can easily drop the default connection count to '4' and
still hit the throttles. Did some experiments running pipeline
deeper which was mostly fine for textures but tended to slow
meshes. Reason uncertain but a depth of '5' seems generally healthy
for mesh. I had one run of 52.6S with a theoretical minimum of 51.2S.
That's as good as I've ever seen.
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the ban list already contains 500 entries, which fails.
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default to 1/3rd of video memory. Add description on debug setting and tooltip to explain why.
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GetTexture and GetMesh2 at a pipeline depth of 5. Create
global debug option, HttpPipelining, to enable and disable
HTTP pipelining (defaults to true). Tweak texture and
mesh low- and high-water request levels based on pipelining
status and depth. Fixup texture console which was damaged
in a recent release. Split logging of the no-request
HTTP error case into two cases: one for missing URL in
HTTP request, one for HTTP request not created. A refactor
in llcorehttp is coming: I will be moving all libcurl-
using code into libcurl-specific modules.
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