Re: Row cache locks on INSERTs with a sequence

2002-12-22 Thread Jonathan Lewis

Correct -

I was sure that I had a set of test results to 
prove my point, but I didn't - so I've just run
a series of tests on  enqueue and buffer busy waits 
on an 8.1.7.4 system and you are absolutely right -
 the seconds_in_wait does not reset as the wait
completes.  

Thanks,

Jonathan Lewis
http://www.jlcomp.demon.co.uk

Coming soon a new one-day tutorial:
Cost Based Optimisation
(see http://www.jlcomp.demon.co.uk/tutorial.html )

Next Seminar dates: 
(see http://www.jlcomp.demon.co.uk/seminar.html )

England__January 21/23


The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html





-Original Message-
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Date: 22 December 2002 02:28


 It is a common error to assume that v$session_wait
 is showing a wait time - however if the STATE is 
 __not__ WAITING then the SECONDS_IN_WAIT
 column is the time since the last wait ended.

It's actually the time since the last wait *began*, right?


Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com

Upcoming events:
- Hotsos Clinic 101, Jan 7-9 Knoxville
- Steve Adams's Miracle Master Class, Jan 13-15 Copenhagen
- 2003 Hotsos Symposium, Feb 9-12 Dallas




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RE: Bizzare behaviour of set oracle_sid=mysid

2002-12-22 Thread Hemant K Chitale

You would be getting the TNS protocol adapter error if the instance hasn't been
started -- it is configured to start as a service.
Hemant
At 08:45 AM 19-12-02 -0800, you wrote:

Humm obivioiously Im missing a few brain cells here
Yes, I should know there isnt an exe called connect that would be native
to the envioriment outside of oracle.

Yes, there was a connect.bat in the path
Duh...

Ok, so lets see how many more vacant brain cells I have
 now if I log on to sql+ with a dba account (has all privilidges)

###
LOCDB SQL connect / as sysdba
Or
LOCDB SQL connect / internal

ERROR:
ORA-12560: TNS:protocol adapter error


Warning: You are no longer connected to ORACLE.

LOCDB SQL select * from global_name;
Not connected

###

Why does this happen?

The bottom line is Im trying to connect as internal w/o the password

###
C:\set oracle_sid=LOCDB

C:\svrmgrl

Oracle Server Manager Release 3.1.6.0.0 - Production

Copyright (c) 1997, 1999, Oracle Corporation.  All Rights Reserved.

Oracle8i Enterprise Edition Release 8.1.6.0.0 - Production
With the Partitioning option
JServer Release 8.1.6.0.0 - Production

SVRMGR connect internal
Password:

I can however connect internal/password

Thanks for being paitent

bob
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Hemant K Chitale
My web site page is :  http://hkchital.tripod.com


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Re: What Bonnie's benchmark should we expect for RAID 0+1

2002-12-22 Thread Hemant K Chitale

What is Bonnie's benchmark ?  Is it some standard test suite ?
Hemant
At 08:09 AM 19-12-02 -0800, you wrote:

Hello,

We have a Compaq AlphaServer 8400 with 8 GB RAM, 8 dual 625mhz CPUs and
two HSZ70 Array Controllers. Each Controller is connected to 24 36GB
10K rpm Ultr SCSI disk divers. In the system, some volums are
configured as RAID 1, and the others are configured as RAID 0+1
with 3 striping. However, we can't see significant performance
improvement in RAID 0+1 volums except random seek. The following are
the Bonnie's benchmarks for two kinds of volums:

For RAID 1:

  ---Sequential Output ---Sequential Input--
--Random--
  -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
MachineMB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
RAID11024  9029 55.1  9108 14.3  8956 15.6 15700 89.4 115531 99.9 2535.2
65.9

For RAID 0+1:

  ---Sequential Output ---Sequential Input--
--Random--
  -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
MachineMB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
RAID01   1024  9780 58.8  9872 17.1 14067 25.7 15990 89.7 56037 59.5 5374.3
169.9

Is there something wrong? What Bonnie's benchmark should we expect
for RAID 0+1?

Thanks,
Tom
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Re: RE: help me find out why rac instance died

2002-12-22 Thread chao_ping
Thanks for your suggestion, i checked that article, but still unable to solve the 
problem.
The same time the next day, another instance in the cluster died, with the same 
reason. ora-29740, still with reason 2.
The cluster runs quite stable in the past month(since the patchset is installed, it is 
just about 30 days).
When i check the linux /var/log/messages, i found at the exact same time, syslogd 
restarted in both node in the two days , when rac instance died. Whould there be some 
relations between them?Unix did not rebooted ,I checked uptime value.
From the trace file, i found it said the dead instance failed to transfer heart beat:
first day, from the alive instace rac1:






*** 2002-12-21 04:01:54.227
kjxgrnbrisalive: (1, 2) not beating, HB: 479418910, 479418910
*** 2002-12-21 04:01:54.239
kjxgrnbrdead: Detected death of 1, initiating reconfig
kjxgrrcfgchk: Initiating reconfig, reason 2
*** 2002-12-21 04:01:59.256
kjxgmrcfg: Reconfiguration started, reason 2
kjxgmcs: Setting state to 6 0.
*** 2002-12-21 04:01:59.258
Name Service frozen
kjxgmcs: Setting state to 6 1.






