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Posted to httpclient-users@hc.apache.org by Oleg Kalnichevski <ol...@apache.org> on 2008/03/28 10:54:27 UTC

Re: Problem sending request using HttpClient when the server receiving request goes down and is started again.

On Thu, 2008-03-27 at 11:53 +0000, gagneet wrote: 
> Hi Oleg,
>   As I was using Singleton HttpClient object the JSESSIONID persisted for every request. I have cleared the persistence by calling clearCookies() method on the HttpState object corresponding to the HttpClient object. Should I call this method after every call or should I call it only if the connection is timed out? Please advice.
>    
>   Regards,
>   Gagneet
> 

Gagneet,

It really depends on how your application manages conversation state on
the client side. Usually applications are expected to maintains an
instance of HttpState per distinct user / thread of execution. This way,
you would not have to mix cookies that belong to different users, and if
an individual connection times out, the HttpState instance associated
with it could simply be discarded along with the JSESSIONID session
cookie. 

Hope this helps

Oleg

> 
>        
> ---------------------------------
>  Why delete messages? Unlimited storage is just a click away.

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Re: Problem sending request using HttpClient when the server receiving request goes down and is started again.

Posted by Oleg Kalnichevski <ol...@apache.org>.

On Thu, 2008-04-03 at 00:57 +0530, Gagneet Chadha wrote:
> Hi Oleg,
> 
> No I was setting HttpState object into HttpClient object. Now I see where I 
> went wrong. But the only API method which will allow me to do that is 
> executeMethod(HostConfiguration hostconfig, HttpMethod method, HttpState 
> state).
> Till now I was using executeMethod(HttpMethod method).Now that means I will 
> have to create a HostConfiguration object which should be singleton. Am I 
> right?

Not really. It should not be a singleton. Anyways, you can pass null as
HostConfiguration, if you are executing a request with an absolute
request URI. HttpClient will create an instance of HostConfiguration for
you.

Hope this helps

Oleg



> Thanks once again for your help.
> 
> Regards,
> Gagneet
> 
> ----- Original Message ----- 
> From: "Oleg Kalnichevski" <ol...@apache.org>
> To: "HttpClient User Discussion" <ht...@hc.apache.org>
> Sent: Thursday, April 03, 2008 12:14 AM
> Subject: Re: Problem sending request using HttpClient when the server 
> receiving request goes down and is started again.
> 
> 
> > gagneet wrote:
> >> Hi Oleg,
> >>    Thanks for your inputs. Now I am making a new HttpState object for 
> >> each request made. But have found a new problem. This problem occurs when 
> >> the requests are concurrent. What is evident is that after redirection 
> >> happens the JSESSIONID of both the requests become same. Could not figure 
> >> out what makes the JSESSIONID for one request to be overwritten by 
> >> JSESSIONID of second request. I am using singleton HttpClient object 
> >> which is created using MultiThreadedHttpConnectionManager.
> >
> > You are passing HttpState as a parameter to the HttpClient#executeMethod, 
> > aren't you?
> >
> > Oleg
> >
> >
> >
> >>
> >>   What can be the possible reason for this? What can be the way(s) to 
> >> avoid this? Regards,
> >>   Gagneet
> >> Oleg Kalnichevski <ol...@apache.org> wrote:
> >>   On Thu, 2008-03-27 at 11:53 +0000, gagneet wrote:
> >>> Hi Oleg,
> >>> As I was using Singleton HttpClient object the JSESSIONID persisted for 
> >>> every request. I have cleared the persistence by calling clearCookies() 
> >>> method on the HttpState object corresponding to the HttpClient object. 
> >>> Should I call this method after every call or should I call it only if 
> >>> the connection is timed out? Please advice.
> >>>
> >>> Regards,
> >>> Gagneet
> >>>
> >>
> >> Gagneet,
> >>
> >> It really depends on how your application manages conversation state on
> >> the client side. Usually applications are expected to maintains an
> >> instance of HttpState per distinct user / thread of execution. This way,
> >> you would not have to mix cookies that belong to different users, and if
> >> an individual connection times out, the HttpState instance associated
> >> with it could simply be discarded along with the JSESSIONID session
> >> cookie. Hope this helps
> >>
> >> Oleg
> >>
> >>
> >>>
> >>> ---------------------------------
> >>> Why delete messages? Unlimited storage is just a click away.
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> >> For additional commands, e-mail: httpclient-users-help@hc.apache.org
> >>
> >>
> >>
> >>        ---------------------------------
> >>  Why delete messages? Unlimited storage is just a click away.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> > For additional commands, e-mail: httpclient-users-help@hc.apache.org
> > 
> 
> 
> ---------------------------------------------------------------------
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> 


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Re: Problem sending request using HttpClient when the server receiving request goes down and is started again.

Posted by Gagneet Chadha <ga...@yahoo.co.in>.

Hi Oleg,

No I was setting HttpState object into HttpClient object. Now I see where I 
went wrong. But the only API method which will allow me to do that is 
executeMethod(HostConfiguration hostconfig, HttpMethod method, HttpState 
state).
Till now I was using executeMethod(HttpMethod method).Now that means I will 
have to create a HostConfiguration object which should be singleton. Am I 
right?
Thanks once again for your help.

Regards,
Gagneet

----- Original Message ----- 
From: "Oleg Kalnichevski" <ol...@apache.org>
To: "HttpClient User Discussion" <ht...@hc.apache.org>
Sent: Thursday, April 03, 2008 12:14 AM
Subject: Re: Problem sending request using HttpClient when the server 
receiving request goes down and is started again.


> gagneet wrote:
>> Hi Oleg,
>>    Thanks for your inputs. Now I am making a new HttpState object for 
>> each request made. But have found a new problem. This problem occurs when 
>> the requests are concurrent. What is evident is that after redirection 
>> happens the JSESSIONID of both the requests become same. Could not figure 
>> out what makes the JSESSIONID for one request to be overwritten by 
>> JSESSIONID of second request. I am using singleton HttpClient object 
>> which is created using MultiThreadedHttpConnectionManager.
>
> You are passing HttpState as a parameter to the HttpClient#executeMethod, 
> aren't you?
>
> Oleg
>
>
>
>>
>>   What can be the possible reason for this? What can be the way(s) to 
>> avoid this? Regards,
>>   Gagneet
>> Oleg Kalnichevski <ol...@apache.org> wrote:
>>   On Thu, 2008-03-27 at 11:53 +0000, gagneet wrote:
>>> Hi Oleg,
>>> As I was using Singleton HttpClient object the JSESSIONID persisted for 
>>> every request. I have cleared the persistence by calling clearCookies() 
>>> method on the HttpState object corresponding to the HttpClient object. 
>>> Should I call this method after every call or should I call it only if 
>>> the connection is timed out? Please advice.
>>>
>>> Regards,
>>> Gagneet
>>>
>>
>> Gagneet,
>>
>> It really depends on how your application manages conversation state on
>> the client side. Usually applications are expected to maintains an
>> instance of HttpState per distinct user / thread of execution. This way,
>> you would not have to mix cookies that belong to different users, and if
>> an individual connection times out, the HttpState instance associated
>> with it could simply be discarded along with the JSESSIONID session
>> cookie. Hope this helps
>>
>> Oleg
>>
>>
>>>
>>> ---------------------------------
>>> Why delete messages? Unlimited storage is just a click away.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
>> For additional commands, e-mail: httpclient-users-help@hc.apache.org
>>
>>
>>
>>        ---------------------------------
>>  Why delete messages? Unlimited storage is just a click away.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: httpclient-users-unsubscribe@hc.apache.org
> For additional commands, e-mail: httpclient-users-help@hc.apache.org
> 


---------------------------------------------------------------------
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Re: Problem sending request using HttpClient when the server receiving request goes down and is started again.

Posted by Oleg Kalnichevski <ol...@apache.org>.

gagneet wrote:
> Hi Oleg,
>    
>   Thanks for your inputs. Now I am making a new HttpState object for each request made. But have found a new problem. This problem occurs when the requests are concurrent. What is evident is that after redirection happens the JSESSIONID of both the requests become same. Could not figure out what makes the JSESSIONID for one request to be overwritten by JSESSIONID of second request. I am using singleton HttpClient object which is created using MultiThreadedHttpConnectionManager. 
>    

You are passing HttpState as a parameter to the 
HttpClient#executeMethod, aren't you?

