Event ID - 9038

Event Id9038
SourceMSExchangeIS Public
DescriptionNo database session was available to satisfy a request.The registry value SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersPublic\ Sessions may be set too low for the level of activity on this server.
Event InformationAccording to Microsoft:
This event ID is caused by slow response times from calls made to JET by the information store. By default, the information store opens 60 JET tables during initialization. In some cases this may not be adequate. An error from the MSExchangeIS warning that the number of tables should be increased on the specific server receiving the error.
1. Highlight the ParametersPrivate key. From the Edit menu, select Add Value. Add Value Name of "Sessions" and select Data Type as REG_DWORD. Select OK. Add value of 70 in Data dialog box and select Decimal. Choose OK.
2. Restart the MSExchangeIS.
If this Event ID occurs again you will want to increase the sessions again until the error has been eliminated. Each Jet table that is opened will consume additional RAM on the machine so you will not want to configure this beyond what is necessary to avoid the error.
Reference LinksAdvising Increased JET Tables

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