from the trace file of the second day, from the alive instance rac2:




*** 2002-12-22 04:01:56.457
kjxgrnbrisalive: (0, 1) not beating, HB: 479438832, 479438832
*** 2002-12-22 04:01:56.457
kjxgrnbrdead: Detected death of 0, initiating reconfig
kjxgrrcfgchk: Initiating reconfig, reason 2
*** 2002-12-22 04:02:01.486
kjxgmrcfg: Reconfiguration started, reason 2
kjxgmcs: Setting state to 9 0.
*** 2002-12-22 04:02:01.495
Name Service frozen





I wonder if anyone here have the experience of dealing with rac system. What shall i 
check to verify why rac instance failed to update the controlfile. I already enabled 
event:
event=29740 trace name errorstack level 3 
in one instance.
shall i enable the undocumented parameter
_imr_active=false in the system? 

 Hi Chao:
 
 THe Instance 2 in your Cluster (rac2) was dead during
 the fast reconfiguration (Check the reason in the alert log
 file.. which says reason 2).  You generally do a reconfig
 (or fast reconfig) when you add/remove instances from the
 Cluster setup, which is not (I hope) in your case.
 
 THere are some kernel events to trace the reconfigurations,
 and an underscore parameter (I think it is _imr_active !)
 to disable the 29740 usually not recommended.
 
 For investigation , review the check point, LMON trace files
 and check the OS log files.
 
 
 
 
 Best Regards,
 K Gopalakrishnan
 
 
 
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6i FormServer socket or http

2002-12-22 Thread tony ynot
We have apps 11.5.6 and FS 6i patch 8 (6.0.8.17.1) and
we have been using
mode=socket because Oracle recommended that.  Now we
have another Oracle
support guy suggesting mode=http because we have some
users on our WAN in europe
who are saying the system is kind of slow.
Oracle says switching to http mode will make the WAN
users much happier.
Does anyone have any recommendations before we start testing?

__
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VB Objectives needed please !

2002-12-22 Thread guess who
I am facing lot of difficulties with out VB objective questions 
and Answers and oracle objective questions and Answers.Can any one 
help me by sending it

Its my humble request

Regards,
[EMAIL PROTECTED]



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RE: Happy Holidays

2002-12-22 Thread Arn Klammer
But how long did it take to wrap???   :-)

 [EMAIL PROTECTED] 21/12/2002 0:03:50 
This message has been scanned by MAILSweeper.



Speaking of house ... Congratulations !! 

Yesterday my wife and I celebrated our 5th wedding anniversary. I was
looking for what gift to give on a 5th anniversary. So my boss googled for a
while and said ... he found the gift and a nice gift as well. He says,
traditional gift is wood, so just give your wife the house you built.

That was easy ... no shopping involved and she already loves the gift.

Happy Holidays everyone !!
Raj
__
Rajendra Jamadagni  MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.

QOTD: Any clod can have facts, but having an opinion is an art!

-Original Message-
Sent: Thursday, December 19, 2002 4:39 PM
To: Multiple recipients of list ORACLE-L


Well I've got another excuse. We just moved into our newly constructed
house. I tell the kids that they get their own room for Christmas and they
just say, Oh Dad! So even though we're still living out of boxes I have to
got get more junk and put it in fancier boxes... very strange.



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Indentifying Redundant Indexes

2002-12-22 Thread Mark Richard
Dear List,

Firstly - Merry Christmas to those who have not already departed for the
holiday season.

I'm currently doing some investigation based around indexes and would like
everyone's opinion:  What is everyone's preferred approach to identify
redundant (as in never used by Oracle) indexes?  I believe Oracle 9 might
have a feature to set a flag on objects and then check back later to see if
they have been accessed however we're still stuck on 8.1.7.4 (Solaris).
Some of my thoughts include:

* Can query for physical disk i/o at a tablespace level easily, however
more difficult to go to an object level.

* Could create a trace file and then inspect explain plans for existence of
index accesses, however trace file probably not practical to capture for a
long period of time.

* Ideal statistic would be something along the lines of index x used y
times in last 24 hours, however a simple index x was used in the last 24
hours would be ok.

Obviously we are searching for indexes to remove and identifying those
which aren't queried over a set period of time would be good candidates for
a starting point.  Any advice you might have would be greatly appreciated.

Regards,
 Mark.


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RE: Out of topic -Unx question

2002-12-22 Thread Ross Collado
Not easily done in Unix.  However, if you've got an Oracle db running on the
same server you might want to get yesterday's date from Oracle (within a
shell script).

...
...
YESTERDAY=`sqlplus -s / -EOF
   set head off feed off pages 0
   select trunc(sysdate - 1) from dual;
   exit
   EOF`
echo YESTERDAY is $YESTERDAY
...
...


hth,
Ross

-Original Message-
Sent: Saturday, 21 December 2002 7:51
To: Multiple recipients of list ORACLE-L


Hi All,
  I want to get previous date from today's date.Is there any cmd for

this.

