Question

我正在编写一个脚本，用于执行用户主目录的每日快照。首先，我使用以下方式进行干运行：

rsync -azvrn --out-format="%M %f" source/dir dest/dir

然后是实际的rsync操作（删除-n选项）。

我正在尝试解析干运行的输出。具体来说，我有兴趣了解rsync错误的确切原因（如果发生了）。有谁知道

最常见的rsync错误及其代码？
指向综合rsync错误代码页的链接？

最重要的是，rsync（至少在CentOs 5上）不会返回错误代码。而是在内部显示错误并以0返回。如此：

sending incremental file list
rsync: link_stat "/data/users/gary/testdi" failed: No such file or directory (2)

sent 18 bytes  received 12 bytes  60.00 bytes/sec
total size is 0  speedup is 0.00 (DRY RUN)

rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]

是否有人必须解析rsync错误并建议如何存储rsync返回状态？我相信，在传输多个文件时，可能会在每个文件的基础上引发错误，并在最后收集，如上面最后一行代码所示。

Answer 1

根据rsync“man”页面，这里是它可以返回的错误代码及其含义。如果您使用bash编写脚本，则可以查看$?

 0     Success
 1     Syntax or usage error
 2     Protocol incompatibility
 3     Errors selecting input/output files, dirs
 4     Requested action not supported: an attempt was made to manipulate 64-bit
       files on a platform that cannot support them; or an option was specified
       that is supported by the client and not by the server.
 5     Error starting client-server protocol
 6     Daemon unable to append to log-file
10     Error in socket I/O
11     Error in file I/O
12     Error in rsync protocol data stream
13     Errors with program diagnostics
14     Error in IPC code
20     Received SIGUSR1 or SIGINT
21     Some error returned by waitpid()
22     Error allocating core memory buffers
23     Partial transfer due to error
24     Partial transfer due to vanished source files
25     The --max-delete limit stopped deletions
30     Timeout in data send/receive
35     Timeout waiting for daemon connection

我从未见过一个全面的“最常见的错误”列表，但我打赌错误代码1会在顶部。

rsync错误代码的完整列表

1 个答案: