Submitted by: Phil Forrest <forrest@physics.auburn.edu>


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fast_redirect, the filter would still point at the subreq - rather than
the original r.  So, we must update any filters pointing at rr to be r.

This would cause lots of problems with mod_include with mod_dir requests
such as seen in PR 7966.  mod_include would be unsetting the headers_out
of rr instead of r.  But, we disassociate rr->headers_out and r->headers_out.
Therefore, the C-L header in r->headers_out would remain - even though it
bears no relation to what we will be outputting - causing problems.

This also now permits chunked-encoding of mod_dir/mod_include requests
which could never happen before and fixes the content-length problem
seen in PR 7966.

As hinted at in PR 7966, there is a race condition - if for some reason
the server stalls reading an included file (or even better, placing a
sleep in the cgi-bin script!), the invalid C-L may get propogated to the
client.

(Note that internal_internal_redirect has this same code fragment.)

PR: 7966


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The advantage of doing this is that it enables us to guarantee that the
number of ptrans pools in existence at once is no greater than the
number of worker threads, and that we'll never have to delete ptrans
pools.


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for the error-case return (thanks to Justin for suggesting the
latter)


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the mutex-protected critical path of ap_queue_pop()


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error instead.

Obtained from:  Justin Erenkrantz
Submitted by:	Aaron Bannert


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there is an available worker thread. This prevents queued
connections from starving for processing time while long-running
connections were hogging all the available threads.


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the listener thread from accept()ing more connections than there are
available workers. This prevents long-running requests from starving
connections that have been accepted but not yet processed.

The queue_info is a simple counter, mutex, and condition variable. Only
the listener thread blocks on the condition, and only when there are no
idle workers. In the fast path there is a mutex lock, integer decrement,
and and unlock (among a few conditionals). The worker threads each notify
the queue_info when they are about to block on the normal worker_queue
waiting for some connection to process, which wakes up any sleeping
listener thread to go perform another accept() in parallel.


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  After review and testing against all of the PSDK examples (see
  http://www.apache.org/~wrowe/ for commentary on building the
  examples and making them work) ... this disable-optimization
  should no longer be required.


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dereference it in the for(...) loop.  Attempting to dereference a NULL pointer
was causing a fault if there were no aliases found.


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implementation in APR.
PR:
Obtained from:
Submitted by:	Eduardo Garcia Lopez <egarcia@stream18.com>
Reviewed by:


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we need to copy libtool and instdso.sh verbatim, and we
need to edit config_vars.mk and apxs

still broken: "httpd -l" as invoked by apxs can fail since
support libraries (apr, aprutil, etc.) are probably not
findable


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elements in the queue represent accept()ed connections, we want them
to be processed in the order that they were received.  (I erroneously
converted it to a LIFO quite awhile ago in the hopes that it would
improve cache efficiency.)

Remember to perform a make clean in the worker directory after this patch,
since this patch changes the size of the fd_queue_t object (which is
allocated in worker.c).


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(I would bet that there is more work to do throughout proxy, but at least
it can serve some pages now)


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portability challenges with atomics


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Striker decide that. I hope to have the top two of these finished in
the next 24 hours, but the third I may need some help with.


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you add to void *


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Submitted by: masao@ulis.ac.jp (Masao Takaku)
PR: 8449


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corresponding to their host name.


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  Trade one signedness mismatch for another, but choose the one that is
  known to be a positive value.


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  Not yet added to the default build, but curious if they build and run.
  mod_deflate tested with both zlib 1.1.3/1.1.4, unpacked in srclib/zlib/.
  Zlib only seems to have .dll builds, not very efficient when a single
  binary is built against sources, so we compile the appropriate sources.
  Your mileage may vary.


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I'm -1 here until those are fixed. I also think we need to do a lot more
load/soak/burn testing on worker before we switch it to be the default.
(and maybe by that time we'll have a better candidate for the hybrid
MP/MT MPM).


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It's been happening for ages, there are no PRs I'm aware of, and the core
dumps that happened as a side effect in 2.0.35 seem to be resolved.


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