STATUS revision f881b8be216de36c6b964324c772450bca38a4e6
2e37d45867d081db150ab78dad303b9077aea24fTimo SirainenAPACHE 2.0 STATUS: -*-text-*-
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenLast modified at [$Date: 2002/07/22 14:26:21 $]
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
0536ccb51d41e3078c3a9fa33e509fb4b2420f95Timo SirainenRelease:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.40 : in development.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.39 : rolled June 17, 2002.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.38 : rolled June 16, 2002. not released.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.37 : rolled June 11, 2002. not released.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.36 : released May 6, 2002 as GA.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.35 : released April 5, 2002 as GA.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.34 : tagged March 26, 2002.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.33 : tagged March 6, 2002. not released.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.32 : released Feburary 16, 2002 as beta.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.31 : rolled Feburary 1, 2002. not released.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.30 : tagged January 8, 2002. not rolled.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.29 : tagged November 27, 2001. not rolled.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.28 : released November 13, 2001 as beta.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.27 : rolled November 6, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.26 : tagged October 16, 2001. not rolled.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.25 : rolled August 29, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.24 : rolled August 18, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.23 : rolled August 9, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.22 : rolled July 29, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.21 : rolled July 20, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.20 : rolled July 8, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.19 : rolled June 27, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.18 : rolled May 18, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.17 : rolled April 17, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.16 : rolled April 4, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.15 : rolled March 21, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0.14 : rolled March 7, 2001
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a9 : released December 12, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a8 : released November 20, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a7 : released October 8, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a6 : released August 18, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a5 : released August 4, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a4 : released June 7, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a3 : released April 28, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a2 : released March 31, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen 2.0a1 : released March 10, 2000
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenPlease consult the following STATUS files for information
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainenon related projects:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * srclib/apr/STATUS
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * srclib/apr-util/STATUS
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * docs/STATUS
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenCURRENT RELEASE NOTES:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenRELEASE SHOWSTOPPERS:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * apr_poll() grows the pool (e.g., pchild or the thread's pool) on
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen each call... Apache MPMs don't have logic to work around this
4efba37e4f27b93832f6147c3a353d6d22c855c7Timo Sirainen issue.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * On AIX and Tru64, Apache won't load due to an unresolved
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen reference to iconv. This is apparently because
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen APRUTIL_EXPORT_LIBS is not being used in the Apache build.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenCURRENT VOTES:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * apachectl should revert to just being an init script and
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen httpd.sh should be the wrapper for httpd which sources envvars
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen and allows any options to be passed through
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +1: trawick
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * Should we always build [support*] binaries statically unless otherwise
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen indicated?
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Message-ID: <20020129210006.B23512@Lithium.MeepZor.Com>
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +1: Ken, *wrowe [they are PITAs on OSX]
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen -1: Justin, Ian
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * If the parent process dies, should the remaining child processes
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen "gracefully" self-terminate. Or maybe we should make it a runtime
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen option, or have a concept of 2 parent processes (one being a
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen "hot spare").
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen See: Message-ID: <3C58232C.FE91F19F@Golux.Com>
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Self-destruct: Ken, Martin
e376e08040b5f21ff79a15ae728d2532a34207f6Timo Sirainen Not self-destruct: BrianP, Ian, Cliff, BillS
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Make it runtime configurable: Aaron, Jim, Justin
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Have 2 parents: +1: Jim
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen -1: Justin, wrowe [for 2.0]
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +0: Martin (while standing by, could it do
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen something useful?)
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * Make the worker MPM the default MPM for threaded Unix boxes.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +1: Justin, Ian, Cliff, BillS
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +0: BrianP, Aaron (mutex contention is looking better with the
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen latest code, let's continue tuning and testing)
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen -0: Lars
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo SirainenRELEASE NON-SHOWSTOPPERS BUT WOULD BE REAL NICE TO WRAP THESE UP:
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * All handlers should always send content down even if r->header_only
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen is set. If not, it means that the HEAD requests don't generate the
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen same headers as a GET which is wrong.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Is this a showstopper?
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen +1: Justin
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen -1: Aaron
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * server pushed CGI's not working. (Is this a showstopper??)
