File _log_XXXX in bucket

The size of bucket is growing very quickly.And i see many files that start with log.What are these files for? Can I delete them?

Rule of thumb: don’t delete anything manually unless Kopia is throwing errors. Let Kopia’s maintenance do its job and it will clean up what needs to be cleaned.

when i execute the following code, but it do nothing.

kopia maintenance --full --safety=none

kopia --help-long :

  maintenance set [<flags>]
...
...
    --max-retained-log-count=MAX-RETAINED-LOG-COUNT
                                   Set maximum number of log sessions to retain
    --max-retained-log-age=MAX-RETAINED-LOG-AGE
                                   Set maximum age of log sessions to retain
    --max-retained-log-size-mb=MAX-RETAINED-LOG-SIZE-MB
                                   Set maximum total size of log sessions

There are default values. And kopia maintenance is fine on my other test machine.