Further to what @jtrujillo said.
Search for db inputs which are getting disabled using the query:
index=_internal sourcetype=dbx2 action=auto_disable_modular_input_due_to_maximum_failed_retries
Once you have the db inputs, go to inputs.conf file and check for those 2 db inputs:
You'll have to change following parameter to ensure its not getting auto disabled.
auto_disable = (true|false)
optional, default is true
If set to true, it would disable this dbinput after max_retries of failed attempts
If you really want, you can change this setting as well.
max_retries =
optional, default number is 6
The max number of failed attemps to execute dbinput before it get disabled
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