[Notifications] Fix Slack Notifications With Long Messages #5489
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https://iguazio.atlassian.net/browse/ML-6324
Slack notifications now use headers for making the notification message bold. However these header sections are limited to 150 characters. Any message longer than that resulted in a 400 Bad Request from slack servers.
Mostly this arose from Pipeline start notifications which contain a long url in them.
So now we truncate the header to the nearest
,
or 150 characters, whichever comes first, and the rest is set in another section below the header.Attached are images showing before (only section, no header):
And after (section and header):