On some but not all records, we see over 2K change log entries.
On this record, the change log started and ran continuously from 11-26-19 to 1-20-2020
Another instance I had imported to the preferred communication field and the import ran for ~20 minutes. The change log was continually getting written to for the entire import process.
For now, I have turned off detailed logging. We are using a separate db for it. Thoughts on what is going on here?
$dao->save();
instead of the api, so it might bypass civicrm_log but not the triggers. The report you've screenshot'd will show what the changes are if you click on them - do they give any clues?