Coldfusion session/client variables?

We have multiple users using VPN to get to our intranet. When the second user gets on they get the first person's session/client variables?
I have tried looking for the session/client variables and where they are stored but I can't seem to find them. I have tried searching out the cookies.
I would appreciate any help.

There are not too many people on this forum that have dabbled with ColdFusion. I used to, but that was more than one decade ago.
Your best bet on getting assistance with your problem, is to go to the ColdFusion forum.

Similar Messages

ColdFusion 8 - Client Variables don't work with PostgreSQL

RedHat Fedora Linux
PostgreSQL version 8.2
ColdFusion version 8 Developer
Steps to create problem:
Creating Client Variables in the "ColdFusion Administrator".
checked "Create Client Variables" pressed "submit"
Results:
The "ColdFusion Administrator" errors out.
Problem:
"ColdFusion Administrator" calls a the page "postgresql.cfm",
which creates the tables in the database.
Until "ColdFusion" executes the SQL "create table CGLOBAL
(cfid char(64), data text, lvisit datetime)".
According to PostgreSQL website and documentation, the data
type "datetime" doesn't exists."
Valid 'time/date data types' are timestamp,interval,date and
time.
Question:
Is there some way of getting "ColdFusion" to "create a
'Client Variables' database" in PostgreSQL DBMS,
using "ColdFusion Administrator?
What are the SQL statements to "create a 'Client Variables'
database" by hand?

Have you viewed the Livedocs section at
Client
Variables page? It does explain the process for creating client
variable tables:
Use the following sample ColdFusion page as a model for creating
client variable database tables in your own database. However, keep
in mind that not all databases support the same column data type
names. For the proper data type, see your database
documentation.
This is where you can substitute the correct data types that
are appropriate for your flavor of DBMS.
Phil

Client variables storage in production environment?

Right now we are using Registry to store client variables in production environment, will changing it to Database increase the performance? or what i heard from my colleague is that In production environment , using Database for client storage is not advisable! how true is his statement.

His statement is completely wrong. The docs talk about this here: http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WSc3ff6d0ea77859461172e0811cbec0c35c -7fd5.html
Specifically, read this paragraph from that reference:
Choosing a client variable storage method
By default, ColdFusion stores client variables in the Registry. In most cases, however, it is more appropriate to store the information as client cookies or in a SQL database.
The ColdFusion Administrator Client Variables page controls the default client variable location. You can override the default location by specifying a This.clientStorage value in Application.cfc or by setting the clientStorage attribute in thecfapplication tag.
You can specify the following values for the client storage method:
Registry (default). Client variables are stored under the key HKEY_LOCAL_MACHINE\ SOFTWARE\Macromedia\ColdFusion\CurrentVersion\Clients.
Name of a data source configured in ColdFusion Administrator
Cookie
Generally, it is most efficient to store client variables in a database. Although the Registry option is the default, the Registry has significant limitations for client data storage. The Registry cannot be used in clustered systems and its use for client variables on UNIX is not supported in ColdFusion.

Client Variable vs Cookies

Hello all, first off, I have never used a client variable
ever in Coldfusion. I am looking for some advice as to the
pros/cons of using client variables over cookies...
The only real situation I use a cookie for right now is to
store their username if they select remember me so that next time
they come to the site it remembers their username... Is this
something I should be using a client variable for?
Any advise/comparison to the uses of the two would be great.
Thanks!

I never saw anything ever get inserted into the CDATA and CGLOBAL tables. Is that not the point of these tables? To hold the session data?
Yes, it is. You seem to have done the settings properly. However, you must enable client variables.
Here's how you do it. If your application file is Application.cfm, then add the following attributes to the cfapplication tag
clientManagement="yes" clientStorage="Name_of_datasource_you_created"
If your application file is Application.cfc, then define the following properties
this.clientManagement = "yes";
this.clientStorage = "Name_of_datasource_you_created";

