I have a problem with an ASP.NET 2.0 Application.
A client request is processed in parrallel by two threads.
After further analysis, it appears that :
- There is 2 disctinct session for the request (Session_Start in
global.asax)
- One of the session ends (Session_End in global.asax).
- The ramining session is used for subsequent requests, and everything works
fine.
- This is happening primarily when the application is started for the first
time, but sometimes it is on a simple page request. No page in particular is
concerned, and I can't reproduce it myself.
My application generates a log file, and the facts exposed here are clearly
visible in that file.
The IIS log file shows that only one request is comming from the client.
Take a look at the following :
Line |Thread Id| Date| Hour|Delta|
Category|Text
------------------------------------------------------------------------------------------
28387| 00000007|05/09/2007|13:35:33.6 11| + |
Hit|Session starting from [196.201.XX.XXX]...|
28388| 00000007|05/09/2007|13:35:33.6 11| 0|
Browsers|Browse r is : [IE] Version [6.0] on [WinXP]|
28393| 00000001|05/09/2007|13:35:33.6 11| 0|
Hit|Session starting from [196.201.XX.XXX]...|
28394| 00000001|05/09/2007|13:35:33.6 11| 0|
Browsers|Browse r is : [IE] Version [6.0] on [WinXP]|
28396| 00000007|05/09/2007|13:35:33.7 83| 172|Client Language
Preferences|Pre fered Language is [fr] LCID -12|
28397| 00000001|05/09/2007|13:35:33.7 83| 0|Client Language
Preferences|Pre fered Language is [fr] LCID -12|
28398| 00000001|05/09/2007|13:35:33.7 98| 15|
|AcquireRequest State|
28399| 00000001|05/09/2007|13:35:33.7 98| 0| |No
Cookie with prefered language. Browser languages will be analysed (english
is default) !|
28400| 00000001|05/09/2007|13:35:33.7 98| 0|
|Selected runtime culture is [fr]|
28401| 00000001|05/09/2007|13:35:33.7 98| 0| ||
28402| 00000007|05/09/2007|13:35:33.7 98| 0|
|AcquireRequest State|
28406| 00000001|05/09/2007|13:35:34.5 33| 735|
StartEndFunctio n|Page [/members/Web/SendFax.aspx] is requested for the first
time.|
28407| 00000007|05/09/2007|13:35:34.5 33| 0|
StartEndFunctio n|Page [/members/Web/SendFax.aspx] is requested for the first
time.|
28408| 00000001|05/09/2007|13:35:34.5 64| 31|
StartEndFunctio n|Entering InitSessionUser Id()|
28409| 00000001|05/09/2007|13:35:34.5 64| 0|
|Time zone offset (GMT) cookie value is [0]|
28410| 00000007|05/09/2007|13:35:34.5 64| 0|
StartEndFunctio n|Entering InitSessionUser Id()|
28411| 00000007|05/09/2007|13:35:34.5 64| 0|
|Time zone offset (GMT) cookie value is [0]|
28412| 00000001|05/09/2007|13:35:35.1 89| 625|
|********* TEMP : GetRoles() : User is
[54************* *************** *************** @yahoo.fr] *********|
28413| 00000007|05/09/2007|13:35:35.2 04| 15|
|********* TEMP : GetRoles() : User is
[54************* *************** *************** @yahoo.fr] *********|
28414| 00000007|05/09/2007|13:35:35.2 51| 47|
RTEFBLDAPUser|F inding existing user [xx************@ yahoo.fr] in []...|
28415| 00000001|05/09/2007|13:35:35.2 51| 0|
RTEFBLDAPUser|F inding existing user [xx************@ yahoo.fr] in []...|
28416| 00000001|05/09/2007|13:35:35.2 67| 16|
DirectoryHelper |DetectDirector y [LDAP://rcs.private]|
28417| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |DetectDirector y [LDAP://rcs.private]|
28418| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Directory is detected as [ActiveDirectory]|
28419| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Naming context from RootDSE is [DC=rcs,DC=priva te]|
