![sp_Feed](https://forum.prosysopc.com/wp-content/sp-resources/forum-themes/default/images/sp_Feed.png)
![sp_TopicIcon](https://forum.prosysopc.com/wp-content/sp-resources/forum-themes/default/images/sp_TopicIcon.png)
12:24, EEST
![Avatar](https://forum.prosysopc.com/wp-content/sp-resources/forum-avatars/defaults/userdefault.png)
February 4, 2021
![sp_UserOfflineSmall](https://forum.prosysopc.com/wp-content/sp-resources/forum-themes/default/images/sp_UserOfflineSmall.png)
13:05, EEST
![Avatar](https://forum.prosysopc.com/wp-content/sp-resources/forum-avatars/defaults/moderatordefault.png)
Moderators
February 11, 2020
![sp_UserOfflineSmall](https://forum.prosysopc.com/wp-content/sp-resources/forum-themes/default/images/sp_UserOfflineSmall.png)
Hello,
This appears to be a bug in Historian. If the Historian service is started when there is no connection to a Source Server, the service will periodically attempt to create MonitoredItems for Collection Items and, due to the lack of connection to the Source Server, this will fail and this failure is logged into valuehistory table. While logging this failure once is a good thing as it makes clear why there is no data for a Collection Item, logging it multiple times clutters the valuehistory table for no real benefit.
This bug might be fixed in a future update. If you would need a fix urgently, contact sales@prosysopc.com
Most Users Ever Online: 518
Currently Online:
27 Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
Heikki Tahvanainen: 402
hbrackel: 142
pramanj: 86
Francesco Zambon: 83
rocket science: 82
Ibrahim: 76
Sabari: 62
kapsl: 57
gjevremovic: 49
Xavier: 43
Member Stats:
Guest Posters: 0
Members: 704
Moderators: 7
Admins: 1
Forum Stats:
Groups: 3
Forums: 15
Topics: 1482
Posts: 6316
Newest Members:
samui, TommyDab, wross, Jeremyknock, Pedromon, DonaldEdism, Miguelplese, Scotanine, katesalas95, PetertumModerators: Jouni Aro: 1015, Pyry: 1, Petri: 0, Bjarne Boström: 994, Jimmy Ni: 26, Matti Siponen: 330, Lusetti: 0
Administrators: admin: 1