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen PR: 8482
32f39001908869449523f53d2d08b2653d2d9772Timo Sirainen Message-ID: <3CE15B85.2FF45121@apache.org>
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * HP/UX 10.20: compile breakage in APR. Looks like it should be easy
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen to fix, probably just some extraneous #include's that are fouling
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen things up.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen PR: 9457
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Jeff: See my reply and patch in the PR (and previous commit to
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen stop using "pipe" as a field name). If patch is committed, we
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen should be okay. I'll wait to see if the user tests the patch.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen Update by Jeff 20020722: I got an account on HP 10.20. It looks
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen like some of the APR thread detection is screwed up. If we find
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen pthread.h but we can't compile the pthread test program we still
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen think we can use threads. For that reason, the patch I posted
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen to the PR won't work as-is since a failed compile of the test
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen program means nothing.
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * exec cmd and suexec arg-passing enhancements
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen Status: Patches proposed
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen Message-ID: <20020526041748.A29148@prodigy.Redbrick.DCU.IE>
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen (see the "proc.patch" and "suexec-shell.patch" links in this message)
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * Get mod_cache/mod_mem_cache out of experimental (still some
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen work items left to complete)
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * The 2.0.36 worker MPM graceless shutdown changes work but are
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen a bit clunky on some platforms; eg, on Linux, the loop to
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen join each worker thread seems to hang, and the parent ends up
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen killing off the child with SIGKILL. But at least it shuts down.
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * --enable-mods-shared="foo1 foo2" is busted on Darwin. Pier
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen posted a patch (Message-ID: <B8DBBE8D.575A%pier@betaversion.org>).
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * We do not properly substitute the prefix-variables in the configuration
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen scripts or generated-configs. (i.e. if sysconfdir is etc,
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen httpd-std.conf points to conf.)
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen * If any request gets through ap_process_request_internal() and is
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen scheduled to be served by the core handler, without a flag that this
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen r->filename was tested by dir/file_walk, we need to 500 at the very
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen end of the ap_process_request_internal() processing so sub_req-esters
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen know this request cannot be run. This provides authors of older
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen modules better compatibility, while still improving the security and
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen robustness of 2.0.
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen Status: still need to decide where this goes, OtherBill comments...
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen Message-ID: <065701c14526$495203b0$96c0b0d0@roweclan.net>
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen [Deleted comments regarding the ap_run_handler phase, as irrelevant
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen as BillS points out that "common case will be caught in
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen default_handler already (with the r->finfo.filetype == 0 check)"
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen and the issue is detecting this -before- we try to run the req.]
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen gregames says: can this happen somehow without a broken module
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen being involved? If not, why waste cycles trying to defend against
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen potential broken modules? It seems futile.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen wrowe counters: no, it shouldn't happen unless the module is broken.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen But the right answer is to fail the request up-front in dir/file
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen walk if the path was entirely invalid; and we can't do that either
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen or we break modules that are unwilling to hook map_to_storage.
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * Rewrite core_output_filter. It is nearly impossible to support
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen it with predictable results as it is implemented now.
7bcb308d0e13dfa48b483b0addccd889a77bb598Timo Sirainen
7d548d4984752d74bfea8dc4bf1781a8996f43e7Timo Sirainen * With AP_MODE_EXHAUSTIVE in the core, it is finally clear to me
how the Perchild MPM should be re-written. It hasn't worked
correctly since filters were added because it wasn't possible to
get the content that had already been written and the socket at
the same time. This mode lets us do that, so the MPM can be
fixed.
* htpasswd blindly processes the file you give it, and does no
sanity checking before totally corrupting whatever file it was
you thought you had. It should check the input file and bail
if it finds non-comment lines that do not contain exactly 1
':' character.
Message-ID: <20020217150457.A31632@clove.org>
* Can a static httpd be built reliably?
Message-ID: <20020207142751.T31582@clove.org>
* [Ken] Test suite failures:
o worker is also failing some of the 'cgi' subtests
(see <URL:http://Source-Zone.Org/Apache/regression/>):
Justin says: "Worker should be fine and passes httpd-test here.
If you can provide evidence that it can be reproduced
outside of httpd-test, then it's a showstopper. I
think it's a perl or a httpd-test problem."
Not a showstopper: Justin
* Usage of APR_BRIGADE_NORMALIZE in core_input_filter should be
removed if possible.
Message-ID: <Pine.LNX.4.33.0201202232430.318-100000@deepthought.cs.virginia.edu>
Jeff wonders if we still care about this. It is no longer an
API issue but simply an extra trip through the brigade.
