Mailing List Archive: Httpd using 100% cpu

Httpd using 100% cpu

Nov 6, 2021, 9:45 PM

Post #1 of 7 (760 views)

Hi ,
I am seeing that the httpd process is using 100% cpu .
Apache server is 2.4.6
below is the config i am using
<IfModule mpm_event_module>
ServerLimit 32
StartServers 6
MinSpareThreads 300
MaxSpareThreads 600
ThreadsPerChild 50
MaxRequestWorkers 1600
MaxConnectionsPerChild 0
</IfModule>

using mod_proxy module and reverse proxy to tomcat
ProxyRequests on
ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/

Need help in understanding why this is happening

Thank you

Re: Httpd using 100% cpu [ In reply to ]

deicool at gmail

Nov 7, 2021, 8:57 AM

Post #2 of 7 (760 views)

Permalink

Hi

What's the load like on the server? And the machine configuration?

On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
prasanth.kodakandla@gmail.com> wrote:

> Hi ,
> I am seeing that the httpd process is using 100% cpu .
> Apache server is 2.4.6
> below is the config i am using
> <IfModule mpm_event_module>
> ServerLimit 32
> StartServers 6
> MinSpareThreads 300
> MaxSpareThreads 600
> ThreadsPerChild 50
> MaxRequestWorkers 1600
> MaxConnectionsPerChild 0
> </IfModule>
>
> using mod_proxy module and reverse proxy to tomcat
> ProxyRequests on
> ProxyPass / http://localhost:8080/
> ProxyPassReverse / http://localhost:8080/
>
> Need help in understanding why this is happening
>
> Thank you
>
>

Re: Httpd using 100% cpu [ In reply to ]

prasanth.kodakandla at gmail

Nov 7, 2021, 9:07 AM

Post #3 of 7 (760 views)

Permalink

Hi,
load is 50req per sec
system config is 8 Core cpu with 64 GB RAM

On Sun, Nov 7, 2021, 10:57 AM Deepak Goel <deicool@gmail.com> wrote:

> Hi
>
> What's the load like on the server? And the machine configuration?
>
> On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
> prasanth.kodakandla@gmail.com> wrote:
>
>> Hi ,
>> I am seeing that the httpd process is using 100% cpu .
>> Apache server is 2.4.6
>> below is the config i am using
>> <IfModule mpm_event_module>
>> ServerLimit 32
>> StartServers 6
>> MinSpareThreads 300
>> MaxSpareThreads 600
>> ThreadsPerChild 50
>> MaxRequestWorkers 1600
>> MaxConnectionsPerChild 0
>> </IfModule>
>>
>> using mod_proxy module and reverse proxy to tomcat
>> ProxyRequests on
>> ProxyPass / http://localhost:8080/
>> ProxyPassReverse / http://localhost:8080/
>>
>> Need help in understanding why this is happening
>>
>> Thank you
>>
>>
>

Re: Httpd using 100% cpu [ In reply to ]

deicool at gmail

Nov 7, 2021, 11:37 PM

Post #4 of 7 (760 views)

Permalink

Why do you think there is a problem? The machine config is supporting 50
req/sec. Mostly the application is medium complex (If the application was
light, the machine config could have supported 200 req/sec)

On Sun, 7 Nov 2021, 22:37 Prasanth Kodakandla, <
prasanth.kodakandla@gmail.com> wrote:

> Hi,
> load is 50req per sec
> system config is 8 Core cpu with 64 GB RAM
>
>
> On Sun, Nov 7, 2021, 10:57 AM Deepak Goel <deicool@gmail.com> wrote:
>
>> Hi
>>
>> What's the load like on the server? And the machine configuration?
>>
>> On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
>> prasanth.kodakandla@gmail.com> wrote:
>>
>>> Hi ,
>>> I am seeing that the httpd process is using 100% cpu .
>>> Apache server is 2.4.6
>>> below is the config i am using
>>> <IfModule mpm_event_module>
>>> ServerLimit 32
>>> StartServers 6
>>> MinSpareThreads 300
>>> MaxSpareThreads 600
>>> ThreadsPerChild 50
>>> MaxRequestWorkers 1600
>>> MaxConnectionsPerChild 0
>>> </IfModule>
>>>
>>> using mod_proxy module and reverse proxy to tomcat
>>> ProxyRequests on
>>> ProxyPass / http://localhost:8080/
>>> ProxyPassReverse / http://localhost:8080/
>>>
>>> Need help in understanding why this is happening
>>>
>>> Thank you
>>>
>>>
>>

Re: Httpd using 100% cpu [ In reply to ]

prasanth.kodakandla at gmail

Nov 8, 2021, 5:50 AM

Post #5 of 7 (760 views)

Permalink

I am not sure about what's causing the issue. I have checked the logs and I
don't see any error messages.
need some help on what and whether to look to find and solve the problem
also want to know if i need to change anything from config.

On Mon, Nov 8, 2021 at 1:37 AM Deepak Goel <deicool@gmail.com> wrote:

> Why do you think there is a problem? The machine config is supporting 50
> req/sec. Mostly the application is medium complex (If the application was
> light, the machine config could have supported 200 req/sec)
>
> On Sun, 7 Nov 2021, 22:37 Prasanth Kodakandla, <
> prasanth.kodakandla@gmail.com> wrote:
>
>> Hi,
>> load is 50req per sec
>> system config is 8 Core cpu with 64 GB RAM
>>
>>
>> On Sun, Nov 7, 2021, 10:57 AM Deepak Goel <deicool@gmail.com> wrote:
>>
>>> Hi
>>>
>>> What's the load like on the server? And the machine configuration?
>>>
>>> On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
>>> prasanth.kodakandla@gmail.com> wrote:
>>>
>>>> Hi ,
>>>> I am seeing that the httpd process is using 100% cpu .
>>>> Apache server is 2.4.6
>>>> below is the config i am using
>>>> <IfModule mpm_event_module>
>>>> ServerLimit 32
>>>> StartServers 6
>>>> MinSpareThreads 300
>>>> MaxSpareThreads 600
>>>> ThreadsPerChild 50
>>>> MaxRequestWorkers 1600
>>>> MaxConnectionsPerChild 0
>>>> </IfModule>
>>>>
>>>> using mod_proxy module and reverse proxy to tomcat
>>>> ProxyRequests on
>>>> ProxyPass / http://localhost:8080/
>>>> ProxyPassReverse / http://localhost:8080/
>>>>
>>>> Need help in understanding why this is happening
>>>>
>>>> Thank you
>>>>
>>>>
>>>

Re: Httpd using 100% cpu [ In reply to ]

deicool at gmail

Nov 8, 2021, 6:48 AM

Post #6 of 7 (760 views)

Permalink

Is your code written in java or php (or some other language)?

You might to need an APM?

On Mon, 8 Nov 2021, 19:21 Prasanth Kodakandla, <
prasanth.kodakandla@gmail.com> wrote:

