My Oracle ACE Trophy arrived
Today I received a small package with a warning label "Please handle with care - Glass", inside was my Oracle ACE Trophy :-)
Looks cool on my desk :-)
Friday, March 4, 2011
Tuesday, March 1, 2011
Why you should check the default grants to PUBLIC
Today something Oracle Database Security related: Why you should have a look on the default grants to PUBLIC in an Oracle Database.
Just a small showcase:
Now we have to open 2 sessions to the Database, one connected with the Application User EVIL and one with the Application User FRIENDLY.
In the session with the user EVIL we execute following SQL statement:
In the second session with the user FRIENDLY we try now to run select on the table APP_USER.T1:
In the above example are clearly demonstrated two major problems:
The above example shows clearly that we have to be careful with the default grants to PUBLIC in an Oracle Database.
Above shown example were executed under Oracle 11.1.0.7.0 and Oracle 11.2.0.1.0.
Just a small showcase:
- One Application Schema APP_USER which owns some tables
- One Application related Role APP_READ to which grant select on APP_USER.<TABLENAME> were given
- One Enduser named EVIL :-) which got create session and hold the APP_READ role
- One Enduser named FRIENDLY :-) which got create session and hold the APP_READ role
-- First lets create the Application Schema APP_USER create user APP_USER identified by mysecrectpassword; grant connect, create table to APP_USER; create role APP_READ; -- Secondly create the Enduser EVIL create user EVIL identified by evilpassword; grant connect, app_read to EVIL; -- Thirdly create the Enduser FRIENDLY create user FRIENDLY identified by friendlypassword; grant connect, app_read to FRIENDLY; -- Connect with the Application Schema APP_USER -- Create one table -- and asign the select right to the Application Role APP_READ conn app_user/mysecretpassword create table t1 as select * from all_objects; grant select on t1 to APP_READ;
Now we have to open 2 sessions to the Database, one connected with the Application User EVIL and one with the Application User FRIENDLY.
In the session with the user EVIL we execute following SQL statement:
conn evil/evilpassword
exec sys.dbms_snapshot.BEGIN_TABLE_REORGANIZATION('APP_USER','T1');
In the second session with the user FRIENDLY we try now to run select on the table APP_USER.T1:
conn friendly/friendlypassword select * from APP_USER.T1;The session from the user FRIENDLY is not responding :-( The session from user FRIENDLY will only responding when we are running following SQL Statement in the session of user EVIL:
-- Session of user EVIL
exec sys.dbms_snapshot.END_TABLE_REORGANIZATION('APP_USER','T1');
-- Some errors will come up, as the used table
-- have not a materialized view log
ERROR at line 1:
ORA-23413: table "APP_USER"."T1" does not have a materialized view log
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95
ORA-06512: at "SYS.DBMS_SNAP_INTERNAL", line 703
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2811
ORA-06512: at line 1
In the above example are clearly demonstrated two major problems:
- Even with a create session privilege you have too many privileges through the default grants to PUBLIC
- The Procedure dbms_snapshot.BEGIN_TABLE_REORGANIZATION takes every table on which I got a select right, no matter if its just a normal table
The above example shows clearly that we have to be careful with the default grants to PUBLIC in an Oracle Database.
Above shown example were executed under Oracle 11.1.0.7.0 and Oracle 11.2.0.1.0.
Saturday, February 19, 2011
Oracle Reports 11.1.1 Reports Configuration Error
The error message just state that while executing the command "opmnctl startproc ias-component=ReportsServer_<servername>_<instance>" an error occurs. If you check the corresponding Install Logfile, you will not find something really usefull. Only stuff like "failed to start a manage process after the maximum retry limit".
Only a look in the Reports Logfile will give you a hint whats the problem :-) The Reports Logfile you can find under $MW_HOME/<instance>/diagnostics/logs/ReportsServerComponent/ReportsServer_<servername>_<instance>/rwserver_diagnostic.log
This error message points to a problem with the network, as Oracle Reports is using a multicast mechanism to publish his Reports Servicename into the network.