28420| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Directory is detected as [ActiveDirectory]|
28421| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Naming context from RootDSE is [DC=rcs,DC=priva te]|
28422| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |GetDefaultCont ainer
[LDAP://rcs.private/ou=XXXXXXXXXXXX XXX,OU=XXXXXXXX XX,DC=rcs,DC=pr ivate] with
user [RCS\rw.gofaxbox] and AuthenticationT ypes [Secure] |
28423| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |GetDefaultCont ainer
[LDAP://rcs.private/ou=XXXXXXXXXXXX XXX,OU=XXXXXXXX XX,DC=rcs,DC=pr ivate] with
user [RCS\rw.gofaxbox] and AuthenticationT ypes [Secure] |
28424| 00000001|05/09/2007|13:35:35.2 67| 0|
RTEFBLDAPUser|D irectorySearche r Filter is
[(&((objectClass =user)(ma****** **********@yaho o.fr)))] Scope is [Subtree]|
28425| 00000007|05/09/2007|13:35:35.2 67| 0|
RTEFBLDAPUser|D irectorySearche r Filter is
[(&((objectClass =user)(ma****** **********@yaho o.fr)))] Scope is [Subtree]|
28427| 00000001|05/09/2007|13:35:35.3 14| 47|
|Find all user's email...|
28428| 00000007|05/09/2007|13:35:35.3 14| 0|
|Find all user's email...|
28429| 00000001|05/09/2007|13:35:35.3 29| 15|
StartEndFunctio n|Leaving InitSessionUser Id()|
28430| 00000007|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|Leaving InitSessionUser Id()|
28431| 00000007|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|End PageLoad|
28432| 00000001|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|End PageLoad|
28433| 00000001|05/09/2007|13:35:36.1 42| 813| Application Error|An
entry with the same key already exists.<?xml version="1.0"
encoding="utf-8"?>[0D][0A]<RTELogClientEx ceptionContaine r
xmlns:xsi="http ://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http ://www.w3.org/2001/XMLSchema">[0D][0A]
<Source>Syste m</Source>[0D][0A] <StackTrace at
System.Collecti ons.Specialized .ListDictionary .Add(Object key, Object
value)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterScr iptBlock(Script Key key, String
script, ListDictionary& amp; scriptBlocks, ArrayList& scriptList, Boolean
needsScriptTags , Boolean& inScriptBlock)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterScr iptBlock(Script Key key, String
script, ClientAPIRegist erType type)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterCli entScriptInclud e(Type type,
String key, String url)[0D][0A] at
System.Web.UI.S criptRegistrati onManager.Regis terClientScript Include(Control
control, Type type, String key, String url)[0D][0A] at
System.Web.UI.S criptManager.Re gisterClientScr iptIncludeInter nal(Control
control, Type type, String key, String url)[0D][0A] at
System.Web.UI.S criptManager.Re gisterScripts()[0D][0A] at
System.Web.UI.S criptManager.On PagePreRenderCo mplete(Object sender, EventArgs
e)[0D][0A] at System.EventHan dler.Invoke(Obj ect sender, EventArgs
e)[0D][0A] at System.Web.UI.P age.OnPreRender Complete(EventA rgs e)[0D][0A]
at System.Web.UI.P age.ProcessRequ estMain(Boolean
includeStagesBe foreAsyncPoint, Boolean
includeStagesAf terAsyncPoint)</StackTrace>[0D][0A] <Message>An entry with
the same key already
exists.</Message>[0D][0A]</RTELogClientExc eptionContainer >|
Any help appreciated.
1  1863 
a common cause is a src="" in the page. this will cause the browser to
do a second request. if you are using firefox, check the media tab to
see if the page is referenced again. if you are using IE, get the dev
toolbar.
