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Posted to bugs@httpd.apache.org by bu...@apache.org on 2011/12/30 21:16:47 UTC

DO NOT REPLY [Bug 52402] New: balancer setup crashes apache during start

https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

             Bug #: 52402
           Summary: balancer setup crashes apache during start
           Product: Apache httpd-2
           Version: 2.4-HEAD
          Platform: PC
            Status: NEW
          Severity: regression
          Priority: P2
         Component: mod_proxy_balancer
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: JBlond@gmail.com
    Classification: Unclassified


Apache crashes during startup. httpd -S fails /shows nothing, also httpd -M
fails shows nothing. apache installed as service. version 2.3.16 beta (VC9 x64)
OS: win7 ultimate x64

error log:
Starting the Apache2.4 service
The Apache2.4 service is running.
[proxy:debug] [pid 3632:tid 428] mod_proxy.c(1932): AH01147: Defining worker
'http://servera:80' for balancer 'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1937): AH01148: Defined worker 'http://servera' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1932): AH01147: Defining worker 'http://serverb:80' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1937): AH01148: Defined worker 'http://serverb' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1932): AH01147: Defining worker 'http://serverc:80' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1937): AH01148: Defined worker 'http://serverc' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1932): AH01147: Defining worker 'http://serverd:80' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.972797 2011] [proxy:debug] [pid 3632:tid 428]
mod_proxy.c(1937): AH01148: Defined worker 'http://serverd' for balancer
'balancer://mycluster'
[Fri Dec 30 20:55:42.987797 2011] [proxy_balancer:debug] [pid 3632:tid 428]
mod_proxy_balancer.c(742): AH01178: Doing balancers create: 544, 1 (6)
[Fri Dec 30 20:55:42.988797 2011] [proxy_balancer:debug] [pid 3632:tid 428]
mod_proxy_balancer.c(796): AH01184: Doing workers create: balancer://mycluster
(s96f9938e_mycluster), 512, 4
[Fri Dec 30 20:55:43.003798 2011] [proxy_balancer:debug] [pid 3632:tid 428]
mod_proxy_balancer.c(742): AH01178: Doing balancers create: 544, 1 (6)
[Fri Dec 30 20:55:43.003798 2011] [proxy_balancer:debug] [pid 3632:tid 428]
mod_proxy_balancer.c(796): AH01184: Doing workers create: balancer://mycluster
(s96f9938e_mycluster), 512, 4
[Fri Dec 30 20:55:43.004798 2011] [proxy_balancer:emerg] [pid 3632:tid 428]
(22)Invalid argument: AH01186: worker slotmem_grab failed
AH00020: Configuration Failed


loaded modules:
mod_alias
mod_auth_basic
mod_authn_core
mod_authn_file
mod_authz_core
mod_authz_groupfile
mod_authz_host
mod_authz_user
mod_autoindex
mod_cgi
mod_deflate
mod_dir
mod_env
mod_filter
mod_headers
mod_include
mod_lbmethod_bybusyness
mod_lbmethod_byrequests
mod_lbmethod_bytraffic
mod_log_config
mod_mime
mod_negotiation
mod_proxy
mod_proxy_balancer
mod_proxy_express
mod_proxy_http
mod_setenvif
mod_slotmem_plain
mod_slotmem_shm
mod_socache_memcache
mod_socache_shmcb
mod_vhost_alias

test setup

<VirtualHost *:80>
    ServerAdmin info@localhost
    ServerName localhost
    ServerAlias servera serverb serverc serverd
    DocumentRoot "/Apache23/htdocs"
</VirtualHost>



<Proxy balancer://mycluster>
    BalancerMember http://servera:80
    BalancerMember http://serverb:80
    BalancerMember http://serverc:80
    BalancerMember http://serverd:80
</Proxy>
    ProxyPass / balancer://mycluster
    ProxyPassReverse / balancer://mycluster 

<Location /balancer-manager>
    SetHandler balancer-manager
</Location> 


see also
http://old.nabble.com/Notice%3A-Intent-to-T-R-httpd-2.3.15-this-week.-td32590965.html

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #9 from Gregg L. Smith <gl...@gknw.net> 2012-02-13 03:26:50 UTC ---
I'm to blame on this. I see the problem in installwinconf.awk. 

Fixed Trunk: r1243404
2.4: r1243405

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #33 from Jackie Rosen <ja...@hushmail.com> ---
*** Bug 260998 has been marked as a duplicate of this bug. ***
Seen from the domain http://volichat.com
Page where seen: http://volichat.com/adult-chat-rooms
Marked for reference. Resolved as fixed @bugzilla.

