Oracle-L: Re: RE: Row level security and latch waits

From: <rgaffuri_at_cox.net>
Date: Tue, 19 Aug 2003 09:39:31 -0800
Message-ID: <F001.005CB8DE.20030819093931@fatcity.com>

im fairly certain its because DBMS_RLS doesnt use bind variables now. latch waits indicates plus your 100 concurrent users.

you can check this by going to v$sqlarea and checking for similiar sql_text statements. if they are there, then your not using bind variables. there is a query in tom kytes book. not sure where it is on the web now that wrox is out of business. its probably on asktom though.
>
> From: "Jamadagni, Rajendra" <Rajendra.Jamadagni_at_ESPN.COM>
> Date: 2003/08/19 Tue AM 11:49:25 EDT
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Subject: RE: Row level security and latch waits
>
> sorry .... this is 9202 and little less than 100 users.
>
> Raj
> ----------------------------------------------------------------------------
> ----
> Rajendra dot Jamadagni at nospamespn dot com
> All Views expressed in this email are strictly personal.
> QOTD: Any clod can have facts, having an opinion is an art !
>
> -----Original Message-----
> Sent: Tuesday, August 19, 2003 11:40 AM
> To: Multiple recipients of list ORACLE-L
>
>
> I've developped 3 functions for fined-grain access control and the users
> have tested them.
> There are only 3-4 users in the acceptance env. and I did not noticed
> anything.
>
> What version are you running and how many users ?
> We're on 8172
>
> Someday it will go in production here...
>
>
>
>
> Stephane Paquette
>
>
> Administrateur de bases de donnees
>
> Database Administrator
>
> Standard Life
>
> www.standardlife.ca
>
> Tel. (514) 499-7999 7470 and (514) 925-7187
>
> stephane.paquette_at_standardlife.ca <mailto:stephane.paquette_at_standardlife.ca>
>
>
>
>
> -----Original Message-----
> Jamadagni, Rajendra
> Sent: Tuesday, August 19, 2003 11:19 AM
> To: Multiple recipients of list ORACLE-L
>
>
>
> hi all,
>
> in the latest code release, a group implemented RLS and since then spotlight
> is constantly flagging 'latch waits' in the system. Yesterday the latch
> waits were upwards of 90%.
>
> Most active sessions seem to run the policy function defined as part of RLS.
> The worst part was all this wait was only on one node, the other node was
> healthy.
>
> While we are trying to capture more information, anything else that we can
> do? Any ideas? TIA
>
> Raj
> ----------------------------------------------------------------------------
> ----
> Rajendra dot Jamadagni at nospamespn dot com
> All Views expressed in this email are strictly personal.
> QOTD: Any clod can have facts, having an opinion is an art !
>
>
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>

Row level security and latch waits

sorry .... this is 9202 and little less than 100 users.

Raj

--------------------------------------------------------------------------------
Rajendra dot Jamadagni at nospamespn dot com
All Views expressed in this email are strictly personal.
QOTD: Any clod can have facts, having an opinion is an art !

-----Original Message-----
From: Stephane Paquette [mailto:stephane.paquette@standardlife.ca]
Sent: Tuesday, August 19, 2003 11:40 AM
To: Multiple recipients of list ORACLE-L
Subject: RE: Row level security and latch waits

I've developped 3 functions for fined-grain access control and the users have tested them.

There are only 3-4 users in the acceptance env. and I did not noticed anything.

What version are you running and how many users ?

We're on 8172

Someday it will go in production here...

Stephane Paquette

Administrateur de bases de donnees

Database Administrator

Standard Life

www.standardlife.ca

Tel. (514) 499-7999 7470 and (514) 925-7187

stephane.paquette@standardlife.ca

-----Original Message-----
From: ml-errors@fatcity.com [mailto:ml-errors@fatcity.com]On Behalf Of Jamadagni, Rajendra
Sent: Tuesday, August 19, 2003 11:19 AM
To: Multiple recipients of list ORACLE-L
Subject: Row level security and latch waits

hi all,

in the latest code release, a group implemented RLS and since then spotlight is constantly flagging 'latch waits' in the system. Yesterday the latch waits were upwards of 90%.

Most active sessions seem to run the policy function defined as part of RLS. The worst part was all this wait was only on one node, the other node was healthy.

While we are trying to capture more information, anything else that we can do? Any ideas? TIA

Raj
--------------------------------------------------------------------------------
Rajendra dot Jamadagni at nospamespn dot com
All Views expressed in this email are strictly personal.
QOTD: Any clod can have facts, having an opinion is an art !

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Received on Tue Aug 19 2003 - 12:39:31 CDT