Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

nfs slow response  on linux

Posted on 2011-03-18
5
679 Views
Last Modified: 2012-05-11
We are running some of the application and response time is very slow when it try to access NFS share

10.1.1.65:/mnt/app  /app nfs rsize=8192,wsize=8192

I can see the following option on /etc/fstab,  I'm not sure what is resize and wsize option does? Does it provide better perfomance?
0
Comment
Question by:mokkan
5 Comments
 
LVL 34

Assisted Solution

by:Seth Simmons
Seth Simmons earned 166 total points
ID: 35167847
0
 
LVL 12

Accepted Solution

by:
upanwar earned 167 total points
ID: 35170295
unmount the filesystem /app and remount manually with command line as follows.

# umount /app

# mount -t nfs 10.1.1.65:/mnt/app  /app

then test and update us if it enhnace the performance or increase the speed.

0
 
LVL 6

Assisted Solution

by:jghelfman40
jghelfman40 earned 167 total points
ID: 35174242
Your read and write size are way too small, and more than likely that is your issue. Unmount your filesystem that is mounted remotely, and remount them with these options:

rsize=32768,wsize=32768

If this doesn't make things better, please let me know, and I can suggest more mount options that could improve, but at a minimum, try as I noted above.
0
 

Author Closing Comment

by:mokkan
ID: 35315425
Thank you guys.  Changing to bigger value helped the performance.
0
 
LVL 6

Expert Comment

by:jghelfman40
ID: 35317088
How is the solution not changing to the bigger value, however it is the asssited solution? Just wondering why a simple mount/umount was the accepted solution? This seems backwards to me. Thanks, and happy it  worked!
0

Featured Post

Master Your Team's Linux and Cloud Stack

Come see why top tech companies like Mailchimp and Media Temple use Linux Academy to build their employee training programs.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

rdate is a Linux command and the network time protocol for immediate date and time setup from another machine. The clocks are synchronized by entering rdate with the -s switch (command without switch just checks the time but does not set anything). …
I. Introduction There's an interesting discussion going on now in an Experts Exchange Group — Attachments with no extension (http://www.experts-exchange.com/discussions/210281/Attachments-with-no-extension.html). This reminded me of questions tha…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

765 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question