App regular pool recycling that occur twice

IIS7 on Server 2008

Application pool - fx .NET 4.0, integrated mode, Idle Time Out = 0, is set to recycle once a day at 10:00. Maximum working process = 1.

At the scheduled time, that the application pool is recycled twice, both times with the event ID 5076 record in the event log. The application pool has 2 different process ID.

That is to say

09:59:58

A work process with the process id of the application pool '9076' service 'WBOffice' asked a new round because it has reached its time to regular recycling.

and at 10:00

A worker process with process id of '12088' serving application pool 'WBOffice' asked a new round because it has reached its time to regular recycling.

Anyone knows why is this?


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Tags: Windows

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