Chapter 10. Miscellaneous

mon_max_osd

Description

The maximum number of OSDs allowed in the cluster.

Type

32-bit Integer

Default

10000

mon_globalid_prealloc

Description

The number of global IDs to pre-allocate for clients and daemons in the cluster.

Type

32-bit Integer

Default

100

mon_sync_fs_threshold

Description

Synchronize with the filesystem when writing the specified number of objects. Set it to 0 to disable it.

Type

32-bit Integer

Default

5

mon_subscribe_interval

Description

The refresh interval (in seconds) for subscriptions. The subscription mechanism enables obtaining the cluster maps and log information.

Type

Double

Default

300

mon_stat_smooth_intervals

Description

Ceph will smooth statistics over the last N PG maps.

Type

Integer

Default

2

mon_probe_timeout

Description

Number of seconds the monitor will wait to find peers before bootstrapping.

Type

Double

Default

2.0

mon_daemon_bytes

Description

The message memory cap for metadata server and OSD messages (in bytes).

Type

64-bit Integer Unsigned

Default

400ul << 20

mon_max_log_entries_per_event

Description

The maximum number of log entries per event.

Type

Integer

Default

4096