Report Server Performance related problem

Hi all,
We have a report which generates the output in PDF format. Our Report generates report of 2134 pages with some particular parameters.
If a user runs a 2134 long page report over the Web, is there a way to look at some of the pages rather than send all 2134 back to the browser? The output
should be in pdf format only. I have seen the parameter PAGESTREAM=TRUE, which works only with HTMLCSS,HTML output format only. Is there any work around for the pdf?
Thanks in advance..
regards,
srinivas.M

I can't access my server now but i have searched httpd.conf file under all my oracle directory
and i only changed the one under apache folder
the_machine_name with ip
I didn't ping myservername but it only helped me to change the url under submit query button.
It was directed to http://<machine_name>/reports/rwservlet? ...
after this
it is directed to to http://<machine_IP>/reports/rwservlet? ...

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Report server performance

Does anybody know
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(2) How is report server performance during formatting. we
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Regards

The reports team is working on this set of documentations.
The documentation will include benchmarks and tuning guide for the server.
Once they are ready for the 9i reports server, the team will publish it on OTN.

Reports Server 6. installation problem on NT

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I am trying to install Dev2k Reports server on NT4, SP3. I created the Report server service, configured it to start up service as my user account.
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hi Akshay!
Is there something in this log that looks fishy?
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Crystal Reports Server XI License problem

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Thanks for the information.
Actually we do not find "Central Management Console" in Start/Programme/Crystal Reports Server 2008/Crystal Reports Server 2008/.
We also tried using the http://webserver:8080/CmcApp/ by providing the correct hostname and also with the IP address; but we get a webpage not found error.
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Crystal Report Server 9 - licenses problem

I am using ASP with Crystal Report Server 9 in an inhouse web application which provides many online reportings.
Here is my problem : when the number of concurrent reporting request increases, the RAS could not respond. Check from IIS log and found the following error :
[ 2010-08-05 09:52:11 W3SVC1 168.83.0.31 POST /leasing_activities/gen_approval_form.asp |350|80041018|The_maximum_number_of_concurrent_licenses_has_been_exceeded. 80 - 168.81.101.21 500 0 0 ]
The RAS would then keep in a very high utilization and what I have to do is to either restart the RAS service or the RAS server in order to get it operating again.
Sometimes it affects the IIS (my guess) as users' front end program would also hang up. Note that my IIS and RAS resides in different servers.
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Is the problem ( high utilization and non-responsive ) caused by the licenses ?
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Is the problem ( high utilization and non-responsive ) caused by the licenses ?
It is probably a combination of running out of licenses and overwhelming the RAS Server.
Whether I need to purchase additional user licenses for the RAS or anything I could do to fix the problem ?
RAS 9 has been out of support for years now and licenses can no longer be purchased as far as I know.
If the projected number of users is about 150, do I need to buy each user a licence ( total 150 lcenses ) ? Is there any server license that could support such population of users ?
You will have to talk to sales to see about moving to a newer supported platform for that number of users.
Jason

Performance related problem

I have identified following problem in oracle.
I would like to explain it through an example for the understanding of exact problem
I created a view say ‘view_1’ and another view ‘view_2’ based on view ‘view_1’ there are some functions like sum involved in each view that’s why there was a need to make view on view … I kept on making views based on other views upto 5th level that is keeping the order my last view was view_5 that was based on view_4
Now when I run the query of view_5 I get the required result but when I query the last view e.g select * from view_5 the system goes into a very long wait state. I waited for more then 16 minutes but nothing happened so I had to cancel the query.
is there any limitation in oracle or how can i view statistics of and reasons of this wait state?
please help me

The biggest issue about the views that they are not designed for performance but for transperancy, easiness. Views can be of two types, mergeable and non-mergeable. Mostly, if the view is non-mergeable, its going to give a bad performance( not a strict rule though). So as you are using so many of them, there are chances that this thing is effecting you. Suggest you to post your query,its explain plan over here with full database version. Please use the { code } tag(without spaces) to do so.
HTH
Aman....

