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Do not sync peer OSDs before listing

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Sync before listing was added to wait for all PG writes possibly left in queue
from the previous master to finish before listing it

But in fact it may block the cluster when EC is used and some unstable writes
are left in the queue - they block journal flushing, rollback/stabilize is
required to unblock them, but rollback/stabilize may only happen after PG is
peered. But peering needs listings, listings are requested only after sync, and
sync itself waits for currently blocked writes waiting in the queue
This commit is contained in:
Vitaliy Filippov
2023-01-03 00:05:45 +03:00
parent 71d6d9f868
commit e950c024d3
4 changed files with 4 additions and 76 deletions
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src/blockstore_impl.cpp
+1 -1
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@@ -583,7 +583,7 @@ void blockstore_impl_t::process_list(blockstore_op_t *op)
replace_stable(dirty_it->first.oid, 0, clean_stable_count, stable_count, stable);
}
}
else if (IS_STABLE(dirty_it->second.state))
else if (IS_STABLE(dirty_it->second.state) || (dirty_it->second.state & BS_ST_INSTANT))
{
// First try to replace a clean stable version in the first part of the list
if (!replace_stable(dirty_it->first.oid, dirty_it->first.version, 0, clean_stable_count, stable))