wsrep_sst_xtrabackup-v2 is looking at wrong location

[shinguz]

After changing wsrep_sst_method to xtrabackup-v2 and provoking an SST we get the following error in the MySQL error log:

Unable to find xtrabackup plugin dir at either /usr/lib/plugin or /usr/lib/xtrabackup/plugin

Checking on the filesystem we find the following:

ll -d /usr/lib/xtrabackup /usr/lib/plugin /usr/lib64/xtrabackup ls: cannot access '/usr/lib/plugin': No such file or directory drwxr-xr-x 3 root root 4096 May 15 15:22 /usr/lib64/xtrabackup lrwxrwxrwx 1 root root 21 May 16 11:00 /usr/lib/xtrabackup -> /usr/lib64/xtrabackup # This link is created by us!

After creating the link it worked...

Bug is located here:

wsrep_sst_xtrabackup-v2

1591 pxb_root="${XTRABACKUP_80_PATH%/*}" 1592 pxb_bin_path="${pxb_root}/bin/xtrabackup" 1593 pxb_plugin_dir="${pxb_root}/lib/xtrabackup/plugin" 1594 [ -d "${pxb_plugin_dir}" ] || pxb_plugin_dir="${pxb_root}/lib/plugin" 1595 if [[ -d "${pxb_plugin_dir}" ]]; then 1596 wsrep_log_debug "using '${pxb_plugin_dir}' for xtrabackup plugin dir" 1597 else 1598 wsrep_log_error "*** FATAL ERROR ** " 1599 wsrep_log_error "Unable to find xtrabackup plugin dir at either ${pxb_plugin_dir} or ${pxb_root}/lib/xtrabackup/plugin" 1600 wsrep_log_error "Line $LINENO" 1601 wsrep_log_error "** " 1602 exit 2 1603 fi

[shinguz]

O/S is RockyLinux 8. On DEB distros it should work...

[temeo]

Was xtrabackup installed from RPM or from binary tarball?

[shinguz]

RPM

[temeo]

Fixed in 8.0.33-26.14