Ceph debugging and logging configuration options

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Logging and debugging settings are not required in a Ceph configuration file, but you can override default settings as needed.

The options take a single item that is assumed to be the default for all daemons regardless of channel. For example, specifying "info" is interpreted as "default=info". However, options can also take key/value pairs. For example, "default=daemon audit=local0" is interpreted as "default all to daemon, override audit with local0."

log_file: Description
The location of the logging file for the cluster.; Type
String; Required
No; Default
/var/log/ceph/$cluster-$name.log
mon_cluster_log_file: Description The location of the monitor cluster’s log file.; Type String; Required No; Default
/var/log/ceph/$cluster.log
log_max_new: Description
The maximum number of new log files.; Type
Integer; Required
No; Default
1000
log_max_recent: Description
The maximum number of recent events to include in a log file.; Type
Integer; Required
No; Default
10000
log_flush_on_exit: Description
Determines if Ceph flushes the log files after exit.; Type
Boolean; Required
No; Default
true
mon_cluster_log_file_level: Description
The level of file logging for the monitor cluster. Valid settings include "debug", "info", "sec", "warn", and "error".; Type
String; Default
"info"
log_to_stderr: Description
Determines if logging messages appear in stderr.; Type
Boolean; Required
No; Default
true
err_to_stderr: Description
Determines if error messages appear in stderr.; Type
Boolean; Required
No; Default
true
log_to_syslog: Description
Determines if logging messages appear in syslog.; Type
Boolean; Required
No; Default
false
err_to_syslog: Description
Determines if error messages appear in syslog.; Type
Boolean; Required
No; Default
false
clog_to_syslog: Description
Determines if clog messages will be sent to syslog.; Type
Boolean; Required
No; Default
false
mon_cluster_log_to_syslog: Description
Determines if the cluster log will be output to syslog.; Type
Boolean; Required
No; Default
false
mon_cluster_log_to_syslog_level: Description
The level of syslog logging for the monitor cluster. Valid settings include "debug", "info", "sec", "warn", and "error".; Type
String; Default
"info"
mon_cluster_log_to_syslog_facility: Description
The facility generating the syslog output. This is usually set to "daemon" for the Ceph daemons.; Type
String; Default
"daemon"
clog_to_monitors: Description
Determines if clog messages will be sent to monitors.; Type
Boolean; Required
No; Default
true
mon_cluster_log_to_graylog: Description
Determines if the cluster will output log messages to graylog.; Type
String; Default
"false"
mon_cluster_log_to_graylog_host: Description
The IP address of the graylog host. If the graylog host is different from the monitor host, override this setting with the appropriate IP address.; Type
String; Default
"127.0.0.1"
mon_cluster_log_to_graylog_port: Description
Graylog logs will be sent to this port. Ensure the port is open for receiving data.; Type
String; Default
"12201"
osd_preserve_trimmed_log: Description
Preserves trimmed logs after trimming.; Type
Boolean; Required
No; Default
false
osd_tmapput_sets_uses_tmap: Description
Uses tmap. For debug only.; Type
Boolean; Required
No; Default
false
osd_min_pg_log_entries: Description
The minimum number of log entries for placement groups.; Type
32-bit Unsigned Integer; Required
No; Default
1000
osd_op_log_threshold: Description
Number of op log messages to show up in one pass.; Type
Integer; Required
No; Default
5