diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /doc/dev/osd_internals/scrub.rst | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
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 000000000..149509799 --- /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 + |