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Re: Session being created continuously...
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Re: Session being created continuously...

  • Subject: Re: Session being created continuously...
  • From: Anjo Krank <email@hidden>
  • Date: Fri, 29 Jan 2010 00:29:04 +0100
A session isn't all that much. It mostly contains an EC, some pointers and the (limited) stack of pages.

It's only when you have a bunch of EOs in the session EC that they get heavy.

Try it: make an empty app, override Session() to include a counter, use "ab" with ab -c 5 -n 5000000 and check when you get an OOM.

Cheers, Anjo



Am 28.01.2010 um 23:46 schrieb Amedeo Mantica:

> I agree with you, but is not easy to avoid
> Amedeo
>
> On 28/gen/2010, at 23.23, Miguel Arroz wrote:
>
>> Hi!
>>
>> BTW, just an advice: it may be a good idea to not create a session every time someone opens your app front page. This can be a hole to a very simple DoS.
>>
>> Yours
>>
>> Miguel Arroz
>>
>> On 2010/01/28, at 20:37, Amedeo Mantica wrote:
>>
>>> btw, thank you all for the support
>>>
>>> On 28/gen/2010, at 21.30, Amedeo Mantica wrote:
>>>
>>>> Comparing these timestamps with apache logs seems that ip addresses are of google bots
>>>>
>>>> now i don't know why my woapp see the self server ip address.
>>>>
>>>> Amedeo
>>>>
>>>>
>>>> Jan 28 21:07:31 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>> Jan 28 21:07:43 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - .
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Session Invoked. ID = snScYHezfXZ2YCIq4vZVt0
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser = robot
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser platform = Unknown Platform
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser user info = {cpu = "Unknown CPU"; geckoRevision = "No Gecko"; }
>>>> Jan 28 21:07:43 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>> Jan 28 21:07:53 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - .
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Session Invoked. ID = qrsn4ipZzHYH7lZF2JXgyw
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser = robot
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser platform = Unknown Platform
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser user info = {cpu = "Unknown CPU"; geckoRevision = "No Gecko"; }
>>>> Jan 28 21:07:53 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>> Jan 28 21:07:55 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - .
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Session Invoked. ID = 9BRZmo11a3Z70bzbALCFyg
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser = robot
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser platform = Unknown Platform
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser user info = {cpu = "Unknown CPU"; geckoRevision = "No Gecko"; }
>>>> Jan 28 21:07:55 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>> Jan 28 21:08:06 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>> Jan 28 21:08:06 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - .
>>>> Jan 28 21:08:06 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Session Invoked. ID = SO1NEan3slUhY8s7RX0BLM
>>>> Jan 28 21:08:06 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser = robot
>>>> Jan 28 21:08:06 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser platform = Unknown Platform
>>>> Jan 28 21:08:06 confindustria[2013] DEBUG er.extensions.appserver.ERXSession  - Browser user info = {cpu = "Unknown CPU"; geckoRevision = "No Gecko"; }
>>>>
>>>>
>>>> On 28/gen/2010, at 20.58, David Avendasora wrote:
>>>>
>>>>> Spotlight?
>>>>>
>>>>> On Jan 28, 2010, at 2:42 PM, Amedeo Mantica wrote:
>>>>>
>>>>>> I think too, but xx.xx.xx.xx is my server ip address !!
>>>>>>
>>>>>> On 28/gen/2010, at 20.37, Chuck Hill wrote:
>>>>>>
>>>>>>>> Jan 28 19:47:12 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>
>>>>>>> I'd guess that something is indexing your site.
>>>>>>>
>>>>>>> Chuck
>>>>>>>
>>>>>>>
>>>>>>> On Jan 28, 2010, at 11:35 AM, Amedeo Mantica wrote:
>>>>>>>
>>>>>>>> Jan 28 19:47:03 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:12 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:12 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:12 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:20 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:20 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:20 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:27 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:27 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:27 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:33 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:33 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:33 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:39 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:39 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:39 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:47:51 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:47:51 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:47:51 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:48:03 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:48:03 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:48:03 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:48:15 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:48:15 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:48:15 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:48:26 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:48:26 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>> Jan 28 19:48:26 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Remote IP Address = xx.xx.xx.xx
>>>>>>>> Jan 28 19:48:38 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - New Session
>>>>>>>> Jan 28 19:48:38 confindustria[2013] INFO  er.extensions.appserver.ERXSession  - Browser = robot
>>>>>>>>
>>>>>>>>
>>>>>>>> NOTE xx.xx.xx.xx is alway the same ip address and is the my webserver ip !!
>>>>>>>>
>>>>>>>> What's up?
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>> Amedeo _______________________________________________
>>>>>>>> Do not post admin requests to the list. They will be ignored.
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>>>>>>>>
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>>>>>>>
>>>>>>> --
>>>>>>> Chuck Hill             Senior Consultant / VP Development
>>>>>>>
>>>>>>> Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
>>>>>>> http://www.global-village.net/products/practical_webobjects
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Do not post admin requests to the list. They will be ignored.
>>>>>> Webobjects-dev mailing list      (email@hidden)
>>>>>> Help/Unsubscribe/Update your Subscription:
>>>>>>
>>>>>> This email sent to email@hidden
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
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>>>>
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>>>>
>>>
>>> _______________________________________________
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>>
>>
>
> _______________________________________________
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  • Follow-Ups:
    • Re: Session being created continuously...
      • From: Amedeo Mantica <email@hidden>
References: 
 >Session being created continuously... (From: Amedeo Mantica <email@hidden>)
 >Re: Session being created continuously... (From: Chuck Hill <email@hidden>)
 >Re: Session being created continuously... (From: Amedeo Mantica <email@hidden>)
 >Re: Session being created continuously... (From: David Avendasora <email@hidden>)
 >Re: Session being created continuously... (From: Amedeo Mantica <email@hidden>)
 >Re: Session being created continuously... (From: Amedeo Mantica <email@hidden>)
 >Re: Session being created continuously... (From: Miguel Arroz <email@hidden>)
 >Re: Session being created continuously... (From: Amedeo Mantica <email@hidden>)

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