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Posted to bugs@httpd.apache.org by bu...@apache.org on 2016/03/04 22:03:04 UTC

[Bug 59121] New: The fix to mod_http2 for bug 59078 broke server-status

https://bz.apache.org/bugzilla/show_bug.cgi?id=59121

            Bug ID: 59121
           Summary: The fix to mod_http2 for bug 59078 broke server-status
           Product: Apache httpd-2
           Version: 2.4.18
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P2
         Component: mod_http2
          Assignee: bugs@httpd.apache.org
          Reporter: nanook@eskimo.com

Created attachment 33624
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=33624&action=edit
A screen shot showing thread as 'r' when most of them are really 'k'.

After downloading and installing the http2 module that fixed the problem with
processes being stuck in gracefully exiting after doing a graceful restart, as
identified in bug #59078, while the fix did fix that problem it introduced a
new
problem, now processes in keep-alive are instead displaying as 'R' read in the
server-status instead of 'K' for keep-alive.  But server-status still counts
the
number in keep-alive in the upper portion.

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[Bug 59121] The fix to mod_http2 for bug 59078 broke server-status

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59121

--- Comment #1 from Stefan Eissing <st...@eissing.org> ---
Sorry, for responding so late.

As I see it, the scoreboard shows 45 threads that occupy workers, most of them
in R, some in W. This does *not* show the connections in keepalive stat, as in
the event MPM, these connections do not occupy a worker slot.

If you see the scoreboard of a worker MPM, you indeed see 'K' workers, as
keepalive handling continues to occupy worker threads.

So, I think this is a misunderstanding of how event and scoreboard display
things. But maybe I misunderstood what you meant?

Stefan

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[Bug 59121] The fix to mod_http2 for bug 59078 broke server-status

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59121

--- Comment #2 from Robert Dinse <na...@eskimo.com> ---
This server is setup with the Event MPM and WAS showing workers in the 'K'
keep-alive state until the fix for this module that corrected the getting stuck
in graceful existing state.  And if you look at the top, you'll see it still
shows a count with a number of workers in keep-alive even though the scoreboard
does not.

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[Bug 59121] The fix to mod_http2 for bug 59078 broke server-status

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59121

Stefan Eissing <st...@eissing.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

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[Bug 59121] The fix to mod_http2 for bug 59078 broke server-status

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59121

Stefan Eissing <st...@eissing.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Stefan Eissing <st...@eissing.org> ---
Server status behaviour has been restored in 2.4.20.

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