-- bruce (sqlwork.com)
Olivier Matrot wrote:
I have a problem with an ASP.NET 2.0 Application.
A client request is processed in parrallel by two threads.
After further analysis, it appears that :
- There is 2 disctinct session for the request (Session_Start in
global.asax)
- One of the session ends (Session_End in global.asax).
- The ramining session is used for subsequent requests, and everything works
fine.
- This is happening primarily when the application is started for the first
time, but sometimes it is on a simple page request. No page in particular is
concerned, and I can't reproduce it myself.
My application generates a log file, and the facts exposed here are clearly
visible in that file.
The IIS log file shows that only one request is comming from the client.
Take a look at the following :
Line |Thread Id| Date| Hour|Delta|
Category|Text
------------------------------------------------------------------------------------------
28387| 00000007|05/09/2007|13:35:33.6 11| + |
Hit|Session starting from [196.201.XX.XXX]...|
28388| 00000007|05/09/2007|13:35:33.6 11| 0|
Browsers|Browse r is : [IE] Version [6.0] on [WinXP]|
28393| 00000001|05/09/2007|13:35:33.6 11| 0|
Hit|Session starting from [196.201.XX.XXX]...|
28394| 00000001|05/09/2007|13:35:33.6 11| 0|
Browsers|Browse r is : [IE] Version [6.0] on [WinXP]|
28396| 00000007|05/09/2007|13:35:33.7 83| 172|Client Language
Preferences|Pre fered Language is [fr] LCID -12|
28397| 00000001|05/09/2007|13:35:33.7 83| 0|Client Language
Preferences|Pre fered Language is [fr] LCID -12|
28398| 00000001|05/09/2007|13:35:33.7 98| 15|
|AcquireRequest State|
28399| 00000001|05/09/2007|13:35:33.7 98| 0| |No
Cookie with prefered language. Browser languages will be analysed (english
is default) !|
28400| 00000001|05/09/2007|13:35:33.7 98| 0|
|Selected runtime culture is [fr]|
28401| 00000001|05/09/2007|13:35:33.7 98| 0| ||
28402| 00000007|05/09/2007|13:35:33.7 98| 0|
|AcquireRequest State|
28406| 00000001|05/09/2007|13:35:34.5 33| 735|
StartEndFunctio n|Page [/members/Web/SendFax.aspx] is requested for the first
time.|
28407| 00000007|05/09/2007|13:35:34.5 33| 0|
StartEndFunctio n|Page [/members/Web/SendFax.aspx] is requested for the first
time.|
28408| 00000001|05/09/2007|13:35:34.5 64| 31|
StartEndFunctio n|Entering InitSessionUser Id()|
28409| 00000001|05/09/2007|13:35:34.5 64| 0|
|Time zone offset (GMT) cookie value is [0]|
28410| 00000007|05/09/2007|13:35:34.5 64| 0|
StartEndFunctio n|Entering InitSessionUser Id()|
28411| 00000007|05/09/2007|13:35:34.5 64| 0|
|Time zone offset (GMT) cookie value is [0]|
28412| 00000001|05/09/2007|13:35:35.1 89| 625|
|********* TEMP : GetRoles() : User is
[54************* *************** *************** @yahoo.fr] *********|
28413| 00000007|05/09/2007|13:35:35.2 04| 15|
|********* TEMP : GetRoles() : User is
[54************* *************** *************** @yahoo.fr] *********|
28414| 00000007|05/09/2007|13:35:35.2 51| 47|
RTEFBLDAPUser|F inding existing user [xx************@ yahoo.fr] in []...|
28415| 00000001|05/09/2007|13:35:35.2 51| 0|
RTEFBLDAPUser|F inding existing user [xx************@ yahoo.fr] in []...|
28416| 00000001|05/09/2007|13:35:35.2 67| 16|
DirectoryHelper |DetectDirector y [LDAP://rcs.private]|
28417| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |DetectDirector y [LDAP://rcs.private]|
28418| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Directory is detected as [ActiveDirectory]|
28419| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Naming context from RootDSE is [DC=rcs,DC=priva te]|
28420| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Directory is detected as [ActiveDirectory]|
28421| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |Naming context from RootDSE is [DC=rcs,DC=priva te]|
28422| 00000001|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |GetDefaultCont ainer
[LDAP://rcs.private/ou=XXXXXXXXXXXX XXX,OU=XXXXXXXX XX,DC=rcs,DC=pr ivate] with
user [RCS\rw.gofaxbox] and AuthenticationT ypes [Secure] |
28423| 00000007|05/09/2007|13:35:35.2 67| 0|
DirectoryHelper |GetDefaultCont ainer
[LDAP://rcs.private/ou=XXXXXXXXXXXX XXX,OU=XXXXXXXX XX,DC=rcs,DC=pr ivate] with
user [RCS\rw.gofaxbox] and AuthenticationT ypes [Secure] |
28424| 00000001|05/09/2007|13:35:35.2 67| 0|
RTEFBLDAPUser|D irectorySearche r Filter is
[(&((objectClass =user)(ma****** **********@yaho o.fr)))] Scope is [Subtree]|
28425| 00000007|05/09/2007|13:35:35.2 67| 0|
RTEFBLDAPUser|D irectorySearche r Filter is
[(&((objectClass =user)(ma****** **********@yaho o.fr)))] Scope is [Subtree]|
28427| 00000001|05/09/2007|13:35:35.3 14| 47|
|Find all user's email...|
28428| 00000007|05/09/2007|13:35:35.3 14| 0|
|Find all user's email...|
28429| 00000001|05/09/2007|13:35:35.3 29| 15|
StartEndFunctio n|Leaving InitSessionUser Id()|
28430| 00000007|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|Leaving InitSessionUser Id()|
28431| 00000007|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|End PageLoad|
28432| 00000001|05/09/2007|13:35:35.3 29| 0|
StartEndFunctio n|End PageLoad|
28433| 00000001|05/09/2007|13:35:36.1 42| 813| Application Error|An
entry with the same key already exists.<?xml version="1.0"
encoding="utf-8"?>[0D][0A]<RTELogClientEx ceptionContaine r
xmlns:xsi="http ://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http ://www.w3.org/2001/XMLSchema">[0D][0A]
<Source>Syste m</Source>[0D][0A] <StackTrace at
System.Collecti ons.Specialized .ListDictionary .Add(Object key, Object
value)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterScr iptBlock(Script Key key, String
script, ListDictionary& amp; scriptBlocks, ArrayList& scriptList, Boolean
needsScriptTags , Boolean& inScriptBlock)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterScr iptBlock(Script Key key, String
script, ClientAPIRegist erType type)[0D][0A] at
System.Web.UI.C lientScriptMana ger.RegisterCli entScriptInclud e(Type type,
String key, String url)[0D][0A] at
System.Web.UI.S criptRegistrati onManager.Regis terClientScript Include(Control
control, Type type, String key, String url)[0D][0A] at
System.Web.UI.S criptManager.Re gisterClientScr iptIncludeInter nal(Control
control, Type type, String key, String url)[0D][0A] at
System.Web.UI.S criptManager.Re gisterScripts()[0D][0A] at
System.Web.UI.S criptManager.On PagePreRenderCo mplete(Object sender, EventArgs
e)[0D][0A] at System.EventHan dler.Invoke(Obj ect sender, EventArgs
e)[0D][0A] at System.Web.UI.P age.OnPreRender Complete(EventA rgs e)[0D][0A]
at System.Web.UI.P age.ProcessRequ estMain(Boolean
includeStagesBe foreAsyncPoint, Boolean
includeStagesAf terAsyncPoint)</StackTrace>[0D][0A] <Message>An entry with
the same key already
exists.</Message>[0D][0A]</RTELogClientExc eptionContainer >|
Any help appreciated.
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