Submit a ticketCall us

AnnouncementsFace your biggest database issues head-on

Our new eCourse helps you navigate SQL Server performance blocks by teaching you how to recognize and deal with the three DBA Disruptors: Performance Hog, Blame Shifter, and Query Blocker. Register today to learn how to defend your environment and fend off menacing disruptions.

Register for your free eCourse.

Home > Success Center > Kiwi Syslog Server > Kiwi Syslog Server Documentation > Kiwi Syslog Server Administrator Guide > Registry settings for Kiwi Syslog Server > DNSDisableWaitWhenBusy

DNSDisableWaitWhenBusy

Table of contents
No headers

Normally, if an IP address is not found in the DNS cache, the program will wait for a set period of time for the IP address to finish resolving. Under heavy load this delay can fill the message input buffer until it overflows and drops new messages.

Use this Kiwi Syslog Server registry setting to specify how full the input message buffer can get before disabling the DNS resolution waiting. By default, when the input buffer reaches more than 10% of capacity, the Syslog Server will stop waiting for the IP addresses to be resolved.

If you have preemptive lookup enabled, the IP addresses will still be resolved in the background and results placed in the cache. This option just disables the "DNS timeout" waiting period while the buffer is under load. This frees the program up so that it can process the buffered messages without waiting for resolutions to occur.

When the input buffer level drops below the set value, the normal resolution waiting timeouts will be re-enabled.

Section (32-bit Windows OS) HKEY_LOCAL_MACHINE\SOFTWARE\SolarWinds\Syslogd\Properties
Section (64-bit Windows OS) HKEY_LOCAL_MACHINE\Software\WOW6432Node\SolarWinds\Syslogd\Properties
Min value 0
Max value 100
Default value 10
Type Percentage
Last modified

Tags

Classifications

Public