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Buffer Busy wait [message #302819] Wed, 27 February 2008 01:51 Go to next message
pokhraj_das
Messages: 64
Registered: February 2008
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Hi,

I am getting frequently Buffer busy waits messeges at log file.

Could anyone let me know why this is happening?

Pokhraj
Re: Buffer Busy wait [message #302820 is a reply to message #302819] Wed, 27 February 2008 01:56 Go to previous messageGo to next message
Michel Cadot
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You are often using the same blocks by concurrent sessions.

Regards
Michel

[Updated on: Wed, 27 February 2008 01:57]

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Re: Buffer Busy wait [message #302825 is a reply to message #302819] Wed, 27 February 2008 02:10 Go to previous messageGo to next message
pokhraj_das
Messages: 64
Registered: February 2008
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what is the solution for the same? is there is any permanent solution ? Should I tune the query or I have to change any particular parameter?

Pokhraj

Re: Buffer Busy wait [message #302827 is a reply to message #302825] Wed, 27 February 2008 02:12 Go to previous messageGo to next message
Michel Cadot
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OracleŽ Database Performance Tuning Guide
Chapter 10 Instance Tuning Using Performance Views
Section 10.3 Wait Events Statistics
Subsection 10.3.2 buffer busy waits

Regards
Michel

[Updated on: Wed, 27 February 2008 02:13]

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Re: Buffer Busy wait [message #302903 is a reply to message #302827] Wed, 27 February 2008 05:37 Go to previous messageGo to next message
pokhraj_das
Messages: 64
Registered: February 2008
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This is the document related about 10g. If check you can see that my Database is oracle 9i.

Any related documents for 9i?

Pokhraj
Re: Buffer Busy wait [message #302905 is a reply to message #302903] Wed, 27 February 2008 05:46 Go to previous messageGo to next message
NandKumar
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Registered: June 2007
Location: v$hyderabad
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The below link was at the top when I searched google.

http://download-uk.oracle.com/docs/cd/A97630_01/server.920/a96533/instance.htm#16396

hope this helps
Re: Buffer Busy wait [message #302919 is a reply to message #302903] Wed, 27 February 2008 06:09 Go to previous messageGo to next message
Michel Cadot
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It does not matter, it is the same thing in 9i.
In addition, you had the name of the book, the name of the chapter, you should be able to find the information for 9i.
If this is impossible for you then you can now stop trying to find why there are performances problems in your database, it is beyond your skills.

Regards
Michel
Re: Buffer Busy wait [message #303121 is a reply to message #302919] Thu, 28 February 2008 01:04 Go to previous messageGo to next message
pokhraj_das
Messages: 64
Registered: February 2008
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Who told u Michel, that that it is same as oracle 9i. If it is same then there is no need to use 10g database,instead everyone will use 9i.I am using 9i DB, thats why i asked for 9i reference.

And one more thing who are you to judge whether it is beyond my skill or not. I raised a request through forum. If you have no proper explanation for "buffer busy wait" then please dont sent me all these junk mails to me anymore.

Thanx

Pokhraj.
Re: Buffer Busy wait [message #303124 is a reply to message #303121] Thu, 28 February 2008 01:17 Go to previous messageGo to next message
Michel Cadot
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I didn't judge, there is a logical sentence, if ... then ..., you are the lone one to judge if the first part and then the second part are true.
Another one, if you don't understand this is a logical sentence then computer science is beyond your skills.

And I gave you the answer about "buffer busy waits" but if you don't want I give you answers it's up to you.

Regards
Michel
Re: Buffer Busy wait [message #303134 is a reply to message #303121] Thu, 28 February 2008 01:52 Go to previous messageGo to next message
trantuananh24hg
Messages: 668
Registered: January 2007
Location: Ha Noi, Viet Nam
Senior Member
Quote:

Who told u Michel, that that it is same as oracle 9i. If it is same then there is no need to use 10g database,instead everyone will use 9i.I am using 9i DB, thats why i asked for 9i reference.