Just set your default gateway and retry after the changes the configuration step which has been failed.
Thursday, February 17, 2011
Percentage used of Tablespaces
I regulary have disucssions with colleagues what is the used percentage of a tablespace in an Oracle Database, my reply is normally "it depends :-)". Most of people rely on tools like Grid Control and so on, but these tools are showing only the percentage usage with a scope of the moment.
Lets assume we have a tablespace with one datafile. The datafile is created with an initial size of 100 MB and maxsize of 1024 MB. Now we fill up the datafile with some tables which all together are using 90 MB. So the normal tools will show us that the tablespace is used for 90%. Thats correct for the moment, but we have to consider that the datafile can grow until 1024 MB. When we consider this we come to:
(90 MB / 1024 MB) * 100 = 8.78 %
A percentage used of 90% versus 8.78% sounds a little bit different :-)
Below is a small script, which consider the maxsize option of datafiles for a tablespace, so that you can see the actual percenatge usuage and the percentage usage for the possible maxsize:
Lets assume we have a tablespace with one datafile. The datafile is created with an initial size of 100 MB and maxsize of 1024 MB. Now we fill up the datafile with some tables which all together are using 90 MB. So the normal tools will show us that the tablespace is used for 90%. Thats correct for the moment, but we have to consider that the datafile can grow until 1024 MB. When we consider this we come to:
(90 MB / 1024 MB) * 100 = 8.78 %
A percentage used of 90% versus 8.78% sounds a little bit different :-)
Below is a small script, which consider the maxsize option of datafiles for a tablespace, so that you can see the actual percenatge usuage and the percentage usage for the possible maxsize:
set linesize 200 col name format a20 select (select tablespace_name from dba_tablespaces where tablespace_name = b.tablespace_name ) name ,round(kbytes_alloc/1024, 2) mbytes ,round((kbytes_alloc-nvl(kbytes_free,0))/1024, 2) used ,round(nvl(kbytes_free,0)/1024, 2) free ,round(((kbytes_alloc-nvl(kbytes_free,0))/ kbytes_alloc)*100, 2) pct_used ,round(nvl(largest,0)/1024, 2) largest ,round(nvl(kbytes_max,kbytes_alloc)/1024, 2) max_size ,round(decode(kbytes_max,0,0,((kbytes_alloc-nvl(kbytes_free,0))/kbytes_max)*100),2) pct_max_used ,(select extent_management from dba_tablespaces where tablespace_name = b.tablespace_name) extent_management ,(select segment_space_management from dba_tablespaces where tablespace_name = b.tablespace_name) segment_space_management from (select sum(bytes)/1024 Kbytes_free, max(bytes)/1024 largest, tablespace_name from sys.dba_free_space group by tablespace_name ) a ,(select sum(bytes)/1024 Kbytes_alloc, sum(maxbytes)/1024 Kbytes_max, tablespace_name from sys.dba_data_files group by tablespace_name union all select sum(bytes)/1024 Kbytes_alloc, sum(maxbytes)/1024 Kbytes_max, tablespace_name from sys.dba_temp_files group by tablespace_name )b where a.tablespace_name (+) = b.tablespace_name order by 2;
And the result should look like as follows:
NAME MBYTES USED FREE PCT_USED LARGEST MAX_SIZE PCT_MAX_USED EXT_MANAGE SEGMENT_SPACE ------------ ---------- ---------- ---------- ---------- ---------- ---------- ------------ ------------ ---------- TOOLS 10 .062 9.93 .62 9.93 65535.96 0 LOCAL AUTO DRSYS 20 12.56 7.43 62.81 7.18 65535.96 .02 LOCAL AUTO USERS 25 7.06 17.93 28.25 17.93 65535.96 .01 LOCAL AUTO INDX 25 .06 24.93 .25 24.93 65535.96 0 LOCAL AUTO XDB 103.75 103.5 .25 99.75 .25 65535.96 .16 LOCAL AUTO TEMP 256 256 0 100 0 0 0 LOCAL MANUAL UNDOTBS1 636 85.31 550.68 13.41 189.93 32768 .26 LOCAL MANUAL SYSAUX 1024 480.68 543.31 46.94 502.87 1024 46.94 LOCAL AUTO SYSTEM 1024 675.31 348.68 65.94 347.93 65535.96 1.03 LOCAL MANUALUnder the column PCT_MAX_USED you can see the percentage usage in consideration with the maxsize of the datafile(s) and under the column PCT_USED you can see the actual percentage usage calculated according to the actual datafile(s) size.
