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Lock PGs on secondary OSDs to allow local reads and guarantee splitbrain prevention

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This commit is contained in:
Vitaliy Filippov
2025-05-10 15:18:00 +03:00
parent 66dc116f60
commit b2416afb28
21 changed files with 676 additions and 175 deletions
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src/osd/osd_flush.cpp
+3 -11
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@@ -150,14 +150,7 @@ void osd_t::handle_flush_op(bool rollback, pool_id_t pool_id, pg_num_t pg_num, p
{
continue_primary_write(op);
}
if ((pg.state & PG_STOPPING) && pg.inflight == 0 && !pg.flush_batch)
{
finish_stop_pg(pg);
}
else if ((pg.state & PG_REPEERING) && pg.inflight == 0 && !pg.flush_batch)
{
start_pg_peering(pg);
}
continue_pg(pg);
}
}
@@ -254,7 +247,8 @@ bool osd_t::pick_next_recovery(osd_recovery_op_t &op)
restart:
for (auto pg_it = pgs.lower_bound(recovery_last_pg); pg_it != pgs.end(); pg_it++)
{
if ((pg_it->second.state & mask) == check)
auto & src = recovery_last_degraded ? pg_it->second.degraded_objects : pg_it->second.misplaced_objects;
if ((pg_it->second.state & mask) == check && src.size() > 0)
{
auto pool_it = st_cli.pool_config.find(pg_it->first.pool_id);
if (pool_it != st_cli.pool_config.end() && pool_it->second.backfillfull)
@@ -263,8 +257,6 @@ bool osd_t::pick_next_recovery(osd_recovery_op_t &op)
recovery_last_pg.pool_id++;
goto restart;
}
auto & src = recovery_last_degraded ? pg_it->second.degraded_objects : pg_it->second.misplaced_objects;
assert(src.size() > 0);
// Restart scanning from the next object
for (auto obj_it = src.upper_bound(recovery_last_oid); obj_it != src.end(); obj_it++)
{