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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 18:24:20 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 18:24:20 +0000 |
| commit | 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch) | |
| tree | e5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /doc/dev/osd_internals/scrub.rst | |
| parent | Initial commit. (diff) | |
| download | ceph-upstream.tar.xz ceph-upstream.zip | |
Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'doc/dev/osd_internals/scrub.rst')
| -rw-r--r-- | doc/dev/osd_internals/scrub.rst | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/doc/dev/osd_internals/scrub.rst b/doc/dev/osd_internals/scrub.rst new file mode 100644 index 00000000..f20dc042 --- /dev/null +++ b/doc/dev/osd_internals/scrub.rst @@ -0,0 +1,41 @@ + +Scrub internals and diagnostics +=============================== + +Scrubbing Behavior Table +------------------------ + ++-------------------------------------------------+----------+-----------+---------------+----------------------+ +| Flags | none | noscrub | nodeep_scrub | noscrub/nodeep_scrub | ++=================================================+==========+===========+===============+======================+ +| Periodic tick | S | X | S | X | ++-------------------------------------------------+----------+-----------+---------------+----------------------+ +| Periodic tick after osd_deep_scrub_interval | D | D | S | X | ++-------------------------------------------------+----------+-----------+---------------+----------------------+ +| Initiated scrub | S | S | S | S | ++-------------------------------------------------+----------+-----------+---------------+----------------------+ +| Initiated scrub after osd_deep_scrub_interval | D | D | S | S | ++-------------------------------------------------+----------+-----------+---------------+----------------------+ +| Initiated deep scrub | D | D | D | D | ++-------------------------------------------------+----------+-----------+---------------+----------------------+ + +- X = Do nothing +- S = Do regular scrub +- D = Do deep scrub + +State variables +--------------- + +- Periodic tick state is !must_scrub && !must_deep_scrub && !time_for_deep +- Periodic tick after osd_deep_scrub_interval state is !must_scrub && !must_deep_scrub && time_for_deep +- Initiated scrub state is must_scrub && !must_deep_scrub && !time_for_deep +- Initiated scrub after osd_deep_scrub_interval state is must scrub && !must_deep_scrub && time_for_deep +- Initiated deep scrub state is must_scrub && must_deep_scrub + +Scrub Reservations +------------------ + +An OSD daemon command dumps total local and remote reservations:: + + ceph daemon osd.<id> dump_scrub_reservations + |