Client variables - quick confirmation

Can someone confirm something with client variables...
1. <cfparam name=client.colour value="blue"> in
application.cfm
2. On a web page <cfset client.colour="red"> and the
same page confirms this when I cfoutput the value
3 If I check that value on yet another page, it should be
red, shouldn't it ? But, instead its blue
I'm having a major problem with cfclientstore=myDSN where it
points to an Access2007 database via an ODBC socket connection.

sorry about that, my application.cfm does actually use the
correct format
<cfparam name="client.colour" default="blue">
I'm still getting the problem - does anyone else use MS
Access 2007 ? When I look at the database it's storing "blue" but
when I'm changing the value in another page with <cfset
client.colour="red"> its not storing this change in the access
database
I've tied upgrading CF from 8.0 to 8.01 with still no joy
I read Adobe's advice on a lack of Access 2007 driver, and
used the ODBC socket instead but still no joy
Is there anything in my cfapplication that could be messing
around ?
<cfapplication
name="Catalogue"
clientmanagement="Yes"
sessionmanagement="Yes"
setclientcookies="Yes"
sessiontimeout="#CreateTimeSpan(0, 0, 360, 0)#"
applicationtimeout="#CreateTimeSpan(0, 0, 360, 0)#"
clientstorage="cfclientstore"
loginstorage="session">

Session member variable usage

I want to keep client-specific information for each incoming connection, but i heard it cannot be done with session variable. i read in a book that session variables in a servlet (or scriptlet section of a jsp page) are shared among all incoming threads (therefore all clients) accessing the servlet.
I guess a simple example of what i want to acheive is a shopping cart, but keeping the shopping cart order in a session-like variable specific to the original client machine/user who placed the order.
I thought of doing something like:
request.getSession().setAttribute("ShoppingCart", cart);
inside my doGet() method in a servlet. And a book author says it won't work. He says ff I use a member to keep information about user1, sometimes the session variable may be overwritten by user2 if they are accessing the servlet at the same time.
1) Can someone confirm whether session variables are shared among all incoming requests to the same servlet?
2) If so, how can i easily keep track of incoming user/client mahcine-specific information, without using cookies or other client-side storage methods.
3) If client side storage is necessary (to keep user info), what are the common techniques and the classes used?
I am fairly new to j2ee so i would appriciate it if you can explain in layman's terms.

Hi,
Session scope is made to save the user specific information only. All class(servlet) level members(state) can be shared by all incoming thread. So its a bad practice, if we used class level session variable which stores the client specific info.
I dont think session will overwritten if you used session var locally(inside any method).
When any user logs in you should create a new session for that user.
Means if you have LoginServlet.java file which have log in functionality, Here only you need to create new session.
HttpSession session = request.getSession();
Other than this file every where you need to use
request.getSeission(false);
In your case it would be
request.getSession(false).setAttribute("ShoppingCart", cart);
Hope This will help you.

LVISIT usage in Client Variables

I have a need to track the last visit of a user on my site.
After some searching it appears that the LVISIT column of the
CGLOBAL table in the client variables database should hold the data
that I need. Unfortunately this column is null on every record.
In CF Administrator the global client variable updates are
enabled.
Why is this not getting updated?
Version Info:
Server Product ColdFusion MX
Version 7,0,2,142559
Edition Standard
Operating System Windows 2003
OS Version 5.2

Hi,
If you are using DB user you have to connect to the disocverer using your connect window without checking the "oracle application user" at the bottom. for example apps/[email protected] out the TNS name for the DB user is correct or not.
If your using an application user then first you have to go to discoverer administartor and go to tools/options and go to connection and check connect to both standard and application EUL's and give the gateway user as APPLSYSPUB/PUB and foundation name as APPS.
If your connecting to application user,the TNS name should be set in oracle/BI tools home/network/admin and set the TNS name.
Hope this helps you.
Best Wishes,
Kranthi.

Client Variable Purge

I am at my wits end trying to fix what I think is a client
variable problem. I am currently running CFMX 6.1 + updaters on a
Windows 2003 R2 SP1standard edition server with IIS 6.0. Since
implementing with this server (01/2007), we have installed all the
necessary Windows patches for security every month. I have
installed hot fixes for client variables (TN 19590) and a few
others for COM and cfforms issues. I have experienced CF 'hanging';
not allowing anyone into the application. I shut down the CF MX
Application service, the CF MX ADBC agent, and try to shut the CF
MX ODBC server, but it remains in a 'stopping' state, with a reboot
the only cure.
While trying to troubleshoot the problem, I have come across
the following error:
10/16 15:12:24 error Operation failed on the data source
named "Treasury".
coldfusion.runtime.ClientScopeDBException: Operation failed
on the data source named "Treasury".
at
coldfusion.runtime.JDBCHelper.Store(PersistenceFactory.java:261)
at
coldfusion.runtime.ClientScopeServiceImpl.PersistClientVariables(ClientScopeServiceImpl.j ava:282)
at
coldfusion.runtime.ClientScopeServiceImpl.PersistClientVariablesForRequest(ClientScopeSer viceImpl.java:264)
at
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:3 2)
at
coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:35)
at
coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:43)
at
coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:105)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:249)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:192)
at
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:348)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:451)
at
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:294)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
That's it - nothing else. I have searched high an low,
finding similar errors, but they all have an additional error
message like outOfBounds. This error appears up to 200 times per
day, some within seconds of each other. (I never really looked at
the logs, but it has been occurring since I brought up each server,
test and production). I mentioned the client variable fix above
because of the references in the error message like
'ClientScopeServiceImpl.PersistClientVariables'. I am using an
Access DB to store the client variables, with a purge date of 90
days. Within the Access DB there are the CDATA and CGLOBAL tables,
but with only 278 records in each. I inheritated the system in
version 4.5, and have upgrade to 5 and the to 6.1, so I have never
really looked at client variables before.
Any ideas? Could these errors be created every time someone
logs onto the application? Your time and suggestions are greatly
appreciated.
Libby

Libby, your wits should take you further. Your problem is
your choice of databases more than a client variable issue. It is
regularyly stated that ODBC and especially ODBC to a desktop
database (access, paradox, etc.) is not recommended for real
applications. More so, only use Access for low traffic,
departmental applications or not at all. Storing client variables
in access only compounds the bad choice. Client variables stored in
a database means there is a db read at the start of every request
and a write at the end of each request. That alone will over stress
access.
And then you have your explicit database queries on top of
that. With a datasource named "treasury", it seem likely you are
storing application data there too. So you have a multithreaded
application server going to a database that can only handle a
single connection at a time where you are making multiple database
queries for every page request.
Win2k3 was originally distributed
without any desktop ODBC drivers, the msjet, etc. Microsoft
indicated that an application server was not a place where desktop
databases should be used. Unfortunately, MS let up and eventually
put the destop ODBC drivers back in win2k3. But, their thinking is
correct. Desktop db's cannot keep pace with a high speed appserver,
including coldfusion and win2k3.
Path of a JDBC query to MS SQL
server:
CFMX (java) - JDBC SQL server driver - over wire as TDS
request straight to the database server. MSS DBMS engine does all
work on back end.
[Path of a ODBC query to MS Access:
CFMX (java) - JDBC sequellink driver - sequelink server -
sequelink client - windows ODBC - Access driver -msjet manipulates
access file.
I will make the main points in this thread only, since they
are all around these forums. ODBC is very indirect. File based
desktop databases are typically not thread safe, multi-user or just
capable enough for any appserver. Use a real DBMS, in short. Even
mssql developer, desktop or what ever their new low cost database.
Say good bye to Access for any real application's backend.

Setting expiration of client variables

We are in need to expire client variables at the same rate as
session variables. In our case this is 2 hours.
Unfortunately, our client variables expire randomly well
before 2 hours are passed.
What should be the correct setting to achieve this?
Our configuration:
- Client variables are stored in their own separate database.
- The checkbox 'Purge data for clients that remain unvisited
for 0 days' is checked and days is set to 0.
- The checkbox 'Disable global client variable updates' is
not checked.
- The 'Purge Interval' is set to 2 hours and 0 minutes.
Thank you,
Alex Ismail

Hi,
I noticed you managed to "persuade" the proxy WS client in setting timeout.
Can this be done using JCX control too?
With regards, matevz
Matevz Mutec, M.Sc.
Information systems development engineer
Telekom Slovenije, d.d.
Information technology department
Tel.no.: +386-1-2341868
Cell.tel.no.: +386-41-752266 (MPO 8868)
www.telekom.si
<velagale> wrote in message news:[email protected]..
Anyway,
I figured it out myself, by looking at other posts and applying some
reflection API
HelloWorld_Impl proxy = new HelloWorld_Impl();
HelloWorldSoap soapProxy = proxy.getHelloWorldSoap();
// I learnt that this soapProxy is infact an object of HelloWorldSoap_Stub
class
HelloWorldSoap_Stub myStub =
(HelloWorldSoap_Stub)proxy.getHelloWorldSoap();
BindingInfo bInfo =
(BindingInfo)myStub._getProperty("weblogic.webservice.bindinginfo");
bInfo.setTimeout(5); //secs
myStub._setProperty("weblogic.webservice.rpc.timeoutsecs", "5"); // secs
// finally you can call the methods of the web service
soapProxy.Hello();
Please be aware that, upon time out, you would get an exception : <class =
java.rmi.RemoteException
cause = javax.xml.rpc.soap.SOAPFaultException:
javax.xml.rpc.JAXRPCException:java.net.SocketTimeoutException: Read timed
out.>

Client variable storage setting

Here is a little question hope someone can shine some light
on it.
Right now I am using the database as the client variable
storage in CF (with options of Purge data for 1 day and Disable
global client variable updates ). But it gives the database server
a really heavy load (50-90% CPU usage average) and I believe this
is the bottleneck of the time it takes CF serving the pages. I was
wondering that is this good idea to put the client variable storage
back to the Registry or cookie (for a quick fix until we upgrade
the servers in 4 weeks)? We have average of 46000 page view/day and
9000 visits/day.
CFMX 6.11 apply the Hot fix for client variables already
Win2003
P4 with 2gb ram
Thanks

It is a bottleneck. But on 46k pages views with that high of
a CPU load, you must really have a very undersized db server. We're
doing 3 million page views/day and about 65% of those use client
variables and it doesn't even phase our db server.
Putting them into a cookie shoudl work just fine. I wouldn't
use the registry setting. It'll make a mess of your registry.
You should consider session variables where possible. Those
stay in server memory.

Cannot Delete Client Variables

Summary: I have a logout page that deletes session and client
variables. When I execute the page, the CF debugging information
notes that all the session and client vars have been deleted.
However, when I execute another page in the same application and on
the same browser, that page's debugging info notes that the client
var stll exists. How is the server showing that the client var
doesn't exist one page, but exists on another? (I am using CF MX
Version: 6,1,0,63958)
*****Here's the code I use to delete the client and session
vars

<cfapplication
name="SteadyApp"
sessionmanagement="yes"
sessiontimeout="#createTimeSpan(0,0,0,0)#">

<cfset DelteVar = DeleteClientVariable("userID")>
*****Here's the code from my application.cfm page:
<cfapplication
name = "SteadyApplication"
clientmanagement = "Yes"
clientstorage="SteadyDatabase"
setdomaincookies="Yes"
sessionmanagement="Yes">
Thank you in advance.
/AJ

I continuely have this same problem, so if someone has any
insight on whats up with this... please.
let me ask you this though... where is your setting of your
variable located? is it in the appplication.cfm page?
if it is this might be the problem. even though you are
deleting the var in your delete page, the application page is
present and will persist the var because ... it knows...