Oleg



>   Please find the wire logs below.
>    
>   [4/2/08 10:51:43:978 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:978 IST [DEBUG] MultiThreadedHttpConnectionManager - HttpConnectionManager.getConnection:  config = HostConfiguration[host=https://uat.abc.def.ghi], timeout = 0
> [4/2/08 10:51:43:978 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:978 IST [DEBUG] MultiThreadedHttpConnectionManager - HttpConnectionManager.getConnection:  config = HostConfiguration[host=https://uat.abc.def.ghi], timeout = 0
> [4/2/08 10:51:43:993 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] MultiThreadedHttpConnectionManager - Allocating new connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
> [4/2/08 10:51:43:993 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] MultiThreadedHttpConnectionManager - Allocating new connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
> [4/2/08 10:51:43:993 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] HttpConnection - Open connection to uat.abc.def.ghi:443
> [4/2/08 10:51:43:993 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] HttpConnection - Open connection to uat.abc.def.ghi:443
> [4/2/08 10:51:44:103 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:103 IST [DEBUG] header - >> "GET /servlet/com.ghi.selflink.servlet.SelfLinkServlet?param1=N&param2=ABCD1265447019&param3=KVWWDNMM&param4=I HTTP/1.1[\r][\n]"
> [4/2/08 10:51:44:103 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:103 IST [DEBUG] HttpMethodBase - Adding Host request header
> [4/2/08 10:51:44:118 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:118 IST [DEBUG] header - >> "GET /servlet/com.ghi.selflink.servlet.SelfLinkServlet?param1=N&param2=ABCD1231231232&param3=HGJFKDIR&param4=I HTTP/1.1[\r][\n]"
> [4/2/08 10:51:44:118 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:118 IST [DEBUG] HttpMethodBase - Adding Host request header
> [4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
> [4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
> [4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "[\r][\n]"
> [4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
> [4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
> [4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "[\r][\n]"
> [4/2/08 10:51:45:775 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "HTTP/1.1 302 Found[\r][\n]"
> [4/2/08 10:51:45:775 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "HTTP/1.1 302 Found[\r][\n]"
> [4/2/08 10:51:45:775 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:38 GMT[\r][\n]"
> [4/2/08 10:51:45:775 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:38 GMT[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Set-Cookie: JSESSIONID=0000GV6ablUJRVpGEyoZghOmPO5:-1;Path=/[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Set-Cookie: JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1;Path=/[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Pragma: No-cache[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Pragma: No-cache[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Cache-Control: no-cache[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Cache-Control: no-cache[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Expires: Thu, 01 Jan 1970 00:00:00 GMT[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Expires: Thu, 01 Jan 1970 00:00:00 GMT[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Location: https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Location: https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Length: 0[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Length: 0[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Type: text/html; charset=ISO-8859-1[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Type: text/html; charset=ISO-8859-1[\r][\n]"
> [4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
> [4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Cookie accepted: "$Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/"
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Cookie accepted: "$Version=0; JSESSIONID=0000GV6ablUJRVpGEyoZghOmPO5:-1; $Path=/"
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect required
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect required
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect requested to location 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1'
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect requested to location 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1'
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirecting from 'https://uat.abc.def.ghi:443/servlet/com.ghi.selflink.servlet.SelfLinkServlet' to 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirecting from 'https://uat.abc.def.ghi:443/servlet/com.ghi.selflink.servlet.SelfLinkServlet' to 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Execute redirect 1 of 100
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Execute redirect 1 of 100
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
> [4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
> [4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "GET /index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1 HTTP/1.1[\r][\n]"
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "GET /index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1 HTTP/1.1[\r][\n]"
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] HttpMethodBase - Adding Host request header
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] HttpMethodBase - Adding Host request header
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Cookie: $Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/[\r][\n]"
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Cookie: $Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/[\r][\n]"
> [4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "[\r][\n]"
> [4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "HTTP/1.1 200 OK[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:39 GMT[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Transfer-Encoding: chunked[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Content-Type: text/html;charset=ISO-8859-1[\r][\n]"
> [4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpConnection - Releasing connection back to connection manager.
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpConnection - Releasing connection back to connection manager.
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Freeing connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Freeing connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] IdleConnectionHandler - Adding connection at: 1207113706056
> [4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Notifying no-one, there are no waiting threads
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] IdleConnectionHandler - Adding connection at: 1207113706056
> [4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Notifying no-one, there are no waiting threads
> 
>   What can be the possible reason for this? What can be the way(s) to avoid this? 
>    
>   Regards,
>   Gagneet
> Oleg Kalnichevski <ol...@apache.org> wrote:
>   
> On Thu, 2008-03-27 at 11:53 +0000, gagneet wrote: 
>> Hi Oleg,
>> As I was using Singleton HttpClient object the JSESSIONID persisted for every request. I have cleared the persistence by calling clearCookies() method on the HttpState object corresponding to the HttpClient object. Should I call this method after every call or should I call it only if the connection is timed out? Please advice.
>>
>> Regards,
>> Gagneet
>>
> 
> Gagneet,
> 
> It really depends on how your application manages conversation state on
> the client side. Usually applications are expected to maintains an
> instance of HttpState per distinct user / thread of execution. This way,
> you would not have to mix cookies that belong to different users, and if
> an individual connection times out, the HttpState instance associated
> with it could simply be discarded along with the JSESSIONID session
> cookie. 
> 
> Hope this helps
> 
> Oleg
> 
> 
>>
>> ---------------------------------
>> Why delete messages? Unlimited storage is just a click away.
> 
> 
> ---------------------------------------------------------------------
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> For additional commands, e-mail: httpclient-users-help@hc.apache.org
> 
> 
> 
>        
> ---------------------------------
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Re: Problem sending request using HttpClient when the server receiving request goes down and is started again.

