Hi All
We have Exchange 2010 SP1 RU5, w3wp.exe Utilizing 100 % CPU in CAS+HUB server, due to that all submission queue was increasing.
When I check the Event Log, I found the below warring but no cretical/error events.
Process w3wp.exe () (PID=2384). Object CN=NJPFGVMEXCH3,CN=Servers,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=domain,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=com was not found on the Domain Controller wcdc4.domain.com. This may indicate a replication or permission issue.
Process w3wp.exe () (PID=2384). An LDAP search result to Directory Server wcdc4.domain.com exceeded the administrative size limit. Only the first 100 entries were returned successfully by the search request. The search that failed has the following characteristics: Base DN=, Filter=(&(displayName=*)(|(objectCategory=person)(objectCategory=msExchDynamicDistributionList)(objectCategory=group)(objectCategory=publicFolder)(objectCategory=msExchPublicMDB)(objectCategory=msExchSystemMailbox)(objectCategory=msExchExchangeServerRecipient)(objectCategory=exchangeAdminService)(objectCategory=computer))(|(&(msExchVersion<=2251799813685248)(!(msExchVersion=2251799813685248)))(!(msExchVersion=*)))(anr=an)(showInAddressBook=*)(!(msExchHideFromAddressLists=TRUE))(showInAddressBook=<GUID=43089fbb-2103-453e-b97f-9e9711f25394>)(!(msExchCU=*))), Scope=2. If this message persists, you should use ntdsutil to increase the maximum page size on the Domain Controllers by increasing the value of the MaxPageSize LDAP policy.
I have verified using Process Explorer and its showing w3wp.exe and edgetransport.exe utilizing more CPU.
I have tried recyle the Activesync application pool but no luck. I have restarted the server still same issue.
I have collected the IIS logs to found whether any active sync user causing the problem, but no idea how to track it.
I have collected the dump file, can anyone explain me how to open dump file and track the issue?
Regards
Ganga Enterprise Messaging Administrator-Exchange 2010. Windows 2008 Active Directory Configuring.