rclone/cmd/bisync/testdata/test_resync/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

4.9 KiB

(01) : test resync
 

(02) : test 1. resync with empty path1, resulting in copying all content from path2.
(03) : purge-children {path1/}
(04) : bisync resync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying unique Path2 files to Path1
INFO : - Path2 Resync will copy to Path1 - RCLONE_TEST
INFO : - Path2 Resync will copy to Path1 - file1.txt
INFO : - Path2 Resync will copy to Path1 - file2.txt
INFO : - Path2 Resync will copy to Path1 - file3.txt
INFO : - Path2 Resync will copy to Path1 - file4.txt
INFO : - Path2 Resync will copy to Path1 - file5.txt
INFO : - Path2 Resync will copy to Path1 - file6.txt
INFO : - Path2 Resync will copy to Path1 - file7.txt
INFO : - Path2 Resync is doing queued copies to - Path1
INFO : Resynching Path1 to Path2
INFO : Resync updating listings
INFO : Bisync successful
(05) : move-listings empty-path1
 
(06) : test 2. resync with empty path2, resulting in synching all content to path2.
(07) : purge-children {path2/}
(08) : 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
(09) : move-listings empty-path2
 
(10) : test 3. exercise all of the various file difference scenarios during a resync.
(11) : touch-glob 2002-02-02 {datadir/} fileA.txt
(12) : touch-glob 1999-09-09 {datadir/} fileB.txt
 
(13) : test = file - path1 - path2 - expected action - who wins
(14) : test - file1.txt - exists - missing - sync path1 > path2 - path1
(15) : delete-file {path2/}file1.txt
 
(16) : test - file2.txt - missing - exists - copy path2 > path1 - path2
(17) : delete-file {path1/}file2.txt
 
(18) : test - file3.txt - exists - newer date - sync path1 > path2 - path1
(19) : copy-as {datadir/}fileA.txt {path2/} file3.txt
 
(20) : test - file4.txt - missing - newer date - copy path2 > path1 - path2
(21) : delete-file {path1/}file4.txt
(22) : copy-as {datadir/}fileA.txt {path2/} file4.txt
 
(23) : test - file5.txt - exists - older date - sync path1 > path2 - path1
(24) : copy-as {datadir/}fileB.txt {path2/} file5.txt
 
(25) : test - file6.txt - older date - newer date - sync path1 > path2 - path1
(26) : copy-as {datadir/}fileB.txt {path1/} file6.txt
(27) : copy-as {datadir/}fileA.txt {path2/} file6.txt
 
(28) : test - file7.txt - exists - exists (same) - none - same
 
(29) : test run bisync with resync
(30) : bisync resync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Copying unique Path2 files to Path1
INFO : - Path2 Resync will copy to Path1 - file2.txt
INFO : - Path2 Resync will copy to Path1 - file4.txt
INFO : - Path2 Resync is doing queued copies to - Path1
INFO : Resynching Path1 to Path2
INFO : Resync updating listings
INFO : Bisync successful
(31) : copy-listings mixed-diffs
 
(32) : test run normal bisync
(33) : bisync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
INFO : No changes found
INFO : Updating listings
INFO : Validating listings for Path1 "{path1/}" vs Path2 "{path2/}"
INFO : Bisync successful
 
(34) : test 4. confirm critical error on normal sync of empty path.
(35) : purge-children {path2/}
(36) : bisync
INFO : Synching Path1 "{path1/}" with Path2 "{path2/}"
INFO : Building Path1 and Path2 listings
INFO : Path1 checking for diffs
INFO : Path2 checking for diffs
ERROR : Empty current Path2 listing. Cannot sync to an empty directory: {workdir/}{session}.path2.lst-new
ERROR : Bisync critical error: empty current Path2 listing: {workdir/}{session}.path2.lst-new
ERROR : Bisync aborted. Must run --resync to recover.
Bisync error: bisync aborted