* There is a bug in how we sort some hooks, at least the pre-config
hook. The first time we call the hooks, they are in the correct
order, but the second time, we don't sort them correctly. Currently,
the modules/http/config.m4 file has been renamed to
modules/http/config2.m4 to work around this problem, it should moved
back when this is fixed. rbb
Justin says: "Is this really a showstopper? This has been here
forever. What's wrong? Does this have to do with
autoconf or m4?"
Not a showstopper: Justin, BrianP, trawick, gregames
* The Add...Filter and Set...Filter directives do not allow the
administrator to order filters, beyond the order of filename (mime)
extensions. It isn't clear if Set...Filter(s) should be inserted
before or after the Add...Filter(s) which are ordered by sequence of
filename extensions. At minimum, some sort of +-[0-10] syntax seems
like the quickest fix for a 2.0 gold release.
Justin says: "Could we delay this for a point release or 2.1?"
Not a showstopper: justin, wrowe, trawick, stoddard, Jim, Ian, Aaron,
gregames
* Get perchild to work on platforms other than Linux. This
will require a portable mechanism to pass data and file/socket
descriptors between vhost child groups. An API was proposed
on dev@apr:
Message-ID: <20020111115006.K1529@clove.org>
* Try to get libtool inter-library dependency code working on AIX.
Message-ID: <cm3n10lx555.fsf@rdu163-40-092.nc.rr.com>
Justin says: If we get it working on AIX, we can enable this
on all platforms and clean up our build system
somewhat.
Jeff says: I thought I tested a patch for you sometime in
January that you were going to commit within a few
days.
* Handling of %2f in URIs. Currently both 1.3 and 2.0
completely disallow %2f in the request URI path (see
ap_unescape_url() in util.c). It's permitted and passed
through in the query string, however. Roy says the
original reason for disallowing it, from five years ago,
was to protect CGI scripts that applied PATH_INFO to
a filesystem location and which might be tricked by
..%2f..%2f(...). We *should* allow path-info of the
form 'http://foo.com/index.cgi/path/to/path%2finfo'.
Since we've revamped a lot of our processing of path
segments, it would be nice to allow this, or at least
allow it conditionally with a directive.
* FreeBSD, threads, and worker MPM. All seems to work fine
if you only have one worker process with many threads. Add
a second worker process and the accept lock seems to be
lost. This might be an APR issue with how it deals with
the child_init hook (i.e. the fcntl lock needs to be resynced).
More examination and analysis is required.
Status: This has also been reported on Cygwin.
Message-ID: <3C2CC514.8EF3BED1@wapme-systems.de> (cygnus)
Justin says: So, FreeBSD-CURRENT and Cywin have the same
problem. Yum. If another platform has this
with worker, this becomes a showstopper.
Aaron says: I spent some time disecting this and have come to
the conclusion that it is not a problem in the worker MPM
(or at least, it is not isolated to a problem in worker).
I'll list some of the problems I'm seeing in case someone
else wants to pick up where I've left off:
- Delivery of just about any signal to one of the child
processes will send it into an infinite loop as well.
- Even though the parent is spinning out of control,
at first the child or children will appear to work
properly. At times it is possible to get it into a state,
however, where a request will hang until another concurrent
request "kicks" the first, at which point the second will
hang. My theory is that this has to do with the
pthread_cond_*() implementation in FreeBSD, but it's still
possible that it is in APR.
Justin adds: Oh, FreeBSD threads are implemented entirely with
select()/poll()/longjmp(). Welcome to the nightmare.
So, that means a ktrace output also has the thread
scheduling internals in it (since it is all the same to
the kernel). Which makes it hard to distinguish between
our select() calls and their select() calls.
*bangs head on wall repeatedly* But, some of the libc_r
files have a DBG_MSG #define. This is moderately helpful
when used with -DNO_DETACH. The kernel scheduler isn't
waking up the threads on a select(). Yum. And, I bet
those decrementing select calls have to do with the
scheduler. Time to brush up on our OS fundamentals.
* There is increasing demand from module writers for an API
that will allow them to control the server � la apachectl.
Reasons include sole-function servers that need to die if
an external dependency (e.g., a database) fails, et cetera.
Perhaps something in the (ever more abused) scoreboard?
rbb: I don't believe the scoreboard is the correct mechanism
for this. We already have a pipe that goes between parent
and child for graceful shutdown events, along with an API that
can be used to send a message down that pipe. In threaded MPMs,
it is easy enough to make that one pipe be used for graceful
and graceless events, and it is also easy to open that pipe
to both parent and child for writing. Then we just need to
figure out how to do graceless on non-threaded MPMs.
