We have a MongoDB v4.4 instance with several TB of data in it. The instance experienced a bad shutdown (the cause of the shutdown has yet to be determined), and the recovery process, once completed, didn’t allow it to start again. A few days ago we started the repair process. It is still running, but has had no console/log updates in over a day, and neither top nor iotop show much activity at all. So, we have a few questions for the experts in the community.
• How long should a repair process take on 6-ish TB of data? Is that even something that can be predicted?
• Should we stop the repair process since it appears to have stalled, or do we just wait (and hope)?
• Other than the console/log messages is there any way to monitor a repair process?
• Are there any other suggestions as to how to troubleshoot this problem?
Thanks for any help.