Hi, all!
Good day to you!
This topic describes a solution for recordings are missing on some cameras with error: 999115456.
Product information
Version: IVS 3800 V8.1.0
Issue Description
The alarm 999115456 represents that the request ends abnormally and an ANNOUNCE message is sent.

Handling Process
Found same cameras were connected to another 3rd party server and working fine.
The issue found only with 3rd party cameras added to the CloudIVS server.
Analyze the error log. It is found that the buffer fails to be applied during playback. According to the log, the input parameter is oversized (negative value inversion).

According to the logic, the value is the address difference in the second index. Check the second index file of the block. It is found that the data is abnormal, that is, endaddr < startaddr.

Checked the disk writing logs of the device. The log showed that the index was full. Checked the process of processing the index was full. It was found that the index address was not corrected after partition switching.

Root Cause
The added camera's resolution, frame rate, and bit rate does not match the current server version capabilities.
Solution
There are two methods to resolve the question.
Solution 1:
Need to upgrade the server to this version: IVS3800 8.1.0.SPC200.
Solution 2:
Increase the camera resolution, bit rate, and frame rate. The minimum resolution of the camera is adjusted to 720p.
720p device, bit rate ≥ 2048, frame rate ≥ 25
1080p device, bit rate ≥ 2048, frame rate ≥ 25
2K device, bit rate ≥ 2048, frame rate ≥ 25
4K device, bit rate ≥ 2048, frame rate ≥ 25
Hope it can help you!







