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Diffstat (limited to 'doc/cephfs/mds-journaling.rst')
| -rw-r--r-- | doc/cephfs/mds-journaling.rst | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/doc/cephfs/mds-journaling.rst b/doc/cephfs/mds-journaling.rst index b6ccf27c8c0..9325eab7a2d 100644 --- a/doc/cephfs/mds-journaling.rst +++ b/doc/cephfs/mds-journaling.rst @@ -141,14 +141,12 @@ The targetted size of a log segment in terms of number of events is controlled b .. confval:: mds_log_events_per_segment -The frequency of major segments (noted by the journaling of the latest ``ESubtreeMap``) is controlled by: +The number of minor mds log segments since last major segment is controlled by: -.. confval:: mds_log_major_segment_event_ratio +.. confval:: mds_log_minor_segments_per_major_segment -When ``mds_log_events_per_segment * mds_log_major_segment_event_ratio`` -non-``ESubtreeMap`` events are logged, the MDS will journal a new -``ESubtreeMap``. This is necessary to allow the journal to shrink in size -during the trimming of expired segments. +This controls how often the MDS trims expired log segments (higher the value, less +often the MDS updates the journal expiry position for trimming). The target maximum number of segments is controlled by: |