* Allow the DocumentRoot directive within <Location > scopes? This
allows the beloved (crusty) Alias /foo/ /somepath/foo/ followed
by a <Directory /somepath/foo> to become simply
<Location /foo/> DocumentRoot /somefile/foo (IMHO a bit more legible
and in-your-face.) DocumentRoot unset would be accepted [and would
not permit content to be served, only virtual resources such as
server-info or server-status.
This proposed change would _not_ depricate Alias.
* Win32: Rotatelogs sometimes is not terminated when Apache
goes down hard. FirstBill was looking at possibly tracking the
child's-child processes in the parent process.
OtherBill asks, wasn't this fixed?
stoddard: Not fixed. Shared scoreboard might offer a good
way for the parent to keep track of 'other child' processes
and whack them if the child goes down.
Other thoughts on walking the process chain using the NT kernel
have also been proposed on APR.
* Win32: Add a simple hold console open patch (wait for close or
the ESC key, with a nice message) if the server died a bad
death (non-zero exit code) in console mode.
Resolution: bring forward same ugly hacks from 1.3.13-.20
This is not so simple. Any exit() from APR or other libraries
can't be caught unless we add some sort of apr_exit(rv) with
registered apr_atexit() fn's that have the return code as an
argument to the registered fn.
* Eliminate unnecessary creation of pipes in mod_cgid
* Combine log_child and piped_log_spawn. Clean up http_log.c.
Common logging API.
* Document mod_file_cache.
* Platforms that do not support fork (primarily Win32 and AS/400)
Architect start-up code that avoids initializing all the modules
in the parent process on platforms that do not support fork.
* Win32: Migrate the MPM over to use APR thread/process calls. This
would eliminate some code in the Win32 branch that essentially
duplicates what is in APR.
* There are still a number of places in the code where we are
losing error status (i.e. throwing away the error returned by a
system call and replacing it with a generic error code)
* Mass vhosting version of suEXEC.
* All DBMs suffer from confusion in support/dbmmanage (perl script) since
the dbmmanage employs the first-matched dbm format. This is not
necessarily the library that Apache was built with. Aught to
rewrite dbmmanage upon installation to bin/ with the proper library
for predictable mod_auth_dbm administration.
Questions; htdbm exists, time to kill dbmmanage, or does it remain
useful as a perl dbm management example? If we keep it,
do we address the issue above?
* Integrate mod_dav.
Some additional items remaining:
- case_preserved_filename stuff
(use the new canonical name stuff?)
- find a new home for ap_text(_header)
- is it possible to remove the DAV: namespace stuff from util_xml?
* ap_core_translate() and its use by mod_mmap_static and mod_file_cache
are a bit wonky. The function should probably be exposed as a utility
function (such as ap_translate_url2fs() or ap_validate_fs_url() or
something). Another approach would be a new hook phase after
"translate" which would allow the module to munge what the
translation has decided to do.
Status: Greg +1 (volunteers), Ryan +1
* Explore use of a post-config hook for the code in http_main.c which
calls ap_fixup_virutal_hosts(), ap_fini_vhost_config(), and
ap_sort_hooks() [to reduce the logic in main()]
* read the config tree just once, and process N times (as necessary)
* (possibly) use UUIDs in mod_unique_id and/or mod_usertrack
* (possibly) port the bug fix for PR 6942 (segv when LoadModule is put
into a VirtualHost container) to 2.0.
* shift stuff to mod_core.h
* callers of ap_run_create_request() should check the return value
for failure (Doug volunteers)
* Win32: Get Apache working on Windows 95/98. The following work
(at least) needs to be done:
- Document warning that OSR2 is required (for Crypt functions, in
rand.c, at least.) This could be resolved with an SSL library, or
randomization in APR itself.
- Bring the Win9xConHook.dll from 1.3 into 2.0 (no sense till it
actually works) and add in a splash of Win9x service code.
* Fix the worker MPM to use POD to kill child processes instead
of ap_os_killpg, regardless of how they should die. (Ryan Bloom)
* Scoreboard structures could be changed in the future such that
proper alignment is not maintained, leading to segfaults on
some systems. Cliff posted a patch to deal with this issue but
later recanted. See this message to dev@apr.apache.org:
Message-ID: <Pine.LNX.4.44.0203011354090.16457-200000@deepthought
.cs.virginia.edu>
TODO ISSUES REMAINING IN MOD_SSL:
* In order to use a DSO version of mod_ssl we have to link with
-lssl and -lcrypto. A workaround is in place right now where the
entire EXTRA_LIBS macro is being appended to the objects list, but
this is a hack. We should either revamp the APACHE_CHECK_SSL_TOOLKIT
autoconf function or come up with some other autoconf checks to
search for libssl and libcrypto and properly add them to mod_ssl's
link flags.
* SSL renegotiations in combination with POST request
* Port or dispose all code inside #if 0...#endif blocks that remain
from the porting effort.
* Do we need SSL_set_read_ahead()?
* the ssl_expr api is NOT THREAD SAFE. race conditions exist:
-in ssl_expr_comp() if SSLRequire is used in .htaccess
(ssl_expr_info is global)
-is ssl_expr_eval() if there is an error
(ssl_expr_error is global)
* SSLRequire directive (parsing of) leaks memory
* Diffie-Hellman-Parameters for temporary keys are hardcoded in
ssl_engine_dh.c, while the comment in ssl_engine_kernel.c says:
"it is suggested that keys be changed daily or every 500
transactions, and more often if possible."
* ssl_var_lookup could be rewritten to be MUCH faster
* CRL callback should be pluggable
* session cache store should be pluggable
* init functions should return status code rather than ssl_die()
* ssl_engine_pphrase.c needs to be reworked so it is generic enough
to also decrypt proxy keys
* the shmcb code should just align its memory segment rather than
jumping through all the "safe" memcpy and memset hoops
EXPERIMENTAL MODULES:
Experimental modules should eventually be be promoted to fully supported
status or removed from the repository entirely (ie, the
'experiment' failed). This section tracks what needs to happen to
get the modules promoted to fully supported status.
mod_cache/mod_mem_cache/mod_disk_cache:
* mod_cache: handle cache_control: no_cache "field_name" to enable
cacheing the response w/o header "field_name"
See RFC2616 section 14.9.1
* mod_cache: CacheEnable/CacheDisable should accept regular expressions.
* mod_cache: Fix dependency on ATOMIC operators. Need
APR_HAS_ATOMIC_* feature macros.
* mod_disk_cache: Implement garbage collection
* mod_mem_cache/mod_disk_cache: Need to be able to query cache
status (num of entries, cache object properties, etc.).
mod_status could be extended to query optional hooks defined
by modules for the purpose of reporting module status.
mod_cache (et. al.) could define optional hooks that are called
to collect status. Status should be queryable by
HTTP or SNMP?
* mod_mem_cache: garbage collection. One strategy is to simply
remove stale entries as we attempt to serve them. Another
strategy is to kick off a GC thread that traverses the cache
and preemptively remove stale entries. How to manage a
cache that is full? Do LRU GC? Other? Bueller?
* mod_mem_cache/mod_disk_cache: Complete implementing config
directives.
* Sample config for mod_cache/mod_mem_cache/mod_disk_cache for
inclusion into httpd.conf.
* mod_cache/mod_mem_cache/mod_disk_cache: Documentation.
PRs that have been suspended forever waiting for someone to
put them into 'the next release':
* documentation and Q&A
PR#2221: Make online documentation search link back to my installation
Status:
PR#2906: Propose that Apache recommend $UNIQUE_ID for all "session id"
algorithms
Status:
PR#2793: When will Apache support P3P? Any Plans?
Status:
* build
PR#2113: HTTP Server Rebuild Line Needs Changing for the better
Status:
PR#2421: problem specifying ndbm library for build ?with autoconfigure
Status:
* config
PR#76: missing call to "setlocale();"
Status:
PR#628: Request of "Options SymLinksIfGroupMatch"
Status:
PR#793: RLimitCPU and RLimitMEM don't apply to all children like they should
Status:
PR#922: it is useful to allow specifiction that root-owned symlinks
should always be followed
Status:
PR#1028: DoS attacks involving memory consumption
Status:
PR#1191: setlogin() is not called, causing problems with e.g. identd
Status:
PR#1204: regerror() exists, use it
Status:
PR#2284: Can not POST to ErrorDocument - Apache/1.3b6
Status:
PR#2396: Proposal for TimeZone directive
Status:
PR#2446: AllowOverride FileInfo is too coarse
Status:
PR#2760: [PATCH] User/Group for <Directory> and <Location> i.e. not only
in global and <Virtual>.
