What will happen to application if node fails in RAC

Hi,
If a application is connected to 2 node RAC Database and running some job ,and if it is connected to node 1 and if the node 1 fails ,will it failover to 2nd node if it is connected thorough a services which is started as preferred on both node.
If suppose the application failover to the 2nd node do we need to submit the job again.
here we are connect to the database from a application not directly.

user12956550 wrote:
Hi,
If a application is connected to 2 node RAC Database and running some job ,and if it is connected to node 1 and if the node 1 fails ,will it failover to 2nd node if it is connected thorough a services which is started as preferred on both node.If the service is configured to go over the 2nd node, it would do a failover and would run now on 2nd node.
If suppose the application failover to the 2nd node do we need to submit the job again.That would depend on what kind of TAF you have selected to use.
HTH
Aman....

Similar Messages

  • What will happen to ongoing transaction in RAC if the node fails?

    In my RAC setup with three nodes .....if there are few transactions going on one node and the same node fails what will happen to those ongoing transactions........i mean will they be rollback....or what?????????
    Thanx in advance
    Gagan

    this is an sqlplus feature. If you do not useSQLPLUS, but something like toad or any other client,
    it will not work.
    But, it gonna work with middleware softwares.well, if sqlplus could do it, another software could do the same. The trick is, you must reexecute the same select and be sure to get the rows in the same order !!!
    If you do a fetch, this is ok, there is well a "select cursor" failover, but for a "bulk select", you should restart your query.
    >
    well, the transaction will be rollback and you willlose contact if you use sqlplus
    Not necessarly, if you configured load balance, then,
    you wont loose the connection.Will not you? I must try it one day, I just removed RAC from my notebook last week because of the lack of disk space...
    >
    the select actually reexecutes on the other node insqlplus, but you only "see" the lines comming after
    the current ones (but the whole select is
    reexecuted)
    Exactly, but, user wont realizes this.apart from the time he will have to wait, which can be quite long if the query already returned 90% of the rows...
    >
    Go through the link which I have provided in my
    earlier reply for more understanding on type of
    failover and load balance.well, quite unclear actually :
    Therefore, with Transparent Application Failover, a client notices no connection loss as long as one instance remains active to serve the application... there is no "connection loss", which does not mean there is no "loss" !
    http://download-west.oracle.com/docs/cd/B10501_01/network.920/a96580/advcfg.htm
    Active Transactions
    Any active transactions are rolled back at the time of failure because TAF cannot preserve active transactions after failover. The application instead receives an error message until a ROLLBACK is submitted.
    which means, your application must manually resent the transaction or whatever is appropriate

  • What will happen if adding a new node with current cluster, while new node's CPU is slower quality?

    Hello,
    Say, I have a 3 nodes RAC, I want to add a new node to current cluster... while the new node's CPUs are slower than the others.. what will happen?
    (my concern is : can I add this new node successfully? if yes, can it anyway improve the whole cluster performance or not?)
    Thank you
    s9225

    Also you can refer MOS note : RAC: Frequently Asked Questions (Doc ID 220970.1)
    Can I have different servers in my Oracle RAC? Can they be from different vendors? Can they be different sizes?

  • What will happen when I install Leopard?

    So when leopard comes out in a few weeks and I install it, what will happen to all the files and apps on my computer. Will they be gone? Will I have to redo everything?
    This is my first transition on a new OS X. I switched right aftr Tiger came out. What is going to happen?

