Journal options
Understand the journal options for Ceph Block Devices.
Table 1 lists the journal
configuration options for Ceph Block Devices.
| Option | Description | Type | Default |
|---|---|---|---|
rbd_journal_order |
The number of bits to shift to compute the journal object maximum size. The value is between
12 and 64. |
32-bit unsigned integer | 24 |
rbd_journal_splay_width |
The number of active journal objects. | 32-bit unsigned integer | 4 |
rbd_journal_commit_age |
The commit time interval in seconds. | Double Precision Floating Point Number | 5 |
rbd_journal_object_flush_interval |
The maximum number of pending commits per a journal object. | Integer | 0 |
rbd_journal_object_flush_bytes |
The maximum number of pending bytes per a journal object. | Integer | 0 |
rbd_journal_object_flush_age |
The maximum time interval in seconds for pending commits. | Double Precision Floating Point Number | 0 |
rbd_journal_pool |
Specifies a pool for journal objects. | String | "" |