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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Archiver Appliance sometimes stops archiving some PVs or loses points |
| From: | "Wang, Lin via Tech-talk" <tech-talk at aps.anl.gov> |
| To: | tech-talk at aps.anl.gov |
| Date: | Mon, 8 Nov 2021 10:30:31 +0800 (GMT+08:00) |
Dear all,
At CSNS, we have deployed Archiver Appliance (a version in 2018) in office network for a couple of years, and some problems bothered me for a long time.
Problem 1 (Stop archiving some PVs): Archiver Appliance sometimes stops archiving new points for some PVs, and in order to resume the PVs I must delete and re-add them. If I check status of these PVs in management page, it shows that "Connected" is "true" but "Last event" is "Never" or stays at some point in the past.
Problem 2 (Lose points): Sometimes when query history data of some PVs that update frequently, straight line appears on the history curve which means some points of the data are not stored successfully.
I did not find helpful information in log files, what might be the cause of such problems?
1. Network unstable?
2. Storage issue?
3. PVs not update for too long?
I am not sure if I have described the problems clearly, any hint is appreciated.
Thanks,
Lin