Monday, February 7, 2011
Oracle WebCenter Suite 11g WebCast available
The Oracle WebCast "WebCenter Suite 11g Release 1 PS3 (11.1.1.4.0) - The Platform for the Modern User Experience" is available in case you miss the LiveStream on 2nd February 2011.
Just click here :-)
Just click here :-)
Wednesday, February 2, 2011
Pre-built Virtual Machine for Oracle WebCenter Portal Framework 11gR1 PS3 (11.1.1.4.0) available
Since a few day the latest Oracle WebCenter Suite is available (see my post from 25th Januar 2011) and now a pre-built Virtual Machine with a complete WebCenter 11g R1 PS3 (11.1.1.4.0) is available in the Oracle Technology Network (OTN) under the link http://www.oracle.com/technetwork/middleware/webcenter/downloads/owcs-portalfw-vbox-284132.html.
This Pre-Built Virtual Machine is for the Open-Source Product Oracle Virtual Box (http://www.oracle.com/technetwork/server-storage/virtualbox/overview/index.html) and contains following:
Happy dowloading and enjoy the new User Interaction functionality with WebCenter :-)
This Pre-Built Virtual Machine is for the Open-Source Product Oracle Virtual Box (http://www.oracle.com/technetwork/server-storage/virtualbox/overview/index.html) and contains following:
- Oracle Enterprise Linux 5
- Oracle XE Database 10.2.0.1.0
- Oracle WebLogic Server 10.3.4.0
- Oracle WebCenter Portal Framework 11gR1 PS3 (11.1.1.4.0)
- JDeveloper 11.1.1.4
- Oracle WebCenter Extension for JDeveloper (11.1.1.4.0)
Happy dowloading and enjoy the new User Interaction functionality with WebCenter :-)
Thursday, January 27, 2011
More Fusion Middleware 11.1.1.4.0 Components available
I just discover that on the Oracle Edelivery Website http://edelivery.oracle.com/ are more Oracle Fusion Middleware 11.1.1.4.0 Components available for download, but unfortunally right now only for 32-bit Operating Systems Windows and Linux.
You will find there:
I hope that in the next days the 64-bit Operating System Releases will follow :-)
In the meantime everybody who got an My Oracle Support (formerly Oracle Metalink) account can download the Patches for Oracle Fusion Middleware 11.1.1.4.0 for 64-bit Operating Systems (Linux x86-64, Windows 64-bit, Oracle Solaris SPRAC, AIX) from there.
In the meantime: happy downloading and testing :-)
Update Note: I just saw that now also the Oracle Fusion Middleware 11.1.1.4.0 for Linux x86-64, Windows 64bit and Oracle Solaris SPARC 64bit is available on http://edelivery.oracle.com
You will find there:
- Oracle Fusion Middleware Companion 11g (11.1.1.4.0)
- Oracle Portal, Forms, Reports and Discoverer 11g Patch Set 3 (11.1.1.4.0)
- Oracle Identity Management 11g Patch Set 3 (11.1.1.4.0)
In the meantime everybody who got an My Oracle Support (formerly Oracle Metalink) account can download the Patches for Oracle Fusion Middleware 11.1.1.4.0 for 64-bit Operating Systems (Linux x86-64, Windows 64-bit, Oracle Solaris SPRAC, AIX) from there.