    Fair comment!
    If you want the full nine yards:
    There are no guarantees, but following this procedure when installing updates and upgrades on your Mac will go a long way towards avoiding unpleasant after effects and ‘post-update stress disorder’.
    It is also worth noting that it is an extreme rarity for updates to cause upsets to your system, but they may well reveal pre-existing ones, particularly those of which you may have been unaware. If you are actually aware of any glitches, make sure they are fixed before proceeding further.
    So before you do anything else:
    If you can, make a full backup first.
    Turn off sleep mode for both screen and hard disk.
    1. Repair Permissions (in Disk Utility)
    2. Verify the state of your hard disk using Disk Utility. If any faults are reported, restart from your install disk (holding down the C key), go to Disk Utility, and repair your startup disk. Restart again to get back to your startup disk.
    At least you can now be reasonably certain that your system does not contain any obvious faults that might cause an update/upgrade to fail.
    3. Download the correct version of the COMBO update from the Apple download site. If your car runs on gasoline you would not want to fill the tank with diesel, so don’t try to install the PPC updater on an Intel Mac!
    If you prefer to download updates via Software Update in the Apple menu (which would ensure that the correct version for your Mac was being downloaded), it is not recommended to allow SU to install major (or even minor) updates automatically. Set Software Update to just download the updater without immediately installing it. There is always the possibility that the combined download and install (which can be a lengthy process) might be interrupted by a power outage or your cat walking across the keyboard, and an interrupted install will almost certainly cause havoc. Once it is downloaded, you can install at a time that suits you. You should make a backup copy of the updater on a CD in case you ever need a reinstall.
    Using the Combo updater ensures that all system files changed since the original 10.4.0 are included, and any that may have been missed out or subsequently damaged will be repaired. The Delta updater, although a temptingly smaller download, only takes you from the previous version to the new one, i.e. for example from 10.4.9 to 10.4.10. Software Update will generally download the Delta updater only. The preferable Combo updater needs to be downloaded from Apple's download site.
    Now proceed as follows:
    4. Close all applications.
    5. Unplug all peripherals except your keyboard and mouse.
    6. Install the update/upgrade. Do not under any circumstances interrupt this procedure. Do not do anything else on your computer while it is installing. Be patient.
    7. When it ask for a restart to complete the installation, click restart. This can take longer than normal, there are probably thousands of files to overwrite and place in the correct location. Do nothing while this is going on.
    8. Once your Mac is awake, repair permissions again, and you should be good to go!
    If your Mac seems slightly sluggish or ‘different’, perform a second restart. It can’t hurt and is sometimes efficacious!
    9. Open a few of your most used applications and check that all is OK. In this connection please remember that not all manufacturers of third party applications and plug-ins, add-ons, haxies etc, will have had time to do any necessary rewrites to their software to make them 10.4.10. compliant. Give them a weeks or two while you regularly check their websites for updates. This applies particularly to plug-ins for Safari 3.
    N.B. Do not attempt to install two different updates at the same time as each may have different routines and requirements. Follow the above recommendations for each update in turn.

  • What will happen if oracle listener is stopped and started again.....

    Hi Gurus,
    Please suggest What will happen if oracle listener is stopped and started again on a running SAP System ?
    Thanks in advance.

    Hi Lakhbir,
    What will happen is that, all SAP work processes will loose connection to the database.
    If any active jobs(background jobs, updates, insert to database ) are running, they may fail. All the work processes will go to a re-connect state.
    ( There are few notes on WP reconnect which you can check and read about)
    DB Reconnect Parameters - SAP High Availability - SAP Library
    Application will be running but users will not be able to do any activity or may not be able to login at all and may get errors  like ( No connect to database possible)
    As soon as you start the listener process again , all the work processes will connect to the database again.
    This is because the WPs will keep on trying to connect to database at regular interval and as soon as the connection is available they will re-connect.
    You do not have to restart any work process manually in SM50 or anywhere else as this feature is enabled by default until disabled manually.
    Thanks
    Amit

  • Question about free down loading Mavericks. On checking Mavericks before downloading that there are no Bangla language in the list. I occasionally use Bangla in my present Mountain Lion. My concerns if I down load Mavericks then what will happen to Bangla

    Question about free downloading Mavericks. On checking Mavericks before downloading that there are no Bangla language in the list. I occasionally use Bangla in my present Mountain Lion. My concerns is, if I download Mavericks then what will happen to Bangla language in mountain lion? Samar Laha

    No reason to be embarassed. You are not alone.
    You will need an external drive. If you have a Time Machine drive without enough disk space you can create the clone there however it's advised that you keep your Time Machine and clone on separate drives. If the drive dies you loose both types of backup.
    Download and install the clone software. Everyone has their favorite. These are the two most common applications used. I prefer SuperDuper because of it's simplicity in setting up. It's also free for the first clone where with CCC you have to give a Credit Card then cancel if you do not want to keep.
    SuperDuper! http://www.shirt-pocket.com/
    CCC http://www.bombich.com/download.html
    Select your drive in the To popup. Click on Copy Now. That's it.
    Yes, it really is that simple....

  • I support a very large school district currently running Firefox 3.6. What will happen at end of life date? We're in the middle of online testing this week.