> I am not sure about what's causing the issue. I have checked the logs and
> I don't see any error messages.
> need some help on what and whether to look to find and solve the problem
> also want to know if i need to change anything from config.
>
> On Mon, Nov 8, 2021 at 1:37 AM Deepak Goel <deicool@gmail.com> wrote:
>
>> Why do you think there is a problem? The machine config is supporting 50
>> req/sec. Mostly the application is medium complex (If the application was
>> light, the machine config could have supported 200 req/sec)
>>
>> On Sun, 7 Nov 2021, 22:37 Prasanth Kodakandla, <
>> prasanth.kodakandla@gmail.com> wrote:
>>
>>> Hi,
>>> load is 50req per sec
>>> system config is 8 Core cpu with 64 GB RAM
>>>
>>>
>>> On Sun, Nov 7, 2021, 10:57 AM Deepak Goel <deicool@gmail.com> wrote:
>>>
>>>> Hi
>>>>
>>>> What's the load like on the server? And the machine configuration?
>>>>
>>>> On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
>>>> prasanth.kodakandla@gmail.com> wrote:
>>>>
>>>>> Hi ,
>>>>> I am seeing that the httpd process is using 100% cpu .
>>>>> Apache server is 2.4.6
>>>>> below is the config i am using
>>>>> <IfModule mpm_event_module>
>>>>> ServerLimit 32
>>>>> StartServers 6
>>>>> MinSpareThreads 300
>>>>> MaxSpareThreads 600
>>>>> ThreadsPerChild 50
>>>>> MaxRequestWorkers 1600
>>>>> MaxConnectionsPerChild 0
>>>>> </IfModule>
>>>>>
>>>>> using mod_proxy module and reverse proxy to tomcat
>>>>> ProxyRequests on
>>>>> ProxyPass / http://localhost:8080/
>>>>> ProxyPassReverse / http://localhost:8080/
>>>>>
>>>>> Need help in understanding why this is happening
>>>>>
>>>>> Thank you
>>>>>
>>>>>
>>>>

Re: Httpd using 100% cpu [ In reply to ]

prasanth.kodakandla at gmail

Nov 8, 2021, 7:05 AM

Post #7 of 7 (760 views)

Permalink

ya we have Dynatrace and i did not see anything suspicious in there i can
share some info here

On Mon, Nov 8, 2021 at 8:49 AM Deepak Goel <deicool@gmail.com> wrote:

> Is your code written in java or php (or some other language)?
>
> You might to need an APM?
>
> On Mon, 8 Nov 2021, 19:21 Prasanth Kodakandla, <
> prasanth.kodakandla@gmail.com> wrote:
>
>> I am not sure about what's causing the issue. I have checked the logs and
>> I don't see any error messages.
>> need some help on what and whether to look to find and solve the problem
>> also want to know if i need to change anything from config.
>>
>> On Mon, Nov 8, 2021 at 1:37 AM Deepak Goel <deicool@gmail.com> wrote:
>>
>>> Why do you think there is a problem? The machine config is supporting 50
>>> req/sec. Mostly the application is medium complex (If the application was
>>> light, the machine config could have supported 200 req/sec)
>>>
>>> On Sun, 7 Nov 2021, 22:37 Prasanth Kodakandla, <
>>> prasanth.kodakandla@gmail.com> wrote:
>>>
>>>> Hi,
>>>> load is 50req per sec
>>>> system config is 8 Core cpu with 64 GB RAM
>>>>
>>>>
>>>> On Sun, Nov 7, 2021, 10:57 AM Deepak Goel <deicool@gmail.com> wrote:
>>>>
>>>>> Hi
>>>>>
>>>>> What's the load like on the server? And the machine configuration?
>>>>>
>>>>> On Sun, 7 Nov 2021, 10:16 Prasanth Kodakandla, <
>>>>> prasanth.kodakandla@gmail.com> wrote:
>>>>>
>>>>>> Hi ,
>>>>>> I am seeing that the httpd process is using 100% cpu .
>>>>>> Apache server is 2.4.6
>>>>>> below is the config i am using
>>>>>> <IfModule mpm_event_module>
>>>>>> ServerLimit 32
>>>>>> StartServers 6
>>>>>> MinSpareThreads 300
>>>>>> MaxSpareThreads 600
>>>>>> ThreadsPerChild 50
>>>>>> MaxRequestWorkers 1600
>>>>>> MaxConnectionsPerChild 0
>>>>>> </IfModule>
>>>>>>
>>>>>> using mod_proxy module and reverse proxy to tomcat
>>>>>> ProxyRequests on
>>>>>> ProxyPass / http://localhost:8080/
>>>>>> ProxyPassReverse / http://localhost:8080/
>>>>>>
>>>>>> Need help in understanding why this is happening
>>>>>>
>>>>>> Thank you
>>>>>>
>>>>>>
>>>>>