Completed integration / import shows as running and fails after 30 minutes after data successfully imported

Completed integration / import shows as running and fails after 30 minutes after data successfully imported

Seeing odd behavior in UI and import / upsert from MySQL to SQL server:

Initiated manual run to upsert 25K rows from MySQL to SQL.
I see correct data being pulled into SQL and all rows transfered within few minutes,
During this time no activity visible under "Monitor"
All rows transfered but Integration still showing as in running state for another 20 minutes
After 32 minutes see this under Monitor:

Integration failed: Lost connection to MySQL server during query

Success rows showing 0 and error rows showing 0 although correct number of rows transfered (about 21K)

RunID: 157410941