Unexplained 2.5 hour delay

I have a nightly copy job from local storage to networked storage. The latest run has an unexplained 2.5 hour delay before copying – 2nd and 3rd lines in this log file excerpt:

2021-07-24 04:00:09.352 INFO SNAPSHOT_EXIST Snapshot system at revision 101 already exists at the destination storage

2021-07-24 04:00:09.353 INFO SNAPSHOT_EXIST Snapshot system at revision 102 already exists at the destination storage

2021-07-24 06:31:45.103 INFO SNAPSHOT_COPY Chunks to copy: 36, to skip: 382762, total: 382798

2021-07-24 06:31:52.805 INFO COPY_PROGRESS Copied chunk 46f1195f142481ca39c76414c439d83a554c076231fe85ff3b178ef43635cb82 (1/36) 653KB/s 00:04:29 2.8%

Any idea what caused it or where I can look for clues?

Can you add -d as the global option to this copy job which should print out additional logs?

It’s run fine since and ran fine before so it probably won’t happen again. I’ll keep this in mind if it does, thanks.

Could it have been a simple case of your computer going to sleep?

Running it as a docker on a server that doesn’t sleep. Probably just a fluke, thanks though.