After upgrading AS to run Webutil, Reports Server is no longer found

Recently we update de configuration of Application Server to use the WebUtil features (FileTransfer, etc) but some clients can not view the reports (the PDF files generated and the previous html page where are passed de parameters to generate de PDF file paramform=yes <--- I mean this parameteter passed to RUN_REPORT_OBJECT_PROC )
The curious thing is that in NetScape it Works fine, but in MS Internet Explorer does not.
Initially we thought that was the problem, a configuration in the client, but after formatting the PC, the problem persists.
In the webutils log (after enable this capabilitiy) does not show anything abnormal:
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[setProperty()] Setting property WUC_SRV_LOGGING to 2
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[setProperty()] Setting property WUC_GET_LOCAL_PROPERTY to syslib.jacob.dll
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[getProperty()] Getting property WUC_GET_LOCAL_PROPERTY
192.168.0.244:desarrollo: 2006-sep-27 12:19:46.967 WUT[loadSettings()] Local properties file loaded
192.168.0.244:desarrollo: 2006-sep-27 12:19:47.248 WUT[setProperty()] Setting property WUC_GET_LOCAL_PROPERTY to syslib.JNIsharedstubs.dll
192.168.0.244:desarrollo: 2006-sep-27 12:19:47.248 WUT[getProperty()] Getting
In a similar topic we read that it could be a problem with the reports classpath, but why webutils configuration works in some clients and with others does not?
In the RUN_REPORT_OBJECT_PROC function instead using relative address for the reports servlet we changed for a complete adress, I mean
RUN_REPORT_OBJECT_PROC(repid,
'/reports/rwservlet')
replaced with:
RUN_REPORT_OBJECT_PROC(repid,
'http://ias.website/reports/rwservlet')
But the problem persists (we have the reports and forms services in the same server)
and after debugging the RUN_REPORT_OBJECT_PROC function, in this line
rep_status := report_object_status(report_message);
report_object_status returns null
Why happends this?
Could you help us? What information need to be posted to this? what else we need to do?
We configured webutils as mentioned in the Oracle® Forms Developer
WebUtil User’s Guide
Release 1.0.6
We're using MS Windows 2003 Server, Oracle AS 10g and Oracle DB 10g
The RUN_REPORT_OBJECT_PROC function (procedure) is the same what is mentioned in
http://www.oracle.com/technology/products/forms/pdf/10g/frmrepparamform.pdf
and the same that worked fine for a long time ago.

We added the following lines to webutiljini.htm
For IE
<PARAM NAME="BROWSER" VALUE="InternetExplorer">
<PARAM NAME="MAYSCRIPT" VALUE="TRUE">
For NetScape:
BROWSER="Netscape"
MAYSCRIPT="true"
And adding the frmwebutil.jar to the Reports Server ClassPath the problem was solved

SCOM 2012 R2 Report Server component install to SQL 2012 Sp1 error?

