I've got the following config snippet in my /etc/barman.conf:
[barman]
; System user
barman_user = ubuntu
; Log location
log_file = /var/log/barman/barman.log
However, whenever the log file is rotated, this is what happens:
$ ls -l /var/log/barman/
total 860
-rw-r----- 1 barman adm 0 Dec 3 06:37 barman.log
-rw-rw-r-- 1 ubuntu ubuntu 875647 Dec 2 06:12 barman.log.1
And barman keeps throwing warnings/errors about this:
$ barman cron
2017-12-13 11:11:08,358 [11498] barman.utils WARNING: Failed opening the requested log file. Using standard error instead.
Is my barman config incorrect, is this a bug in barman, or is some OS/kernel-level security setting causing this behavior?
Edit: Owner of /var/log/barman
$ ls -ld /var/log/barman
drwxr-x--- 2 ubuntu ubuntu 4096 Dec 3 06:37 /var/log/barman
Edit: Output of barman diagnose
$ barman diagnose
2017-12-15 11:27:05,588 [3812] barman.utils WARNING: Failed opening the requested log file. Using standard error instead.
{
"global": {
"config": {
"barman_home": "/home/ubuntu/barman",
"barman_user": "ubuntu",
"compression": "bzip2",
"configuration_files_directory": "/home/ubuntu/barman.conf.d",
"errors_list": [],
"last_backup_maximum_age": "2 WEEKS",
"log_file": "/var/log/barman/barman.log",
"log_level": "INFO",
"minimum_redundancy": "3",
"path_prefix": "/home/ubuntu/pg/bin",
"retention_policy": "RECOVERY WINDOW OF 4 WEEKS"
},
"system_info": {
"barman_ver": "2.3",
"kernel_ver": "REDACTED",
"python_ver": "",
"release": "Distributor ID:\tUbuntu\nDescription:\tUbuntu 14.04.5 LTS\nRelease:\t14.04\nCodename:\ttrusty",
"rsync_ver": "rsync version 3.1.0 protocol version 31",
"ssh_ver": ""
}
},
"servers": {
"pg": {
"backups": {},
"config": {
"active": true,
"archiver": false,
"archiver_batch_size": 0,
"backup_directory": "/home/ubuntu/barman/pg",
"backup_method": "postgres",
"backup_options": "concurrent_backup",
"bandwidth_limit": null,
"barman_home": "/home/ubuntu/barman",
"barman_lock_directory": "/home/ubuntu/barman",
"basebackup_retry_sleep": 30,
"basebackup_retry_times": 0,
"basebackups_directory": "/home/ubuntu/barman/pg/base",
"check_timeout": 30,
"compression": "bzip2",
"conninfo": "host=REDACTED user=REDACTED dbname=REDACTED",
"custom_compression_filter": null,
"custom_decompression_filter": null,
"description": "pg DB",
"disabled": false,
"errors_directory": "/home/ubuntu/barman/pg/errors",
"immediate_checkpoint": false,
"incoming_wals_directory": "/home/ubuntu/barman/pg/incoming",
"last_backup_maximum_age": "14 days",
"max_incoming_wals_queue": null,
"minimum_redundancy": 3,
"msg_list": [],
"name": "pg",
"network_compression": false,
"parallel_jobs": 1,
"path_prefix": "/home/ubuntu/pg/bin",
"post_archive_retry_script": null,
"post_archive_script": null,
"post_backup_retry_script": null,
"post_backup_script": null,
"pre_archive_retry_script": null,
"pre_archive_script": null,
"pre_backup_retry_script": null,
"pre_backup_script": null,
"recovery_options": "",
"retention_policy": "window 4 w",
"retention_policy_mode": "auto",
"reuse_backup": null,
"slot_name": "pgbackup",
"ssh_command": null,
"streaming_archiver": true,
"streaming_archiver_batch_size": 0,
"streaming_archiver_name": "barman_receive_wal",
"streaming_backup_name": "barman_streaming_backup",
"streaming_conninfo": "host=REDACTED user=REDACTED dbname=REDACTED",
"streaming_wals_directory": "/home/ubuntu/barman/pg/streaming",
"tablespace_bandwidth_limit": null,
"wal_retention_policy": "simple-wal 4 w",
"wals_directory": "/home/ubuntu/barman/pg/wals"
},
"status": {
"config_file": "/etc/postgresql/9.4/main/postgresql.conf",
"connection_error": null,
"current_size": 6165378560.0,
"current_xlog": "000000010000005A0000000D",
"data_directory": "/var/lib/postgresql/9.4/main",
"hba_file": "/etc/postgresql/9.4/main/pg_hba.conf",
"ident_file": "/etc/postgresql/9.4/main/pg_ident.conf",
"is_in_recovery": false,
"is_superuser": true,
"pg_basebackup_bwlimit": true,
"pg_basebackup_compatible": true,
"pg_basebackup_installed": true,
"pg_basebackup_path": "/home/ubuntu/pg/bin/pg_basebackup",
"pg_basebackup_tbls_mapping": true,
"pg_basebackup_version": "9.4.0",
"pg_receivexlog_compatible": true,
"pg_receivexlog_installed": true,
"pg_receivexlog_path": "/home/ubuntu/pg/bin/pg_receivexlog",
"pg_receivexlog_supports_slots": true,
"pg_receivexlog_synchronous": false,
"pg_receivexlog_version": "9.4.0",
"pgespresso_installed": false,
"replication_slot": [
"pgbackup",
true,
"5A/D000000"
],
"replication_slot_support": true,
"server_txt_version": "9.4.4",
