If you need additional hardware resources such as memory or cpu, or experience hardware failure, you simply add. Connections to scan listeners consistently fail with an. Real application cluster essentials and oracle expert rac books. Connection to rac failing with ora 12154 i have rac cluster, a service which is configured using revctl, for instance, specific connection.
In this oracle 11g rac training course, expert trainer steve hamilton explains oracle s real application clusters rac and provides a detailed look at installing and configuring oracle s rac environment. Ora01033 when connecting to the db via scan listener. This is mostly suited in three tier web environments where end users would not connect to the database directly and application servers can use local listener connections 10g like connections over vips. You can also catch regular content via connors blog and chriss blog. The connect descriptor received by the listener specified. A former adjunct professor, don burleson has written more than 30 books, published more than 100 articles in national magazines, and serves as editorinchief of rampant techpress. Hi, this is kajamaideen from india, i am jobless and searching job in java, j2ee, jsp, servlets. I run an instance of oracle 11g locally on my development machine and can connect to the local instance directly via sqlplus. So now i have installed the oracle agent on both clients. To install oracle database on your computer, you need to download the installer from the download page of oracle website after having the installation files which are in zip format, you need to extract them into a specific folder on your computer. January 1, 2014 by anargodjaev in oracle introduction leave a comment problem gettting oa12514 from client after fresh installation of 11gr2 rac on oel5. Oracle database 19c, is the long term support release of the oracle database 12c and 18c family of products, offering customers premier and extended support through to march 2023 and march 2026 respectively.
It is available on linux, windows, solaris, hpux and aix platforms as well as the oracle cloud. Data guard is the name for oracle s standby database solution, used for disaster recovery and high availability. Real application clusters, commonly abbreviated as rac, is oracle s industryleading architecture for scalable and faulttolerant databases. Now i want to switchover to physical standby but there is a problem. Enter your email address to subscribe to this blog and receive notifications of new posts by email. This article gives an example of the setup and administration of data guard using the data guard broker. Manageability comparison of oracle database 9i, 10g, and 11g 100%. Ensure you used a tns that is static to a particular instance of the rac database while connecting to the source database. One of the biggest obstacles preventing people from setting up test rac environments is the requirement for shared storage. Pro oracle database 11g rac on linux experts voice in. Total 7 years experience as an oracle application dba in oracle database support on oracle 12c11g10g with r1211i. One reader asks how he can make a copy of his oracle database but not have any data in it, for test purposes. For nondefault port set the local listener on the respective database where ora 12514 was thrown. Data guard is the name for oracles standby database solution, used for disaster recovery and high availability.
Scan setup for oracle 11g release211gr2 rac implementation. Your tns entry is reachable to the database listener. The oracle cluster in this example is a 2 node cluster as seen from the. This is mostly suited in three tier web environments where end users would not connect to the database directly and application servers can use local listener connections. Unanswered oracle11g questions page 49 stack overflow. Solution after investigation lsnrctl services output for listeners. Stack overflow the worlds largest online community for developers. In the case of an oracle rac enabled gds database, the third address list.
Oracle 11g listener fails with ora12514 and ora12505 errors. Oracle base oracle database 11g release 2 rac on oracle. This books was freely distributed to the oracle beginners in turkey and azerbaijan. Listener, ora 12505, ora 12514, oracle, tns12505, tns 12514 related posts ora 12505 tns12505 tns. Mar 31, 2018 recognizing his efforts and contribution towards the oracle community, oracle awarded him the prestigious best dba of the year, 2011 and oracle ace director status. Ora 01034 oracle not available its likely that your database instances are down. Learning oracle 11g real application clusters oreilly media. How to connect oracle 11g r1 database with java program. The service was limited to oracle 11gr2 until april 2015, when support for.
Pro oracle database 11g rac on linux provides fulllifecycle guidance on implementing oracle real application clusters in a linux environment. Ora 12514 with real application cluster if this is your first visit, be sure to check out the faq by clicking the link above. Oracle database 11g release 2 rac on windows 2008 using virtualbox. This course is designed for an aspiring oracle database administrator dba or a currently practicing dba. Rac uses oracles clustering software to manage a highly available environment. This oracle documentation was created as a support and oracle training reference for use by our dba performance tuning consulting professionals. Changing the clients tnsnames entry as follows solved the. Odg is what i use as shorthand for oracle data guard. When i check status of dataguard with dgmgrl show database sby2. The above issue is likely to be hit when you initiate an active database duplication command on 11gr2 or higher rac database while settingup a standby rac database. The service name you provided could not be found in tnsnames. The listener received a request to establish a connection to a database or other service. Service name is like an alias that allow us to connect the db, it can be recorded in tnsnames.
After setting up a taf service in one of my rac environments i checked if the local listener that was configured for the database was showing the services as to be expected. Oracle 11g books oracle database internal mechanism. Expert oracle rac 12c is a handson book helping you understand and implement oracle real application. As a seasoned professional, you are probably aware of the importance of understanding the technical details behind the rac stack. Jul, 20 when listener does not know of service requested in connect ora 12514. Ora12514 on data guard switchover burleson consulting. Oracle supports grid computing with its real application clusters rac capability and its oracle enterprise manager oem. Full text of oracle data guard 11g r 2 administration. Dataguard error with ora12514 solutions experts exchange. Oracle 10g creating library management system using struts 2 may 18, 2011. The oracle rac cluster infrastructure contains two clients, client100 and client 102. Ora12514 with real application cluster if this is your first visit, be sure to check out the faq by clicking the link above. I would like to know the step by step installation of oracle 11g rac.