Hi All
Im having issues installing SCOM 2012 R2 Report Server component to a SQL 2012 Sp1 Server (which is a Windows 2012 R2 Standard server). Im trying to install to the SQL Default server instance, note that the server also has a named instance
which hosts the SCOM databases. SQL Reporting Services is up and running fine (can access the web urls etc). Im also using the SCOM install account wich has full SQL and SCOM Server admin rights for the install. Ive checked that the Firewall
is off locally on the SQL Server, Ive also checked that the existing SCOM components are all in a Healthy state in the SCOM console.
The installed version of SQL Server could not be verified or is not supported. Verify that the computer and the installed version of SQL Server meet the minimum requirements for installation, and that the firewall settings are correct. See the Supported
Configurations document for further information.
Ive attempted the install on a standalone SQL Server away from the SQL Server hosting the SCOM databases, but encounter the same error. The full SCOM MSI Installer log details are below, line that appears most relevant is below but unsure why
this would be the case (same account that I used for SQL install etc). Any help much appreciated! : )
Error: :getSQLInstanceVersion: Unable to find the SRS Instance Key: MSSQLSERVER
[11:51:46]: Debug: :CheckPrerequisites: IsComputerNameValidTitle: Passed
[11:51:46]: Debug: :
[11:51:46]: Debug: :**************************************************
[11:51:46]: Debug: :**************************************************
[11:51:46]: Debug: :<![CDATA[CheckPrerequisites:   Logic Type:and AvicodeAgentInstalled-x86: 0CheckPrerequisites:   Logic Type:and AvicodeAgentInstalled-x64: 0]]>
[11:51:46]: Debug: :
[11:51:46]: Debug: :CheckPrerequisites: AVIcodeAgentCheck: Passed
[11:51:46]: Debug: :
[11:51:46]: Debug: :**************************************************
[11:51:46]: Always: :CheckPrerequisites: Return Value 0
[11:51:46]: Always: :Entering Page: AdditionalPrerequisitesPage
[11:51:48]: Always: :Entering Page: ShortEulaPage
[11:51:48]: Always: :Displaying localized EULA for localization: en
[11:51:48]: Always: :Displaying Eula: C:\Users\opsmgr\AppData\Local\SCOM\Setup\en\eula_en_notice.rtf
[11:51:49]: Info: :Info:User has agreed to EULA.
[11:51:50]: Always: :Entering Page: SelectManagementServerForReporting
[11:52:08]: Info: :Info:Management Server matches the current version of setup.
[11:52:08]: Always: :Entering Page: SelectReportingInstance
[11:52:08]: Always: :SQL Server SRS Instance (escaped name) RS_MSSQLSERVER
[11:52:08]: Info: :Attempting to get the SSRS version from:
\\WDC-SYSSQL01\Root\Microsoft\SqlServer\ReportServer\RS_MSSQLSERVER:__NAMESPACE
[11:52:08]: Debug: :Path is
\\WDC-SYSSQL01\Root\Microsoft\SqlServer\ReportServer\RS_MSSQLSERVER\V11:MSReportServer_Instance
[11:52:08]: Always: :SRS instance on WDC-SYSSQL01. Version 11.0.3000.0.
[11:52:08]: Always: :No SRS instances on WDC-SYSSQL01.
[11:52:08]: Error: :getSQLInstanceVersion: Unable to find the SRS Instance Key: MSSQLSERVER
[11:52:08]: Info: :Info: WDC-SYSSQL01 SRS version =
[11:52:08]: Error: :Couldn't check SRS version: Threw Exception.Type: System.ArgumentException, Exception Error Code: 0x80070057, Exception.Message: Version string portion was too short or too long.
[11:52:08]: Error: :StackTrace:   at System.Version.TryParseVersion(String version, VersionResult& result)
   at System.Version.Parse(String input)
   at Microsoft.EnterpriseManagement.OperationsManager.Setup.ReportingComponent.CheckSRSVersion(String srsInstance, String requiredSRSVersion)
[11:52:11]: Info: :Attempting to check SRS version
[11:52:11]: Error: :getSQLInstanceVersion: Unable to find the SRS Instance Key: MSSQLSERVER
[11:52:11]: Info: :Info: WDC-SYSSQL01 SRS version =
[11:52:11]: Error: :Couldn't check SRS version: Threw Exception.Type: System.ArgumentException, Exception Error Code: 0x80070057, Exception.Message: Version string portion was too short or too long.
[11:52:11]: Error: :StackTrace:   at System.Version.TryParseVersion(String version, VersionResult& result)
   at System.Version.Parse(String input)
   at Microsoft.EnterpriseManagement.OperationsManager.Setup.ReportingComponent.CheckSRSVersion(String srsInstance, String requiredSRSVersion)
[11:52:28]: Info: :The user canceled setup
[11:52:28]: Always: :Begin: Property bag dump.
[11:52:28]: Always: :SetupStartTime = 26/03/2014 11:51:38
[11:52:28]: Always: :Collection ProtectedProperties (System.Collections.ArrayList):
[11:52:28]: Always: : [0] = ActionAccountPassword
[11:52:28]: Always: : [1] = DASAccountPassword
[11:52:28]: Always: :DefaultLogName = C:\Users\opsmgr\AppData\Local\SCOM\Logs\OpsMgrSetupWizard.log
[11:52:28]: Always: :DefaultLogPath = C:\Users\opsmgr\AppData\Local\SCOM\Logs
[11:52:28]: Always: :path = F:\Setup\AMD64\
[11:52:28]: Always: :setupexepath = C:\Users\opsmgr\AppData\Local\SCOM\Setup
[11:52:28]: Always: :ArchitectureIs64Check = True
[11:52:28]: Always: :OperationManagerAgentInstalled = 1
[11:52:28]: Always: :Collection ListOfSupportedComponents (System.Collections.ArrayList):
[11:52:28]: Always: : [0] = OMCONSOLE
[11:52:28]: Always: : [1] = OMSERVER
[11:52:28]: Always: : [2] = OMWEBCONSOLE
[11:52:28]: Always: : [3] = OMREPORTING
[11:52:28]: Always: :install = 1
[11:52:28]: Always: :installpath = C:\Program Files\Microsoft System Center 2012 R2\Operations Manager
[11:52:28]: Always: :EulaFilesPath = C:\Users\opsmgr\AppData\Local\SCOM\Setup
[11:52:28]: Always: :HealthServiceTypeId = AB4C891F-3359-3FB6-0704-075FBFE36710
[11:52:28]: Always: :hsPort = C51B7833-DA54-1653-D8FD-1A738EF8DED5
[11:52:28]: Always: :ServerBlockReason = A Operations Manager agent was found on this computer. Please remove the agent and then run Setup again.
[11:52:28]: Always: :ScreensLoaded = 1
[11:52:28]: Always: :Collection ListOfSelectedComponents (System.Collections.ArrayList):
[11:52:28]: Always: : [0] = OMREPORTING
[11:52:28]: Always: :OMREPORTING = 1
[11:52:28]: Always: :SelectDatabaseInstanceReloadScreenInformation = 1
[11:52:28]: Always: :ReloadPrerequisitesPageChoice = PrerequisitesProgressPage
[11:52:28]: Always: :LoadedPrerequisiteXmlFile = True
[11:52:28]: Always: :PrerequisitesCheckXMLLoaded = True
[11:52:28]: Always: :CountFilteredPrerequisites_Failed = 0
[11:52:28]: Always: :CountFilteredPrerequisites_Warning = 0
[11:52:28]: Always: :CountFilteredPrerequisites_PassedWithChoices = 0
[11:52:28]: Always: :CountFilteredPrerequisites_Passed = 10
[11:52:28]: Always: :PrerequisiteState = Passed
[11:52:28]: Always: :XmlFilteredPrerequisites_Passed : Begin XML property
[11:52:28]: Always: :<?xml version="1.0" encoding="utf-8"?><Root><Title TitleText="OMREPORTING"><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="memoryCheckTitle" descriptionBody="" descriptionTitle="ReportingMemCheckPassed" resolution="ReportingMemCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="ntfsCheckTitle" descriptionBody="" descriptionTitle="ntfsCheckPassed" resolution="ntfsCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="DriveSpaceCheckTitle" descriptionBody="" descriptionTitle="ServerDriveSpaceCheckPassed" resolution="ServerDriveSpaceCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="OSVersionCheckTitle" descriptionBody="" descriptionTitle="OSVersionCheckPassed" resolution="OSVersionCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="WindowsInstallerCheckTitle" descriptionBody="" descriptionTitle="WindowsInstallerCheckPassed" resolution="WindowsInstallerCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="RemoteRegistryCheckTitle" descriptionBody="" descriptionTitle="RemoteRegistryCheckPassed" resolution="RemoteRegistryCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="PendingRebootCheckTitle" descriptionBody="" descriptionTitle="PendingRebootCheckPassed" resolution="PendingRebootCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="ActiveDirectoryCheckTitle" descriptionBody="" descriptionTitle="ActiveDirectoryCheckPassed" resolution="ActiveDirectoryCheckResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="IsComputerNameValidTitle" descriptionBody="" descriptionTitle="IsComputerNameValidPassed" resolution="IsComputerNameValidResolution" /><Detail state="Passed" image="pack://application:,,,/SetupChainerUI;component/GreenCheck.png"
name="AVIcodeAgentCheck" descriptionBody="" descriptionTitle="AVICodeAgentCheckPassed" resolution="AVICodeAgentCheckResolution" /></Title></Root>
[11:52:28]: Always: :End XML property
[11:52:28]: Always: :ManagementServer = WDC-SYSOPS01.landmarc.local
[11:52:28]: Always: :DefaultSDKMachine = WDC-SYSOPS01.landmarc.local
[11:52:28]: Always: :UserCanceledInstall = 1
[11:52:28]: Always: :InstallSuccess = 1
[11:52:28]: Always: :End: Property bag dump.
[11:52:28]: Debug: :CEIP disabled. CEIP data will NOT be sent.
[11:52:28]: Always: :Application Ended: Successful
[11:52:28]: Always: :
[2014-03-26T11:52:28.4724357+00:00]: Always: Trace Session Ended

