Sponsored Content
Top Forums UNIX for Advanced & Expert Users Mailbox server performance issue Post 302639793 by gauravsharma29 on Sunday 13th of May 2012 07:49:30 AM
Old 05-13-2012
Mailbox server performance issue

Hi.

my company's mailbox server has severe performance issue on the days while full backup is running. There is huge I/O in another "mail replication process" for standby servers ( which runs all the time, every 15 mins. ).

specs of servers :- RHEL5.5 , kernel -2.6.18-53.1.6.el5 , 8 core Intel Xeon 2.66 GHz, 32 GB RAM.24 GB VM.

strangely I see

swappiness =0 ( proposing it to be 50 )

HugePages_Total: 0 ( proposing it to be 100 )
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB ( proposing it to be 4096 )


-- proposing to configure memlock for mailbox process as well .

Before proposing to higher management for change in these settings to an optimized value, I wanted to confirm and take suggestions about this issue and few other parameters which could be adjusted.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Performance issue

Hello all, I just stuck up in an uncertain situation related to network performance... I am trying to access one of my remote client unix machine from a distant location.. The client machine is Ultra-5_10 , with SunOS 5.5.1 The ndd result ( hme1 )shows that the machine is hooked to a... (5 Replies)
Discussion started by: shibz
5 Replies

2. AIX

performance issue

We have a AIX v5.3 on a p5 system with a poor performing Ingres database. We added one CPU to the system to see if this would help. Now there are two CPU's. with sar and topas -P I see good results: CPU usage around 30% with topas I only see good results in the process output screen, the... (1 Reply)
Discussion started by: rein
1 Replies

3. UNIX for Advanced & Expert Users

performance issue

Hi, on a linux server I have the following : vmstat 2 10 procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 0 4 0 675236 39836 206060 1617660 3 3 3 6 8 7 1 1 ... (1 Reply)
Discussion started by: big123456
1 Replies

4. Shell Programming and Scripting

performance issue

I want to read a file. is it good to use File I/O or shell script?? which one is the best option? (1 Reply)
Discussion started by: vishwaraj
1 Replies

5. UNIX for Advanced & Expert Users

Performance issue!

In my C program i am using very large file(approx 400MB) to read parts of it frequently. But due to large file the performance of the program goes down very badly. It shows very high I/O usage and I/O wait time. My question is, What are the ways to optimize or tune I/O on linux or how i can get... (10 Replies)
Discussion started by: mavens
10 Replies

6. Solaris

Performance issue

Hi Gurus, I am beginner in solaris and want to know what are the things we need to check for performance monitoring on our solairs OS. for DISK,CPU and MEMORY. Also how we do ipforwarding in slaris Many thanks for your help Pradeep P (4 Replies)
Discussion started by: ppandey21
4 Replies

7. AIX

Performance issue

Hi, We have 2 lpars on p6 blade. One of the lpar is having 3 core cpu with 5gb memory running sybase as database. An EOD process takes 25 min. to complete. Now we have an lpar on P7 server with entitled cpu capacity of 2 with 16 Gb memory and sybase as database. The EOD process which takes... (17 Replies)
Discussion started by: vjm
17 Replies

8. AIX

Performance issue

Hi We have an AIX5.3 server with application which is written in C. We are facing server (lpar) hangs intermediately. If we open new telnet window prompts for user and takes hell of a time to authenticate, not only that if we run ps -aef then also it takes lot of time. surprisingly there is no... (2 Replies)
Discussion started by: powerAIX
2 Replies

9. Post Here to Contact Site Administrators and Moderators

Can't POP the mails off the server, the mailbox is corrupt!

SCO OpenServer(TM) Release 5 (worf.xxx.com) Worf is my proxy Server, and it runs my Lan with windows PCs, wk2s & XPs. There are only two users who POP the mailbox from the Server to client, elena and me nancy! elena can POP her email mailbox is just fine. We use Eudora and for years we... (1 Reply)
Discussion started by: Nancy L
1 Replies

10. UNIX for Dummies Questions & Answers

Can't POP the mails off the server, the mailbox is corrupt!

First, please forgive me for my 2nd attempt to post in a Forum! And btw, the Code Tags tutorial has the fonts and the sizes, but when I am editing my post none of those fonts and sizes are not there! SCO OpenServer(TM) Release 5 (worf.xxx.com) Worf is our proxy & POP Server, and it... (7 Replies)
Discussion started by: Nancy L
7 Replies
newmail(1)						      General Commands Manual							newmail(1)

NAME
newmail - notify users of new mail in mailboxes SYNOPSIS
interval] [file-spec]... DESCRIPTION
The utility monitors your incoming mailbox or specified mail folders. The basic operation is that the program checks the folders each interval seconds (default 60) and lists any new mail that has arrived in any of the mailboxes, indicating the sender's name, and the subject of the message. Without any options, runs in the background at a default interval of 60 seconds to monitor the user's incoming mailbox. So that they are suitable for display on an already active screen, messages are prefixed with a pair of pointer characters as follows: If there is no subject, the message is displayed. If there is more than one folder, output lines are prefixed by the folder-name or the prefix string specified by file-spec. runs until you log out or explicitly kill it. It can internally reset itself if the mailbox shrinks in size and then grows again. Options recognizes the following options: Set the time interval between mailbox checks to the value specified, in seconds. The default is 60. interval must be less than 2^32 seconds. If it is set to less than 10 seconds, warns that such short intervals are not recommended. Run the program within the current window in the foreground with a more succinct output format. The output formats become: Operands recognizes the following operand: file-spec Specifies the name of a folder and an optional prefix string, in the form: Metacharacters such as and indicate the folder directory. The default is the value of the environment variable or EXAMPLES
Check incoming mailbox every 60 seconds: Check incoming mailboxes of and every 15 seconds for new messages. Monitor the incoming mailbox of user and the folder in your mail directory called Prefix all new messages in the incoming mailbox of with the string and the new messages in the folder with Also, monitor folder AUTHOR
was developed by HP. newmail(1)
All times are GMT -4. The time now is 08:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy