Generating a PDF from Canvas is failing

[dadoonet]

Kibana version: 7.11.2 (on cloud)

Browser version: Google Chrome Version 89.0.4389.82

Browser OS version: MacOS 11.2.1 (20D74)

Describe the bug:

I'm trying to print as PDF a Canvas presentation (9 slides) but no luck.

Steps to reproduce:

1. Import this presentation: https://github.com/dadoonet/demo-ingest-processors/raw/main/kibana-config/canvas.ndjson

wget https://raw.githubusercontent.com/dadoonet/demo-ingest-processors/main/kibana-config/canvas.ndjson
curl -XPOST http://localhost:5601/api/saved_objects/_import?overwrite=true -H 'kbn-xsrf: true' --form file="@canvas.ndjson"

2. Generate the PDF

curl -XPOST https://localhost:5601/api/reporting/generate/printablePdf?jobParams=(browserTimezone:Europe%2FParis,layout:(dimensions:(height:1080,width:1920),id:canvas),objectType:'canvas%20workpad',relativeUrls:!(%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F1,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F2,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F3,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F4,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F5,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F6,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F7,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F8,%2Fapp%2Fcanvas%23%2Fexport%2Fworkpad%2Fpdf%2Fworkpad-916fe3da-c3c9-4f58-a2fc-aea17953d636%2Fpage%2F9),title:'Elastic%20Daily%20Byte%20-%20Ingest%20Processors')

Errors in browser console (if relevant):

Unable to generate report
Reporting encountered an error on the page: Error: Error: Unauthorized at _callee3$ (https://0.0.0.0:18136/38015/bundles/core/core.entry.js:6:44939) at l (https://0.0.0.0:18136/38015/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:321:968615) at Generator._invoke (https://0.0.0.0:18136/38015/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:321:968368) at Generator.forEach.e.<computed> [as next] (https://0.0.0.0:18136/38015/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:321:968972) at fetch_asyncGeneratorStep (https://0.0.0.0:18136/38015/bundles/core/core.entry.js:6:39045) at _next (https://0.0.0.0:18136/38015/bundles/core/core.entry.js:6:39361)

And sometimes

ResponseError: security_exception

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[lucabelluccini]

Hello @dadoonet can you please try to remove all the demodata functions from static elements?
I suggest to review all the markdown which end up in static content.

Example:

filters
| demodata
| markdown "# Circle Processor
"
| render 
  css=".canvasRenderEl{

}
.canvasMarkdown p a {
color: lightgrey;
}
.canvasMarkdown h1 {
font-size: 60px;
color: black;
}
.canvasMarkdown h1 a {
color: lightgrey;
}"

This might be related to #94521

[dadoonet]

Thanks @lucabelluccini. I just tried but still the same issue.
I updated the canvas file in my repo.

[elasticmachine]

Pinging @elastic/kibana-reporting-services (Team:Reporting Services)

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServices)

[tsullivan]

Hi, @elastic/kibana-presentation can you check if this may be fixed along with: #93482?

[poffdeluxe]

Looking now!

[poffdeluxe]

I downloaded the attached canvas.ndjson and was able to generate pdfs on both my local machine and on elastic cloud (both running 7.11.2).

Does the Kibana instance running on cloud have at least 4 GB of memory?

[dadoonet]

Does the Kibana instance running on cloud have at least 4 GB of memory?

No. I'm using the default instance, which is 1gb of RAM.
I just looked at https://www.elastic.co/guide/en/kibana/current/reporting-troubleshooting.html#reporting-troubleshooting-system-requirements which says to increase to 2gb.

I increased to 4gb as you recommended and that worked like a charm.

Is there any way to change the error message in such a case and provide a link to the troubleshooting page or recommend to increase the memory?

I'm closing the issue as it's solved on my end. Thanks @poffdeluxe!