180305 10:52:26 innobackupex: Starting the backup operation

IMPORTANT: Please check that the backup run completes successfully.
           At the end of a successful backup run innobackupex
           prints "completed OK!".

180305 10:52:26 Connecting to MySQL server host: localhost, user: stt_user, password: set, port: not set, socket: /var/lib/mysql/mysql.sock
Using server version 10.2.13-MariaDB-log
--innobackupex based on MariaDB server 10.2.13-MariaDB Linux (x86_64) 
mariabackup: uses posix_fadvise().
mariabackup: cd to /var/lib/mysql/
mariabackup: open files limit requested 65535, set to 16364
mariabackup: using the following InnoDB configuration:
mariabackup:   innodb_data_home_dir = .
mariabackup:   innodb_data_file_path = ibdata1:12M:autoextend
mariabackup:   innodb_log_group_home_dir = ./
mariabackup: using O_DIRECT
2018-03-05 10:52:26 139888260987008 [Note] InnoDB: Number of pools: 1
180305 10:52:27 >> log scanned up to (142849488463)
mariabackup: Generating a list of tablespaces
2018-03-05 10:52:27 139888260987008 [Warning] InnoDB: Allocated tablespace ID 6 for mysql/innodb_table_stats, old maximum was 0
180305 10:52:28 >> log scanned up to (142849496859)
180305 10:52:39 [01] Streaming ./ibdata1
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./mysql/innodb_table_stats.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./mysql/innodb_index_stats.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./mysql/gtid_slave_pos.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/counter.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/customer.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/customer_corporate.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/customer_note.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/customer_service.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/department.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/document.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/document_note.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/document_type.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/employee.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/note.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/position.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/procedure.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/role.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/service.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/service_status.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/setting.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/setting_type.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/status.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task_document.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task_note.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task_stage.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task_type.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/task_workflow_procedure.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/user.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/workflow.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./docproject/workflow_procedure.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/BOARD_DESCRIPTIONS.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/BOARD_TYPES.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CAR_DESTINATIONS.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CATEGORIES.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CATEGORY_DESCRIPTIONS.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CHAINS.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CHARACTERISTICS.ibd
180305 10:52:58 [01]        ...done
180305 10:52:58 [01] Streaming ./hotelbeds/CHARACTERISTIC_DESCRIPTIONS.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/CONTACTS.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/COUNTRIES.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/COUNTRY_IDS.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/DESTINATIONS.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/DESTINATION_IDS.ibd
180305 10:52:59 [01]        ...done
180305 10:52:59 [01] Streaming ./hotelbeds/FACILITIES.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/FACILITY_DESCRIPTIONS.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/FACILITY_GROUPS.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/FACILITY_GROUPS_DESCRIPTIONS.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/FACILITY_TYPES.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/FACILITY_TYPOLOGIES.ibd
180305 10:53:07 [01]        ...done
180305 10:53:07 [01] Streaming ./hotelbeds/HOTELS.ibd
180305 10:53:08 [01]        ...done
180305 10:53:08 [01] Streaming ./hotelbeds/HOTEL_DESCRIPTIONS.ibd
180305 10:53:44 [01]        ...done
180305 10:53:44 [01] Streaming ./hotelbeds/HOTEL_DESTINATIONS.ibd
180305 10:53:44 [01]        ...done
180305 10:53:44 [01] Streaming ./hotelbeds/HOTEL_IMAGES.ibd
--innobackupex: Error writing file 'UNKNOWN' (Errcode: 32 "Broken pipe")
xb_stream_write_data() failed.
--innobackupex: Error writing file 'UNKNOWN' (Errcode: 32 "Broken pipe")
[01] mariabackup: Error: xtrabackup_copy_datafile() failed.
[01] mariabackup: Error: failed to copy datafile.