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Posted to bugs@httpd.apache.org by bu...@apache.org on 2015/06/11 15:49:40 UTC
[Bug 58024] New: (Graceful) Restart does not work after adding a
BalancerMember
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Bug ID: 58024
Summary: (Graceful) Restart does not work after adding a
BalancerMember
Product: Apache httpd-2
Version: 2.4.12
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: mod_proxy_balancer
Assignee: bugs@httpd.apache.org
Reporter: dnie@d-velop.de
Created attachment 32808
--> https://bz.apache.org/bugzilla/attachment.cgi?id=32808&action=edit
httpd.conf
I am using Apache 2.4.12 on Windows (details below)
I am using mod_proxy and mod_proxy_balancer and sometimes I have to add or
remove BalancerMember at runtime (without a downtime).
But I have an issue when (graceful) restarting the Apache after I had modified
the Proxy/BalancerMember configuration. The Apache will shutdown with error
AH02599 (error.log below)
When just stopping and then starting the Apache, everything works properly.
This scenario completely works properly when using Apache 2.2.27
Some Details:
=============
OS: Windows 7 64Bit
Apache downloaded from http://www.apachelounge.com/download/VC11/ ==>
httpd-2.4.12-win64-VC11.zip
Restart-Command: httpd -k restart -n Apache
error.log:
==========
The 'Apache' service is restarting.
Failed to restart the 'Apache' service.
ice] [pid 13636:tid 552] AH00424: Parent: Received restart signal --
Restarting the server.
[Thu Jun 11 14:41:18.545804 2015] [slotmem_shm:error] [pid 13636:tid 552]
AH02599: existing shared memory for
C:/test/apache/logs/slotmem-shm-p7bd87614_lb2.shm could not be used (failed
size check)
[Thu Jun 11 14:41:18.545804 2015] [proxy_balancer:emerg] [pid 13636:tid 552]
(22)Invalid argument: AH01185: worker slotmem_create failed
[Thu Jun 11 14:41:18.545804 2015] [:emerg] [pid 13636:tid 552] AH00020:
Configuration Failed, exiting
[Thu Jun 11 14:41:20.536003 2015] [mpm_winnt:notice] [pid 12032:tid 488]
AH00364: Child: All worker threads have exited.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
dnie@d-velop.de changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|mod_proxy_balancer |mod_proxy
OS| |All
--- Comment #1 from dnie@d-velop.de ---
Here is a more simple "steps to reproduce"
1. Download Apache from http://www.apachelounge.com/download/VC11/
httpd-2.4.12-win64-VC11.zip
2. Unpack it to C:\Apache24
3. Be sure that you have installed Visual C++ Redistributable for Visual Studio
2012 (==> msvcr110.dll). Maybe download
http://www.microsoft.com/en-us/download/details.aspx?id=30679
4. Open Terminal as Admin and install the service and start Apache using:
cd C:\Apache24\bin
httpd.exe -k install -d C:\Apache24
httpd.exe -k start
5. Restart is working now:
httpd.exe -k restart
6. Add the following lines to the end of httpd.conf:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
<Proxy balancer://lb1>
BalancerMember http://127.0.0.1:8080
#BalancerMember http://127.0.0.2:8080
</Proxy>
<Location /myWebapp>
ProxyPass balancer://lb1/myWebapp
ProxyPassReverse balancer://lb1/myWebapp
</Location>
5. Restart is still working
httpd.exe -k restart
6. Uncomment the second BalancerMember http://127.0.0.2:8080
7. Restart is "crashing" now
httpd.exe -k restart
error.log:
The 'Apache24' service is restarting.
Failed to restart the 'Apache24' service.
nt:notice] [pid 2564:tid 492] AH00424: Parent: Received restart signal --
Restarting the server.
[Thu Jun 18 11:19:15.350509 2015] [slotmem_shm:error] [pid 2564:tid 492]
AH02599: existing shared memory for
C:/Apache24/logs/slotmem-shm-pac00a502_lb1.shm could not be used (failed size
check)
[Thu Jun 18 11:19:15.350509 2015] [proxy_balancer:emerg] [pid 2564:tid 492]
(22)Invalid argument: AH01185: worker slotmem_create failed
[Thu Jun 18 11:19:15.350509 2015] [:emerg] [pid 2564:tid 492] AH00020:
Configuration Failed, exiting
[Thu Jun 18 11:19:17.341708 2015] [mpm_winnt:notice] [pid 1976:tid 476]
AH00364: Child: All worker threads have exited.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #6 from Christophe JAILLET <ch...@wanadoo.fr> ---
Hi,
apparently, a similar issue has been reported in
http://marc.info/?l=apache-httpd-dev&m=133430638626492
Could you please try the proposed patch and report if it helps ?