Thanks
Manoj

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RE: Indentifying Redundant Indexes

2002-12-22 Thread Cary Millsap
Mark,

The way we do it is by what you might call extreme brute force:

1. Capture all SQL from the applications (not just the stuff you've run
in the past month, but the stuff you'll run in the future too, like
period-end close processes, and so on).

2. Generate execution plans in production for all this SQL. Store the
plans.

3. In a structural replica system (that is, a full-schema test
instance; you don't need real application data, but you do need schema
and db statistics imported from the production system), drop the index.

4. Generate execution plans on the replica system for all the SQL. Store
the plans.

5. Compare the two sets of plans from steps 2 and 4.

6. Decide whether the different in 4 that are different from the plans
in 2 are better or worse than the plans in 2.

Like I said, it's a big hammer method, but it has its reliability
advantages, and the only step that we haven't automated is #6. (I'm
assuming that you already have a valid test system as described in #3.)
The tool we use that does steps 2, 4, and 5 is called Project Laredo
(www.hotsos.com/products/laredo).


Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com

Upcoming events:
- Hotsos Clinic 101, Jan 7-9 Knoxville
- Steve Adams's Miracle Master Class, Jan 13-15 Copenhagen
- 2003 Hotsos Symposium, Feb 9-12 Dallas


-Original Message-
Richard
Sent: Sunday, December 22, 2002 10:54 PM
To: Multiple recipients of list ORACLE-L

Dear List,

Firstly - Merry Christmas to those who have not already departed for the
holiday season.

I'm currently doing some investigation based around indexes and would
like
everyone's opinion:  What is everyone's preferred approach to identify
redundant (as in never used by Oracle) indexes?  I believe Oracle 9
might
have a feature to set a flag on objects and then check back later to see
if
they have been accessed however we're still stuck on 8.1.7.4 (Solaris).
Some of my thoughts include:

* Can query for physical disk i/o at a tablespace level easily, however
more difficult to go to an object level.

* Could create a trace file and then inspect explain plans for existence
of
index accesses, however trace file probably not practical to capture for
a
long period of time.

* Ideal statistic would be something along the lines of index x used y
times in last 24 hours, however a simple index x was used in the last
24
hours would be ok.

Obviously we are searching for indexes to remove and identifying those
which aren't queried over a set period of time would be good candidates
for
a starting point.  Any advice you might have would be greatly
appreciated.

Regards,
 Mark.



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Opinions, conclusions and other information in this message
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RE: Out of topic -Unx question

2002-12-22 Thread Richard Ji
Search the archive of this list.  This has been discussed before.

You can use a trick such as this:

yesterday=$(TZ=EST26EDT date +%a)

but beaware that this is not a portable solution.  You can write
your own script.  E-mail me off line and I can send you mine yesterday
script.

-Original Message-
Sent: Monday, December 23, 2002 12:09 AM
To: Multiple recipients of list ORACLE-L


Not easily done in Unix.  However, if you've got an Oracle db running on the
same server you might want to get yesterday's date from Oracle (within a
shell script).

...
...
YESTERDAY=`sqlplus -s / -EOF
   set head off feed off pages 0
   select trunc(sysdate - 1) from dual;
   exit
   EOF`
echo YESTERDAY is $YESTERDAY
...
...


hth,
Ross

-Original Message-
Sent: Saturday, 21 December 2002 7:51
To: Multiple recipients of list ORACLE-L


Hi All,
  I want to get previous date from today's date.Is there any cmd for

this.

Thanks
Manoj

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Re: Re: RE: help me find out why rac instance died

2002-12-22 Thread chao_ping
Thanks for friends, 
I found the reason of my rac down.There is a cron that runs daily to sync the 
time with the time server. My sa added it without telling me.
And if i set the time back in one node, the instance on another node went 
down, with the same trace information. I tested it today.
Thanks.





Regards
zhu chao
msn:[EMAIL PROTECTED]
www.happyit.net
www.cnoug.org(ChinaOracle User Group)

=== 2002-12-23 00:38:00 ,you wrote£º===

Thanks for your suggestion, i checked that article, but still unable to solve the 
problem.
The same time the next day, another instance in the cluster died, with the same 
reason. ora-29740, still with reason 2.
The cluster runs quite stable in the past month(since the patchset is installed, it 
is just about 30 days).
When i check the linux /var/log/messages, i found at the exact same time, syslogd 
restarted in both node in the two days , when rac instance died. Whould there be some 
relations between them?Unix did not rebooted ,I checked uptime value.
From the trace file, i found it said the dead instance failed to transfer heart beat:
first day, from the alive instace rac1:




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echo `date`

2002-12-22 Thread Ashraf Salaymeh
Dear List,

I have Korn shell Script that show the date of
execution.

echo `date` - Start shutdown of oracle DB.

Could any body tell me how to display this char `
the quotation for date.

I mean which key I have to press in Unix to get this 
quotation character.

I'm working with Unixware7.1 

Regards,
Ashraf

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