After performing the Exchange 2013 update to CU5, we have been noticing that some of the active monitoring logs are randomly clearing. Specifically the Throttling Config, Responder Definition, Monitor Definition, Probe Definition, and Maintenance
Definition logs. The only correlation I can find is in the Startup Notification logs I see an event every time the logs are cleared starting the Local endpoint manager. I looked back prior to CU5 and this event occurred infrequently, and accompanied by a handful
of other startup events, now it seems to be running by itself intermittently. It isn't happening at any consistent time or date range. Sometimes we will have 2 in one day, other times it will wait 2 or 3 days to clear. Default behavior even if the log
is full would be to overwrite old logs rather than perform a log clear, but I'm looking at the log and even after a full days worth there's barely 100 events in any given log. I reviewed the logs and there's no indication of trouble, no
errors or warnings. Is anyone else seeing this behavior on exchange?
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