In the meantime: happy downloading and testing :-)
Update Note: I just saw that now also the Oracle Fusion Middleware 11.1.1.4.0 for Linux x86-64, Windows 64bit and Oracle Solaris SPARC 64bit is available on http://edelivery.oracle.com
Tuesday, January 25, 2011
Oracle WebCenter Suite 11.1.1.4.0 available
Since today the new release of the Oracle WebCenter Suite 11.1.1.4.0 (11g Release 1 PS3) is available in the Oracle Technology Network under the following link: http://www.oracle.com/technetwork/middleware/webcenter/downloads/index.html
There are several new features, mainly I am interested to see the integration with the latest Oracle Universal Content Management.
Moreover Oracle is providing on the 2nd February 2011 at 10 a.m. PT (19:00 CET) a Webcast for the new launch of the Oracle WebCenter 11g R1 PS3. Registration can found done under following link: Register here.
There is also a good White Paper New Features available under following link: Click here
Also the new designed OTN download page is cool :-) Now you can see directly what additional software you will need including direct download link.
Moreover Oracle is providing on the 2nd February 2011 at 10 a.m. PT (19:00 CET) a Webcast for the new launch of the Oracle WebCenter 11g R1 PS3. Registration can found done under following link: Register here.
There is also a good White Paper New Features available under following link: Click here
Deferred Segment Creation under Oracle 11.2 and Sequences
An ex-colleague (Christian Zuberbühler) of me pointed me to a strange behavior under Oracle 11.2 with sequences.
So I had a quick look at it, following show case:
Nice :-) Normally everybody is expecting under the column ID the value 1.
As my test table is created under Oracle 11.2 the default setting for the new feature deferred_segment_creation is true. Therefor the insert command is facing an ORA-14403 internally as the affected table doesn't have any segment. A new segment will be created for my test table and the insert command will be re-run, so the inserted value from the used sequence will be one value higher.
The internally faced ORA-14403 can easily proven with the event 14403. Just set the event 14403 before you execute the insert statement:
In the corresponding alertlog you will find then something similar like this:
According to Oracle this is not a bug, its an expected behavior from Oracle 11.2 going. The recommended solution from Oracle is "deferred_segment_creation=FALSE" . . .
So I had a quick look at it, following show case:
create sequence seq_t1_id start with 1; create table t1 (id number, col1 varchar2(20)); insert into t1 values (seq_t1_id.nextval, 'Test Value expected 1'); commit; select * from t1; ID COL1 ---------- -------------------- 2 Test Value expected 1
Nice :-) Normally everybody is expecting under the column ID the value 1.
As my test table is created under Oracle 11.2 the default setting for the new feature deferred_segment_creation is true. Therefor the insert command is facing an ORA-14403 internally as the affected table doesn't have any segment. A new segment will be created for my test table and the insert command will be re-run, so the inserted value from the used sequence will be one value higher.
The internally faced ORA-14403 can easily proven with the event 14403. Just set the event 14403 before you execute the insert statement:
create sequence seq_t1_id start with 1; create table t1 (id number, col1 varchar2(20)); ALTER SESSION SET EVENTS '14403 trace name errorstack level 3'; insert into t1 values (seq_t1_id.nextval, 'Test Value expected 1'); commit;
In the corresponding alertlog you will find then something similar like this:
Tue Jan 25 16:54:19 2011 Errors in file e:\oracle\diag\rdbms\xxx\xxx\trace\xxx_ora_6072.trc: ORA-14403: cursor invalidation detected after getting DML partition lock Tue Jan 25 16:54:26 2011 Trace dumping is performing id=[cdmp_20110125165426]
According to Oracle this is not a bug, its an expected behavior from Oracle 11.2 going. The recommended solution from Oracle is "deferred_segment_creation=FALSE" . . .
