lib/wsrep-lib
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SR applying implementation, unit tests.

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This commit is contained in:
Teemu Ollakka
2018-06-14 11:14:40 +03:00
parent 39c9ef8a63
commit a8ab9c6dbd
9 changed files with 188 additions and 49 deletions
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30
dbsim/dbms_simulator.cpp
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@ -37,6 +37,7 @@ struct dbms_simulator_params
size_t n_servers;
size_t n_clients;
size_t n_transactions;
size_t n_rows;
size_t alg_freq;
std::string wsrep_provider;
std::string wsrep_provider_options;
@ -46,6 +47,7 @@ struct dbms_simulator_params
: n_servers(0)
, n_clients(0)
, n_transactions(0)
, n_rows(1000)
, alg_freq(0)
, wsrep_provider()
, wsrep_provider_options()
@ -265,11 +267,13 @@ public:
// Client context management
wsrep::client_context* local_client_context();
wsrep::client_context& streaming_applier_client_context(
const wsrep::id&, const wsrep::transaction_id&) override
wsrep::client_context* streaming_applier_client_context() override
{
throw wsrep::not_implemented_error();
}
void log_dummy_write_set(wsrep::client_context&, const wsrep::ws_meta&)
override
{ }
size_t next_transaction_id()
{
return (last_transaction_id_.fetch_add(1) + 1);
@ -308,12 +312,12 @@ public:
dbms_client(dbms_server& server,
const wsrep::client_id& id,
enum wsrep::client_context::mode mode,
size_t n_transactions)
const dbms_simulator_params& params)
: wsrep::client_context(mutex_, server, id, mode)
, mutex_()
, server_(server)
, se_trx_(server_.storage_engine())
, n_transactions_(n_transactions)
, params_(params)
, stats_()
{ }
@ -324,7 +328,7 @@ public:
void start()
{
for (size_t i(0); i < n_transactions_; ++i)
for (size_t i(0); i < params_.n_transactions; ++i)
{
run_one_transaction();
report_progress(i + 1);
@ -458,7 +462,7 @@ private:
// wsrep::log_debug() << "Generate write set";
assert(transaction().active());
assert(err == 0);
int data(std::rand() % 10000000);
int data(std::rand() % params_.n_rows);
std::ostringstream os;
os << data;
wsrep::key key(wsrep::key::exclusive);
@ -513,13 +517,13 @@ private:
{
wsrep::log() << "client: " << id().get()
<< " transactions: " << i
<< " " << 100*double(i)/n_transactions_ << "%";
<< " " << 100*double(i)/params_.n_transactions << "%";
}
}
wsrep::default_mutex mutex_;
dbms_server& server_;
dbms_storage_engine::transaction se_trx_;
const size_t n_transactions_;
const dbms_simulator_params params_;
struct stats stats_;
};
@ -529,7 +533,7 @@ void dbms_server::applier_thread()
{
wsrep::client_id client_id(last_client_id_.fetch_add(1) + 1);
dbms_client applier(*this, client_id,
wsrep::client_context::m_applier, 0);
wsrep::client_context::m_applier, simulator_.params());
enum wsrep::provider::status ret(provider().run_applier(&applier));
wsrep::log() << "Applier thread exited with error code " << ret;
}
@ -538,7 +542,9 @@ wsrep::client_context* dbms_server::local_client_context()
{
std::ostringstream id_os;
size_t client_id(++last_client_id_);
return new dbms_client(*this, client_id, wsrep::client_context::m_replicating, 0);
return new dbms_client(*this, client_id,
wsrep::client_context::m_replicating,
simulator_.params());
}
void dbms_server::start_clients()
@ -576,7 +582,7 @@ void dbms_server::start_client(size_t id)
auto client(std::make_shared<dbms_client>(
*this, id,
wsrep::client_context::m_replicating,
simulator_.params().n_transactions));
simulator_.params()));
clients_.push_back(client);
client_threads_.push_back(
boost::thread(&dbms_server::client_thread, this, client));
@ -764,6 +770,8 @@ int main(int argc, char** argv)
"number of clients to start per server")
("transactions", po::value<size_t>(&params.n_transactions),
"number of transactions run by a client")
("rows", po::value<size_t>(&params.n_rows),
"number of rows per table")
("alg-freq", po::value<size_t>(&params.alg_freq),
"ALG frequency")
("debug-log-level", po::value<int>(&params.debug_log_level),