Event ID 1006

KB ID 0001425

Problem

Seen on an Exchange 2016 Server

Log Name:      Application
Source:        MSExchangeDiagnostics
Date:          XX/XX/XXXX XX:XX:XX
Event ID:      1006
Task Category: Triggers
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      EX2016
Description:
The performance counter '\\EX2016\MSExchange Assistants - Per Database(msexchangemailboxassistants-2016-mailbox-database)\Event Dispatchers Catching Up' sustained a value of '1,740.00', for the '30' minute(s) interval starting at '12/04/2018 08:35:00'. Threshold breached since '06/04/2018 12:05'. None Trigger Name:EventDispatchersCatchupQueueTrigger. Instance:msexchangemailboxassistants-2016-mailbox-database-p-z

Solution

After some research it seems this is a cosmetic error, and can be disabled/suppressed. Navigate to {drive letter}:\Program Files\Microsoft\Exchange Server\V15\Bin\ and locate Microsoft.Exchange.Diagnostics.Service.exe.config.