Wednesday, January 19, 2011
I am now Oracle ACE
Last night I receive an email from Oracle, that I was nominated by Dmitri Khanine (http://stellentexperts.blogspot.com/), who is also an Oracle ACE, for the Oracle ACE Award and the I receive the Award :-)
So, I am now Oracle ACE, cool ;-)
More informations about the Oracle ACE Award can be found under http://www.oracle.com/technetwork/community/oracle-ace/index.html
Dmitri, many thanks for the nomination ;-)
So, I am now Oracle ACE, cool ;-)
More informations about the Oracle ACE Award can be found under http://www.oracle.com/technetwork/community/oracle-ace/index.html
Dmitri, many thanks for the nomination ;-)
Saturday, January 15, 2011
Oracle Jdeveloper and Oracle ADF 11g Release 1 PatchSet 3 is available
Since yesterday (Friday, 14.01.2011) the Patch Set 3 (11.1.1.4.0) is available for download in the Oracle TechNet (OTN) under the link: http://www.oracle.com/technetwork/developer-tools/jdev/downloads/index.html
The complete list of new features and bugfixes can be found under the link: http://www.oracle.com/technetwork/developer-tools/jdev/index-088099.html
So happy downloading ;-)
The complete list of new features and bugfixes can be found under the link: http://www.oracle.com/technetwork/developer-tools/jdev/index-088099.html
So happy downloading ;-)
Friday, December 10, 2010
Last Day in my Consulting Life
Today will be my last day in my consulting life :-) After several years as consultant, time is coming to settle down.
But at first XMas vacation will be starting today and from 1st January 2011 I will have a new position at Philip Morris International.
But I will still work in the Oracle Section and I will still continue to blog here about my favorite stuff Oracle Fusion Middleware :-)
So, stay tune for the next post . . .
But at first XMas vacation will be starting today and from 1st January 2011 I will have a new position at Philip Morris International.
But I will still work in the Oracle Section and I will still continue to blog here about my favorite stuff Oracle Fusion Middleware :-)
So, stay tune for the next post . . .
Wednesday, December 1, 2010
WebLogic Server Logfiles
I am actually giving an Oracle University Course "Oracle WebLogic Server 11g: Administration Essentials". Today we reach the chapter Logfiles and an interesting question came up from one student:
So, we just tested it live as I never came to this idea to merge the Managed Server Logfiles into the Domain Logfile.
I just copy the fullpath of the Domain Logfile into the logfile defintion of one Managed Server of the Domain, saved this changes and did a restart of the Managed Server and ... Its working :-) All Managed Server related log entries were captured in the Domain Logfile :-)
Even as a teacher you can learn from time to time something during holding a course :-)
Is it possible to define one logfile for multiple Managed Server and the global Domain Logfile? So that I don't have to go through multiple logfiles for investigation of problems or errors
So, we just tested it live as I never came to this idea to merge the Managed Server Logfiles into the Domain Logfile.
I just copy the fullpath of the Domain Logfile into the logfile defintion of one Managed Server of the Domain, saved this changes and did a restart of the Managed Server and ... Its working :-) All Managed Server related log entries were captured in the Domain Logfile :-)
Even as a teacher you can learn from time to time something during holding a course :-)
Wednesday, November 24, 2010
Oracle 11g Release 2 Interactive Quick Reference
Today I discover the new available Oracle 11g Release 2 Interactive Quick Reference. The Quick Reference can be downloaded from following link http://www.oracle.com/go/?&Src=7027600&Act=54&pcode=WWOU10044054MPP047
The download contains 2 files, one Flash Player executable and a PDF.
The Flash Player executable is really cool :-) nice work from Oracle. Its contains all DBA-Views, all Oracle Processes and an Oracle Architecture Diagram. The PDF contains just teh Oracle Architecture Diagram.
I hope they will also provide a version of the Interactive Quick Reference for Non-Windows users :-)
The download contains 2 files, one Flash Player executable and a PDF.
The Flash Player executable is really cool :-) nice work from Oracle. Its contains all DBA-Views, all Oracle Processes and an Oracle Architecture Diagram. The PDF contains just teh Oracle Architecture Diagram.
