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Re: Can't find the sql text from v$sql via the hash value

From: Jurijs Velikanovs <j.velikanovs_at_gmail.com>
Date: Mon, 19 Jun 2006 11:20:19 +0100
Message-ID: <d6f0def50606190320i54602149k3d8b0ab9a76a5f60@mail.gmail.com>


Eagle,

You wrote in you very fist post
>> When database hang, I got the sql hash value from v$session_wait view.
Just wonder what kind of EVENT you observed in a v$session_wait view at the time of hang?
What were the parameters P1, P2, P3 ?

Yury
http://www.freelists.org/archives/ora-apps-dba/05-2006/msg00000.html

On 6/19/06, Laimutis Nedzinskas <Laimutis.Nedzinskas_at_landsbanki.is> wrote:
>
>
> what about locks?
>
>
> ________________________________
> From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]
> On Behalf Of eagle fan
> Sent: 17. júní 2006 18:35
> To: oracle-l_at_freelists.org
> Subject: Re: Can't find the sql text from v$sql via the hash value
>
>
>
> Thanks for your reply.
>
>
> The hang just last several seconds, after several seconds, the application
> client cancel the operation and mark the database as unavaliable.
>
>
> Then we took the application clients back and connected to database again,
> but after a while ,the same problem happened again.
>
> So I can't do snapshot when the database hung. We collected the statspack
> every 15 minutes, but no useful info showed in it, because the hang just
> last a very short period.
>
> I run a monitor script to collect some infomation such as machine name ,
> hash value , wait event from v$session_wait and v$session view tables. I got
> the hash value from v$session, but I can't get the sql text. So I still
> don't know what's the root cause.
>
> The hash value seems is realated to "table_4_2000_f4e_0_0_0" , but not
> related to the original sql text.
>
> Why v$session view record this hash value? I think it should record the hash
> value related to the original sql text.
>
>
> --
> Eagle Fan
>
> Oracle DBA
>
>
> Fyrirvari/Disclaimer
> http://www.landsbanki.is/disclaimer

-- 
Yury
+44 7738 013090 (GMT)
============================================
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Received on Mon Jun 19 2006 - 05:20:19 CDT

Original text of this message

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