Hi,
According to the error message:
[11:52:11]: Error: :getSQLInstanceVersion: Unable to find the SRS Instance Key: MSSQLSERVER
[11:52:11]: Info: :Info: WDC-SYSSQL01 SRS version =
[11:52:11]: Error: :Couldn't check SRS version: Threw Exception.Type: System.ArgumentException, Exception Error Code: 0x80070057, Exception.Message: Version string portion was too short or too long.
The issue is SQL report server database related, I would like to suggest you create a new report database for SCOM and then check the reuslt. Please refer to the below links and follow it to set up SCOM 2012 R2:
http://blogs.technet.com/b/kevinholman/archive/2013/01/16/opsmgr-2012-sp1-quickstart-deployment-guide.aspx
In addition, here is thread for your reference also:
http://social.technet.microsoft.com/Forums/en-US/3f883b7f-5a33-49f0-a40d-f3311e68609d/unable-to-connect-to-the-data-access-service-installing-report-server?forum=operationsmanagerreporting
Regards,
Yan Li
Regards, Yan Li

Reports Server in the oracle9ias R2

Hello, Does anybody know how can I call a Report (a .REP file) from a HTML Link?
I was looking for the cgicmd.dat file, because I read in the documentation that I have to write the description of my report there, but this file doesn´t exist in the installation of my application server.
I can start the report server without any problem from the OEM web site.
Can somebody help me?
Regards,
Sergio

Our developers mostly call from an HTML page with a url that looks like:
http://yourserver:7778/reports/rwservlet?reportname
The line above assumes the entry is present in the cgi file. If it is not, then you just include all the other parameters in the url - things like desformat, destype, etc.

SSRS Reporting Server system requirements

Where can I get the system requirements for a SSRS server that is a standalone reporting server. It's going to pull from databases on other servers, so this won't be running any heavy local databases. Could be up to 600 users. Would this just be
the SQL 2008 R2 requirements?