I hope they will also provide a version of the Interactive Quick Reference for Non-Windows users :-)
Friday, September 17, 2010
Creating a Windows Service for Oracle WebLogic Server
In case you are using the Oracle WebLogic Server under Windows, you may want to run your WebLogic Server as a Windows Service instead of all time running the provided cmd files to startup your WebLogic Server.
For this Oracle provides us a small script to create a Windows Service for our WebLogic Server, the script is located in %WL_HOME%\server\bin with the name installsvc.cmd. The best way to use this script is to build up a small wrapper script with all the necessary variable declarations and a call on the installsvc.cmd:
Just adjust the above example to your settings and run the wrapper script, this will create you a Windows Service "beas %DOMAIN_NAME%_%SERVER_NAME%", if you dont like the naming convention for the Windows Service to be created, just edit the installsvc.cmd script. Nearly at the end you will find following line:
Just adjust the option -svcname to your prefered settings.
For this Oracle provides us a small script to create a Windows Service for our WebLogic Server, the script is located in %WL_HOME%\server\bin with the name installsvc.cmd. The best way to use this script is to build up a small wrapper script with all the necessary variable declarations and a call on the installsvc.cmd:
echo off SETLOCAL set DOMAIN_NAME=DemoDomain set USERDOMAIN_HOME=D:\oracle\fmw-11.1.1\user_projects\domains\DemoDomain set SERVER_NAME=DemoAdminServer set PRODUCTION_MODE=true set JAVA_VENDOR=BEA set JAVA_HOME=D:\oracle\fmw-11.1.1\jrmc-4.0.1-1.6.0 set MEM_ARGS=-Xms256m -Xmx512m call "D:\oracle\fmw-11.1.1\wlserver-10.3.3\server\bin\installSvc.cmd" ENDLOCAL
Just adjust the above example to your settings and run the wrapper script, this will create you a Windows Service "beas %DOMAIN_NAME%_%SERVER_NAME%", if you dont like the naming convention for the Windows Service to be created, just edit the installsvc.cmd script. Nearly at the end you will find following line:
"%WL_HOME%\server\bin\beasvc" -install -svcname:"beasvc %DOMAIN_NAME%_%SERVER_NAME%" -javahome:"%JAVA_HOME%" -execdir:"%USERDOMAIN_HOME%" -maxconnectretries:"%MAX_CONNECT_RETRIES%" -host:"%HOST%" -port:"%PORT%" -extrapath:"%EXTRAPATH%" -password:"%WLS_PW%" -cmdline:%CMDLINE%
Just adjust the option -svcname to your prefered settings.
Sunday, September 12, 2010
Oracle Universal Content Management 11g in another way
Today I discover the "Adventures of ECM 11g" from Billy Cripe (Fishbowl Solutions). That's really another cool way how to learn about Oracle Enterprise and Universal Content Management :-)
Enjoy it ...
That,s just part 1, right now you'll find 4 parts under Youtube
Enjoy it ...
That,s just part 1, right now you'll find 4 parts under Youtube
Wednesday, August 18, 2010
The Oracle Universal Content Management Handbook - available
Under my post http://dirknachbar.blogspot.com/2010/05/review-of-oracle-universal-content.html in May 2010 I recommended the book "Oracle Universal Content Management Handbook" from Dmitri Khanine. Now the book is published and ready to buy or order.
Once again, if you are working with the Oracle Universal Content Management, this book might help you :-)
Details for Dmitri's book can be found under https://www.packtpub.com/oracle-universal-content-management-ucm-handbook/book
@Dmitri: Really good work :-)
Details for Dmitri's book can be found under https://www.packtpub.com/oracle-universal-content-management-ucm-handbook/book
@Dmitri: Really good work :-)
Thursday, July 15, 2010
New Book: Oracle JRockit - The Definitive Guide
A couple of weeks ago I receive a request from Packt Publishing, if I am interested in reviewing and writing a short summing up of the new book "Oracle JRockit - The definitive Guide" and here we go :-)
The book are written by Marcus Hirt and Marcus Lagergren, two developers of the original JRockit therefore they really know about what they are writing :-) and the blurb of the book dont't distend that "this book helps you gain in-depth knowledge of Java from the JVM's point of view". What they promise, you will really get :-)
The book is well structured, starting with a classical "Getting Started" chapter, steping over to Code Genereation and Memory Management and Threads & Synchronization. After that my personal favorit chapters following.
