Having too many connections could affect performance ? Post: 302991504

Sponsored Content

Special Forums UNIX and Linux Applications Having too many connections could affect performance ? Post 302991504 by bakunin on Sunday 12th of February 2017 03:42:32 AM

02-12-2017

Registered User

Quote:

Originally Posted by alexcol

So Could you tell me if below theories could affect Performance ?

I run netstat command and displays more than 102 connections some of them established state, some of them time wait, etc. So the question is having many connections could affect the performance of the application?
If I killed and restart connections would be a good idea to improve performance?
Having one or more Filesystem backups could affect Performance too ?

Many network connections might affect performance, but right now it isn't even established if you have "many" of them. Connections in the stated of "TIME_WAITING" will not contribute to the load at all and your suggested solution of killing and restarting connections would definitely not help at all.

Running filesystem backups could very well degrade performance but if that is the case or not we can't say.

Quote:

Originally Posted by alexcol

T
which administrative commands can i use besides top for finding the stumbling blocks you mention and taking account the OS is obsolete ?

You might want to read this little introduction to performance tuning i wrote. Most of the tools mentioned there should work for you and most of the concepts explained there should apply to your server.

I hope this helps.

bakunin

bakunin

View Public Profile for bakunin

Find all posts by bakunin

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

changig uid and the affect it will have

Hello, I have 2 sun servers. We are running Oracle apps. We have to apply patches to both servers whenever a patch needs to be applied for Oracle. We use the same username eg. applmgr on both servers. We have a shared patch area which we can run the patch from on both boxes. the uid for...

2. Solaris

making new default gateway take affect

How do you make the changes take affect when you change the subnet masks or default router without rebooting?

3. Shell Programming and Scripting

affect variable

hi , i want to store variable but i get always error when i excute this command ligne : var = awk '{print $1}' file1 echo $var how can i store the var? thanks

4. Solaris

Will Password change affect authorized_keys?

Hello gurus, I have question. I have enabled ssh on the servers. I am planning to change the oracle user's(os user) password. If I change the password will it affect the authorized_keys? Do I need to regenerate it. Thanks,

5. UNIX for Dummies Questions & Answers

.profile - changes don't affect the login

I have modified the .profile in my profile and I don't see any effect. Why the changes don't have effect? I tried both on the account at a server where I have limited permissions as user and to my local pc (as user). Is it the .profile overridden by some other file? It looks weird because I...

6. Solaris

Will creating symbolic links affect users

Hi, I have a quick question with regards to creating symbolic links. Would creating a symbolic link from one directory to a file in another cause any issues for users that are currently logged into the box. I don't believe it will unless they are using the file in question, but I would like...

7. Shell Programming and Scripting

affect a exploded a string into an array

I would like to affect an exploded string into an array. one:two::fourinto an array: a => one a => two a => a => four Quite simple in other languages with functions like explode() or split(). The best I could come up with was this: until do token=${string%%:*} # takes the...

8. Shell Programming and Scripting

Bash script affect load average

Hello I have created next scritpt to do the next: chekp if host is alive. When the host down, launch telnet other equip to do checks. When execute the script the load average of the machines increase. For example: Before launch script top - 11:14:56 up 14 days, 18:06, 3 users, load...

LEARN ABOUT CENTOS

mrtg2pcp

MRTG2PCP(1)						       Performance Co-Pilot						       MRTG2PCP(1)

NAME

       mrtg2pcp - Import mrtg data and create a PCP archive

SYNOPSIS

       mrtg2pcp hostname devname timezone infile outfile

DESCRIPTION

       mrtg2pcp is intended to read an MRTG log file as created by mrtg(1) and translate this into a Performance Co-Pilot (PCP) archive with the
       basename outfile.  The hostname, devname, and timezone arguments specify information about the system for which the statistics were
       gathered.

       The resultant PCP achive may be used with all the PCP client tools to graph subsets of the data using pmchart(1), perform data reduction
       and reporting, filter with the PCP inference engine pmie(1), etc.

       A series of physical files will be created with the prefix outfile.  These are outfile.0 (the performance data), outfile.meta (the metadata
       that describes the performance data) and outfile.index (a temporal index to improve efficiency of replay operations for the archive).  If
       any of these files exists already, then mrtg2pcp will not overwrite them and will exit with an error message of the form

       __pmLogNewFile: "blah.0" already exists, not over-written

       mrtg2pcp is a Perl script that uses the PCP::LogImport Perl wrapper around the PCP libpcp_import library, and as such could be used as an
       example to develop new tools to import other types of performance data and create PCP archives.

SEE ALSO

       logimport(3), PCP::LogImport(3pm), pmchart(1), pmie(1) pmlogger(1).

3.8.10							       Performance Co-Pilot						       MRTG2PCP(1)