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  1. Dec 05, 2016
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  7. Dec 02, 2016
    • William A. Rowe Jr's avatar
      Add testing hint · 772f3818
      William A. Rowe Jr authored 
      git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772404 13f79535-47bb-0310-9956-ffa450edef68
      772f3818
    • Jim Jagielski's avatar
      silence warning. No functional change · 413df2db
      Jim Jagielski authored 
      
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772337 13f79535-47bb-0310-9956-ffa450edef68
      413df2db
    • Jim Jagielski's avatar
      Merge r1770771 from trunk: · 86db1247
      Jim Jagielski authored 
      Describe new behavior of ServerLimit

This has changed a bit after the fix for PR 53555. Better wording is welcome.


Submitted by: sf
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772336 13f79535-47bb-0310-9956-ffa450edef68
      86db1247
    • Jim Jagielski's avatar
      Merge r1738631, r1738633, r1738635, r1757030, r1757031, r1770752, r1770768 from trunk: · e7407f84
      Jim Jagielski authored 
      Don't take over scoreboard slots from gracefully finishing threads

Otherwise the old and the new thread will both update the same scoreboard slot
with undefined results.



add comments

Document which directives set which variables


Make ap_find_child_by_pid() look at all slots that have ever been used.

This is preparation to allow to use more scoreboard slots in mpm event.


mpm_event: minor code simplification

- move variable initializations into declarations
- use max_workers variable


mpm_event: don't re-use scoreboard slots that are still in use

This causes inconsistent data in the scoreboard (due to async
connections) and makes it difficult to determine what is going on.
Therefore it is not a useful fix for the scoreboard-full issues (PR
53555).

The consent on the dev list is that we should allocate/use more
scoreboard entries instead.


Use all available scoreboard slots

Allow to use all slots up to ServerLimit. This makes 'scoreboard full'
errors much less likely.

And if ther is a situation where the scoreboard is full, don't make any
more processes finish gracefully due to reduced load until some old
processes have terminated. Otherwise, the situation would get worse once
the load increases again.

ap_daemon_limit is renamed to the more descriptive active_server_limit,
to make sure that all its uses are taken care of.

PR 53555



mpm_event: add clarifying comment

from jim

Submitted by: sf
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772335 13f79535-47bb-0310-9956-ffa450edef68
      e7407f84
    • Jim Jagielski's avatar
      Merge r1705922, r1706523, r1738464, r1738466, r1738486 from trunk: · a61a4bd0
      Jim Jagielski authored 
      When shutting down a process, free resources early

Due to lingering connections, shutting down a process may take a very
long time. Free all recycled pools early in the hope that we can already
give some memory back to the OS.


rename some variables to be more descriptive

pid -> pslot
tid -> tslot
remove unused 'sd'


Terminate keep-alive connections when dying

When shutting down a process gracefully, terminate keep-alive connections so
that we don't get any new requests which may keep the dying process alive
longer.



Exit threads early during shutdown

During graceful shutdown, if there are more running worker threads than open
connections, terminate some threads. This frees resources faster, which may be
needed for new processes.



Exit threads early during shutdown, part 2

Follow up to r1738466: During graceful shutdown, when the listener thread is
closing a connection, it needs to wake up a worker thread so that it may
terminate.


Submitted by: sf
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772334 13f79535-47bb-0310-9956-ffa450edef68
      a61a4bd0
    • Jim Jagielski's avatar
      Merge r1738628, r1757009, r1756848, r1757029 from trunk: · a489a662
      Jim Jagielski authored 
      Display process slot number in the async overview 


Fix the number of column for 'Async connections'.
There are only 3 columns (writing, keep-alive, closing), not 4.

Try to improve the code layout for it to be more readable.
Each <th> is on its own line so keep the corresponding "colspan" <td> fields grouped together.

r1738628 introduced a new column, 'Slot'.
Add an empty cell for it in the last line of the table, in order to fix the layout of the Totals.

Replace tab by spaces to be consistent

mod_status: note stopping procs in async info table

* add new column "stopping", denoting if a process is shutting down
* add additional "(old gen)", if a process is from before a graceful reload
* add counts of processes and stopping processes to summary line


Submitted by: sf, jailletc36, jailletc36, sf
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772333 13f79535-47bb-0310-9956-ffa450edef68
      a489a662
    • Jim Jagielski's avatar
      Merge r1757061, r1770750 from trunk: · a9077d1c
      Jim Jagielski authored 
      ap_reclaim_child_processes() ignores its first argument

note this in the docs, add comment


ap_reclaim_child_processes(): Implement terminate immediately

The behavior for terminate == 1 was documented but not implemented. Do
that now.



Submitted by: sf
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772332 13f79535-47bb-0310-9956-ffa450edef68
      a9077d1c
    • Jim Jagielski's avatar
      Merge r1597533, r1649491, r1665216, r1756553, r1756631, r1726675, r1718496,... · 92230a27
      Jim Jagielski authored 
      Merge r1597533, r1649491, r1665216, r1756553, r1756631, r1726675, r1718496, r1718476, r1747469 from trunk:

mod_cache: try to use the key of a possible open but stale cache entry
if we have one in cache_try_lock(). PR 50317

Submitted by: Ruediger Pluem


* modules/cache/mod_socache_memcache.c (socache_mc_store): Pass
  through expiration time.

Submitted by: Faidon Liambotis <paravoid debian.org>, jorton


* mod_cache: Preserve the Content-Type in case of 304 response.
304 does not contain Content-Type and mod_mime regenerates
the Content-Type based on the r->filename. This later leads to original
Content-Type to be lost (overwriten by whatever mod_mime generates).


mod_cache: Use the actual URI path and query-string for identifying the
cached entity (key), such that rewrites are taken into account when
running afterwards (CacheQuickHandler off).  PR 21935.
 


mod_cache: follow up to r1756553: log the real/actual cached URI (debug).



better s-maxage support
 
+  *) mod_cache: Consider Cache-Control: s-maxage in expiration
+     calculations.  [Eric Covener]
+
+  *) mod_cache: Allow caching of responses with an Expires header
+     in the past that also has Cache-Control: max-age or s-maxage.
+     PR55156. [Eric Covener]




remove dead code leftover from r1023387. 

Prior to this revision, there was an apr_atoi64 in this context.
Now, ap_cache_control() sets control.max_age (which is checked here) when
the maxage value was parsed OK.



duplicate debug-level AH00764 in the just-validated path.



Rename ap_casecmpstr[n]() to ap_cstr_casecmp[n](), update with APR doxygen
Submitted by: jkaluza, jorton, jkaluza, ylavic, ylavic, covener, covener, covener, wrowe
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772331 13f79535-47bb-0310-9956-ffa450edef68
      92230a27
    • Jim Jagielski's avatar
      Merge r1702948, r1759415 from trunk: · 3d553bea
      Jim Jagielski authored 
      httpd compiles warning free on gcc and every new warning will be treated as an error, standard c-89 is enforced

http_config: follow up to r1702948: maybe unused, yet maybe usefull too.
Submitted by: icing, ylavic
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1772330 13f79535-47bb-0310-9956-ffa450edef68
      3d553bea
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