Code has changed slighly in this area since 2.4.2, but looking at
APLOGNO(01186) in the code, you should find where to apply the patch.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #16 from Yann Ylavic <yl...@gmail.com> ---
Thanks for testing (unfortunately I have no Windows machine to test this, and
that's no reproductible on linux).
Could your "dnie log" include the return values from apr_shm_destroy(),
apr_shm_remove() and apr_file_remove() called in cleanup_slotmem()?
The SHM (underlying) file seems not be deleted here since it is attached after
restart...
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #25 from dnie@d-velop.de ---
Stresstest looks good.
Intil now, it made about 270 restarts with many random configuration changes.
Apache is still up an running and fully functional.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #7 from Mario <JB...@gmail.com> ---
We had once a simular bug
https://bz.apache.org/bugzilla/show_bug.cgi?id=52402
However: Can you try to start apache not as the service but from a cmd.exe
which you started as Adminstrator? For me the shared memory works only if I
start the process as Administrator.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #15 from dnie@d-velop.de ---
Created attachment 33055
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33055&action=edit
error.log after patching mod_slotmem_shm
I reverted my mod_proxy_balancer to the original version and applied the new
patch to mod_slotmem_shm
Now I get the AH02599 which results in AH00020.
I attached my error.log. (LogLevel debug)
In that log you also will find my own custom logline in line 249 with text
"dnie". That line is the line before the (just moved) apr_shm_destroy.
Here my configuration when created the error.log:
<Proxy balancer://lb2>
ProxySet growth=5
# BalancerMember http://servera:8080
BalancerMember http://serverb:8080
BalancerMember http://serverc:8080
</Proxy>
<Location /myWebapp2>
ProxyPass balancer://lb2/myWebapp
ProxyPassReverse balancer://lb2/myWebapp
</Location>
I started Apache with this config and restarted with the additional "servera".
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #33106|0 |1
is obsolete| |
--- Comment #28 from Yann Ylavic <yl...@gmail.com> ---
Created attachment 33109
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33109&action=edit
mod_slotmem_shm and mpm_winnt (children) with generation number (2.4.x)
Patch updated to match proposed backport to 2.4.x (r1703205).
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #33052|0 |1
is obsolete| |
--- Comment #21 from Yann Ylavic <yl...@gmail.com> ---
Created attachment 33106
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33106&action=edit
mod_slotmem_shm and mpm_winnt (children) with generation number (2.4.x)
(In reply to Yann Ylavic from comment #20)
>
> Does new commit r1702501 help?
Probably not, AP_MPMQ_GENERATION isn't relevant either in the child process, at
least until child_init() (i.e. after all the pre/post_config() stage, which
mpm_winnt runs for each child too...).
Hence I think we need to make the generation number available earlier in
mpm_winnt's children, so that it can be used at config stage (by any module).
The attached patch (against 2.4.x) includes all the mod_slotmem_shm changes so
far, plus the mpm_winnt changes to make AP_MPMQ_GENERATION work in children.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |FixedInTrunk
--- Comment #12 from Yann Ylavic <yl...@gmail.com> ---
Thanks for testing, committed in r1696960 and backport proposed to 2.4.x.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #26 from Yann Ylavic <yl...@gmail.com> ---
Do you still observe the filesystem leaks?
If yes, did you also apply attachment 33052?
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #24 from Yann Ylavic <yl...@gmail.com> ---
(In reply to dnie from comment #23)
>
> In my manual test I get many shm files in my log folder. Once per restart
> and balancer and proxy. They will not deleted.
This is unfortunate, DeleteFile() is documented in MSDN with:
"The DeleteFile function marks a file for deletion on close. Therefore, the
file deletion does not occur until the last handle to the file is closed."
I read this "does not occur until the last handle is closed" as "occurs only
when the last handle is closed", but I must be naive, since:
"The DeleteFile function fails if an application attempts to delete a file that
has other handles open for normal I/O or as a memory-mapped file
(FILE_SHARE_DELETE must have been specified when other handles were opened)."
which seems to indicate that it fails for memory-mapped files *even if*
FILE_SHARE_DELETE was used (i.e. FILE_SHARE_DELETE helps only for "other
handles opened" but not for memory-mapped files)...
If that's the case, it quite complicates things since we have to address the
filesystem leak too.
Let me talk about this on the dev@ mailing list for Windows gurus to help me
out (FILE_FLAG_DELETE_ON_CLOSE? that would require our own slotmem_shm_create()
for Windows specifics).
Anyway, the debug traces (with your personal logs in slotmem_cleanup about
destroy/remove returned values) could help here to confirm what happens at
deletion time.
Also, these traces with and without attachment 33052 applied could possibly
help.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #9 from dnie@d-velop.de ---
The patch from Christophe does not make any changes in my case. It crashes
every time when not using the pach from Yann (Comment 3)
I think that issue from Comment 6 is not related to this.