Posted by gagneet <ga...@yahoo.co.in>.

Hi Oleg,
   
  Thanks for your inputs. Now I am making a new HttpState object for each request made. But have found a new problem. This problem occurs when the requests are concurrent. What is evident is that after redirection happens the JSESSIONID of both the requests become same. Could not figure out what makes the JSESSIONID for one request to be overwritten by JSESSIONID of second request. I am using singleton HttpClient object which is created using MultiThreadedHttpConnectionManager. 
   
  Please find the wire logs below.
   
  [4/2/08 10:51:43:978 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:978 IST [DEBUG] MultiThreadedHttpConnectionManager - HttpConnectionManager.getConnection:  config = HostConfiguration[host=https://uat.abc.def.ghi], timeout = 0
[4/2/08 10:51:43:978 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:978 IST [DEBUG] MultiThreadedHttpConnectionManager - HttpConnectionManager.getConnection:  config = HostConfiguration[host=https://uat.abc.def.ghi], timeout = 0
[4/2/08 10:51:43:993 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] MultiThreadedHttpConnectionManager - Allocating new connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
[4/2/08 10:51:43:993 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] MultiThreadedHttpConnectionManager - Allocating new connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
[4/2/08 10:51:43:993 IST] 237a6051 SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] HttpConnection - Open connection to uat.abc.def.ghi:443
[4/2/08 10:51:43:993 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:43:993 IST [DEBUG] HttpConnection - Open connection to uat.abc.def.ghi:443
[4/2/08 10:51:44:103 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:103 IST [DEBUG] header - >> "GET /servlet/com.ghi.selflink.servlet.SelfLinkServlet?param1=N&param2=ABCD1265447019&param3=KVWWDNMM&param4=I HTTP/1.1[\r][\n]"
[4/2/08 10:51:44:103 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:103 IST [DEBUG] HttpMethodBase - Adding Host request header
[4/2/08 10:51:44:118 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:118 IST [DEBUG] header - >> "GET /servlet/com.ghi.selflink.servlet.SelfLinkServlet?param1=N&param2=ABCD1231231232&param3=HGJFKDIR&param4=I HTTP/1.1[\r][\n]"
[4/2/08 10:51:44:118 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:118 IST [DEBUG] HttpMethodBase - Adding Host request header
[4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
[4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
[4/2/08 10:51:44:134 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "[\r][\n]"
[4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
[4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
[4/2/08 10:51:44:134 IST] 237a6051 SystemErr     R 2008/04/02 10:51:44:134 IST [DEBUG] header - >> "[\r][\n]"
[4/2/08 10:51:45:775 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "HTTP/1.1 302 Found[\r][\n]"
[4/2/08 10:51:45:775 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "HTTP/1.1 302 Found[\r][\n]"
[4/2/08 10:51:45:775 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:38 GMT[\r][\n]"
[4/2/08 10:51:45:775 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:38 GMT[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:775 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Set-Cookie: JSESSIONID=0000GV6ablUJRVpGEyoZghOmPO5:-1;Path=/[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Set-Cookie: JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1;Path=/[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Pragma: No-cache[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Pragma: No-cache[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Cache-Control: no-cache[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Cache-Control: no-cache[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Expires: Thu, 01 Jan 1970 00:00:00 GMT[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Expires: Thu, 01 Jan 1970 00:00:00 GMT[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Location: https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Location: https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Length: 0[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Length: 0[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Type: text/html; charset=ISO-8859-1[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Type: text/html; charset=ISO-8859-1[\r][\n]"
[4/2/08 10:51:45:790 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
[4/2/08 10:51:45:790 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:790 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Cookie accepted: "$Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/"
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Cookie accepted: "$Version=0; JSESSIONID=0000GV6ablUJRVpGEyoZghOmPO5:-1; $Path=/"
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect required
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect required
