Director 7.15.0.82 : Shows Power State OFF when It's on in DDC
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Article ID: CTX234109
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Description
We see in Director dashboard that machines are at power state off

However originally they are powered on in the director details tab, citrix studio and in controller as well.

Resolution
· Check the Database for [DBName].[MonitorData].[MachineFailureLog] & check for NULL entries in the Failure End Date.
<Originally>
· If you find any null entries please take a backup of the database and delete them.
<after deletion> 
Now that after restart of each Monitor Service on DDC, Director operates fine as expected. Issue is resolved
Note- Citrix will not be responsible if any changes are made without taking a full database backup. We do not recommend making changes at database level with a full database backup. Taking full database backup of the Citrix database is mandatory before making any changes in it.
Problem Cause
[DBName].[MonitorData].[MachineFailureLog] has NULL entries in the
Failure End Date column
Issue/Introduction
The article is about the issue where Citrix Director sometimes shows VM power state OFF when the VM shows it's ON in DDC with user connected
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