@rok The Threshold value look less here. To avoid getting the reported health alerts we recommend to increase the corresponding configuration values:
CM -> Cloudera Management Services -> Configuration -> Search for "Descriptor Fetch Max Tries"
CM -> Cloudera Management Services -> Configuration -> Event Server -> Search for "Descriptor Fetch Tries Interval" and change this value for all the roles.
We would recommend to increase the "Descriptor Fetch Max Tries" value from the default 5 to 10 in a first step.
I after that you are facing the issue than you should look at the agent logs and start from there.
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