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https://issues.apache.org/jira/browse/NIFI-4178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16084040#comment-16084040
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Wil Selwood commented on NIFI-4178:
-----------------------------------
Note for any one who finds this later I have been able to extract the message
by looking in chromes dev tools.
Mouse over the element to make the popup appear.
Press F12 to open the dev tools.
Find the CanvasToolTips div under the canvas container.
Under processor tooltips hopefully there will only be one entry.
Inside that should be the full text of the tool tip.
Unfortunately in my case it's two copies of the schema separated by some text
that says "' is invalid because Failed to parse schema:"
Good luck.
> Validation error tool tip too big on ConvertJSONToAvro processor
> ----------------------------------------------------------------
>
> Key: NIFI-4178
> URL: https://issues.apache.org/jira/browse/NIFI-4178
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.3.0
> Reporter: Wil Selwood
> Attachments: toobigerror_nifi_cutdown.png
>
>
> We are trying to process the twitter stream and have a avro schema to convert
> their large json objects. Unfortunately we have an error in the schema
> somewhere.
> The schema is a little over 300 lines. The validation fails and the little
> warning triangle appears on the processor as expected. However the pop-up
> text is so big that I can't actually see an error due to it printing out the
> schema first. See attached screen shot.
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