On a large database (or a number of large databases) db.upgradeCheck() can time out, leaving the user without a definitive response as to the status of their upgrade:
mongos> use admin
switched to db admin
mongos> db.upgradeCheckAllDbs()
...
...
23766468 documents processed
23804050 documents processed
23842477 documents processed
2014-03-11T00:41:55.871+0000 error: {
"$err" : "getMore: cursor didn't exist on server, possible restart or timeout?",
"code" : 13127
} at src/mongo/shell/query.js:131
- is related to
-
SERVER-8391 Pre-flight upgrade tool to check for changes breaking backwards compatibility or introducing regressions
-
- Closed
-