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #30 from Colin Adams <co...@gmail.com> ---
I am getting just this problem (AH01186: worker slotmem_grab failed) with 2.4.3
on Windows XP (64-bit).

The last comment seems to say that there is a fix, but I infer that it will
require compiling from source. Is that correct?

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #10 from Mario Brandt <JB...@gmail.com> 2012-02-13 10:32:31 UTC ---
Works on non localhost. Thanks for the hint with the paths and the fix svn.
With external servers works fine now. 

With the original setup on only localhost I have now

--- snip ---
Bad Request

Your browser sent a request that this server could not understand.
Size of a request header field exceeds server limit.

X-Forwarded-Server
--- /snip ---

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Mario Brandt <JB...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Platform|Other                       |PC
         OS/Version|Linux                       |All

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Florian S. <s9...@stud.uni-saarland.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |s9flschr@stud.uni-saarland.
                   |                            |de

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #12 from Mario Brandt <JB...@gmail.com> 2012-02-27 21:25:59 UTC ---
With apache 2.4.1 it works if I change the balancer root to /test

e.g.
ProxyPass /test/ balancer://mycluster
ProxyPassReverse /test/ balancer://mycluster

Having the the old way 
ProxyPass / balancer://mycluster
ProxyPassReverse / balancer://mycluster

I get a 502. Any idea how to fix this?

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Mario Brandt <JB...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         OS/Version|                            |All

--- Comment #1 from Mario Brandt <JB...@gmail.com> 2012-01-01 18:00:30 UTC ---
Commenting out all BalancerMember http://... let apache run again, and I can
see than the Load Balancer Manager page. Clicking on the balancer://mycluster
link (http://localhost/balancer-manager?b=mycluster) crashes the connection,
but apache keeps running.

in the windows event log
Protokollname: Application
Quelle:        Application Error
Datum:         01.01.2012 18:58:15
Ereignis-ID:   1000
Aufgabenkategorie:(100)
Ebene:         Fehler
Schlüsselwörter:Klassisch
Benutzer:      Nicht zutreffend
Computer:      zengarden
Beschreibung:
Name der fehlerhaften Anwendung: httpd.exe, Version: 2.3.16.0, Zeitstempel:
0x4eebe6cb
Name des fehlerhaften Moduls: mod_proxy_balancer.so, Version: 2.3.16.0,
Zeitstempel: 0x4eebe6a6
Ausnahmecode: 0xc0000005
Fehleroffset: 0x0000000000002db0
ID des fehlerhaften Prozesses: 0x86c
Startzeit der fehlerhaften Anwendung: 0x01ccc8aee7051bb9
Pfad der fehlerhaften Anwendung: C:\Apache23\bin\httpd.exe
Pfad des fehlerhaften Moduls: C:\Apache23\modules\mod_proxy_balancer.so
Berichtskennung: 2d7508eb-34a2-11e1-90ed-f0def11c30f7
Ereignis-XML:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2012-01-01T17:58:15.000000000Z" />
    <EventRecordID>1259</EventRecordID>
    <Channel>Application</Channel>
    <Computer>zengarden</Computer>
    <Security />
  </System>
  <EventData>
    <Data>httpd.exe</Data>
    <Data>2.3.16.0</Data>
    <Data>4eebe6cb</Data>
    <Data>mod_proxy_balancer.so</Data>
    <Data>2.3.16.0</Data>
    <Data>4eebe6a6</Data>
    <Data>c0000005</Data>
    <Data>0000000000002db0</Data>
    <Data>86c</Data>
    <Data>01ccc8aee7051bb9</Data>
    <Data>C:\Apache23\bin\httpd.exe</Data>
    <Data>C:\Apache23\modules\mod_proxy_balancer.so</Data>
    <Data>2d7508eb-34a2-11e1-90ed-f0def11c30f7</Data>
  </EventData>
</Event>

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Gregg L. Smith <gl...@gknw.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gls@gknw.net

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Mario Brandt <JB...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |PatchAvailable

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #31 from Zisis Lianas <zl...@consol.de> ---
That's right - you can build from sources to get this fixed or wait for the
2.4.4 release, which will fix the issue, see:
http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?revision=1422877&view=markup

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #14 from msubbareddy <m_...@hotmail.com> 2012-03-06 22:18:54 UTC ---
Server is runnable, upon compiling without --enable-proxy
--enable-proxy-balancer --enable-proxy-http options.

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #17 from Florian S. <s9...@stud.uni-saarland.de> 2012-03-09 12:22:08 UTC ---
It looks like each balancer creates the SHM for its number of workers (1
in my case) using its unique ->sname. After that, each worker grabs a
slot from this.

I have several virtual hosts pointing to the same balancer (by rewrite
[P]). So, the second time, the balancer calls shm's slotmem_create again
with its name, that already exists -> kind-of noop.

Now, the SHM under the balancer's name has still only 1 slot (that is
already occupied).

When the worker now wants to (re-)grab its slot, I get:

[slotmem_shm:debug] mod_slotmem_shm.c(575): AH02293: slotmem(...) grab
failed. Num 1/num_free 0 [proxy_balancer:emerg] (22)Invalid argument:
AH01186: worker slotmem_grab failed

Does anybody know the intention behind this?

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

msubbareddy <m_...@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #15 from msubbareddy <m_...@hotmail.com> 2012-03-07 02:03:10 UTC ---
Got it, this is no issue with proxy enabled option.
Its basically required to enable the corresponding required module!

[proxy_balancer:emerg] [pid 29584] AH01177: Failed to lookup provider 'shm' for
'slotmem': is mod_slotmem_shm loaded??

by uncommenting the below entry, server has ran without any issue by using
2.4.1 without any additional patches.

LoadModule slotmem_shm_module modules/mod_slotmem_shm.so

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #24 from Mario Brandt <JB...@gmail.com> ---
The patch works for me, too!

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Micha Lenk <mi...@lenk.info> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |micha@lenk.info

--- Comment #20 from Micha Lenk <mi...@lenk.info> ---
This issue still isn't fixed.

What about applying the patch proposed on the mailinglist some time ago?
http://mail-archives.apache.org/mod_mbox/httpd-dev/201204.mbox/%3C1334306253.1695.50.camel%40florian-desktop%3E

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #6 from Mladen Turk <mt...@apache.org> 2012-02-03 14:17:13 UTC ---
Fixed both in the trunk and 2.4.x
Could you check if r1240170 fixes the issue on your side?

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Mario Brandt <JB...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #29 from Zisis Lianas <zl...@consol.de> ---
(In reply to comment #27)
> Trunk handles this differently and that code path is projected to be
> backported. Can you check that trunk works for you?

Jim, just tested httpd-trunk (r1406270) and I can confirm that the issue is
fixed now.

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #7 from Mario Brandt <JB...@gmail.com> 2012-02-07 22:15:55 UTC ---
Now lbmethod_bybusyness_module nor lbmethod_byrequests_module nor
lbmethod_bytraffic_module. No issue while building.
Without that modules I get

C:\Apache2x\bin>httpd -S
AH00526: Syntax error on line 209 of C:/Apache2x/conf/httpd.conf:
BalancerMember Can't find 'byrequests' lb method

Than I tried to load each module single, but they don't load at all.

C:\Apache2x\bin>httpd -S
httpd: Syntax error on line 121 of C:/Apache2x/conf/httpd.conf: Cannot load
C:/Apache2x/mod_lbmethod_bybusyness.so into server: Das angegebene Modul wurde
nicht gefunden.


C:\Apache2x\bin>httpd -S
httpd: Syntax error on line 122 of C:/Apache2x/conf/httpd.conf: Cannot load
C:/Apache2x/mod_lbmethod_byrequests.so into server: Das angegebene Modul wurde
nicht gefunden.


C:\Apache2x\bin>httpd -S
httpd: Syntax error on line 123 of C:/Apache2x/conf/httpd.conf: Cannot load
C:/Apache2x/mod_lbmethod_bytraffic.so into server: Das angegebene Modul wurde n
icht gefunden.



Positive I can say that the module itself now load without apache crashing

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Stefan Fritsch <sf...@sfritsch.de> changed:

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

--- Comment #32 from Stefan Fritsch <sf...@sfritsch.de> ---
fixed in 2.4.4

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #19 from Arun Janarthanan <ar...@gmail.com> 2012-03-26 14:40:24 UTC ---
All,

I had similar error when the balancer included outside from Virtual host, for
testing I did include the balancer file inside the virtual host and it did work
and nolonger getting the error.



<VirtualHost abc.com:80>

Include conf/abc.com.conf

Include conf/balancer_ab.conf
Include conf/balancer_xyz.conf

</VirtualHost>

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #18 from paulzhou <pa...@gmail.com> 2012-03-20 01:49:57 UTC ---
I also encounter such issue. The virtual hosts configuration is as below:

<VirtualHost *:80>
   ServerAdmin webmaster@www.mydomain.sites
   ServerName www.mydomain.sites
   ProxyPass /google http://www.google.com/
   ErrorLog "logs/www.mydomain.sites-error_log"
   CustomLog "logs/www.mydomain.sites-access_log" common
</VirtualHost>
<Proxy balancer://testBalancer>
BalancerMember http://www.app03.v2/
BalancerMember http://www.app03.v22/
</Proxy>

Linux: Ubuntu 10.10 i686 x32 bit
Apache2: 2.4.1

By above configuration, it crash apache during start.
error log:
[proxy_balancer:emerg] [pid 11746:tid 3077961472] (22)Invalid argument:
AH01186: worker slotmem_grab failed


Any help is appreciated.

