tb-web-report - websocket timed out error

[DavidHartnell]

Web report fails with the "generate report" rule chain node. Doesn't always happen but does occur intermittently. I can't reproduce it reliably. Is there anyway to change the websocket data timeout limit?

Log Entries:
2024-04-24 18:35:34,028 [ReportController] INFO: Generating dashboard report: baseUrl https://REDACTED/, dashboardId: 255d8f60-e535-11ee-8f35-b390de7cef0f. Active requests count: 1
2024-04-24 18:35:34,047 [TbWebReportPage-4] INFO: Generating dashboard report
2024-04-24 18:35:47,009 [ReportController] ERROR: Wait for websocket data timed out!:
Error: Wait for websocket data timed out!
at TbWebReportPage. (/snapshot/web-report/target/src/api/controllers/tbWebReportPage.js)
at Generator.next ()
at fulfilled (/snapshot/web-report/target/src/api/controllers/tbWebReportPage.js)
2024-04-25 06:30:00,017 [ReportController] INFO: Generating dashboard report: baseUrl https://REDACTED/, dashboardId: 44f36fe0-9ccf-11eb-bee4-311fdd921040. Active requests count: 1
2024-04-25 06:30:00,029 [TbWebReportPage-4] INFO: Generating dashboard report
2024-04-25 06:30:14,662 [ReportController] ERROR: Wait for websocket data timed out!:
Error: Wait for websocket data timed out!
at TbWebReportPage. (/snapshot/web-report/target/src/api/controllers/tbWebReportPage.js)
at Generator.next ()
at fulfilled (/snapshot/web-report/target/src/api/controllers/tbWebReportPage.js)

Server Environment
Deployment: monolith
Deployment type: deb
ThingsBoard Version, 3.4.4 PE
Ubuntu 22.04.4 LTS (GNU/Linux 5.15.0-100-generic x86_64)

Your Client Environment - (although this only seems to occur intermittently when the rule chain triggers the report)
OS: Windows
Browser: Edge
Version 124.0.2478.51 (Official build) (64-bit)

[trikimiki]

Hi!
Most likely, there is not enough time for Web Report to load the dashboard.
You could try increasing the timeout parameter:
/usr/share/tb-web-report/conf/tb-web-report.conf

export LOAD_DASHBOARD_RESOURCES_TIMEOUT=15000 #in ms, default is 10000
export DASHBOARD_IDLE_WAIT_TIME=5000 #in ms, default is 0

Do not forget to restart web report service.