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Check local sequential consistency in dbsim

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- Release commit time critical section in callback
- Check the consistency inside commit order critical section

Other: Add 2pc switch to dbsim
This commit is contained in:
Teemu Ollakka
2024-11-28 12:33:21 +02:00
parent 3de594b662
commit 7994288534
8 changed files with 116 additions and 43 deletions
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14
dbsim/db_high_priority_service.cpp
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@ -26,6 +26,7 @@ db::high_priority_service::high_priority_service(
: wsrep::high_priority_service(server.server_state())
, server_(server)
, client_(client)
, commit_seqno_()
{ }
int db::high_priority_service::start_transaction(
@ -52,11 +53,14 @@ int db::high_priority_service::adopt_transaction(const wsrep::transaction&)
int db::high_priority_service::apply_write_set(
const wsrep::ws_meta&,
const wsrep::const_buffer&,
const wsrep::const_buffer& buf,
wsrep::mutable_buffer&)
{
client_.se_trx_.start(&client_);
client_.se_trx_.apply(client_.client_state().transaction());
assert(buf.size() > sizeof(uint64_t));
::memcpy(&commit_seqno_, buf.data() + buf.size() - sizeof(uint64_t),
sizeof(uint64_t));
return 0;
}
@ -82,6 +86,14 @@ int db::high_priority_service::commit(const wsrep::ws_handle& ws_handle,
client_.client_state_.prepare_for_ordering(ws_handle, ws_meta, true);
int ret(client_.client_state_.before_commit());
if (ret == 0) client_.se_trx_.commit(ws_meta.gtid());
/* Local client session replaying. */
if (ws_meta.server_id() == server_.server_state().id()
&& client_.params_.check_sequential_consistency)
{
server_.check_sequential_consistency(ws_meta.client_id(),
commit_seqno_);
}
ret = ret || client_.client_state_.ordered_commit();
ret = ret || client_.client_state_.after_commit();
return ret;