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mon/OSDMonitor: increase last_epoch_clean's lower bound if possible

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Signed-off-by: Kefu Chai <kchai@redhat.com>
This commit is contained in:
Kefu Chai 2017-04-28 08:44:46 +08:00
parent b67c5c7aa4
commit 7cc515e44a
1 changed files with 9 additions and 1 deletions
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10
src/mon/OSDMonitor.cc
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@ -80,13 +80,21 @@ void LastEpochClean::Lec::report(ps_t ps, epoch_t last_epoch_clean)
if (epoch_by_pg.size() <= ps) {
epoch_by_pg.resize(ps + 1, 0);
}
if (epoch_by_pg[ps] >= last_epoch_clean) {
const auto old_lec = epoch_by_pg[ps];
if (old_lec >= last_epoch_clean) {
// stale lec
return;
}
epoch_by_pg[ps] = last_epoch_clean;
if (last_epoch_clean < floor) {
floor = last_epoch_clean;
} else if (last_epoch_clean > floor) {
if (old_lec == floor) {
// probably should increase floor?
auto new_floor = std::min_element(std::begin(epoch_by_pg),
std::end(epoch_by_pg));
floor = *new_floor;
}
}
if (ps != next_missing) {
return;