Hi Jlkansascity,
Based on your scenario, the SQL Server 2008 R2 Reporting Services can absolutely meet your requirement. For the Hardware and Software Requirements for Installing SQL Server 2008 R2, please see:
http://msdn.microsoft.com/en-us/library/ms143506(v=sql.105).aspx
However, the report server performance is affected by a combination of factors that include hardware, number of concurrent users accessing reports, the amount of data in a report, and output format. For more information about tools and guidelines about report
server performance, please see the
Planning for Scalability and Performance with Reporting Services as Vision2040 posted above.
Hope this helps.
Regards,
Mike Yin
TechNet Subscriber Support
If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback
here.

Re-scheduling reports when Report Server fails?

Is there a method to re-schedule previously cheduled reports in the scenario that for instance, the report server fails for whatever reason? My scenario is that I had a report server have a problem overnight and the reports that were scheduled did not execute. Is there a fairly straight forward way to identify and reschedule the reports that did not run?
Thanks
Marc

There might be a way. When you schedule a report through CMC under Recurrence you have an option "Number of retries allowed" and "Retry interval in seconds". Set the first parameter to be 1. If the report server fails overnight, then what you can do is set the interval seconds to be a big number, so that the next retry would be in the morning when someone would have restarted the server.
- Noman Jaffery

Help....Sufferring from Performance realted problem...!

Hi
I am doing a project, a java desktop application. I am suffering from performance related problem in proj. Actually there is one jPanel(inside jInternalFrame, which is obvious inside main frame) which contains around 30 labels + 30 TextArea fields + 2 buttons(huge amount of GUI components placed on that), and it is too large to be fit into a desktop screen. that's why i have used a jScrollpane and placed jPanel on that. But now major problem is whenever i run a project it takes too much time, around 4 to 8 minutes. I think it is just because of huge amount of GUI components are placed in that jPanel which is placed inside jScrollpane & i think that jScrollPane is a lightweight component. But then 4-8 mins is a too much time to load a project. Can you tell me that is there any other way to put a large form inside a fixed (small) area without affecting performance of project.
In short i want to put a too many swing components inside a fixed area. Is there any other way apart from using jScrollPane?
What should i do in this case? Plz reply....
Thanks.

It should not take 4-8 minutes to create a GUI. Maybe 4-8 seconds. You have some other problem you haven't described.
If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.
Don't forget to use the Code Formatting Tags so the posted code retains its original formatting. That is done by selecting the code and then clicking on the "Code" button above the question input area.

Bind to report server problem

hello all
please i want your help of my case that iam trying to run areport from aform both are (10g).
the problem is when calling the report from a button in aform with this code in the ''when_button_pressed'' trigger
web.show_document('http://localhost:8889/reports/rwservlet?&report=c:\MODULE2.jsp&destype=cache&desformat=PDF&userid=scott/tiger@ahmad');
it generates for me aweb page with an error (REP-51002: BIND TO REPORT SERVER FAILD).
The advise presented from reports builder help is to make sure that the Reports Server is running and that the Reports Server name is correct.
so i make from run the following test ''rwserver'' it gives me aprompt with a message (please consult the installation guides for how to setup and run this program).
so please please help find the solution.
note: when i try to run the report from the report builder it works good and generates the report properly both paper layout or web layout.

Thank u so much rajesh for your advises and help.
i have tried your steps you have written in the last theared on my pc and on another pc has the same (10 g release) and project and i got the following results:
1.For the scond pc evry thing was good and works properly. when performeing the command (rwserver server= rep_server) it intializes the report server and starting it very well and calling a report from aform goes well. and when running your form REPORT_SERVER_LIST.fmx it gives me the results for list of rep servers started.
But on my pc which has the problem when running the command (rwserver server= rep_server) it starting the rep server for a 1 or 2 seconds then quickly shutdown the report server alone.
when trying again and again when starting the rep server it gives a windos error msg says (connot delete file ''rep_repservername'') and shut down the rep server.
can u please rajesh explain for me wy it is happening?
i have tried to solve the problem so i vave opened the (Devhome\reports\server\) and and i found the reports servers files thier. i have recognised that that those files is (.dat) files and was considered the (Windos media player 10) as the recomended program to open . Do you think Rajesh that the (Windos media player 10) desabling the report servers and shutdown it??? becuase i have so that no recomended progrom to open in the good pc.
please rajesh help>>>.
ahmad salem

