DMS : Reading from source endpoint temporary paused as total storage used by swap files exceeded the limit for task

DMS having source as MySQL RDS, giving this error : Reading from source endpoint temporary paused as total storage used by swap files exceeded the limit for task. This error comes only twice a day, i have tried increasing : MemoryLimitTotal - 2048 BatchApplyMemoryLimit - 1000

Still no result. Any suggestion on how I should troubleshoot this issue?