Tuesday Jan 07, 2014

OBIEE 11.1.1: Load Testing Oracle Business Intelligence Enterprise Edition (OBIEE) 11g Using Oracle Load Testing (OLT) 12.x

Published whitepaper on Load Testing Oracle Business Intelligence Enterprise Edition (OBIEE) 11g Using Oracle Load Testing (OLT) 12.x) which can be found at: https://support.oracle.com/epmos/faces/DocumentDisplay?id=1611188.1

(Oracle Support Document 1611188.1)

Monday May 27, 2013

OBIEE web SSO with ADFS IdP SAMLv2


[Read More]

Wednesday Mar 13, 2013

Nohup obiee weblogic

To be able to start Weblogic admin server as a process running after the launching shell exits, the boot.properties in weblogic needs to be created. The following commands are the simplest way to achieve this with OBIEE:[Read More]

Wednesday Jan 16, 2013

OBIEE 11G Installation & Best practices BAPI access for SAP/BW data sources

INTRODUCTION SAP/BW DATA SOURCES SYTEM

SAP/BW integrates with BI tools via MDX (Multidimensional Queries), MDX is the de facto industry standard to query OLAP servers.

SAP/BW Server includes an MDX processor to directly query any BW INFOCUBE and INFOQUERY

SAP/BW supports multiple protocols to submit MDX requests:

With OBI EE 11g, both the XMLA adapter and the BAPI adapter are supported

Please Download the documention here
Please have a look at support article here (Doc ID: 1523417.1)

[Read More]

Tuesday Dec 11, 2012

OBIEE 11.1.1 - (Updated) Best Practices Guide for Tuning Oracle® Business Intelligence Enterprise Edition (Whitepaper)

Applies To: This whitepaper applies to OBIEE release 11.1.1.6, 11.1.1.7

Introduction: One of the most challenging aspects of performance tuning is knowing where to begin. To maximize Oracle® Business Intelligence Enterprise Edition performance, you need to monitor, analyze, and tune all the Fusion Middleware / BI components. This guide describes the tools that you can use to monitor performance and the techniques for optimizing the performance of Oracle® Business Intelligence Enterprise Edition components.

You can find new updated copy of OBIEE Tuning Guide Whitepaper on Support note OBIEE 11g Infrastructure Performance Tuning Guide (Doc ID 1333049.1)

Disclaimer: All tuning information stated in this guide is only for orientation, every modification has to be tested and its impact should be monitored and analyzed. Before implementing any of the tuning settings, it is recommended to carry out end to end performance testing that will also include to obtain baseline performance data for the default configurations, make incremental changes to the tuning settings and then collect performance data. Otherwise it may worse the system performance.


Tuesday Jun 05, 2012

OBIEE 11.1.1.5 or above: Admin Server unavailability is not impacting OBIEE tasks

Applies To: 11.1.1.5, 11.1.1.6

Admin Server unavailability is not impacting OBIEE tasks. By setting virtualize tag to true (in EM) to manage multiple LDAP providers, it is enabling failover and HA on authentication and authorization inside OBIEE. Following are the test cases used for testing impact on OBIEE, if Admin Server is not available:

 

a. Test 1: Admin Server crashes and impact on OBIEE

Scenario: All OBIEE components are up and running.

b. Test 2: Admin Server had not been started and impact on OBIEE.

Scenario: OBIEE Server bi_server1 is started, but Admin Server isn’t

For more details on each of the above test, click here to download the Test Results

Links to Official documentations below:  

http://docs.oracle.com/cd/E23943_01/bi.1111/e10543/privileges.htm#BIESC6077

http://docs.oracle.com/cd/E23943_01/bi.1111/e10543/privileges.htm#BABHFFEI

http://docs.oracle.com/cd/E23943_01/bi.1111/e10543/authentication.htm#BIESC6075  


Monday May 07, 2012

OBIEE 11.1.1 - Increase Timeouts in Oracle HTTP Server (OHS) plug-in (mod_wl_ohs.conf)

If you are seeing "Failure of server APACHE bridge" error when try to open large BIP report. This is due to your current Oracle HTTP Server (OHS) timeout parameters defined in plug-in file that are reaching amount of time the plug-in waits for a response to a request from WebLogic Server.

For each <Location> section in OHS file mod_wl_ohs.conf, set the following timeouts for example:

<Location /analytics>
      SetHandler weblogic-handler
       WebLogicCluster <servername>:9704
       WLIOTimeoutSecs 6000
       WLSocketTimeoutSecs 600
</Location>

# BI Publisher
<Location /xmlpserver>
     SetHandler weblogic-handler
     WebLogicCluster <servername>:9704
     WLIOTimeoutSecs 6000
     WLSocketTimeoutSecs 600
</Location>


 

Wednesday Apr 18, 2012

OBIEE 11.1.1 - Web catalog upgrade from 10g to 11g corrupted some user permissions

Web catalog upgrade from 10G to 11.1.1.3 or 11.1.1.5 or 11.1.1.6 corrupted some user permissions, this may cause slow user login time and also slowness in accessing the dashboard.

