Connection Reset

Hi all,

I'm submiting workload my web cluster using HTTPERF.
The result shows several errors about connection reset.

My doubt is, when happen connection reset ??

Ricardo

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Re: Connection Reset

ricardo13 wrote:
> Hi all,
>
> I'm submiting workload my web cluster using HTTPERF.
> The result shows several errors about connection reset.
>
> My doubt is, when happen connection reset ??
>
Can you paste the *exact* error messages that you are seeing ?



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Re: Connection Reset

The error called "connreset".
This is a example.

Total: connections 10000 requests 10000 replies 8952 test-duration 136.478 s

Connection rate: 73.3 conn/s (13.6 ms/conn, <=9387 concurrent connections)
Connection time [ms]: min 1025.6 avg 38879.9 max 134963.6 median 33947.5
stddev 23360.4
Connection time [ms]: connect 16893.1
Connection length [replies/conn]: 1.000

Request rate: 73.3 req/s (13.6 ms/req)
Request size [B]: 66.0

Reply rate [replies/s]: min 0.0 avg 66.3 max 358.8 stddev 85.5 (27 samples)
Reply time [ms]: response 10972.9 transfer 9925.2
Reply size [B]: header 176.0 content 168814.0 footer 1.0 (total 168991.0)
Reply status: 1xx=0 2xx=8944 3xx=0 4xx=0 5xx=8

CPU time [s]: user 19.45 system 117.03 (user 14.3% system 85.8% total
100.0%)
Net I/O: 10829.5 KB/s (88.7*10^6 bps)

Errors: total 1048 client-timo 0 socket-timo 0 connrefused 0 connreset 1048
Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0

Ricardo







awarnier wrote:
>
> ricardo13 wrote:
>> Hi all,
>>
>> I'm submiting workload my web cluster using HTTPERF.
>> The result shows several errors about connection reset.
>>
>> My doubt is, when happen connection reset ??
>>
> Can you paste the *exact* error messages that you are seeing ?
>
>
>
> ------------------------------------------------------------ ---------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> " from the digest: users-digest-unsubscribe@httpd.apache.org
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>
>
>

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Re: Connection Reset

--001485f6d016eef0970474d826ef
Content-Type: text/plain; charset=ISO-8859-1

Hi Ricardo,
I found when I was doing my tests with httperf, I had to use multiple
computers to do proper load testing because HTTPERF couldn't handle sending
so many simultaneous connections. Through trail and error the best results I
got was using only ~400 simultaneous requests firing from the software. Then
I multiplied that same load test over many computers.

Steve

2009/9/30 ricardo13

>
> The error called "connreset".
> This is a example.
>
> Total: connections 10000 requests 10000 replies 8952 test-duration 136.478
> s
>
> Connection rate: 73.3 conn/s (13.6 ms/conn, <=9387 concurrent connections)
> Connection time [ms]: min 1025.6 avg 38879.9 max 134963.6 median 33947.5
> stddev 23360.4
> Connection time [ms]: connect 16893.1
> Connection length [replies/conn]: 1.000
>
> Request rate: 73.3 req/s (13.6 ms/req)
> Request size [B]: 66.0
>
> Reply rate [replies/s]: min 0.0 avg 66.3 max 358.8 stddev 85.5 (27 samples)
> Reply time [ms]: response 10972.9 transfer 9925.2
> Reply size [B]: header 176.0 content 168814.0 footer 1.0 (total 168991.0)
> Reply status: 1xx=0 2xx=8944 3xx=0 4xx=0 5xx=8
>
> CPU time [s]: user 19.45 system 117.03 (user 14.3% system 85.8% total
> 100.0%)
> Net I/O: 10829.5 KB/s (88.7*10^6 bps)
>
> Errors: total 1048 client-timo 0 socket-timo 0 connrefused 0 connreset 1048
> Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
>
> Ricardo
>
>
>
>
>
>
>
> awarnier wrote:
> >
> > ricardo13 wrote:
> >> Hi all,
> >>
> >> I'm submiting workload my web cluster using HTTPERF.
> >> The result shows several errors about connection reset.
> >>
> >> My doubt is, when happen connection reset ??
> >>
> > Can you paste the *exact* error messages that you are seeing ?
> >
> >
> >
> > ------------------------------------------------------------ ---------
> > The official User-To-User support forum of the Apache HTTP Server
> Project.
> > See for more info.
> > To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> > " from the digest: users-digest-unsubscribe@httpd.apache.org
> > For additional commands, e-mail: users-help@httpd.apache.org
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Connection-Reset-tp25690236p25690360.h tml
> Sent from the Apache HTTP Server - Users mailing list archive at
> Nabble.com.
>
>
> ------------------------------------------------------------ ---------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
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>
>

--001485f6d016eef0970474d826ef
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Hi Ricardo,

Re: Connection Reset

HI Steve,

I'm using a script called AutoBench.
This software does benchmark distributed.
This is the site: http://www.xenoclast.org/autobench/

My web cluster has power servers (Quad Core, 2GB RAM) and I think that they
support that workload.
My web site is a PHP page and it does only a "loop for" until 20000.

Thank you
Ricardo


Steve-422 wrote:
>
> Hi Ricardo,
> I found when I was doing my tests with httperf, I had to use multiple
> computers to do proper load testing because HTTPERF couldn't handle
> sending
> so many simultaneous connections. Through trail and error the best results
> I
> got was using only ~400 simultaneous requests firing from the software.
> Then
> I multiplied that same load test over many computers.
>
> Steve
>
> 2009/9/30 ricardo13
>
>>
>> The error called "connreset".
>> This is a example.
>>
>> Total: connections 10000 requests 10000 replies 8952 test-duration
>> 136.478
>> s
>>
>> Connection rate: 73.3 conn/s (13.6 ms/conn, <=9387 concurrent
>> connections)
>> Connection time [ms]: min 1025.6 avg 38879.9 max 134963.6 median 33947.5
>> stddev 23360.4
>> Connection time [ms]: connect 16893.1
>> Connection length [replies/conn]: 1.000
>>
>> Request rate: 73.3 req/s (13.6 ms/req)
>> Request size [B]: 66.0
>>
>> Reply rate [replies/s]: min 0.0 avg 66.3 max 358.8 stddev 85.5 (27
>> samples)
>> Reply time [ms]: response 10972.9 transfer 9925.2
>> Reply size [B]: header 176.0 content 168814.0 footer 1.0 (total 168991.0)
>> Reply status: 1xx=0 2xx=8944 3xx=0 4xx=0 5xx=8
>>
>> CPU time [s]: user 19.45 system 117.03 (user 14.3% system 85.8% total
>> 100.0%)
>> Net I/O: 10829.5 KB/s (88.7*10^6 bps)
>>
>> Errors: total 1048 client-timo 0 socket-timo 0 connrefused 0 connreset
>> 1048
>> Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
>>
>> Ricardo
>>
>>
>>
>>
>>
>>
>>
>> awarnier wrote:
>> >
>> > ricardo13 wrote:
>> >> Hi all,
>> >>
>> >> I'm submiting workload my web cluster using HTTPERF.
>> >> The result shows several errors about connection reset.
>> >>
>> >> My doubt is, when happen connection reset ??
>> >>
>> > Can you paste the *exact* error messages that you are seeing ?
>> >
>> >
>> >
>> > ------------------------------------------------------------ ---------
>> > The official User-To-User support forum of the Apache HTTP Server
>> Project.
>> > See for more info.
>> > To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> > " from the digest: users-digest-unsubscribe@httpd.apache.org
>> > For additional commands, e-mail: users-help@httpd.apache.org
>> >
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Connection-Reset-tp25690236p25690360.h tml
>> Sent from the Apache HTTP Server - Users mailing list archive at
>> Nabble.com.
>>
>>
>> ------------------------------------------------------------ ---------
>> The official User-To-User support forum of the Apache HTTP Server
>> Project.
>> See for more info.
>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> " from the digest: users-digest-unsubscribe@httpd.apache.org
>> For additional commands, e-mail: users-help@httpd.apache.org
>>
>>
>
>

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Re: Connection Reset

Hi Steve,

How many computers did you use ??
I'm using 4 computers !!!

Ricardo



Steve-422 wrote:
>
> Hi Ricardo,
> I found when I was doing my tests with httperf, I had to use multiple
> computers to do proper load testing because HTTPERF couldn't handle
> sending
> so many simultaneous connections. Through trail and error the best results
> I
> got was using only ~400 simultaneous requests firing from the software.
> Then
> I multiplied that same load test over many computers.
>
> Steve
>
> 2009/9/30 ricardo13
>
>>
>> The error called "connreset".
>> This is a example.
>>
>> Total: connections 10000 requests 10000 replies 8952 test-duration
>> 136.478
>> s
>>
>> Connection rate: 73.3 conn/s (13.6 ms/conn, <=9387 concurrent
>> connections)
>> Connection time [ms]: min 1025.6 avg 38879.9 max 134963.6 median 33947.5
>> stddev 23360.4
>> Connection time [ms]: connect 16893.1
>> Connection length [replies/conn]: 1.000
>>
>> Request rate: 73.3 req/s (13.6 ms/req)
>> Request size [B]: 66.0
>>
>> Reply rate [replies/s]: min 0.0 avg 66.3 max 358.8 stddev 85.5 (27
>> samples)
>> Reply time [ms]: response 10972.9 transfer 9925.2
>> Reply size [B]: header 176.0 content 168814.0 footer 1.0 (total 168991.0)
>> Reply status: 1xx=0 2xx=8944 3xx=0 4xx=0 5xx=8
>>
>> CPU time [s]: user 19.45 system 117.03 (user 14.3% system 85.8% total
>> 100.0%)
>> Net I/O: 10829.5 KB/s (88.7*10^6 bps)
>>
>> Errors: total 1048 client-timo 0 socket-timo 0 connrefused 0 connreset
>> 1048
>> Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
>>
>> Ricardo
>>
>>
>>
>>
>>
>>
>>
>> awarnier wrote:
>> >
>> > ricardo13 wrote:
>> >> Hi all,
>> >>
>> >> I'm submiting workload my web cluster using HTTPERF.
>> >> The result shows several errors about connection reset.
>> >>
>> >> My doubt is, when happen connection reset ??
>> >>
>> > Can you paste the *exact* error messages that you are seeing ?
>> >
>> >
>> >
>> > ------------------------------------------------------------ ---------
>> > The official User-To-User support forum of the Apache HTTP Server
>> Project.
>> > See for more info.
>> > To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> > " from the digest: users-digest-unsubscribe@httpd.apache.org
>> > For additional commands, e-mail: users-help@httpd.apache.org
>> >
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Connection-Reset-tp25690236p25690360.h tml
>> Sent from the Apache HTTP Server - Users mailing list archive at
>> Nabble.com.
>>
>>
>> ------------------------------------------------------------ ---------
>> The official User-To-User support forum of the Apache HTTP Server
>> Project.
>> See for more info.
>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> " from the digest: users-digest-unsubscribe@httpd.apache.org
>> For additional commands, e-mail: users-help@httpd.apache.org
>>
>>
>
>

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Re: Connection Reset

--000e0ce0267640f4900479de21b3
Content-Type: text/plain; charset=ISO-8859-1

Hi Ricardo,

I used 10 computers.

Steve

2009/10/15 ricardo13

>
> Hi Steve,
>
> How many computers did you use ??
> I'm using 4 computers !!!
>
> Ricardo
>
>
>
> Steve-422 wrote:
> >
> > Hi Ricardo,
> > I found when I was doing my tests with httperf, I had to use multiple
> > computers to do proper load testing because HTTPERF couldn't handle
> > sending
> > so many simultaneous connections. Through trail and error the best
> results
> > I
> > got was using only ~400 simultaneous requests firing from the software.
> > Then
> > I multiplied that same load test over many computers.
> >
> > Steve
> >
> > 2009/9/30 ricardo13
> >
> >>
> >> The error called "connreset".
> >> This is a example.
> >>
> >> Total: connections 10000 requests 10000 replies 8952 test-duration
> >> 136.478
> >> s
> >>
> >> Connection rate: 73.3 conn/s (13.6 ms/conn, <=9387 concurrent
> >> connections)
> >> Connection time [ms]: min 1025.6 avg 38879.9 max 134963.6 median 33947.5
> >> stddev 23360.4
> >> Connection time [ms]: connect 16893.1
> >> Connection length [replies/conn]: 1.000
> >>
> >> Request rate: 73.3 req/s (13.6 ms/req)
> >> Request size [B]: 66.0
> >>
> >> Reply rate [replies/s]: min 0.0 avg 66.3 max 358.8 stddev 85.5 (27
> >> samples)
> >> Reply time [ms]: response 10972.9 transfer 9925.2
> >> Reply size [B]: header 176.0 content 168814.0 footer 1.0 (total
> 168991.0)
> >> Reply status: 1xx=0 2xx=8944 3xx=0 4xx=0 5xx=8
> >>
> >> CPU time [s]: user 19.45 system 117.03 (user 14.3% system 85.8% total
> >> 100.0%)
> >> Net I/O: 10829.5 KB/s (88.7*10^6 bps)
> >>
> >> Errors: total 1048 client-timo 0 socket-timo 0 connrefused 0 connreset
> >> 1048
> >> Errors: fd-unavail 0 addrunavail 0 ftab-full 0 other 0
> >>
> >> Ricardo
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> awarnier wrote:
> >> >
> >> > ricardo13 wrote:
> >> >> Hi all,
> >> >>
> >> >> I'm submiting workload my web cluster using HTTPERF.
> >> >> The result shows several errors about connection reset.
> >> >>
> >> >> My doubt is, when happen connection reset ??
> >> >>
> >> > Can you paste the *exact* error messages that you are seeing ?
> >> >
> >> >
> >> >
> >> > ------------------------------------------------------------ ---------
> >> > The official User-To-User support forum of the Apache HTTP Server
> >> Project.
> >> > See for more info.
> >> > To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >> > " from the digest: users-digest-unsubscribe@httpd.apache.org
> >> > For additional commands, e-mail: users-help@httpd.apache.org
> >> >
> >> >
> >> >
> >>
> >> --
> >> View this message in context:
> >> http://www.nabble.com/Connection-Reset-tp25690236p25690360.h tml
> >> Sent from the Apache HTTP Server - Users mailing list archive at
> >> Nabble.com.
> >>
> >>
> >> ------------------------------------------------------------ ---------
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> >> Project.
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> >>
> >>
> >
> >
>
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>
>
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Hi Ricardo,