Report server run problem (urgent plz)

i am using developer9i, xp opereting system but i am not able to run report server . infact i dont know where report server reside and how configure report server. otn discussion forum gave me below instructions but i need step by step detail to run report server.
pls help me.
i want to see (Please reffer to Note:204538.1 on
Metalink ) but i could not access metalink.
registration does not alow me. i have no country on
country list and no Support Identifier (CSI, SAC,
Access Code etc.) . but i need access.
please help me. access with path
thanks
mostafizDear see this information this is metalink information
Note:204538.1
Subject: Common Reasons & Troubleshooting: "Unable to communicate with the Reports Server"
Type: BULLETIN
Status: PUBLISHED
Content Type: TEXT/X-HTML
Creation Date: 22-JUL-2002
Last Revision Date: 08-MAR-2005
PURPOSE
========
The main purpose of this document is to list the known causes of the "Unable to
communicate with the Reports Server" error. The terms Reports Server, CGI,
Reports Servlet are also described briefly for a better explanation of this error scenario.
This document includes the following sections :
I. Brief summary on the architecture of Reports Server, CGI and Reports
Servlet
II. Sources of errors encountered when running a report with Reports Server
III. How the CGI (or the Reports Servlet) communicates with the Reports
Server
IV. Possible reasons which lead to "Unable to communicate with the Reports
Server" error.
1) Reports Server is up and running
2) tnsnames.ora and sqlnet.ora problems
3) Effect of parameter "ORACLE_HOME"
4) Effect of parameter "maxconnect"
5) Passing very large parameters to reports server
6) A case specific to OAS 4.0.8.2
7) A case specific to WEBDB version 2.1.0.9.3
V. References
I. Brief summary on the architecture of Reports Server, CGI and Reports Servlet
=================================================================================
In order to understand the causes of the error "Unable to communicate with the
Reports Server", let's first briefly review the Reports Runtime Engines, Reports
Server, the Reports CGI, and Reports Servlet architecture.
There are 4 important layers in Reports Server architecture which should be
understood in order to clearly understand the error "Unable to communicate with
the Reports Server" :
1) The Runtime Engines : This is the main layer where the reports are actually
executed. On unix systems there are "rwrun60" and on NT systems there are
"rwrun60.exe" processes.
2) The Reports Server : The Reports Server recieves the job request and queues
it. When one of its runtime engines becomes available, it sends the
command line to that runtime engine for execution. On Unix systems it is
the "rwmts60" executable and on NT systems it is "rwmts60.exe".
3) The Reports CGI : The Reports Web CGI passes the request to the Reports Server.
The Reports CGI or Servlet converts the request to a command line that can be executed by the Reports Server and
submits it to the specified Reports Server. On Unix platforms this executable
is "rwcgi60" and on NTs it is "rwcgi60.exe.
4) The Reports Servlet : Its functionality and function is just the same as "Reports CGI", but it is
a program written in Java as difference to the CGI program (which is
written in C programming language).
The Reports Server may be running on the same server with the CGI program (or
servlet) OR may reside totally on another machine which does not necessarily have
the same Operating System. For instance CGI may reside in a Windows NT machine
while the Reports server may reside on a Unix box, or any other combination with
Unix-Linux-NT-2000, etc.
The reports are called with a URL similar to below with the CGI :
http://fully.qualified.server.name:PORT/dev60cgi/rwcgi60.exe?server=<REPSERVER>&other_parameters=...........
where fully.qualified.server.name is the name of the server where the Reports CGI
reside, and <REPSERVER> is the name of the server.
II. Sources of errors encountered when running a report with Reports Server
============================================================================
The Reports Web CGI (or the Reports Servlet) makes a call to the Reports Server
and asks it to place the output into some destination (defined by DESTYPE and
DESNAME parameters), then gives back the necessary response to the calling
program. For example if the DESTYPE is "cache", then the Reports server generates
the report to a file in a temporary place and gives it back to CGI and the CGI gives
it back to the calling program. Otherwise, if the DESTYPE is "file", the Reports Server
generates the report output to the requested file and the CGI replies back the
following message : "Report output was successfully written to requested
destination.".
If there is any error in this process, the related error message is returned. The
possible sources of errors can be categorized as follows :
1) The errors that are returned from Reports Server; like the Reports Server can
not find the requested RDF file or the report may be run to file and the
directory where the reports output is asked to be placed does not occur or
similar errors. (Usually the REP-XXXX errors)
2) Another possible cause of error is the errors returned by the RDBMS to the
Reports Server, for example a table not found error or things like that. Of
course from the CGI point of view these errors are again transmitted from the
Reports Server but in fact the error originates from the RDBMS. (Usually the
ORA-XXXX errors)
3) Another possible cause of errors is the CGI itself, for example when the CGI
executable can not connect to the requested Reports Server, then we get the
famous "Unable to communicate with the Reports Server". In this document we will
diagnose the common reasons of this last error.
III. How the CGI (or the Reports Servlet) communicates with the Reports Server
===============================================================================
Having said that "Oracle Reports Server CGI - Unable to communicate with the
Reports Server." error is returned back from the CGI itself, let's discuss the
issue of how the Reports CGI connect to the Reports Server. The name of the
Reports Server given in the URL with "server=....." parameter is, in fact, just
a special tnsnames alias, similar to aliases for database connect strings. As it is
important for the CGI to resolve the alias, the CGI needs to know the HOST name (or the
IP) of the machine where the Reports Server is running and the port on which the
Reports Server is listening. So a typical Reports Server alias is defined as follows :
REP60_<MACHINE>=(ADDRESS = (PROTOCOL = tcp)(HOST = <MACHINE>)(PORT = <PORT>))
This is defined in tnsnames.ora file, and the sqlnet.ora file is also used in
the name resolving operation.