    I run the test center for a very large school district with over 120k students. We've got a current deployed base of 54k client machines using Firefox 3.6. We haven't upgraded due to multiple reasons, the most important of which is removing the possibility of using In Private Browsing from the students, and dealing with plugin-updates for the non digital natives (read dumber than a bag of hammers users) that make up the majority of the client base.
    We're testing ESR now, but just found out that end of life for 3.6 is tomorrow, 4/24. We are currently in the middle of statewide online testing. The question is, what will happen tomorrow when the browser goes end of life. The ESR wiki mentions that "an update to the current version of Desktop Firefox will be offered through the Application Update Service"
    So the main question is, are my students/teachers going to get a popup telling them they have to update the browser if we have the updates already turned off? If so, can I turn it off remotely using SCCM, because it will cause all kinds of havoc.
    Please advise asap, and thanks in advance.

    We had to do some serious gymnastics to remove at least most of the ability to use IPB. We removed it from the gui, but unfortunately, if they know the hotkey, they can still bring it up. Security has some serious headaches with this, as by law they have to be able to track where students go, and going with private browsing removes their ability to do forensic work they're required to be able to do. Not a very well thought out feature from Mozilla in my opinion, but it is what it is. Successive versions have made it even more difficult to remove even the gui portion.
    We do plan to release ESR due to the aforementioned security issues, but testing has been slow.
    But thanks for the reply. I think we can turn off the updates if it isn't already done.

  • What will happen when I quit iphoto during repair?

    I force quit my iphoto because the whole computer was running slow.
    then when I open it again, it pops out a window asking to repair. I let it repair
    but it wasn't really moving and took so long. I was wondering what will happen
    if I quit iphoto now?

    Make a back up now, so things at least can't get any worse.
    Then quit and try again.
    If that fails:
    Download iPhoto Library Manager and use its rebuild function. (In Library Manager it's the FIle -> Rebuild command)
    This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
    Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.  

  • What will happen if i mention like load-on-startup -1 /load-on-startup   ?

    Hi All,
    In my web.xml what will happen if i mention like <load-on-startup>
    -1</load-on-startup> ?

    It's not WebLogic-specific, the load-on-startup web.xml element is a standard common component to all application servers.
    As for what it does, then yes, the BEA link explains it well enough. So that explanation applies to WAS too.

  • What will happen if I don't use apple's hdd?

    My HDD is passed away.
    I'm using Macbook Unibody(A1342) and I will replace the HDD.
    I heard that Apple's HDD has a temperature sensor.
    So that If I don't use that, it will be a problem, as I heard.
    What will happen if I don't use the Apple's HDD?

    The tempeture sensor is on the logic board not the hard drive. Apple doesn't make any hard drives they buy them from other manufacturers.
    For a new hard drive try Newegg.com  
    Regular SATA drives http://www.newegg.com/Store/SubCategory.aspx?SubCategory=380&name=Laptop-Hard-Dr ives&Order=PRICE  Use the list at the left for larger and faster drives.
    SSD drives
    http://www.newegg.com/Internal-SSD/SubCategory/ID-636?Order=PRICE  Use the list at the left for larger and faster drives.
    Or OWC for regular hard drives and SSDs  http://eshop.macsales.com/shop/hard-drives/2.5-Notebook/
    Here are video instructions on replacing the hard drive on the White Unibody http://eshop.macsales.com/installvideos/macbook_13_09_unibody_hd/
    To transfer your current hard drive I like the applications Carbon Copy Cloner or SuperDuper. They make a bootable copy of everything on your hard drive. http://www.bombich.com/index.html or http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html 
    You'll need a cheap SATA external hard drive case. Put the new drive in the case then format and partition the new drive and clone your old drive to the new one. Check that it's set up right by booting up from the external drive. Then replace your old hard drive with the new one and put your old one in the external case.
    Here's a cheap SATA external hard drive case on Amazon http://www.amazon.com/Vantec-NexStar-2-5-Inch-External-Enclosure/dp/B002JQNXZC/r ef=pd_cp_pc_0
    If you don’t have the tools to open up the MacBook OWC has a set for $5
    http://eshop.macsales.com/item/OWC/TOOLKITMHD/

  • What will happen if I quit the installer?

