projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | =========== |
| 2 | Journaler | |
| 3 | =========== | |
| 4 | ||
| 5 | ``journaler write head interval`` | |
| 6 | ||
| 7 | :Description: How frequently to update the journal head object | |
| 8 | :Type: Integer | |
| 9 | :Required: No | |
| 10 | :Default: ``15`` | |
| 11 | ||
| 12 | ||
| 13 | ``journaler prefetch periods`` | |
| 14 | ||
| 15 | :Description: How many stripe periods to read-ahead on journal replay | |
| 16 | :Type: Integer | |
| 17 | :Required: No | |
| 18 | :Default: ``10`` | |
| 19 | ||
| 20 | ||
| 21 | ``journal prezero periods`` | |
| 22 | ||
| 23 | :Description: How many stripe periods to zero ahead of write position | |
| 24 | :Type: Integer | |
| 25 | :Required: No | |
| 26 | :Default: ``10`` | |
| 27 | ||
| 28 | ``journaler batch interval`` | |
| 29 | ||
| 30 | :Description: Maximum additional latency in seconds we incur artificially. | |
| 31 | :Type: Double | |
| 32 | :Required: No | |
| 33 | :Default: ``.001`` | |
| 34 | ||
| 35 | ||
| 36 | ``journaler batch max`` | |
| 37 | ||
| c07f9fc5 | 38 | :Description: Maximum bytes we will delay flushing. |
| 7c673cae FG |
39 | :Type: 64-bit Unsigned Integer |
| 40 | :Required: No | |
| 41 | :Default: ``0`` |