Xbcloud get from s3 fail

MySQL & MariaDB Percona XtraBackup
1

I can’t not get backup data from s3 to use xbcloud.

my command is

xbcloud get s3://bucket/path/
–s3-access-key=****
–s3-secret-key=****
–s3-region=****
| xbstream restore -x -C /backup/FULL/

and then i got result as like this

241024 05:27:06 xbcloud: [0] Download successfull OLD_FILE/XBK_00_FULL/undo_002.qp.00000000000000000001, size 25
241024 05:27:06 xbcloud: [0] Downloading OLD_.00000000000000000000.
241024 05:27:06 xbcloud: S3 error message: The specified key does not exist.
241024 05:27:06 xbcloud: [0] Download failed. Cannot download OLD_.00000000000000000000.
241024 05:27:06 xbcloud: Download failed.

Most weird thing is that there’s no file name as ‘OLD_.00000000000000000000.’ in my s3 bucket path.

I tried on xtrabackup version 8.0.35-31

2

Enable debug/verbose output for xbcloud and provide here please.

3

when add --verbose option i got this message

  • Connection #0 to host <my S3 url> left intact
    xbcloud: Error writing file ‘’ (OS errno 32 - Broken pipe)
    241025 02:27:56 xbcloud: [0] Download of file <my S3 path>/20241020_0000/XBK_00_FULL/undo_002.qp.00000000000000000001 failed. Cannot write to output
    241025 02:27:56 xbcloud: Download failed.

and this is log

[root@localhost backup]# cat xbcloud_log.log
xbstream: Can’t create/write to file ‘./xtrabackup_tablespaces.qp’ (OS errno 17 - File exists)
xbstream: failed to create file.
xbstream: Can’t create/write to file ‘./xtrabackup_tablespaces.qp’ (OS errno 17 - File exists)
xbstream: failed to create file.
xbstream: Can’t create/write to file ‘./xtrabackup_info.qp’ (OS errno 17 - File exists)
xbstream: failed to create file.
xbstream: Can’t create/write to file ‘./xtrabackup_info.qp’ (OS errno 17 - File exists)
xbstream: failed to create file.
xbstream: Can’t create/write to file ‘./undo_002.qp’ (OS errno 17 - File exists)
xbstream: failed to create file.
exit code: 1

when I did “xbcloud get” from same bucket but different path using same S3 key, it works. but some path cannot.

4

This is pretty telling what the problem is. You are trying to pull files from S3 and they already exist locally. Remove any local files first, then try again.