Re: Reading resource busy error system trace

Thank You So much Nenad.

Unfortunately while checking with the team got to know that the other trace files has been removed from the location. So i will wait for the next occurrence of the error to capture and analyze all the traces wrt that one ospid.

On Sun, 12 Jun 2022, 9:24 pm Noveljic Nenad, <nenad.noveljic_at_vontobel.com> wrote:

> Your system dump apparently consists of several files.
>
>
>
> At the very beginning of the system dump there must be a section that
> identifies the blockers for each process and looks something like this:
>
> 157: USER ospid 1385877 sid 786 ser 49681, waiting for 'log file switch
> (checkpoint incomplete)'
>
> Cmd: INSERT
>
> Blocked by inst: 1, sid: 266, ser: 13238
>
> Final Blocker inst: 1, sid: 266, ser: 13238
>
> 159: USER ospid 1295896 sid 796 ser 48963, waiting for 'log file switch
> (checkpoint incomplete)'
>
> Cmd: INSERT
>
> Blocked by inst: 1, sid: 266, ser: 13238
>
> Final Blocker inst: 1, sid: 266, ser: 13238
>
>
>
> First, check who was blocking the Powercenter process with ospid 89092
> (Blocked by…). Then search **all** system dump trace files (**89092**.trc)
> for the blocker to look at its state objects. Once you now the sid and
> serial of the blocker, you can position yourself to its state objects with
> the following search expression: sid: xxx ser: xxx . One of the state
> objects will be for the cursor that blocked your DDL on MAIN_TAB.
>
>
>
> Best regards,
>
>
>
> Nenad
>
>
>
> *From:* Pap <oracle.developer35_at_gmail.com>
> *Sent:* Sonntag, 12. Juni 2022 14:06
> *To:* Noveljic Nenad <nenad.noveljic_at_vontobel.com>
> *Cc:* Oracle L <oracle-l_at_freelists.org>
> *Subject:* Re: Reading resource busy error system trace
>
>
>
> Thank You Nenad.
>
> So actually here the session/Alter statement, which failed, is from the
> informatica power center session only. So do you mean we should search the
> body of the original trace file from which this trace continued from i.e "u01/app/oracle/diag/rdbms/DB1p/DB11/trace/DB11_ora_89092_8.trc"
> rather this one. And in that trace the sql statements near the "final
> blocker" string will be the cause of this error?
>
>
>
>
>
>
>
>
>
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