The chapter about "Benchmarking and Tuning" is pretty good, starting with different types of Benchmarking, why we need them and how to decide which Benchmarking could be the right one for you. Logically in the same chapter you will find after your benchmarks a section about tuning.
The chapter about "JRockit Mission Control" is in my opinion the best one of the book (but that's just my personal opinion) and in combination with the chapter about "The Flight Recorder" it's unbeatable :-) Here the authors show how to use this powerful tool really in a practical way, so that you gain in-depth knowledge and you learn how to use it in your day-to-day tasks.
The chapter about "The Memory Leak Detector" is also really usefull if you run in such problems.
Moreover there is an interesting chapter about the brandnew "JRockit Virtual Edition", which will be in my opinion the future of how to use and implement a JVM.
My personal conclusion about this book: It's really a must for everybody who is working with the Oracle JRockit, no matter if you are a developer or a WebLogic Server Administrator. So checkit out either in your bookstore or just go the Packt Publishing Website.
The book is well structured, starting with a classical "Getting Started" chapter, steping over to Code Genereation and Memory Management and Threads & Synchronization. After that my personal favorit chapters following.
The chapter about "Benchmarking and Tuning" is pretty good, starting with different types of Benchmarking, why we need them and how to decide which Benchmarking could be the right one for you. Logically in the same chapter you will find after your benchmarks a section about tuning.
The chapter about "JRockit Mission Control" is in my opinion the best one of the book (but that's just my personal opinion) and in combination with the chapter about "The Flight Recorder" it's unbeatable :-) Here the authors show how to use this powerful tool really in a practical way, so that you gain in-depth knowledge and you learn how to use it in your day-to-day tasks.
The chapter about "The Memory Leak Detector" is also really usefull if you run in such problems.
Moreover there is an interesting chapter about the brandnew "JRockit Virtual Edition", which will be in my opinion the future of how to use and implement a JVM.
My personal conclusion about this book: It's really a must for everybody who is working with the Oracle JRockit, no matter if you are a developer or a WebLogic Server Administrator. So checkit out either in your bookstore or just go the Packt Publishing Website.
Enterprise 2.0 - How Iron Man would work - Presentation by Emiliano Pecis
Today I discover a really good presentation by Emiliano Pecis from Oracle (http://blogs.oracle.com/woa/) about Enterprise 2.0
Friday, July 9, 2010
Oracle Web Tier Utility Configuration Error INST-07281: JRF is not set up in the specific domain
The problem is really simple, the necessary JRF Libaries are not by installed configured in a WebLogic Server Domain if you had used the standard template for the domain configuration.
Therefor you have to extend your WebLogic Server Domain, just startup under the WL_HOME/common/bin the script config.sh and chose the option "Extend an existing WebLogic Server Domain". Then chose in the tree your WebLogic Server Domain, after that you will reach below provided screenshot and chose under "Extend my domain automatically to suppoprt the following added products" the option "Oracle JRF - 11.1.1.0".
After the extension of your WebLogic Server Domain is finished, you have to restart your WebLogic Server Domain AdminServer in order to load the newly added Libaries.
After the restart of the AdminServer you can try again your configuration of the Oracle Web Tier and you will see, that now the configuration process will proceed.
The most practical way is, if you install your Oracle Web Tier at first with the option "Install only", after that you run the WL_HOME/common/bin/config.sh script to add the necessary Oracle JRF components to your WebLogic Admin Server, perform a restart of your Admin Server and as last you run the config.sh script for the Oracle Web Tier in the directory WebTier_ORACLE_HOME/bin and go through the configuration steps.
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