Suspected race condition when two widgets use the same ticker with images on the same layout

[DanielBW1]

CMS Version: 2.0.4

Issue: Create a Layout that contains more than one Ticker Widget configured the same as each other. In this example, the ticker was returning images. Schedule this Layout to a Xibo Player. This causes many errors, listed below/

Notes:

• Multiple deletes try to run on requiredfile table which causes a deadlock.
• The Player does not show as logged in, the Display page does not show any displays.
• The Error: SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction logged is returned.
• Making any changes to the Layout can cause this behaviour to occur again.
• Adding ?cache1, ?cache2 etc after the tickers does not resolve the issue.

[alexharrington]

Seems to be still happening. Seems to be where there are multiple tickers - not necessarily for the same URL. The layout that triggered it this time was as follows:

9 tickers, all use title tag only by the looks of it. there are also 2 clocks, 1 weather and 8 image widgets. layout duration is 20 hours, due to a 72000 second ticker

[exalate-issue-sync[bot]]

Jenkins Automation commented: alexharrington commented: Seems to be still happening. Seems to be where there are multiple tickers - not necessarily for the same URL. The layout that triggered it this time was as follows:

9 tickers, all use title tag only by the looks of it. there are also 2 clocks, 1 weather and 8 image widgets. layout duration is 20 hours, due to a 72000 second ticker