Client variables stored in registry getting errors

I'm moving from CF9 to CF10. On the new server I've moved things over, and run the suggested lock-down proceedures. On the CF9 box, I'm using the registry to store client variables.
On the new server I've set it up to use the registry to store client variables. In the coldfusion-out file, I'm getting errors like:
Jan 15, 2013 15:39:03 PM Information [ajp-bio-8012-exec-4] - Unable to set value HKEY_LOCAL_MACHINE\SOFTWARE\Macromedia\ColdFusion\CurrentVersion\Clients\4210-c8158ffa199 3bc18-7CF31106-90B1-1C19-1B0C24F3BDD33D8C\hitcount: Windows error number 0 occurred.The handle is invalid.
Jan 15, 2013 15:39:03 PM Information [ajp-bio-8012-exec-4] - Unable to set value HKEY_LOCAL_MACHINE\SOFTWARE\Macromedia\ColdFusion\CurrentVersion\Clients\4210-c8158ffa199 3bc18-7CF31106-90B1-1C19-1B0C24F3BDD33D8C\cftoken: Windows error number 0 occurred.The handle is invalid.
Jan 15, 2013 15:39:03 PM Information [ajp-bio-8012-exec-4] - Unable to set value HKEY_LOCAL_MACHINE\SOFTWARE\Macromedia\ColdFusion\CurrentVersion\Clients\4210-c8158ffa199 3bc18-7CF31106-90B1-1C19-1B0C24F3BDD33D8C\cfid: Windows error number 0 occurred.The handle is invalid.
On the new server, CF logs in with its own user whereas on the old system, CF logged in as admin. I'm guessing this might be the issue.
Anyone having similar issues or can suggest a solution? I did a search but most people were either turing off client variables or the answer was from 2006.
Thanks.

All that said (and I do agree with Adam and Carl that you should eschew the registry for client vars), the answer to your question is that yes, it had to do with your having changed the user that the CF service runs as. You need to grant permissions on that path in the registry (HKEY_LOCAL_MACHINE\SOFTWARE\Macromedia\ColdFusion\CurrentVersion\Clients\) for that user. Find it using regedit, and right-click on that path, and choose “permissions”.
Hopefully that’s enough to get you going. But again, do give serious thought to switching to cookie or a datasource to hold them.
(Sadly, while many people will tell you to do that, they don’t give any guidance on how to get any and all legit client var data out of the registry and into a new storage mechanism. That’s because it’s not easy, and it’s way too big to discuss here in this forum post.)
/charlie

CF MX7, Client variables and an internal app

I work for a retail company that has over 500 stores. Some time ago, I wrote 4 applications that the stores use in CF. In the time since I developed them, we moved to CFMX7 and now are changing to a new point of sale, on a Windows XP platform with IE 7.0 as the client.
Nothing can change on the client so any suggestions in that area won't help me.
The applicaitons the stores use are store specific and I have to pass the store number in the URL. I store the store number in a Client variable and a Cookie (as backup). I was lazy back then and in each application, the store number variable is the same name.
So now I have a problem since we moveed to the new POS (which I do not believe has anything to do with it, but maybe).
When one store is in one app (call it App A) and another store is in App B, at some point, the store numbers get mixed up and some how when the first store submits, it ends up submitting with the other store number.
Are my client variables getting crossed up? I thought that the client variables were instance specific.
Thoughts?

I had no problems with MySQL 5.1 on CF8.0.1. However, I found
there were quite a few corners to turn when changing the datasource
for the client store. I followed the following steps:
1) Create a new database (called
client_data)using the following SQL script:
CREATE DATABASE client_data;
USE client_data;
/*Table structure for table cdata */
DROP TABLE IF EXISTS cdata;
CREATE TABLE cdata (
cfid char(64) NOT NULL,
app char(64) NOT NULL,
data text,
UNIQUE KEY id1 (cfid,app)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*Table structure for table cglobal */
DROP TABLE IF EXISTS cglobal;
CREATE TABLE cglobal (
cfid char(64) NOT NULL,
data text,
lvisit datetime NOT NULL,
KEY id2 (cfid),
KEY id3 (lvisit)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
2) Configure a datasource called
client_data in the datasources page in the Coldfusion
Adimistrator. Use the following settings:
Data Source Name:client_data
Driver:MySQL (4/5)
Database:client_data
Server:127.0.0.1
Port:3306
Username:root
Password:BKBK1432
3) In the Client Variables page in the Administrator, delete
any previous datasources used for client storage.
4) Restart Coldfusion.
5) In the Client Variables page in the Administrator, add
client_data as the store for client variables. Make sure its
radio-button is selected.
6) If necessary, change the value of the
clientStorage attribute in Application.cfm or the
this.clientStorage in Application.cfc to "client_data".