Resolution:

  • Cleanup Web catalog via instanceconfig.xml using the steps documented in "Validating the Catalog" in System Administrator's Guide for Oracle Business Intelligence Enterprise Edition.
  • Runcat cmd line commands to cleanup all permissions that appears to be Invalid.

Tip: It is recommended to run all above tasks each & every time content is delivered from a development environment into the production environment (e.g. weekly), as part of the OBIEE administrator's regular backup & maintenance of the catalog.

[Read More]

Wednesday Apr 04, 2012

OBIEE 11.1.1.6.0 - Import Metadata from Oracle Database is not working with BI Client installer

BI Client installer (version 11.1.1.6.0) does not install Oracle Database Client. Therefore for BI Admin tool client installations, the Oracle DB Client (11gR2) must also be separately installed on same windows machine.

Tip: If you install BI Client 32bit version, make sure to install Oracle Database Client 32bit version. Likewise If you install BI Client 64bit version then make sure to install Oracle Database Client 64bit version.


Thursday Mar 08, 2012

OBIEE 11.1.1 - BI Office Intermittent Timeout Errors

In OBIEE releases 11.1.1.5 / 11.1.1.6, if the BI Office Server is configured to connect to Presentation Services through Oracle HTTP Server (OHS), then you might see intermittent error messages that are caused by the timeout of a request. To work around this issue, increase the Keepalive timeout 50 or more.

Reference: http://docs.oracle.com/cd/E23943_01/relnotes.htm 


Tuesday Feb 28, 2012

OBIEE 11.1.1 - IBM JDK Tuning for WebLogic 11G under AIX 6.x

Modify setOBIDomainEnv.sh:

Each lines like:
        if [ "${JAVA_VENDOR}" = "IBM" ] ; then
                # 64-bit IBM JVM is the only JVM supported for AIX
                # assume to always use Managed server memory args for 64-bit IBM JVM
                SERVER_MEM_ARGS="-Xms2048m -Xmx2048m -Xmns512m -Xmnx512m -Xss2m -Xrs -Xgcpolicy:gencon -Xverify:none"
                export SERVER_MEM_ARGS

Glossary:
    -Xms<size>        set initial Java heap size
    -Xmx<size>        set maximum Java heap size
    -Xss<size>         set java thread stack size
    -Xrs                    reduce use of OS signals by Java/VM (see documentation)

    -Xmns<size>
      Sets the initial size of the new (nursery) heap to the specified value when using -Xgcpolicy:gencon. By default, this option is selected internally according to your system's capability. This option will return an error if you try to use it with -Xmn.
    -Xmnx<size>
      Sets the maximum size of the new (nursery) heap to the specified value when using -Xgcpolicy:gencon. By default, this option is selected internally according to your system's capability. This option will return an error if you try to use it with -Xmn.
    -Xverify:<option>
With no parameters, enables the verifier. Note that this is the default; used on its own, this option has no effect.

Additional parameters to review:

You can force the JVM to use large pages, which is more efficient memory management.
Java VM command line option: -Xlp64K
JVM Environment Entry: LDR_CNTLR =  “DATAPSIZE=64K@TEXTPSIZE=64K@STACKSPSIZE=64K”

You should also consider using huger pages.
PPC64 supports 4K(default) and 16M (although this is more likely to speed things up but unlikely solve your heap problem...)
General info for AIX and PPC:
http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=/com.ibm.aix.prftungd/doc/prftungd/large_page_ovw.htm
Java vm command line:
"-Xlp<size>
AIX: Requests the JVM to allocate the Java heap (the heap from which Java objects are allocated) with large (16 M pages, if a sizeis not specified. If large pages are not available, the Java heap is allocated with the next smaller page size that is supported by the system. AIX requires special configuration to enable large pages.

For more information about configuring AIX support for large pages, see http://publib.boulder.ibm.com/infocenter/aix/v6r1/topic/com.ibm.aix.prftungd/doc/prftungd/large_page_ovw.htm.
The SDK supports the use of large pages only to back the Java heap shared memory segments. The JVM uses shmget() with the SHM_LGPG and SHM_PIN flags to allocate large pages. The -Xlp option replaces the environment variable IBM_JAVA_LARGE_PAGE_SIZE, which is now ignored if set.
AIX, Linux, and Windows only: If a <size> is specified, the JVM attempts to allocate the JIT code cache memory using pages of that size. If unsuccessful, or if executable pages of that size are not supported, the JIT code cache memory is allocated using the smallest available executable page size."

