Error fetching fields for index pattern metricbeat-* (ID: metricbeat-*) Request Timeout

[Peter_Kasper]

Kibana, Elastic are 7.8, using Centos 7.7 and sending VM is Centos is 8.0, non secure single node.
Whenever I run metricbeat setup, it loads the items but when i view the index pattern i get the error. It seems to load all the fields even though i ONLY enabled SYSTEM.

Is it because there are over 3200 fields? Seems like a template issue? Dashboards work but it all lags and eventually throws Request Timeout errors

Full error

Error: Request Timeout
at Fetch._callee3$ (http://logger.smax.realit.ca.local/31997/bundles/commons.bundle.js:3:1287438)
at l (http://logger.smax.realit.ca.local/31997/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:288:969217)
at Generator._invoke (http://logger.smax.realit.ca.local/31997/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:288:968970)
at Generator.forEach.e. [as next] (http://logger.smax.realit.ca.local/31997/bundles/kbn-ui-shared-deps/kbn-ui-shared-deps.js:288:969574)
at asyncGeneratorStep (http://logger.smax.realit.ca.local/31997/bundles/commons.bundle.js:3:1280961)
at _next (http://logger.smax.realit.ca.local/31997/bundles/commons.bundle.js:3:1281272)

[Sergi]

Hi,

I think I have got similar issue with filebeat.
I am using red hat and same version than OP for ELK.
I get this error:

I tried to increase some timeouts fields in the kibana.yml, but I don't get to fix it. Some idea?