Sponsored Content
Operating Systems Linux how to trace iowait to a certain process Post 302234452 by will_mike on Tuesday 9th of September 2008 05:58:06 PM
Old 09-09-2008
Thanks Jim,

The box is Oracle DB, and the iowaits ~100% usually happen when backup agent runs. It is pretty steady. I want to be certain that it is the process which causes high iowait to have strong argument for Symantec techsupport guys
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

excessive IOWAIT

i have a server constantly have high iowait, but i am not able to tell which process generate the most of io. none commands, such as iostat, sar, top will give me this kind of information. hope there is some command can help me to spot the process generate the most of io let to know input... (1 Reply)
Discussion started by: giantpanda77
1 Replies

2. UNIX for Advanced & Expert Users

How to reduce IOWAIT in linux

Hi All, Any ideas how to reduce IOWAIT and increase disk speed on Linux server. Server has 4 CPUs and with 8GB RAM. Thanks in advance, Regards, Bache (3 Replies)
Discussion started by: bache_gowda
3 Replies

3. AIX

Trace the process responsible for locking filesystem ?

Hi, Sometimes when I want to unmount some filesystem I get "The requested resource is busy." error. In such a case I try to find and kill process that uses that filesystem. I do that on random. Is there a right way to find whitch prosesses use filesystem resource at given time ? thanks... (1 Reply)
Discussion started by: vilius
1 Replies

4. Solaris

Help to trace process consuming more space

Hi all, We have a server having much processes running. It is very difficuilt to trace the exact consuming more memory. Howerver, it shows CPU usage in sequence but how memory? Tried working with TOP command. Please let me know if something not clear. Thanks, Deepak (5 Replies)
Discussion started by: naw_deepak
5 Replies

5. UNIX for Advanced & Expert Users

How to trace an AIX Process?

Hello, I execute an application on my Unix AIX Server and that one crashes after reading some files. These files are very big (80 Mbytes), the application is a CVS Repository. I have found with a comparaison on a Solaris Server that there are system limitations on my AIX Server in the... (2 Replies)
Discussion started by: steiner
2 Replies

6. AIX

How to trace cpu/memory usage for a process

I don't know when the process will start and end, I need write a script to trace it's cpu/memory usage when it is runing. How to write this script? (2 Replies)
Discussion started by: rainbow_bean
2 Replies

7. Linux

Trace an extinct process

Hi gurus, Just wanted to know if there is any way to trace the PID of a process that has already completed it's job and exited. My tomcat server was found in a hung state and we restarted it. Now we have found that someone has ran a kill -9 "pid" and wanted to know if it is the PID of tomcat.... (1 Reply)
Discussion started by: Hari_Ganesh
1 Replies

8. Shell Programming and Scripting

Script to monitor IOwait

Hello, I need to monitor IOwait on a server and have started this script directly on the ssh prompt. Effectively it almost does what it is supposed to do, but I have no idea how to stop it? How can I make it run it as a file based bash script? ( iostat -xk 1 /dev/sdb2 | \ perl... (10 Replies)
Discussion started by: cuantica
10 Replies

9. UNIX for Advanced & Expert Users

Trace Process performance Using PID

Hi, i want to track a process using its PID in SOLARIS. i have a code in C++ , which memory is increasing steeply increasing every 20 days, from the code i couldn't see any memory leak. is there any way in UNIX where with the help of PID i can trace the Process usage evry hour. ... (3 Replies)
Discussion started by: senkerth
3 Replies

10. UNIX for Beginners Questions & Answers

Some trace file to track timings of a process

I will initiate a process from Server1 and the flow is as follow Server1 --> Web server --> Application server --> DB Server Note all seperate unix servers. Now I need to put a trace for that process to track the timings from each server. Like the below trace should be there: ... (5 Replies)
Discussion started by: saraperu
5 Replies
DBIx::Class::Storage::DBI::Oracle::WhereJoins(3)	User Contributed Perl Documentation	  DBIx::Class::Storage::DBI::Oracle::WhereJoins(3)

NAME
DBIx::Class::Storage::DBI::Oracle::WhereJoins - Oracle joins in WHERE syntax support (instead of ANSI). PURPOSE
This module is used with Oracle < 9.0 due to lack of support for standard ANSI join syntax. SYNOPSIS
DBIx::Class should automagically detect Oracle and use this module with no work from you. DESCRIPTION
This class implements Oracle's WhereJoin support. Instead of: SELECT x FROM y JOIN z ON y.id = z.id It will write: SELECT x FROM y, z WHERE y.id = z.id It should properly support left joins, and right joins. Full outer joins are not possible due to the fact that Oracle requires the entire query be written to union the results of a left and right join, and by the time this module is called to create the where query and table definition part of the SQL query, it's already too late. METHODS
See DBIx::Class::SQLMaker::OracleJoins for implementation details. BUGS
Does not support full outer joins. Probably lots more. SEE ALSO
DBIx::Class::SQLMaker DBIx::Class::SQLMaker::OracleJoins DBIx::Class::Storage::DBI::Oracle::Generic DBIx::Class AUTHOR
Justin Wheeler "<jwheeler@datademons.com>" CONTRIBUTORS
David Jack Olrik "<djo@cpan.org>" LICENSE
This module is licensed under the same terms as Perl itself. perl v5.18.2 2013-07-12 DBIx::Class::Storage::DBI::Oracle::WhereJoins(3)
All times are GMT -4. The time now is 10:00 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy