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Cisco Bug: CSCtf08857 - Windows time zones inconsistency casuses Data source time zone issues

Last Modified

Dec 30, 2016

Products (1)

  • Cisco Unified Intelligence Center

Known Affected Releases

7.5(2) 7.5(3)

Description (partial)

If the Number of time zones in the web servers varies, it will cause the data source time zone to change randomly. 

Whenever data source time zone is saved or shown in data source editor, CUIC uses a list constructed as: Retrieves list of time zones from windows registry (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones), sorts the list by index (registry property), then assigns a value from 0 to n. 

Take an example of two servers having different list of time zones pointing to one cuic db.
Server1 has three time zones, but Server2 misses one.

Server1                  Server2
A - 0                   A - 0
B - 1                   C - 1 
C - 2

Now, if you update data source time zone from Server1 to B, CUIC store it's value in db which is 1.
Now if you check same data source time zone from Server2, you will see C, as value 1 corresponds to C in this Server2.
You may not see this inconsistency immediately due to global caching.

NOTE: This issue is primarliy seen in configurations where there are multiple web servers pointing to once CUIC database.
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