But, now figured out my "random cases" from Comment 5:
All BalancerMember that are active at initial startup can be removed and
re-added at runtime. But adding completely new BalancerMember causes the
AH01186.
Here one example (I used the patch from Yann for this):
Initail config:
<Proxy balancer://lb2>
BalancerMember http://servera:8080
BalancerMember http://serverb:8080
#BalancerMember http://serverc:8080
</Proxy>
Now start Apache (Initial start, not restart)
Now remove "serverb":
<Proxy balancer://lb2>
BalancerMember http://servera:8080
#BalancerMember http://serverb:8080
#BalancerMember http://serverc:8080
</Proxy>
Now restart Apache ==> OK
Now remove "servera" and re-add "serverb":
<Proxy balancer://lb2>
#BalancerMember http://servera:8080
BalancerMember http://serverb:8080
#BalancerMember http://serverc:8080
</Proxy>
Now restart Apache ==> OK
Now add "serverc" (which was never active since initial start)
<Proxy balancer://lb2>
#BalancerMember http://servera:8080
BalancerMember http://serverb:8080
BalancerMember http://serverc:8080
</Proxy>
Restart Apache ==> ERROR AH01186
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #19 from dnie@d-velop.de ---
Created attachment 33097
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33097&action=edit
The error.log with start and restart
I took the whole file mod_slotmem_shm.c from r1702450 and replaced my Version
with it. I also updated my working copy to the latest revision 1702312 from
2.4.x
I have a clean working copy except this one file.
For some reason I also needed to add the following line to get this compiled:
#include "http_core.h"
But this does not work. I made the same test as before and I get a AH02599.
Maybe I did somethin wrong or this fix doesn't work. Can you see what went
wrong? I attached the error log again.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Mario <JB...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |JBlond@gmail.com
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #27 from dnie@d-velop.de ---
(In reply to Yann Ylavic from comment #26)
> Do you still observe the filesystem leaks?
> If yes, did you also apply attachment 33052 [details]?
With patch from attachment 33052, all shm files are deleted correctly.
So, I think this issue is fixed.
Thanks!
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ylavic.dev@gmail.com
--- Comment #3 from Yann Ylavic <yl...@gmail.com> ---
Created attachment 32836
--> https://bz.apache.org/bugzilla/attachment.cgi?id=32836&action=edit
Before creating, try to reuse stored balancers/workers with enough space
Can you please try this patch (against 2.4.x) and see if it solves your issue?
The goal is to be less strict about slots reuse when the growth margin allows
to restart with more balancers/workers.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #23 from dnie@d-velop.de ---
The Patch from Comment 21 seems to work
But I had to add the Line
DWORD BytesRead = 0;
in winnt_rewrite_args in mpm_winnt.c(1048) to get this compiled.
Now I will do some (automated) stresstest on my compiled version and post the
result later on...
In my manual test I get many shm files in my log folder. Once per restart and
balancer and proxy. They will not deleted. Is there a way to delete them
automatcally. They seem to be unused. I am able to manually delete the previous
ones (with Windows Explorer).
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #8 from Mario <JB...@gmail.com> ---
I forgot to mention that you can restart apache by hitting CRTL + break. In
your cause it is I guess Strg + Pause.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Graham Leggett <mi...@sharp.fm> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #29 from Graham Leggett <mi...@sharp.fm> ---
Patch backported to v2.4.17.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #10 from Yann Ylavic <yl...@gmail.com> ---
(In reply to dnie from comment #9)
>
> Now add "serverc" (which was never active since initial start)
> <Proxy balancer://lb2>
> #BalancerMember http://servera:8080
> BalancerMember http://serverb:8080
> BalancerMember http://serverc:8080
> </Proxy>
>
> Restart Apache ==> ERROR AH01186
Can you try to add the following directive in the <Proxy balancer://lb2> block:
ProxySet growth 5
?
By default the growth margin is zero for the balancer members, so in your
scenario there may be no room for adding a new one.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #18 from Yann Ylavic <yl...@gmail.com> ---
A new fix was committed on trunk in r1702450 (applies to 2.4.x too).
On Windows, it uses a different file name for each SHM created on restart,
since the old file may still be in use by the old children (gracefully)
shutting down, which prevents their removal.
This version allows to work with a clear SHM on restart (fitting the new
configuration, should any balancer/member be added), and hence avoids the use
of the balancer's growth parameter for configuration changes (these are meant
for dynamic changes via the balancer manager only).
Could you test this new fix (the other patches proposed so far are not needed)?
It would be particularly interesting to look at the the SHM files (created in
the [ServerRoot]/logs directory by default) to see if they are cleanly removed
on restart, i.e. as soon as the old children stop (a generation number is used
in the file names, and there shouldn't be any SHM file from the previous
generation once the corresponding children have stopped).
