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Read recovered position from sst_received() after initialization

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In general the position where the storage recovers after a SST
cannot be known untile the recovery process is over. This in turn
means that the position cannot be known when the server_state
sst_received() method is called. Worked around the problem by
introducing get_position() method into server service which
can be used to get the position from stable storage after SST
has completed and the state has been recovered.
This commit is contained in:
Teemu Ollakka
2019-01-14 13:11:57 +02:00
parent 17fc8c16de
commit 89b3561ad8
8 changed files with 43 additions and 13 deletions
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5
dbsim/db_server_service.cpp
View File

@ -128,6 +128,11 @@ wsrep::view db::server_service::get_view(wsrep::client_service&,
return my_view;
}
wsrep::gtid db::server_service::get_position(wsrep::client_service&)
{
throw wsrep::not_implemented_error();
}
void db::server_service::log_state_change(
enum wsrep::server_state::state prev_state,
enum wsrep::server_state::state current_state)

1
dbsim/db_server_service.hpp
View File

@ -50,6 +50,7 @@ namespace db
const wsrep::view&) override;
wsrep::view get_view(wsrep::client_service&, const wsrep::id&)
override;
wsrep::gtid get_position(wsrep::client_service&) override;
void log_state_change(enum wsrep::server_state::state,
enum wsrep::server_state::state) override;
int wait_committing_transactions(int) override;

2
dbsim/db_simulator.cpp
View File

@ -67,7 +67,7 @@ void db::simulator::sst(db::server& server,
db::client dummy(*(i->second), wsrep::client_id(-1),
wsrep::client_state::m_local, params());
i->second->server_state().sst_received(dummy.client_service(), gtid, 0);
i->second->server_state().sst_received(dummy.client_service(), 0);
server.server_state().sst_sent(gtid, 0);
}