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Jim Jagielski <ji...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEEDINFO

--- Comment #27 from Jim Jagielski <ji...@apache.org> ---
Trunk handles this differently and that code path is projected to be
backported. Can you check that trunk works for you?

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #5 from Mladen Turk <mt...@apache.org> 2012-02-03 08:47:03 UTC ---
OK, so the reason is mod_slotmem_shm

I added some debugging and the reason is that win32 calls config twice.
That cause mod_slotmem_shm to try to allocate shared storage twice, and
the second avocation fails because it already reached limit in first call.

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Zisis Lianas <zl...@consol.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zl@consol.de

--- Comment #21 from Zisis Lianas <zl...@consol.de> ---
I also stumbled across this issue today in httpd-2.4.2...

See http://www.mail-archive.com/dev%40httpd.apache.org/msg54912.html

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #25 from manny <ja...@gmail.com> ---
The nice folks over at Apache Lounge built the patched module for me (
http://www.apachelounge.com/viewtopic.php?t=4805 ) but the error persists:

[proxy_balancer:emerg] [pid 6496:tid 620] (22)Invalid argument: AH01186: worker
slotmem_grab failed

Does anything obvious appear wrong with my configuration?

<VirtualHost _default_:9000> 

  ProxyTimeout 900 
  SSLProxyEngine On 
  ProxyPreserveHost On 

  <Proxy balancer://my_cluster> 
    BalancerMember https://paz:9000 route=nA 
    BalancerMember https://baz:9000 route=nB 
    ProxySet lbmethod=byrequests stickysession=FOO_STICKY nofailover=Off 
  </Proxy> 

  ProxyPass /foo/   balancer://my_cluster/foo/ 
  Header add Set-Cookie "FOO_STICKY=s.%{BALANCER_WORKER_ROUTE}e;path=/;secure"
env=BALANCER_ROUTE_CHANGED 

</VirtualHost>

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #28 from Micha Lenk <mi...@lenk.info> ---
Jim, I haven't tested yet with trunk. But do you know which commit fixed the
issue in trunk?

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

msubbareddy <m_...@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |APIBug, ErrorMessage
           Priority|P2                          |P1
           Platform|PC                          |Other
            Version|2.4-HEAD                    |2.4.1
         OS/Version|All                         |Linux
           Severity|regression                  |blocker

--- Comment #13 from msubbareddy <m_...@hotmail.com> 2012-03-06 16:26:45 UTC ---
Unable to start the apache webserver (httpd). Getting terminated in between.
How to start the webserver?

Linux: Ubuntu 11.10 i386 x32 bit
Apache2: 2.4.1

Apache2 source got compiled and installed, when try to start, failed due to:

[proxy_balancer:emerg] [pid 2325] AH01177: Failed to lookup provider 'shm' for
'slotmem': is mod_slotmem_shm loaded??
[:emerg] [pid 2325] AH00020: Configuration Failed, exiting

Results on running: 
./httpd -S

VirtualHost configuration:
ServerRoot: "/usr/local/apache-2.4.1"
Main DocumentRoot: "/usr/local/apache-2.4.1/htdocs"
Main ErrorLog: "/usr/local/apache-2.4.1/logs/error_log"
Mutex default: dir="/usr/local/apache-2.4.1/logs" mechanism=default
Mutex mpm-accept: using_defaults
Mutex proxy-balancer-shm: using_defaults
PidFile: "/usr/local/apache-2.4.1/logs/httpd.pid"
Define: DUMP_VHOSTS
Define: DUMP_RUN_CFG
User: name="daemon" id=1
Group: name="daemon" id=1

error_log:
[proxy_balancer:emerg] [pid 2705] AH01177: Failed to lookup provider 'shm' for
'slotmem': is mod_slotmem_shm loaded??
[:emerg] [pid 2705] AH00020: Configuration Failed, exiting

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #8 from Rainer Jung <ra...@kippdata.de> 2012-02-12 18:11:02 UTC ---
(In reply to comment #7)
> Now lbmethod_bybusyness_module nor lbmethod_byrequests_module nor
> lbmethod_bytraffic_module. No issue while building.
> Without that modules I get
> 
> C:\Apache2x\bin>httpd -S
> AH00526: Syntax error on line 209 of C:/Apache2x/conf/httpd.conf:
> BalancerMember Can't find 'byrequests' lb method

It is expected, that using method "byrequests" without having
lbmethod_byrequests_module does not work.

