[389-users] Re: ldap dbmon output questions

On 04/25/2016 01:24 PM, ghiureai wrote:

Hello List,
I am running some  search performance tests , basic ldapsearch augument "cn" , on  local ldap host with rsearch, and
seeing  readwaiters:  values chainng , here is a sample from dbmon

This is not from dbmon.  This is from cn=monitor: https://access.redhat.com/documentation/en-US/Red_Hat_Directory_Server/10/html/Configuration_Command_and_File_Reference/Core_Server_Configuration_Reference.html#cnmonitor

currentconnections: 41
totalconnections: 6407
currentconnectionsatmaxthreads: 0
maxthreadsperconnhits: 0
dtablesize: 8192
readwaiters: 9
opsinitiated: 41305380
opscompleted: 41305371
entriessent: 48910644
bytessent: 3952907569
currenttime: 20160425192119Z
starttime: 20160425025259Z
nbackends: 2
backendmonitordn: cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config
backendmonitordn: cn=monitor,cn=NetscapeRoot,cn=ldbm database,cn=plugins,cn=co
 nfig


I read the documentation for dbmon output but still need to understand what can generate this  process to wait (  the search ldap is runn locally on host), I there anything can be tune in ldap cfg  to
have this redwaiters number close to null ?
 LDAP  version:

389-ds-base-1.3.4.4-000.x86_64
389-ds-console-1.2.12-000.noarch

readwaiters is the number of connections that are reading a client operation, as opposed to connections that are open but idle.

There isn't any tuning specifically for readwaiters.  Why do you think you need to do something about it?

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