IV. Possible reasons which lead to "Unable to communicate with the Reports Server" error.
==========================================================================================
The possible reasons for the "Unable to communicate with the Reports Server" error :
1) Reports Server is up and running :
Make sure that the Reports Server is really running on the specified server
and listening on the specified port. For details have a look at above
explanations for tnsnames alias of the reports server. And because of this the
CGI could not establish a connection to the Reports Server.
2) tnsnames.ora and sqlnet.ora problems :
As described above, the CGI resolves the details for the reports server using
the "tnsnames.ora" and "sqlnet.ora" files. There may be a problem with them,
here are the possible configuration problems :
a) There is no alias in the tnsnames.ora file for this Reports Server
b) The CGI looks into the wrong directory for the "tnsnames.ora" and "sqlnet.ora"
files. By default the CGI checks the $ORACLE_HOME/net80/admin directory for
these scripts, where the $ORACLE_HOME is the home of the Forms & Reports
installation. Please note that in a typical 9iAS 1.0.X installation there
are two ORACLE_HOME's, one is for the iAS and the other is for the tools,
usually the home for the tools is a directory with name "806" on NT and
"6iserver" on unix systems. By defining TNS_ADMIN in the environment, one
can override the search path for these two files.
The TNS_ADMIN variable can be defined in one of the following places :
i) In the environment : On MS Windows platforms check the "Settings
--> Control Panel --> System". On NTs check the environment TAB and in
Win2K systems check the "Environment Variables" button on Advanced tab.
ii) In "6iserver.conf" file. Details are as follows : The main configuration
file for Apache server is "httpd.conf" file which resides in
$IAS_HOME/Apache/Apache/conf directory. In this file there is a line to
include "oracle_apache.conf" and in this "oracle_apache.conf" file
there is a line to include "$ORACLE_HOME/conf/6iserver.conf" file. And
in this file the TNS_ADMIN variable could be defined as follows :
SetEnvIf Request_URI "rwcgi60" TNS_ADMIN=c:\orant\network\ADMIN
Please note that by defining it this way, the TNS_ADMIN will only be defined
for "rwcgi60" calls, so the other parts of the 9iAS will not be affected by
this setting.
c) In sqlnet.ora the "names.default_domain" is set but in tnsnames.ora the
domain is not defined in the alias description. For example if the
"names.default_domain=world" is present and active in "sqlnet.ora" file
then in the "tnsnames.ora" the alias of the reports server should also have
the ".world" extension appended at the end. And another cause is of course
the vice versa for this. If there is no "names.default_domain" is defined
in the "sqlnet.ora" then the alias in "tnsnames.ora" should not have the
domain extension.
Another important point that should be checked is, if TNS_ADMIN is defined
as described above then the search path is as follows, first the directory
defined by TNS_ADMIN is searched, if the "tnsnames.ora" file is not found in
this directory then $ORACLE_HOME/net80/admin is checked. (And on unix systems
/var/opt/oracle is also checked). These directories are only checked if the file
is not present, so if the "tnsnames.ora" file is present in TNS_ADMIN directory
but the alias is not present, then the other directories are not checked at all.
Let us assume that the tnsnames.ora file is present in the TNS_ADMIN directory but
there is no "sqlnet.ora" files here, then the sqlnet.ora file is checked in
$ORACLE_HOME/net80/admin directory, which could cause the same problem if the
"names.default_domain" is defined in this file.
All the above will result in, CGI to unable to resolve the alias in tnsnames.ora
file so it will not be able to establish a connection to the Reports Server.
3) Wrong "ORACLE_HOME" setting :
Wrong ORACLE_HOME setting. This is usually the case for Reports Servlet,
because the environment settings are defined in "jserv.properties" file for the
servlets and the setting here will effect both the Reports Servlet and the
setting for Oracle JSP and other servlets. So the other servlets or Oracle JSP
may need to set ORACLE_HOME to home of HTTP server while the reports server needs
it to be set to the TOOLS_HOME directory. In this case the best alternative is
not to set ORACLE_HOME in this directory and leave it to registry or defined the
ORACLE_HOME in "6iserver.conf" file just like the TNS_ADMIN defined above. For
details please have a look at the following document :
Note 179609.1 "Getting an error Unable to communicate with the Reports Server
using RWSERVLET"
4) Effect of parameter "maxconnect" :
Another common case for this error is that the CGI request reaches the Reports Server but
the Reports Server refuses connection. The main cause for this case is, that the Reports Server
configuration parameter "maxconnect" is defined too low, there are long running reports on the
server or the server is too busy at that time. Usually a second try some
later time results in a successful connection. If this is the case, the end user
may think that the problem is occasional. For details on this case please
have a look at the following document :
Note 125265.1 "Unable to communicate with the Reports Server"
5) Passing very large parameters to reports server :
Another known reason for this error is, if you are passing large parameters
to the Reports Server which exceeds sqlnet transmission blocks then the request may
end up with this error. To test it try with small parameter values. If you hit
this case, the solution is to increase the SDU (Session data unit size) and the TDU
(Transport unit data size) parameters in tnsnames.ora file, for details please
have a look at the following document :
Note 197358.1 "Passing large parameters to Reports show up a Reports Server
error"
6) A case specific to OAS 4.0.8.2 :
If you are using OAS instead of iAS, and the error appeared after
upgrading to 4.0.8.2 then this is caused because the 4.0.8.2 is using RSF
(Required Support Files) version 8.1.6 and the Reports 6i is using 8.0.6 and the
two could not reside in the same ORACLE_HOME directory. So the solution for this
problem is to create a new batch file and use it from which the actual CGI
executable is called. For details please see the following document :
Note 116754.1 "After applying OAS 4.0.8.2 CGI and Cartridge cannot communicate
to report server"
7) A case specific to WEBDB version 2.1.0.9.3 :
Another known case for this error is with WEBDB version 2.1.0.9.3 or less.
If you are using these old versions of WEBDB as HTTP listener, please have a
look at the following document :
Note 95426.1 "URL Not Found When Calling Oracle Developer Report from WebDB Site"