Status:
PR#2907: suggestion: power up your Include directive :)
Status:
PR#3018: cannot limit some HTTP methods
Status:
PR#3677: New ErrorDocumentMatch directive
Status:
PR#4244: "Files" and "FilesMatch" regexp does not recognize bang as
negation operator
Status:
PR#5993: AllowOverride should have a 'CheckNone' and 'AllowNone' argument
instead of only 'None'
Status:
* mod_access
PR#537: mod_access syntax allows hosts that should be restricted
Status:
PR#1287: add allow,deny/deny,allow warning to mod_access
Status:
PR#2512: <IfDenied> directive wanted
Status:
* mod_auth-any
PR#557: ~UserHome directories are not honored in absolute pathname
requests (.htaccess)
Status:
PR#1117: Using NIS passwd.byname dbm files with AuthDBMUserFile
Status:
PR#1809: Suggestion for improving authentication modules and core source
code, problem with 401 and ErrorDocument
Status:
* mod_autoindex
PR#1263: Add frame-safe anchor attribute to mod_autoindex links
Status:
* mod_cgi (and suexec)
PR#921: suexec Uses cwd before filling it in, doesn't use syslog
Status:
PR#1176: Apache cannot handle continuation line in headers
Status:
PR#1120: suexec does not parse arguments to #exec cmd
Status:
PR#1268: CGI scripts running as Apache user: security (suexec etc.)
Status:
PR#1285: Error messages could be easier to spot in cgi.log file for suexec.c
Status:
PR#1905: suexec - Allow modules to set user:group for execution.
Status:
PR#2360: suexec for general access of user content?
Status:
PR#2460: TimeOut applies to output of CGI scripts
Status:
PR#2573: CGI's for general use still have to be run as another user
with suExec
Status:
PR#4241: Need to be able to override shebang line to make CGI scripts
more portable.
Status:
PR#4490: mod_cgi prevents handling of OPTIONS requests
Status:
* mod_env
PR#370: Modified PATH environemnt variable is not passed, instead
system's is used
Status:
* mod_headers
PR#1383: I make mod_headers to modify request headers as well as
response ones.
Status:
PR#1677: mod_headers should allow mod_log_config-style formats in
header values
Status:
* mod_imap
PR#759: imap should read <MAP><AREA>*</MAP> too!
Status:
* mod_include
PR#78: Additional status for XBitHack directive
Status:
PR#623: A smarter "Last Modified" value for SSI documents (see PR number 600)
Status:
PR#1145: mod_include
Allow for Last-Modified: without resorting to XBitHack
Status:
PR#1803: patches to mod_include to allow for file tests
Status:
PR#4459: Suggestion for better handling of Last-modified headers
Status:
* mod_info
PR#2415: /server-info doesn't check for the virtual host to list the info
Status:
* mod_log-any
PR#1050: Logging of virtual server to error_log as well
Status:
PR#1358: Selective url-encode of log fields (or maybe a pseudo
log_rewrite module?)
Status:
PR#2073: pipelined connections are not logged correctly
Status:
PR#4448: Please allow CGI env variables (QUERY_STRING, ...) to be logged
with %{}e
Status:
* mod_negotiation
PR#3191: no way to set global quality-of-source (qs) coneg values
with multiviews
Status:
* mod_proxy
PR#362: Mod_proxy doesn't allow change of error pages
Status:
PR#440: Proxy doesn't deliver documents if not connected
Status:
PR#534: proxy converts ~name to %7Ename when name starts with a dot (.)
Status:
PR#612: Proxy FTP Authentication Fails
Status:
PR#700: Proxy doesn't do links right for OpenVMS files through ftp:
Status:
PR#980: Controlling Access to Remote Proxies would be nice...
Status:
PR#994: Adding authentication "on the fly" through the proxy module
Status:
PR#1085: ProxyRemote make a dead cycle.
Status:
PR#1166: ``nph-'' not honored (no buffering) for ProxyRemote mapping
Status:
PR#1290: Need to know "hit-rate" on proxy cache
Status:
PR#1532: Proxy transfer logging
Status:
PR#1547: No HTTP_X_FORWARDED_FOR set...
Status:
PR#1567: ProxyRemote proxy requests fail authentication by firewall
Status:
PR#1702: mod_proxy to support persistent conns?
