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Posted to dev@httpd.apache.org by Jordi Prats <jo...@gmail.com> on 2008/09/08 14:31:31 UTC
Re: mod_status slots
Hi all,
There's any way to formally propose this littler change to mod_status?
Jordi
On Mon, Aug 11, 2008 at 9:57 AM, Jordi Prats <jo...@gmail.com> wrote:
> On Fri, Aug 8, 2008 at 7:04 PM, William A. Rowe, Jr.
> <wr...@rowe-clan.net> wrote:
>> Jordi Prats wrote:
>>>
>>> I don't know about other implications of changing this line. I've just
>>> tested it using prefork both restarting and reloading apache. What do
>>> you think about this little change?
>>
>> How's your proposed patch interact with a server using slots 1-16, 128-136
>> when they gracefully restart the server with a lower number of maxclients?
>>
>
> It works fine. For example:
>
> Using:
>
> MaxClients 15
> ServerLimit 15
>
> Using ab like this:
>
> while true; do /usr/local/apache2/bin/ab -c 14 -n 5000
> http://127.0.0.1/server-status; done
>
> I get:
>
> slots: 15 CCCCCCCCCCCCCWC
>
> Then I gracefully restart apache using:
>
> MaxClients 5
> ServerLimit 15
>
> Then I get:
>
> slots: 5 WWCCR
>
> regards
>
> --
> Jordi
>
--
Jordi
Re: mod_status slots
Posted by "William A. Rowe, Jr." <wr...@rowe-clan.net>.
Jordi Prats wrote:
> How can I test that? I've repeated this test succesfully like this:
That looks great, thanks for confirming!
Re: mod_status slots
Posted by Jordi Prats <jo...@gmail.com>.
How can I test that? I've repeated this test succesfully like this:
first shell:
I perform continuous ab test like this:
while true; do /usr/local/apache2/bin/ab -c 14 -n 5000
http://127.0.0.1/server-status; done
second shell:
I store the ScoreBoard to a file:
while true; do wget http://10.12.80.1/server-status?auto -O -
2>/dev/null| grep Scoreboard >> /tmp/foo; done
third shell:
I do a graceful with two echos (before and after) using this command:
echo "before graceful" >> /tmp/foo; /usr/local/apache2/bin/apachectl
graceful; echo "after graceful" >> /tmp/foo;
Then, on /tmp/foo you can find something like this:
Scoreboard: WCCCCWCCCCCWCCC
Scoreboard: _CC_CCCWCCCCCCC
Scoreboard: CCCCCCCC_CCWCCC
Scoreboard: WCCCCCC_C_CCC_C
Scoreboard: CCCCCCCCCCCCCCW
Scoreboard: CCCCCCCCC_CCW__
Scoreboard: CCCCCWCCCCCCCCC
Scoreboard: CCCCCCCCCCCW_CC
Scoreboard: __CCC_CCWCCCCCC
Scoreboard: CCCCCCCWCCCCC__
Scoreboard: CCW__C_CCC__WC_
Scoreboard: C_CCCCCC_CCCWCC
Scoreboard: CC_CCCC_C_CCCWC
Scoreboard: CCCCWCCCCCCCCCC
before graceful
Scoreboard: ___CW_CW_CCCC_C
Scoreboard: __WCCRCC_CCCCCC
Scoreboard: __CCC_C_C_CWCCC
Scoreboard: CC_CCCWCCC_CCCC
Scoreboard: CCCCCC__CWCCWCC
after graceful
Scoreboard: WGGCC
Scoreboard: RCCWC
Scoreboard: WCCWC
Scoreboard: WWCCC
Scoreboard: CCWCW
Scoreboard: CWCCC
Scoreboard: CCCWC
Scoreboard: CCCWW
Scoreboard: CWCCC
On Mon, Sep 8, 2008 at 6:00 PM, William A. Rowe, Jr.
<wr...@rowe-clan.net> wrote:
> Jordi Prats wrote:
>>
>> Hi all,
>> There's any way to formally propose this littler change to mod_status?
>>
>> Jordi
>>
>> On Mon, Aug 11, 2008 at 9:57 AM, Jordi Prats <jo...@gmail.com>
>> wrote:
>>>
>>> On Fri, Aug 8, 2008 at 7:04 PM, William A. Rowe, Jr.
>>> <wr...@rowe-clan.net> wrote:
>>>>
>>>> Jordi Prats wrote:
>>>>>
>>>>> I don't know about other implications of changing this line. I've just
>>>>> tested it using prefork both restarting and reloading apache. What do
>>>>> you think about this little change?
>>>>
>>>> How's your proposed patch interact with a server using slots 1-16,
>>>> 128-136
>>>> when they gracefully restart the server with a lower number of
>>>> maxclients?
>>>>
>>> It works fine. For example:
>>>
>>> Using:
>>>
>>> MaxClients 15
>>> ServerLimit 15
>>>
>>> Using ab like this:
>>>
>>> while true; do /usr/local/apache2/bin/ab -c 14 -n 5000
>>> http://127.0.0.1/server-status; done
>>>
>>> I get:
>>>
>>> slots: 15 CCCCCCCCCCCCCWC
>>>
>>> Then I gracefully restart apache using:
>>>
>>> MaxClients 5
>>> ServerLimit 15
>>>
>>> Then I get:
>>>
>>> slots: 5 WWCCR
>
> I'm asking, if those workers are spread across clients. I'm not altogether
> clear if those were reaped, or if they just happened to line up.
>
--
Jordi
Re: mod_status slots
Posted by "William A. Rowe, Jr." <wr...@rowe-clan.net>.
Jordi Prats wrote:
> Hi all,
> There's any way to formally propose this littler change to mod_status?
>
> Jordi
>
> On Mon, Aug 11, 2008 at 9:57 AM, Jordi Prats <jo...@gmail.com> wrote:
>> On Fri, Aug 8, 2008 at 7:04 PM, William A. Rowe, Jr.
>> <wr...@rowe-clan.net> wrote:
>>> Jordi Prats wrote:
>>>> I don't know about other implications of changing this line. I've just
>>>> tested it using prefork both restarting and reloading apache. What do
>>>> you think about this little change?
>>> How's your proposed patch interact with a server using slots 1-16, 128-136
>>> when they gracefully restart the server with a lower number of maxclients?
>>>
>> It works fine. For example:
>>
>> Using:
>>
>> MaxClients 15
>> ServerLimit 15
>>
>> Using ab like this:
>>
>> while true; do /usr/local/apache2/bin/ab -c 14 -n 5000
>> http://127.0.0.1/server-status; done
>>
>> I get:
>>
>> slots: 15 CCCCCCCCCCCCCWC
>>
>> Then I gracefully restart apache using:
>>
>> MaxClients 5
>> ServerLimit 15
>>
>> Then I get:
>>
>> slots: 5 WWCCR
I'm asking, if those workers are spread across clients. I'm not altogether
clear if those were reaped, or if they just happened to line up.