SQLException: ORA-08177: can't serialize access for this transaction
Hiya, If anyone has any suggestions on the following, i would be grateful...
The exception is thrown by the flushing of the OutputStream in the following few lines:
java.io.OutputStream os = ((weblogic.jdbc20.common.OracleClob) myClob).getAsciiOutputStream(); os.flush();
The exception given is: java.io.IOException: Error while doing writeLobByteValue: java.sql.SQLException: ORA-08177: can't serialize access for this transaction at weblogic.db.oci.OciOutputStream.flush(OciOutputStream.java:152)
... plus a whole pile of internal stuff
This method is called from the ejbStore() method of an EJB, and it only fails the first time that ejbStore() is called, and then after that runs smoothly.
Any suggestions appreciated, Cheers, Karen.
Thanks, took a look at that previously - still having the problem though temp solution seems to be to delete extra records from the table in question but this isn't the best solution by all means.
Thanks again
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Can't serialize access for this transaction error.
Hi,
I am getting a transaction rolled back due to a beforeCompletion exception:
java.sql.SQLException: ORA-08177: can't serialize access for this
transaction
I am using Weblogic 5.10, SP5 & Oracle 8.
Basically what I have is:
- A java app that will get an EntityBean, named Schedule.
- The java app will then create a SessionBean, named Watchdog.
- The java app will then call a method on the Watchdog, passing in the
Schedule: watchdog.check(Schedule sched)
- The watchdog.check() method will do some processing and based on the
outcome may or may not update the Schedule: sched.setLast(<some number>)
- The check() method is then done & return to the java app.
I see log messages (on the weblogic server) saying the check() method is
done. Then I see messages, presumably from the container for:
- isModified ------> true
- ejbStore()
And then I see the exception messages.
The strange thing is that most of the time this processing works just fine.
Only occasionally do these exceptions get thrown.
The schedule EntityBean is set up as <transaction-isolation> for
TRANSACTION_SERIALIZABLE.
There is no other bean trying to update the Schedule at the same time.
Does anybody have any ideas?
Thanks in advance,
Beth
http://www.weblogic.com/docs51/classdocs/API_ejb/EJB_environment.html#107296
8
tells u about the limitations of transaction_serializable w.r.t. Oracle..
Pavan
"Beth" <[email protected]> wrote in message news:[email protected]...
> Hi,
>
> I am getting a transaction rolled back due to a beforeCompletion
exception:
> java.sql.SQLException: ORA-08177: can't serialize access for this
> transaction
>
> I am using Weblogic 5.10, SP5 & Oracle 8.
>
> Basically what I have is:
> - A java app that will get an EntityBean, named Schedule.
> - The java app will then create a SessionBean, named Watchdog.
> - The java app will then call a method on the Watchdog, passing in the
> Schedule: watchdog.check(Schedule sched)
> - The watchdog.check() method will do some processing and based on the
> outcome may or may not update the Schedule: sched.setLast(<some number>)
> - The check() method is then done & return to the java app.
>
> I see log messages (on the weblogic server) saying the check() method is
> done. Then I see messages, presumably from the container for:
> - isModified ------> true
> - ejbStore()
> And then I see the exception messages.
>
> The strange thing is that most of the time this processing works just
fine.
> Only occasionally do these exceptions get thrown.
>
> The schedule EntityBean is set up as <transaction-isolation> for
> TRANSACTION_SERIALIZABLE.
> There is no other bean trying to update the Schedule at the same time.
>
> Does anybody have any ideas?
> Thanks in advance,
> Beth
>
>
>
>
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Hi yilmazfromlondon,
The resource below explains how to share your iCloud calendars publicly. Is this what you are asking about?
iCloud: Share a calendar with others
http://support.apple.com/kb/PH2690
iCloud: Share a calendar with others
You can share a calendar both publicly and privately with other people. For specifics about viewing and editing privileges for shared calendars, and how participants can access the calendars, see Calendar sharing overview.
Share a calendar privately
Click the Share button to the right of the calendar name in the sidebar, then select Private Calendar.
Note: You can also share the same calendar publicly. For instructions, see the next task, “Share a calendar publicly.”
Type the invitee’s email address in the Add Person field and press Return.
Click the pop-up menu with the invitee’s name and choose access privileges (View & Edit or View Only).
For each person you want to share the calendar with, repeat steps 2 and 3.
When you’ve invited everyone and set their privileges, click OK.
Invitation emails are sent from your iCloud email address to the participants you specified.
Share a calendar publicly
Click the Share button to the right of the calendar you want to share, then select Public Calendar.
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To invite people to view the calendar, click Email Link.
Type one or more email addresses in the To field, then click Send.
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In the sidebar, a shared calendar has a dark Share button.
You can also resend invitations to one or more invited participants at any time.
Last Modified: Feb 5, 2015
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at System.Transactions.TransactionStateDelegatedBase.EnterState(InternalTransaction tx)
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at System.Data.SqlClient.SqlConnection.Open()
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--- End of inner exception stack trace ---
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at System.Data.Entity.Core.Objects.ObjectContext.EnsureConnection()
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at System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
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at System.Data.Entity.Core.Objects.Internal.LazyLoadBehavior.LoadProperty[TItem](TItem propertyValue, String relationshipName, String targetRoleName, Boolean mustBeNull, Object wrapperObject)
at System.Data.Entity.Core.Objects.Internal.LazyLoadBehavior.<>c__DisplayClass7`2.<GetInterceptorDelegate>b__2(TProxy proxy, TItem item)Hello,
I am not an expert in MSDTC but as we know,SQL Azure Database does not support
distributed transactions. This means that SQL Azure doesn’t allow Microsoft Distributed Transaction Coordinator (MS DTC) to delegate distributed transaction handling.
One common cause of MSDTC getting involved in Entity Framework applications is the fact that we close and reopen the same connection as needed (i.e. for each query that is executed).To avoid the stack from opening and closing the connection multiple times,
you can simply open the connection explicitly and run the queries in the same connectio.
The following thread is about a similar issue, please refer to:
http://answers.flyppdevportal.com/categories/azure/sqlazure.aspx?ID=d705a8cf-cba4-494c-96f6-96a136bd29e3
What's more, you can also try the workaround that involves setting the Enlist option of the SQL Azure connection to false. For the detail explanation, please refer to:Entity
FrameWork and SQL Azure
Regards,
Fanny Liu
Fanny Liu
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