Having too many connections could affect performance ? Post: 302991307

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Special Forums UNIX and Linux Applications Having too many connections could affect performance ? Post 302991307 by alexcol on Wednesday 8th of February 2017 10:58:25 PM

02-08-2017

Registered User

Having too many connections could affect performance ?

Good evening, i need your help please

I will try to describe the scenario briefly: In a Telecom Production system application receives a certain files called CDRs(call detail records) to be processed by doing some operating systems operations and then database operations like creating indexes and uploading to a Central Database-

The applications server and database is quite obsolete OSF1 and oracle 9i.

Many times the applications turn very slow to process so performance is overheated. Of course There would be many causes for overheated performance, and it is premature to identify the problem at first glance.

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 ?

I appreciate your answers in advanced or if u have any other reason that could impact its performance let me know. Thanks

Last edited by rbatte1; 02-09-2017 at 05:19 AM.. Reason: Converted textual list to formatted numbered list and corrected spellings

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LEARN ABOUT CENTOS

pmusecontext

PMUSECONTEXT(3) 					     Library Functions Manual						   PMUSECONTEXT(3)

NAME

       pmUseContext - change current PMAPI context

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmUseContext(int handle);

       cc ... -lpcp

DESCRIPTION

       An  application	using  the  Performance Metrics Application Programming Interface (PMAPI) may manipulate several concurrent contexts, each
       associated with a source of performance metrics, e.g. pmcd(1) on some host, or an archive log of performance metrics as created	by  pmlog-
       ger(1).

       Calling	pmUseContext  causes  the  current  PMAPI  context to be set to the context identified by handle.  The value of handle must be one
       returned from an earlier call to pmNewContext(3) or pmDupContext(3).

       Below the PMAPI, all contexts used by an application are saved in their most recently modified state, so pmUseContext restores the  context
       to the state it was in the last time the context was used, not the state of the context when it was established.

SEE ALSO

       PMAPI(3), pmDestroyContext(3), pmDupContext(3), pmNewContext(3) and pmWhichContext(3).

DIAGNOSTICS

       PM_ERR_NOCONTEXT

	      handle does not identify a valid PMAPI context

Performance Co-Pilot							PCP							   PMUSECONTEXT(3)