What is the "Session Client"?

Hi.
Could you please let me know what the "Session Client" is?
It can be given to each user, and seems to be used for "the filtering in content models".
This might be a basic question, but I don't really understand how I can use it.
I could not find any descriptions in the HANA manuals.
Thank you,
-mamoru

HI Mamoru,
the "session client" is a NetWeaver heritage.
SAP ERPs data model allows the separation of clients (business clients - not pieces of software) in a way that the same technical system can be used by several clients (business clients) while having all data separated.
That way a user "JONES" in ciient "100" can only access data from client "100" and not from any other client.
These clients can be created by the system admins at will and differ from customer system to customer system.
Now if you want to create an analysis model for ERP in HANA it's obviously required to take care of this client modelling.
Our developers decided to handle this requirement by creating a session variable $$CLIENT$$ that can be assigned to a HANA user.
Whenever this user logs on to HANA this variable is set for this session and the current value is used in the analytic view, attribute view or wherever you used it.
For more information check the SQL reference manual at "SESSION_CONTEXT", "ALTER SESSION SET..." and "ALTER USER SET PARAMETER..."
regards,
Lars

Purging Client Variables - App Locks up

We have 5 CF7mx servers running - load balanced. We're using
SQL Server 2005 for our DB. We're using the DB for clientstorage.
One of the 5 CF boxes has this turned on --> Purge data for
clients that remain unvisited for 9 days. What we experience is
that every so often, all of our servers either get stuck on a
SELECT MAX @@Precision call, or a CDATA delete. When this occurs,
all we can do is end task jrun to bring them back to life. Any
suggestions? This problem followed us to our new data center, new
hardware, new infrastructure all around. A former coworker had seen
this at a previous job, and had noticed that the "purge every x
days" control seemed to be active on every server, even though it
was specified, "checked" only on one. We're seeing this as well. He
also recommended we set the "x days" to a longer period like 2
weeks, and do the cleanup on the DB side with a sql job for a
shorter timeframe. Thoughts?

I had no problems with MySQL 5.1 on CF8.0.1. However, I found
there were quite a few corners to turn when changing the datasource
for the client store. I followed the following steps:
1) Create a new database (called
client_data)using the following SQL script:
CREATE DATABASE client_data;
USE client_data;
/*Table structure for table cdata */
DROP TABLE IF EXISTS cdata;
CREATE TABLE cdata (
cfid char(64) NOT NULL,
app char(64) NOT NULL,
data text,
UNIQUE KEY id1 (cfid,app)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*Table structure for table cglobal */
DROP TABLE IF EXISTS cglobal;
CREATE TABLE cglobal (
cfid char(64) NOT NULL,
data text,
lvisit datetime NOT NULL,
KEY id2 (cfid),
KEY id3 (lvisit)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
2) Configure a datasource called
client_data in the datasources page in the Coldfusion
Adimistrator. Use the following settings:
Data Source Name:client_data
Driver:MySQL (4/5)
Database:client_data
Server:127.0.0.1
Port:3306
Username:root
Password:BKBK1432
3) In the Client Variables page in the Administrator, delete
any previous datasources used for client storage.
4) Restart Coldfusion.
5) In the Client Variables page in the Administrator, add
client_data as the store for client variables. Make sure its
radio-button is selected.
6) If necessary, change the value of the
clientStorage attribute in Application.cfm or the
this.clientStorage in Application.cfc to "client_data".

Coldfusion session/client variables?

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