Change backup log format?

[xyz]

./xtrabackup version 8.0.25-17 based on MySQL server 8.0.25 Linux (x86_64) (revision id: d27028b)

xtrabackup: Transaction log of lsn (2591648589392) to (2591651515858) was copied.
220501 12:23:22 completed OK!

./xtrabackup version 8.0.28-20 based on MySQL server 8.0.28 Linux (x86_64) (revision id: 4cc3081873d)

2022-05-06T18:06:47.157610+09:00 0 [Note] [MY-011825] [Xtrabackup] Transaction log of lsn (2611222811534) to (2611246129629) was copied.
2022-05-06T18:06:47.502481+09:00 0 [Note] [MY-011825] [Xtrabackup] completed OK!

[matthewb]

Can you please clarify your question? Not sure what you are asking.

[xyz]

when use “xtrabackup version 8.0.25” backup database , will out “220501 12:23:22 completed OK!”
now i test “xtrabackup version 8.0.28-20” backup database, it out “2022-05-06T18:06:47.502481+09:00 0 [Note] [MY-011825] [Xtrabackup] completed OK!” .

[matthewb]

Yes, it appears the log format changed.

[xyz]

This modification is not necessary …

[matthewb]

The modification makes the output standardized to that of MySQL’s error log.