You should also turn on verbose gc.
Java VM command line option:  –verbose:gc

Consider some of the following Java VM command line options (some IBM vm specific):
- -Xgcpolicy:subpool "Uses an improved object allocation algorithm to achieve better performance when allocating objects on the heap. This option might improve performance on large SMP systems"
- -Xcompressedrefs "Use -Xcompressedrefs in any of these situations: When your Java applications does not need more than a 25 GB Java heap. When your application uses a lot of native memory and needs the JVM to run in a small footprint."
- -Xcompactexplicitgc "Enables full compaction each time System.gc() is called."
- -Xcompactgc "Compacts on all garbage collections (system and global)."
- -Xsoftrefthreshold<number> "Sets the value used by the GC to determine the number of GCs after which a soft reference is cleared if its referent has not been marked. The default is 32, meaning that the soft reference is cleared after 32 * (percentage of free heap space) GC cycles where its referent was not marked." Reducing this will clear out soft  references sooner. If any soft referenced-based caching is being used, cache hits will go down but memory will be freed up faster. But this will not directly solve your OOM problem: "All soft references are guaranteed to have been cleared before the OutOfMemoryError is thrown.
The default (no compaction option specified) makes the GC compact based on a series of triggers that attempt to compact only when it is beneficial to the future performance of the JVM."



OBIEE 11.1.1 - How to use OBIEE Impersonate parameter for quick checks

If you quickly need to check a user permission issue, you can use the Impersonate parameter on the url. However, you have to issue two requests to get a report, you cannot do this in a single url:

Impersonation is "atomic" with authentication. It's not a "request" level parameter. You have to authenticate in "impersonated mode":

http://server:7001/analytics/saw.dll?Logon&NQUser=YourAdministrator&NQPassword=Admin123&Impersonate=TheUserToImpersonate

Then

http://server:7001/analytics/saw.dll?Go&Path=%2fshared%2ftests%2ftest1&Options=rmf&Action=print

Also, you need to make sure that the user "YourAdministrator" has the right permissions in 11g: oracle.bi.server.impersonateUser and possibly oracle.bi.server.queryUserPopulation


Monday Feb 20, 2012

OBIEE 11.1.1 - After complete system restarts, getting “Error 404 – Not Found” when accessing OBIEE URL

Getting “Error 404 – Not Found” when accessing OBIEE URL i.e. https://<server>:9704/analytics . Check whether the "analytics" deployment in WebLogic Server is in Active state in the console > Deployments. If not start the deployment.


Sunday Feb 19, 2012

OBIEE 11.1.1 - How to turn off EM centralized control

There is a flag in the central config file which can be used to turn off all of the EM central configuration. It is in user_projects\domains\bifoundation_domain\config\fmwconfig\biee-domain.xml. The flag is near the top; it says: centralConfigurationEnabled="true" . If you change this to "false", then none of the config files will be modified centrally.

(You will need to restart the managed server and BI System Components)

Important Note: Turning off EM centralized control for managing BI config files is NOT recommended.


Tuesday Feb 14, 2012

OBIEE 11.1.1 - Users are able to log in to the WebLogic Admin console, but not BI

Check if users are able to log in to WebLogic Admin console assuming you can still log in to the WebLogic Admin Console (and if you can start WebLogic, you should be able to login to the Admin Console using the credentials you used to start the server) you can then assign one of the LDAP users the WebLogic Global Admin Role and see if they are able to log in to the WebLogic Admin Console (http://biserver:7001/console). If they are able to log in to the WebLogic Admin console, but not BI, then the LDAP authenticator config is correct, but it may not be accessible to BI.

There are few things to check in this instance:
1) The Identity Store that contains your users may not be being exposed as an Identity Store to OPSS. The primary identity store must be set as the first one in the list of authenticators (note that this restriction is lifted from BI 11.1.1.5 using the virtualize=true configuration) – BI uses the User Role API from OPSS which will only pick up the first identity store from the list of authenticators when looking up users’ GUID, Profile Information, Roles etc. This is a prime cause of the scenario whereby a user can log into WebLogic Admin Console (hence demonstrating that the authentication part of logon is succeeding), but cannot log in to BI (because the identity store containing the user is not first in the list). Where more than one Authenticator is configured, in the general case the control flags should all be set to SUFFICIENT. This will have the effect of each one being tried in turn until authentication succeeds. If authentication is successful, no further authenticators will be tried; if none of the authenticators are able to authenticate the supplied credentials, the overall authentication process will fail.

N.B. on install, the DefaultAuthenticator is set to REQUIRED; if another authenticator is configured, the DefaultAuthenticator, if it is to be retained, must be set to SUFFICIENT or OPTIONAL instead. SUFFICIENT is the recommended setting, for the reasons outlined above.

2) Your users are authenticating correctly to LDAP, but there is a problem with the BI System User which prevents the BI Security Service from authenticating users. N.B. if you temporarily assign the WebLogic Global Admin role to a user to test this scenario, please remember to remove this as soon as you have completed testing or else you may find you’ve given one (or many, if you specify the role condition by group name match) of your users a lot more power than you intended them to have.

3) Clean up all the users/groups security in RPD that may already exist from upgraded 10g RPD (delete user from rpd if present) and perform GUID refresh again i.e. https://blogs.oracle.com/pa/entry/regenerating_user_guids