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Subject: | Archiver appliance sampling buffer overflows after migration from Version 2018 to Version 1.1.0 |
From: | "Wang, Lin via Tech-talk" <tech-talk at aps.anl.gov> |
To: | tech-talk at aps.anl.gov |
Date: | Tue, 14 Feb 2023 12:45:28 +0800 (GMT+08:00) |
Dear all,
In the last several years, we used Archiver Appliance Version archappl_v0.0.1_SNAPSHOT_15-November-2018T10-27-25.tar.gz to arvhive PVs at CSNS office network.
Recently, we have upgrated Archiver Appliance to the latest Version 1.1.0 and preserve the existing MySQL database as well as archappl.properties.
However, with this latest version, some 25Hz high-frequency PVs with low archiving rate and SCAN archiving method cannot be archived continuously.
For example, the process frequency of PV A:B:C:D is 25Hz, the scan period is 1 second and the scan method is SCAN, the data can only be stored at the beginning of every 1 minute and then stop.
It seems that the sampling buffer overflows, but it did not happen for the old version. Did I miss something for the migration or is there anything changed in the latest version? Any suggestion is appreciated.
Regards,
Lin