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect requested to location 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1'
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirect requested to location 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1'
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirecting from 'https://uat.abc.def.ghi:443/servlet/com.ghi.selflink.servlet.SelfLinkServlet' to 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Redirecting from 'https://uat.abc.def.ghi:443/servlet/com.ghi.selflink.servlet.SelfLinkServlet' to 'https://uat.abc.def.ghi/index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Execute redirect 1 of 100
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodDirector - Execute redirect 1 of 100
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
[4/2/08 10:51:45:868 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
[4/2/08 10:51:45:868 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:868 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "GET /index/regdto.jsp;jsessionid=0000GV6ablUJRVpGEyoZghOmPO5:-1 HTTP/1.1[\r][\n]"
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "GET /index/regdto.jsp;jsessionid=0000htQCWkn5-9X9ZXuqlf6W9AW:-1 HTTP/1.1[\r][\n]"
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] HttpMethodBase - Adding Host request header
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] HttpMethodBase - Adding Host request header
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "User-Agent: Jakarta Commons-HttpClient/3.0[\r][\n]"
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Host: uat.abc.def.ghi[\r][\n]"
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Cookie: $Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/[\r][\n]"
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "Cookie: $Version=0; JSESSIONID=0000htQCWkn5-9X9ZXuqlf6W9AW:-1; $Path=/[\r][\n]"
[4/2/08 10:51:45:884 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "[\r][\n]"
[4/2/08 10:51:45:884 IST] 237a6051 SystemErr     R 2008/04/02 10:51:45:884 IST [DEBUG] header - >> "[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "HTTP/1.1 200 OK[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Date: Wed, 02 Apr 2008 05:24:39 GMT[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Server: IBM_HTTP_Server[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Transfer-Encoding: chunked[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Content-Type: text/html;charset=ISO-8859-1[\r][\n]"
[4/2/08 10:51:46:009 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:009 IST [DEBUG] header - << "Content-Language: en-US[\r][\n]"
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Resorting to protocol version default close connection policy
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpMethodBase - Should NOT close connection, using HTTP/1.1
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpConnection - Releasing connection back to connection manager.
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] HttpConnection - Releasing connection back to connection manager.
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Freeing connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Freeing connection, hostConfig=HostConfiguration[host=https://uat.abc.def.ghi]
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] IdleConnectionHandler - Adding connection at: 1207113706056
[4/2/08 10:51:46:056 IST] 2ff8605c SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Notifying no-one, there are no waiting threads
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] IdleConnectionHandler - Adding connection at: 1207113706056
[4/2/08 10:51:46:056 IST] 237a6051 SystemErr     R 2008/04/02 10:51:46:056 IST [DEBUG] MultiThreadedHttpConnectionManager - Notifying no-one, there are no waiting threads

  What can be the possible reason for this? What can be the way(s) to avoid this? 
   
  Regards,
  Gagneet
Oleg Kalnichevski <ol...@apache.org> wrote:
  
On Thu, 2008-03-27 at 11:53 +0000, gagneet wrote: 
> Hi Oleg,
> As I was using Singleton HttpClient object the JSESSIONID persisted for every request. I have cleared the persistence by calling clearCookies() method on the HttpState object corresponding to the HttpClient object. Should I call this method after every call or should I call it only if the connection is timed out? Please advice.
> 
> Regards,
> Gagneet
> 

Gagneet,

It really depends on how your application manages conversation state on
the client side. Usually applications are expected to maintains an
instance of HttpState per distinct user / thread of execution. This way,
you would not have to mix cookies that belong to different users, and if
an individual connection times out, the HttpState instance associated
with it could simply be discarded along with the JSESSIONID session
cookie. 

Hope this helps

Oleg


> 
> 
> ---------------------------------
> Why delete messages? Unlimited storage is just a click away.


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---------------------------------
 Why delete messages? Unlimited storage is just a click away.