def test_pv_stale_reload_all_stale(stale_pv):
vg_name, good_pv_name, stale_pv_name = stale_pv
# Invalidate VG and its PVs.
lvm.invalidateVG(vg_name, invalidatePVs=True)
# Reloading all PVs will return them as Unreadable due to missing
# stale PV.
assert set(lvm.getAllPVs()) == {
lvm.Unreadable(good_pv_name),
lvm.Unreadable(stale_pv_name)
}
def test_lv_reload_error_one_stale(fake_devices, no_delay):
fake_runner = FakeRunner(rc=5, err=b"Fake lvm error")
lc = lvm.LVMCache(fake_runner)
lc._lvs = {
("vg-name", "lv-name"): lvm.Stale("lv-name"),
("vg-name", "other-lv"): lvm.Stale("other-lv"),
}
lv = lc.getLv("vg-name", "lv-name")
# Mark lv as unreadable. Because we always reload all lvs, the other lvs is
# also marked as unreadable.
assert lc._lvs == {
("vg-name", "lv-name"): lvm.Unreadable("lv-name"),
("vg-name", "other-lv"): lvm.Unreadable("other-lv"),
}
# Report the unreadbale lv.
assert lv.name == "lv-name"
assert isinstance(lv, lvm.Unreadable)
def test_lv_reload_error_all_other_vg(fake_devices, no_delay):
fake_runner = FakeRunner(rc=5, err=b"Fake lvm error")
lc = lvm.LVMCache(fake_runner)
lc._lvs = {("vg-name", "lv-name"): lvm.Stale("lv-name")}
lvs = lc.getLv("vg-name")
# Mark lv as unreadable.
assert lc._lvs == {("vg-name", "lv-name"): lvm.Unreadable("lv-name")}
# Currnetly we don't report stales or unreadables lvs. This is not
# consistent with getLv(vg_name, lv_name).
assert lvs == []
def test_pv_stale_reload_one_stale(stale_pv):
vg_name, good_pv_name, stale_pv_name = stale_pv
# Invalidate VG and its PVs.
lvm.invalidateVG(vg_name, invalidatePVs=True)
# The good pv is still in the cache.
pv = lvm.getPV(good_pv_name)
assert pv.name == good_pv_name
# Reloading the stale pv marks it as Unreadable.
pv = lvm.getPV(stale_pv_name)
assert pv == lvm.Unreadable(stale_pv_name)
def test_pv_stale_reload_invalidated(stale_pv):
vg_name, good_pv_name, stale_pv_name = stale_pv
# Invalidate the good pv.
lvm._lvminfo._invalidatepvs(good_pv_name)
# Reloading the good pv returns it as valid.
pv = lvm.getPV(good_pv_name)
assert pv.name == good_pv_name
# Invalidate the stale pv.
lvm._lvminfo._invalidatepvs(stale_pv_name)
# Reloading the stale pv returns it as Unreadable.
pv = lvm.getPV(stale_pv_name)
assert pv == lvm.Unreadable(stale_pv_name)