> Than I tried to load each module single, but they don't load at all.
> 
> C:\Apache2x\bin>httpd -S
> httpd: Syntax error on line 121 of C:/Apache2x/conf/httpd.conf: Cannot load
> C:/Apache2x/mod_lbmethod_bybusyness.so into server: Das angegebene Modul wurde
> nicht gefunden.

> C:\Apache2x\bin>httpd -S
> httpd: Syntax error on line 122 of C:/Apache2x/conf/httpd.conf: Cannot load
> C:/Apache2x/mod_lbmethod_byrequests.so into server: Das angegebene Modul wurde
> nicht gefunden.
> 
> C:\Apache2x\bin>httpd -S
> httpd: Syntax error on line 123 of C:/Apache2x/conf/httpd.conf: Cannot load
> C:/Apache2x/mod_lbmethod_bytraffic.so into server: Das angegebene Modul wurde n
> icht gefunden.

Fpr non-Germans "The given module has not been found".

Mario: did you notice the strange path? Modules usually go to a "modules"
directory. It seems your httpd.conf doesn't have the LoadModule lines correct.
Can you please double check, how the LoadModule lines for those modules look
like, and whether the installed modules files actually are in the correct
directories?

Regards,

Rainer

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #22 from Zisis Lianas <zl...@consol.de> ---
Just tested the patch against my httpd-2.4.2 installation and it resolves the
issue.

Patch:
http://mail-archives.apache.org/mod_mbox/httpd-dev/201204.mbox/%3C1334306253.1695.50.camel%40florian-desktop%3E


Maybe some commiter can have a look on this?

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Christophe JAILLET <ch...@wanadoo.fr> changed:

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

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Eric Covener <co...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WORKSFORME                  |

--- Comment #16 from Eric Covener <co...@gmail.com> 2012-03-07 02:33:59 UTC ---
msubbareddy: don't hijack,much less close, existing bug reports opened by other
users.

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #2 from Graham Leggett <mi...@sharp.fm> 2012-01-01 18:34:59 UTC ---
This isn't a crash, but rather a configuration error:

[Fri Dec 30 20:55:43.004798 2011] [proxy_balancer:emerg] [pid 3632:tid 428]
(22)Invalid argument: AH01186: worker slotmem_grab failed
AH00020: Configuration Failed

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

paulzhou <pa...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |paulzhou2004@gmail.com

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #4 from Mario Brandt <JB...@gmail.com> 2012-01-17 18:53:17 UTC ---
Just saying it is a crash. The pid file still exist. Also there is a popup from
windows telling me there is a crash and there is the event log entry.

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #3 from Mladen Turk <mt...@apache.org> 2012-01-02 08:16:18 UTC ---
Hmm, I remember I once wrote experimental module that used provider logic and
it crashed on windows. Think this has to do something with dso logic and which
pool has been used. Let me see if I can find that code and see how I fixed
that. Might be this is the same cause.

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

Colin Adams <co...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |colinpauladams@gmail.com

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DO NOT REPLY [Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #11 from Mario Brandt <JB...@gmail.com> 2012-02-13 10:40:16 UTC ---
I changed 

LimitRequestFields      0
LimitRequestFieldsize    12392

But than I get 
[Mon Feb 13 11:38:37.294511 2012] [proxy_balancer:emerg] [pid 9324:tid 376]
(22)Invalid argument: AH01186: worker slotmem_grab failed
[Mon Feb 13 11:38:37.295511 2012] [:emerg] [pid 9324:tid 376] AH00020:
Configuration Failed, exiting
[Mon Feb 13 11:38:37.308512 2012] [mpm_winnt:crit] [pid 5980:tid 528] AH00419:
master_main: create child process failed. Exiting.
[Mon Feb 13 11:38:38.202563 2012] [mpm_winnt:notice] [pid 9712:tid 452]
AH00364: Child: All worker threads have exited.

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #26 from Micha Lenk <mi...@lenk.info> ---
This seems to be still present in Apache 2.4.3.
Is there any news on this issue?
What can I do to help resolving this issue?

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[Bug 52402] balancer setup crashes apache during start

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52402

--- Comment #23 from Zisis Lianas <zl...@consol.de> ---
Created attachment 28934
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=28934&action=edit
proposed patch for httpd-2.4.2

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