rclone/cmd/bisync/testdata/test_basic/golden/test.log
nielash fd95511091 bisync: generate listings concurrently with march -- fixes #7332
Before this change, bisync needed to build a full listing for Path1, then a
full listing for Path2, then compare them -- and each of those tasks needed to
finish before the next one could start. In addition to being slow and
inefficient, it also caused real problems if a file changed between the time
bisync checked it on Path1 and the time it checked the corresponding file on
Path2.

This change solves these problems by listing both paths concurrently, using
the same March infrastructure that check and sync use to traverse two
directories in lock-step, optimized by Go's robust concurrency support.
Listings should now be much faster, and any given path is now checked
nearly-instantaneously on both sides, minimizing room for error.

Further discussion:
https://forum.rclone.org/t/bisync-bugs-and-feature-requests/37636#:~:text=4.%20Listings%20should%20alternate%20between%20paths%20to%20minimize%20errors
2024-01-20 14:50:08 -05:00

1.6 KiB

(01) : test basic
 

(02) : test initial bisync
(03) : bisync resync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying unique Path2 files to Path1
INFO : Resynching Path1 to Path2
INFO : Resync updating listings
INFO : Bisync successful
 
(04) : test place newer files on both paths
 
(05) : touch-copy 2001-01-02 {datadir/}file1.txt {path2/}
(06) : copy-as {datadir/}file1.txt {path1/}subdir file20.txt
 
(07) : test bisync run
(08) : bisync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : - Path1 File is newer - subdir/file20.txt
INFO : Path1: 1 changes: 0 new, 1 newer, 0 older, 0 deleted
INFO : Path2 checking for diffs
INFO : - Path2 File is newer - file1.txt
INFO : Path2: 1 changes: 0 new, 1 newer, 0 older, 0 deleted
INFO : Applying changes
INFO : - Path1 Queue copy to Path2 - {path2/}subdir/file20.txt
INFO : - Path2 Queue copy to Path1 - {path1/}file1.txt
INFO : - Path2 Do queued copies to - Path1
INFO : - Path1 Do queued copies to - Path2
INFO : Updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful