DNS service on 2003 R2 DC - RAM usage increases and eventually hangs

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i have 2 domain controllers running on 2003 r2 sp2 x86, patched, running dns service (dns.exe shows file version 5.2.3790.4460). dns service on 1 of them started hanging, requiring service restarted. perfmon can watch memory usage increase linearly, , service hangs. problem server has fsmo roles, , domain has 1 site , 1 domain, @ 2003 native level. in dns there 1 ad-integrated zone, ad domain, , 2 secondary domains. these 2 servers use 2500 (peak) clients name resolution, service hangs various times throughout day , night. no forwarders configured on servers, , root hints date.

the event log on problem server had few memory errors, event id 7502: "the dns server unable service client request due shortage of available memory.  close applications not in use or reboot computer free memory." ram in server upgraded (1gb 2gb), , 7502 error went away, ram usage dns still increases , crashes. on second dc memory usage dns stays flat, around 300mb, , there have been no problems. hardware of 2 dcs identical, 2 physical dell servers, except ram upgrade on problem server.

event logging on dns server properties set "all events" there nothing in dns event log, other aforementioned memory errors (that appear have disappeared). there id 5504 informational entries regarding invalid domain names, , occasional id 3000 warnings numerous run-time events. dns service hangs without warning.

i'm not sure how go troubleshooting further. suggestions?

hi kirk,

 

thanks posting here.

 

could check if had installed hotfix 941672 on server?

if yes, according description , suspect might known issue , fixed install hotfix patch 975830.

please check if worked , post .

 

the memory usage of dns.exe process keeps increasing after install hotfix 941672 on computer running windows server 2003 sp2 , has dns server role installed

http://support.microsoft.com/kb/975830/en-us

 

thanks.

 

tiger li

 

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if have feedback on our support, please contact tngfb@microsoft.com

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Windows Server  >  Network Infrastructure Servers



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