Status:
PR#1878: listing of proxy cache content
Status:
PR#2314: patterns in ProxyRemote
Status:
PR#2648: Cache file names in Proxy module
Status:
PR#3568: Accessing URL through proxy server corrupts data.
Status:
PR#3605: Some anonymous FTP URLs ask for authentication
Status:
* mod_rewrite
PR#1582: mod_rewrite forms REQUEST_URI different than mod_cgi does
Status:
PR#2074: mod_rewrite doesn't pass Proxy Throughput on internal subrequests
Status:
* mod_status
PR#2138: mod_status always displays 256 possible connection slots
Status:
PR#2343: Status module averages are for entire uptime
Status:
* apache-api
PR#1004: request_config field in request_rec is moderately bogus
Status:
PR#1158: improvements to child spawning API
Status:
PR#1233: there is no way to keep per-connection per-module state
Status:
PR#2024: adding auth_why to conn_rec
Status:
PR#2873: Feedback/Comment on APACI
Status:
PR#3143: No module specific data hook for per-connection data
Status:
* generally odds and ends
PR#2431: A small addition to rotatelogs.c to improve program functionality.
Status:
PR#2763: mailto tags and bundling bug report script
Status:
PR#2785: os-aix Support for System Resource Controller
Status:
PR#2889: Inclusion of RPM spec file in CVS/distributions
Status:
PR#5713: os-windows [PATCH] install as win32 service with domain account
Status: Cannot accept password-as-arg, we should prompt the
user when -k install/-k config with a user argument.
Other bugs that need fixing:
* ap_discard_request should be converted to use the bucket API
directly rather than waste cycles copying buffers with the old API.
* MaxRequestsPerChild measures connections, not requests.
Until someone has a better way, we'll probably just rename it
"MaxConnectionsPerChild".
* Regex containers don't work in an intutive way
Status: No one has come up with an efficient way to fix this
behavior. Dean has suggested getting rid of regex containers
completely.
OtherBill suggests: We at least seem to agree on eliminating
the <Container ~ foo> forms, and using only
<ContainerMatch foo> semantics.
* SIGSEGV on Linux (glibc 2.1.2) isn't caught properly by a
sigwaiting thread. We need to work around this, perhaps unless
there is hope soon for a fixed glibc.
* orig_ct in the byterange/multipart handling may not be
needed. Apache 1.3 just never stashed "multipart" into
r->content_type. We should probably follow suit since the
byterange stuff doesn't want the rest of the code to see the
multipart content-type; the other code should still think it is
dealing with the <orig_ct> stuff.
Status: Greg volunteers to investigate (esp. since he was most
likely the one to break it :-)
Binaries (2.0.39):
Platform Avail. Volunteer
------------------------------------------------------------------
AIX 4.3.3 no Bill Stoddard
Mandrake 8.1 no Ryan Bloom
FreeBSD 4.1 no Ryan Bloom
hppa2.0w-hp-hpux11.00 yes Cliff Woolley
i386-pc-solaris2.8 yes Aaron Bannert
i386-unknown-freebsd4.5 no
i386-unknown-freebsd4.6 yes Aaron Bannert
i686-pc-linux-gnu yes Aaron Bannert
i686-pc-linux-gnu-rh70 yes Aaron Bannert
ia64-hp-hpux11.20 yes Cliff Woolley
powerpc-apple-darwin5.5 yes Aaron Bannert
powerpc-unknown-linux-gnu yes Graham Leggett
sparc-sun-solaris2.8 yes Jim Jagielski
NetWare yes Brad Nicholes
OS/2 yes Brian Havard
Win32-x86 yes William Rowe
Other features that need writing:
* Finish infrastructure in core for async MPMs
Status: post 2.0
* TODO in source -- just do an egrep on "TODO" and see what's there
Available Patches:
* Martin Sojka <msojka@gmx.de>'s patch to add error reporting for failed
htpasswd actions due to a full /tmp volume (other programs may have
similar problems?)
PR: 6475
Status:
* Mike Abbott's <mja@trudge.engr.sgi.com> patches to improve
performance
Status: These were written for 1.3, and are awaiting a port to
2.0
* Jim Winstead's <jimw@trainedmonkey.com> patch to add CookieDomain and
other small mod_usertrack features
* Dan Rench's <drench@xnet.com> patch to add allow the errmsg and timefmt
of SSI's to be modified in the config file. Patch is available in
PR6193