About 10 days ago I had a Map/Reduce script drop about 10% of my map stage instances It threw

An unexpected SuiteScript error has occurred

when calling

record.load

, paused for 25 minutes, and then I got a bonus error

{
  "type": "error.SuiteScriptError",
  "name": "SSS_APP_SERVER_RESTART",
  "message": "Processing was interrupted due to app-server restart."
}