On Windows you can create a Report Services:
rwserver -install server=repserverYou have to choose different names for all servers, like your collegue cannot create a server with the same name. You can start/stop this Report server in Services (control panel). Configuration files can be found under $ORACLE_HOME/reports/conf
Martin

SSRS Report queries begin running slowly, have to stop and start report server to restore performance

We have had a production issue crop up twice now where reports begin running slowly seemingly at random.
When this happens we can see from running SQL Profiler that the report queries are taking an extremely long time to execute. The same queries when run directly in management studio run quickly.
Initially I suspected parameter sniffing, and tried using OPTION (RECOMPILE) in the reports, as well as clearing out the particular query from the plan cache and running the SQL in SSMS to try and get a better plan etc but no amount of jiggery pokery by
me could get the queries to run any faster.
The really weird thing - is that stopping and starting the report server via the reporting services configuration manager instantly cures the problem.
I'd really love to know - why this might be? Is it something to do with the report server closing and re-opening its connections to the database? That's the only sort of thing I can think of...any ideas? Anyone? Any suggestions would be much appreciated.
LucasF

Hi LucasF,
In your scenario, usually we can monitor the execution log in Report Database. If you run below query, you can get the results how long the report takes to render (TimeRendering), how long to process the report(TimeProcessing) and how long to retrieve data
from Database(TimeData). You can check the starttime and endtime to know the total time for executing a report.
SELECT TOP1000 *FROM[ReportServer].[dbo].[ExecutionLog2]
More details information, please reference to similar thread below:
Steps for troubleshooting a slow SSRS 2014 server
Troubleshooting Reports: Report Performance
In SQL Server Reporting Services, a job will be created by SQL Server Agent if any of the following processes is underway:
query execution on a remote or local database server
report processing
report rendering
To cancel a job that is running on the report server, we can cancel the job directly or reduce the report execution time-out value in the SQL Server Management Studio and then will stop query execution. Please refer to the steps below:
Open SQL Server Management Studio, and connect to "Reporting Services".
Under the Report Server node, right-click on the "Jobs" folder and select "Refresh". Then, right-click on "Jobs" again and click "Cancel All Jobs".
Right-click on the Report Server node and open the "Server Properties" dialog.
Click the "Execution" option, and set the "Limit report execution to the following number of seconds:" to a much smaller number. After this issue is resolved, this configuration should revert to the previous state.
Reference:
Managing a Running Process
Setting Time-out Values for Report and Shared Dataset Processing
In addition, we can also use the KILL Transact-SQL statement to terminate a normal connection by terminating the transactions that are associated with the specified session ID. For the details information, you can refer to:
KILL (Transact-SQL)
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

Report Server Performance related problem

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