This works for any oracle database except when the specific database is a rac. Service name can be different from database name or instance name also know as sid. Oracle database online documentation 11g release 2 11. Problem gettting oa12514 from client after fresh installation of 11gr2 rac on oel5. With all my pleasure im glad to announce my friends book oracle data guard 11gr2 administration beginners guide. Oracle 11g listener fails with ora12514 and ora12505. Grid computing relieves users from concerns about where data resides and which computer processes their requests. Ora12514 when using a database link a database link is just like a client which is trying to connect the remote database. Develop json based applications using soda drivers. Understood that while the the listener contains fully qualified domain name as service name, tnsnames. Download and unzip both files to the same directory. Installation guides and general oracle database 12 c documentation are here. The preventive action to ora12514 in an incomplete switchover is to add a very special static service in listener. Connections to scan listeners consistently fail with an ora 12520 or ora 12516 error.
Full text of oracle data guard 11g r 2 administration beginners guide see other formats. Oracle 10g creating library management system using struts 2. Default service name is created with same as database name. Several days ago i helped to fix one ora 12520 issue in rac database, and from this issue i learned that special care should be taken when the listener. Oracle posters oracle books oracle scripts ion exceldb. Resolving tablespace issues ora01650 ora01652 ora01653 ora01654 and ora01658 troubleshooting listener startup or connection hang issues in 11g.
This post is to share the links for oracle books for better understanding of oracle internals and other exam guides to prepare for oracle exam. Listener refused the connection with the following error. How to create service name in oracle database or add. How to install oracle 11g r2 rac without scan setup in dns or gns. Rac support apps support analysis design implementation. Oracle data guard 11gr2 administration beginners guide. Recognizing his efforts and contribution towards the oracle community, oracle awarded him the prestigious best dba of the year, 2011 and oracle ace director status. Cluster database home page in enterprise manager 12c cloud control fails to display re. Oraclebase data guard physical standby setup using the. The issue was turned out to be not so complicated finally so i will not mention too many details of it. Browsed for the latest backup of the rac instance chose to restore the control file from autobackup, restore data from lastest backup, recover to latest backup chose to redirect all.
And of course, keep up to date with asktom via the official twitter account. Verify that you entered the service name correctly. He is an active blogger at and frequent international speaker in major. Suddenly getting ora12514 error oracle 11gr2 stack overflow. Ora12514 from dgmgrl switchover database james huang. Cause service name mismatch between listener and tnsnames.
Since its a common dba task to provide high availability of databases, data guard is a mustknow topic for every oracle database administrator. Oracle data guard 11g r2 beginners administration guide is a practical guide that provides all the information you will need to configure and maintain data guard. Listener issues ora12505tns12505 or ora12514tns12514. Bryan has most recently worked on an 11g grid and rac book. Standby fails to automatically start up due to unknown service ora 12514 9. Hello guys, as a dr test, we are trying to restore a full oracle rac database to a new nonrac instance on a different host, but with same db name and oracle sid. Don is a popular lecturer and teacher and is a frequent speaker at oracle openworld and. I have setup a primary 11g database which successfully ships and applies logs to a single standby on the same server as expected. Connor and chris dont just spend all day on asktom. Listener issues ora 12505tns12505 or ora 12514 tns 12514. Ora, an oracle names server, or a native naming service. In my case it has two nodes, i try to connect to node no. Oracle 11gr2 rac installation with gns, without scan explains the oracle 11g r2 rac installation with gns.
After that, i add a new oracle rac client and the first database. The connect descriptor received by the listener specified in addition to the service name an instance name for an instance usually a database instance. Oracle data guard 11gr2 administration 1 posted by n. Verifying and troubleshooting oracle database scan based. A reader asks a question about mirroring on oracle rac using data guard. Sep 27, 2016 resolving tablespace issues ora 01650 ora 01652 ora 01653 ora 01654 and ora 01658 troubleshooting listener startup or connection hang issues in 11g. Orneklerle oracle 11g r2 ve genel kavramlar oracle 11g r2 general concepts with examples was published as a book. All you need to know about disaster recovery technique youll find at these pages. Oracle rac errors and issues guest author i try to summarize here some of the errors and its solutions i got while running a oracle 10g r2 real application cluster rac install on vmware linux install. In a production environment, shared storage is often provided by a.
Configuring the oracle data guard physical standby database chapter 3. Oracle build it learn the building blocks behind the. Please complete the following steps to finish switchover. Oracle 11gr2 rac installation with gns, without scan explains the oracle 11g r2 rac installation with gns how to install oracle 11g r2 rac without scan setup in dns or gns. When listener does not know of service requested in connect. Oracle database 12c release 2 for windows downloads. Or if video is more your thing, check out connors latest video and chriss latest video from their youtube channels. Rac allows you to scale up and down by simply adding and. Riyaj has coauthored many books about oracle database. Expert oracle rac 12c is a handson book helping you understand and implement oracle real application clusters rac, and to reduce the totalcostofownership tco of a rac database. This book includes scripts and tools to hypercharge oracle 11g performance and you can buy it for 30% off directly from the publisher. This was caused by informatica oracle jdbc driver oracle ora 12514 connection refused, the specified.
Connection to rac failing with ora12154 i have rac cluster, a service which is configured using revctl, for instance, specific connection. Real application clusters, commonly abbreviated as rac, is oracles industryleading architecture for scalable and faulttolerant databases. This oracle documentation was created as a support and oracle training reference for use by. So, follow the steps mentioned in my previous mail, it may help you out. Oracle data guard 11gr2 administration oracle blog. Verify that the connection string and user name are valid.
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