"streaming": true,
"streaming_supported": true,
"synchronous_standby_names": [
""
],
"systemid": "6202911203760332717",
"timeline": 1,
"wal_level": "hot_standby",
"xlogpos": "5A/D4E6CA8"
},
"wals": {
"last_archived_wal_per_timeline": {
"00000001": {
"compression": "bzip2",
"name": "000000010000005A0000000C",
"size": 1679,
"time": 1513163133.925488
}
}
}
}
}
}
2017-12-15 11:27:07,611 [3812] barman.diagnose INFO: {
"global": {
"config": {
"barman_home": "/home/ubuntu/barman",
"barman_user": "ubuntu",
"compression": "bzip2",
"configuration_files_directory": "/home/ubuntu/barman.conf.d",
"errors_list": [],
"last_backup_maximum_age": "2 WEEKS",
"log_file": "/var/log/barman/barman.log",
"log_level": "INFO",
"minimum_redundancy": "3",
"path_prefix": "/home/ubuntu/pg/bin",
"retention_policy": "RECOVERY WINDOW OF 4 WEEKS"
},
"system_info": {
"barman_ver": "2.3",
"kernel_ver": "REDACTED",
"python_ver": "",
"release": "Distributor ID:\tUbuntu\nDescription:\tUbuntu 14.04.5 LTS\nRelease:\t14.04\nCodename:\ttrusty",
"rsync_ver": "rsync version 3.1.0 protocol version 31",
"ssh_ver": ""
}
},
"servers": {
"pg": {
"backups": {},
"config": {
"active": true,
"archiver": false,
"archiver_batch_size": 0,
"backup_directory": "/home/ubuntu/barman/pg",
"backup_method": "postgres",
"backup_options": "concurrent_backup",
"bandwidth_limit": null,
"barman_home": "/home/ubuntu/barman",
"barman_lock_directory": "/home/ubuntu/barman",
"basebackup_retry_sleep": 30,
"basebackup_retry_times": 0,
"basebackups_directory": "/home/ubuntu/barman/pg/base",
"check_timeout": 30,
"compression": "bzip2",
"conninfo": "host=REDACTED user=REDACTED dbname=REDACTED",
"custom_compression_filter": null,
"custom_decompression_filter": null,
"description": "pg DB",
"disabled": false,
"errors_directory": "/home/ubuntu/barman/pg/errors",
"immediate_checkpoint": false,
"incoming_wals_directory": "/home/ubuntu/barman/pg/incoming",
"last_backup_maximum_age": "14 days",
"max_incoming_wals_queue": null,
"minimum_redundancy": 3,
"msg_list": [],
"name": "pg",
"network_compression": false,
"parallel_jobs": 1,
"path_prefix": "/home/ubuntu/pg/bin",
"post_archive_retry_script": null,
"post_archive_script": null,
"post_backup_retry_script": null,
"post_backup_script": null,
"pre_archive_retry_script": null,
"pre_archive_script": null,
"pre_backup_retry_script": null,
"pre_backup_script": null,
"recovery_options": "",
"retention_policy": "window 4 w",
"retention_policy_mode": "auto",
"reuse_backup": null,
"slot_name": "pgbackup",
"ssh_command": null,
"streaming_archiver": true,
"streaming_archiver_batch_size": 0,
"streaming_archiver_name": "barman_receive_wal",
"streaming_backup_name": "barman_streaming_backup",
"streaming_conninfo": "host=REDACTED user=REDACTED dbname=REDACTED",
"streaming_wals_directory": "/home/ubuntu/barman/pg/streaming",
"tablespace_bandwidth_limit": null,
"wal_retention_policy": "simple-wal 4 w",
"wals_directory": "/home/ubuntu/barman/pg/wals"
},
"status": {
"config_file": "/etc/postgresql/9.4/main/postgresql.conf",
"connection_error": null,
"current_size": 6165378560.0,
"current_xlog": "000000010000005A0000000D",
"data_directory": "/var/lib/postgresql/9.4/main",
"hba_file": "/etc/postgresql/9.4/main/pg_hba.conf",
"ident_file": "/etc/postgresql/9.4/main/pg_ident.conf",
"is_in_recovery": false,
"is_superuser": true,
"pg_basebackup_bwlimit": true,
"pg_basebackup_compatible": true,
"pg_basebackup_installed": true,
"pg_basebackup_path": "/home/ubuntu/pg/bin/pg_basebackup",
"pg_basebackup_tbls_mapping": true,
"pg_basebackup_version": "9.4.0",
"pg_receivexlog_compatible": true,
"pg_receivexlog_installed": true,
"pg_receivexlog_path": "/home/ubuntu/pg/bin/pg_receivexlog",
"pg_receivexlog_supports_slots": true,
"pg_receivexlog_synchronous": false,
"pg_receivexlog_version": "9.4.0",
"pgespresso_installed": false,
"replication_slot": [
"pgbackup",
true,
"5A/D000000"
],
"replication_slot_support": true,
"server_txt_version": "9.4.4",
"streaming": true,
"streaming_supported": true,
"synchronous_standby_names": [
""
],
"systemid": "6202911203760332717",
"timeline": 1,
"wal_level": "hot_standby",
"xlogpos": "5A/D4E6CA8"
},
"wals": {
"last_archived_wal_per_timeline": {
"00000001": {
"compression": "bzip2",
"name": "000000010000005A0000000C",
"size": 1679,
"time": 1513163133.925488
}
}
}
}
}
}
Best Answer
Looks like you have an
/etc/logrotate.d/barmanfile that needs editing. Look for that, change the linecreate 0640 barman admtocreate 0640 ubuntu ubuntuand that should fix this issue for you.