    What will happen if I quit the installer? It seems to be stuck a the last step "Time Remaining: About a minute"but the installer application is responsive. What are the consequences of quiting the installer?

    See if you can boot off another disk( Tiger, Panther,) go to Disk utility, and erase the drive.
    Eject the disk and boot up the Leopard disk and install.
    Boot by holding down the c key till the install screen appears.
    dj
    Message was edited by: dj640

  • Clean install of ML - what will happen?

    I have made a bootable USB drive with Mountain Lion installer.
    I am prepared to make a clean install of ML on my drive (since it has become slow and glitchy).
    I have a clone of my Mac drive, and have made a dmg of my windows drive and put them both on a bootable external hard drive.
    Now I am ready to proceed in formatting my mac drive but I have to questions (which no one after hours of googling seem to be able to answer):
    Two questions.
    1. What will happen to my Boot camp partition after a clean install of Mac OS X? Will I still be able to boot windows normally?
    2. What happens to programs that requires license to install, for example Office 2011, Photoshop CS5 etc? Will they allow me to restore it from TimeMachine backup or my clone or do I need new licenses?
    From what I've read so far... The least problems is if I keep my username exactly as it is, manually copying files and folders from the clone drive to the new installation of ML. Downloading fresh programs from the internet. But still, the licensed ones will have files spread all over and can't easily be copied right? And also, will my computer be able to instantly recognize the boot camp partition and load it normally?

    Your question 1.
    Do not manually copy any files... particularly applications. There is so much that has to be moved over, it is impossible to know where these files are. When you reinstall the OS you will be asked if you want to transfer stuff over. Take that route, and save yourself an impossible task.
    The good news is that when you do it that way the license info should also be transferred. In any case you do not need NEW licenses. At worst you will have to do a one-time re-enter of the ones you have.
    Your question 2.
    I believe, but let's hope some one more knowledgeable than I will confirm, the Bootcamp partition does not have to be erased during a clean install.

  • I'm getting an error message that says iphoto is damaged - delete and reinstall from app store.  If I delete iphoto, what will happen to my pictures?

    I'm getting an error message when I try to open iPhoto - it says, "iPhoto is damaged and cannot be opened. Delete iPhoto and download it again from the App Store." If I delete and reintall, what will happen to my pictures?  I cannot open my pictures from the Finder either to save them/back them up.

    Hello jwhhunt,
    Thanks for using Apple Support Communities.
    Your iPhoto Library is stored separately from your iPhoto application, therefore reinstalling iPhoto as the error message describes, will not affect your iPhoto Library.
    OS X Mavericks: Reinstall apps that came with your Mac
    http://support.apple.com/kb/PH14193
    iPhoto 9.5: iPhoto library overview
    http://support.apple.com/kb/PH15261
    Take care,
    Alex H.

  • What will happen when to Java 7 when Java 8 will roll out?

    Hi, we have an application that relies on Java 6 and 7 to work. What will happen when Java 8 will be released. Will the notification instantly pop for users of Java 6 and 7 to install Java 8 (if they have the autoupdate feature set to on)?
    This is quite important since our application is in end of life and won't get an update to work with Java 8.
    Thank you.

    Hi There ,
    Number of bugs wills increase with your current development if you move to 8 ,  most probably solutions will be  on  Google Search by that time  , then you just need to type "how to upgrade from JAVA 7 to JAVA 8 without any problems"  , just don't worry be happy !
    Thanks

  • What will happen to iPod 5G's info when I do a fresh Windows install?

    Title basically says it all. I've been using my iPod Video as a storage device as well as for music, and I'm going to do a clean install of Windows XP in the near future-my CD/DVD drive has somehow failed to respond (code 41), so reinstalling Windows to factory settings should do the trick. Only problem I can foresee is what will happen to all the data on my iPod when I reinstall the CD software for iTunes and my iPod drivers-will all the data on my iPod disappear when I reconnect it to my laptop for the first time?
    Just wondering if anyone's done this before, as I'll assume it's a typical topic.

    When the iPod is connected to the PC after reinstalling Windows, a message will appear asking you if you want to change the computer the iPod is associated with will appear if iTunes is installed; pressing Erase & Sync on this dialog box will delete all content on the iPod that was synced from iTunes. Content copied to the iPod outside of iTunes will not be erased by iTunes unless you explicitly restore the iPod.
    (25302)

Maybe you are looking for