Thanks.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
dnie@d-velop.de changed:
What |Removed |Added
----------------------------------------------------------------------------
OS|All |Windows 7
--- Comment #2 from dnie@d-velop.de ---
This morning, I tested Apache 2.4.10 on a clean Debian 8.1 and this scenario
worked with a "graceful" restart without any issue. So it is maybe a
Windows-only-problem.
I also tested the "BalancerPersist On|Off" switch on Debian and Windows
- On Windows, there was no effect at all.
- On Debian there was a difference: Both "On" and "Off" seemed to work, but
"On" causes the message "AH02551: bad md5 match" in the error.log
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #5 from dnie@d-velop.de ---
Now I am able to compile the mod_proxy_balancer.so with Visual Studio and run
the compiled version within the existing Apache installation by replacing this
one file.
I applied the SVN patch and tested the behaviour:
Adding and removing BalancerMember is working in most cases. But in some random
cases I get the following error:
[Wed Jun 24 14:27:13.324773 2015] [proxy_balancer:emerg] [pid 14172:tid 600]
(22)Invalid argument: AH01186: worker slotmem_grab failed
[Wed Jun 24 14:27:13.324773 2015] [:emerg] [pid 14172:tid 600] AH00020:
Configuration Failed, exiting
[Wed Jun 24 14:27:15.298971 2015] [mpm_winnt:notice] [pid 10256:tid 532]
AH00364: Child: All worker threads have exited.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #32836|0 |1
is obsolete| |
--- Comment #14 from Yann Ylavic <yl...@gmail.com> ---
Created attachment 33052
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33052&action=edit
Fix slotmem destroy on Windows
After some discussion on the dev@ mailing-list, attachment 32836 is not the
correct fix.
The shared slots used to store the balancers/members are destroyed and
recreated at each (re)startuo, based on the size needed by the current
configuration.
So there shouldn't be an error when some balancers/members are added, even when
no growth margin is used (growth margins are useful only for dynamic
configuration via the balancer manager insterface).
Hence the slots are not persistent by default on restart, the balancers start
from the initial state each time, unless "BalancerPersist on" is configured and
the configuration (number of balancers/members, parameters...) is the same.
This new patch fixes the order used to destroy a slot since, on Windows at
least, it must be detached *before* the underlying file is removed, otherwise
it is reused on restart and the size check fails whenever a balancer/member is
added.
Could you please try it?
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #17 from dnie@d-velop.de ---
Created attachment 33056
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33056&action=edit
error.log with more details
Same test as before, but I have added some more Loglines in cleanup_slotmem
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
Christian Kütbach <ck...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ckuetbach@gmail.com
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #22 from dnie@d-velop.de ---
Created attachment 33107
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33107&action=edit
error.log with r1702501
I used the commit r1702501 for mod_slotmem_shm.c. The shm filenames are a
little bit diffrent. But I get the AH02599 as before.
I attache the new log again. I also provided some additional information within
the log.
I made two test:
1. The first is adding a BalancerMember (same test as the last ones).
2. The second is removing a BalancerMamber. This also causes AH02599.
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
dnie@d-velop.de changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |Windows 7
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
dnie@d-velop.de changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |Windows 7
CC| |dnie@d-velop.de
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #20 from Yann Ylavic <yl...@gmail.com> ---
Thanks for testing.
Does new commit r1702501 help?
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #11 from dnie@d-velop.de ---
This works!
The ProxySet growth=5 fixes the AH01186.
Now, everything works with my compiled version of mod_proxy_balancer.so (with
Patch from Comment 3 against 2.4.x)
I will do stresstest in my testenvironment. This will take a while. I will post
the result of this test in a couple of days.
Thanks!
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
dnie@d-velop.de changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |All
--- Comment #4 from dnie@d-velop.de ---
I was not able to get that changes running.
Until now, I got the mod_proxy_balancer.so compiled by Visual Studio 2012 under
Windows 7. (Only this file. Not the whole Project)
The Apache does (not) start with Error:
"httpd.exe: Syntax error on line 532 of C:/Apache24/conf/httpd.conf: Cannot
load modules/mod_proxy_balancer.so into server: The Specified Procedure Could
not be Found."
(message translated from german to english)
I have no idea what the problem could be. (I am not a C-Developer)
Are there any other options to get the code compiled for Windows?
Is there any commandline option for httpd to get more information about the
"Procedure" that could not be found?
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[Bug 58024] (Graceful) Restart does not work after adding a
BalancerMember
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=58024
--- Comment #13 from dnie@d-velop.de ---
My stresstest succeded. So it is fixed (with my patched version and growth=x).
But there is one condition:
The number of unique BalancerMember must not exceed the count of initial
BalancerMember at startup plus the value of "growth"
What are the consequences when using higher growth? In my case, I am not able
to know the maximum count of possible BalancerMembers.
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