What do you understand about buffer busy wait?
If it's not same as 9i, let prove some point, okay?
Re: Buffer Busy wait [message #303146 is a reply to message #303121] Thu, 28 February 2008 03:00 Go to previous messageGo to next message
pablolee
Messages: 2834
Registered: May 2007
Location: Scotland
Senior Member
[soapbox]
Quote:
Who told u Michel, that that it is same as oracle 9i.
I would suggest that Michel has read the documentation from both versions and actually worked extensively on databases of both versions. So Oracle and his own experience told him.
Quote:
If it is same then there is no need to use 10g database,instead everyone will use 9i.I am using 9i DB
This is clearly an inherent misunderstanding in what Michel was trying to say. The way that I read Michel's post is:
"The concept of Buffer Busy Waits is exactly the same between version 9i and 10g" (Please correct me if I'm wrong Michel). He, in no way, said or implied that 9i and 10g are the same and it would take someone pretty obtuse to glean that implication from what he said.
Quote:
thats why i asked for 9i reference.
You must be either very lazy or extremely dim.
Either
1. You could not be bothered to even do a google search on 9i documentation (you could even have removed the latter part of the url to get to the root of where Michel was sending you and from there work out he 9i root)
OR
2. You did not have the level of intelligence to work out how to do the above.
Quote:
And one more thing who are you to judge whether it is beyond my skill or not. I raised a request through forum. If you have no proper explanation for "buffer busy wait" then please dont sent me all these junk mails to me anymore.
I am continually amazed at the cr4ppy attitude of people who post and don't get spoon fed the exact answer, but rather are expected to show some level of effort, commitment and intelligence by trying to work out for themselves the answer based on hints and tips provided by people who are familiar with the concepts that they are asking about, and providing free and (usually) excellent assistance. Instead, they would rather start a flame war, and demand that they be given the exact solution (usually to problem that they have not described well enough to actually give an answer to).
It is for anyone to judge "whether it is beyond my skill or not" because it is an opinion and this is the World Wide Web, where people are allowed and positively encouraged to voice their opinions, just as I have done in this post.
You don't like it? Tough, ask for a refund.
[/soapbox]
Re: Buffer Busy wait [message #303176 is a reply to message #303146] Thu, 28 February 2008 04:26 Go to previous messageGo to next message
pokhraj_das
Messages: 64
Registered: February 2008
Member

I think you guys are making much drama....
Lets leave these matters ......
Not very much impressed bout these forums...
Re: Buffer Busy wait [message #303178 is a reply to message #303176] Thu, 28 February 2008 04:30 Go to previous messageGo to next message
Michel Cadot
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Quote:
Not very much impressed bout these forums

Although you got your answer in a couple of minutes?
If you find more efficient tell me where, I'm ready to pay for it.

Regards
Michel
Re: Buffer Busy wait [message #303182 is a reply to message #303178] Thu, 28 February 2008 04:37 Go to previous messageGo to next message
pokhraj_das
Messages: 64
Registered: February 2008
Member

Yes I got the answer from one of the senoir member who was questioning bout the capabilities of junior member..without resolving the actual problem.... and one link related to 10g... Thats sounds good.....also some flaming quotes from others members instead of giving the proper solution...

Even if you ready to pay it,I wont give you that link coz again I dont want any drama over there..
Thanx
Re: Buffer Busy wait [message #303184 is a reply to message #303176] Thu, 28 February 2008 04:38 Go to previous messageGo to next message
trantuananh24hg
Messages: 668
Registered: January 2007
Location: Ha Noi, Viet Nam
Senior Member
pokhraj_das

I think you guys are making much drama....



Tel me..
trantuananh24hg

What do you understand about buffer busy wait?



If you do not understand, Michel was trying to guide you, however, you're not seem adult, rather like a child!
Re: Buffer Busy wait [message #303213 is a reply to message #303121] Thu, 28 February 2008 07:26 Go to previous messageGo to next message
Mohammad Taj
Messages: 2412
Registered: September 2006
Location: Dubai, UAE
Senior Member

Who told u Michel, that that it is same as oracle 9i. If it is same then there is no need to use 10g database,instead everyone will use 9i.I am using 9i DB, thats why i asked for 9i reference.
Please tell me "Who told you, that "buffer busy wait" is not same in Oracle 9i & Oracle 10g Version".


Re: Buffer Busy wait [message #303276 is a reply to message #302819] Thu, 28 February 2008 11:07 Go to previous message
varu123
Messages: 754
Registered: October 2007
Senior Member
The fundamentals remains the same irrespective of any oracle version.
The concept of buffer is same if you read in oracle 7 or in 11g.
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