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print db pool stats periodically

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Grant Limberg 2021-09-02 12:45:19 -07:00
parent 1a1d7d9ada
commit 40f376e2b9
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1 changed files with 11 additions and 15 deletions
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20
controller/PostgreSQL.cpp
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@ -806,7 +806,7 @@ void PostgreSQL::heartbeat()
std::string build = std::to_string(ZEROTIER_ONE_VERSION_BUILD); std::string build = std::to_string(ZEROTIER_ONE_VERSION_BUILD);
std::string now = std::to_string(ts); std::string now = std::to_string(ts);
std::string host_port = std::to_string(_listenPort); std::string host_port = std::to_string(_listenPort);
std::string use_redis = "false"; // (_rc != NULL) ? "true" : "false"; std::string use_redis = (_rc != NULL) ? "true" : "false";
try { try {
pqxx::result res = w.exec0("INSERT INTO ztc_controller (id, cluster_host, last_alive, public_identity, v_major, v_minor, v_rev, v_build, host_port, use_redis) " pqxx::result res = w.exec0("INSERT INTO ztc_controller (id, cluster_host, last_alive, public_identity, v_major, v_minor, v_rev, v_build, host_port, use_redis) "
@ -1309,17 +1309,11 @@ void PostgreSQL::onlineNotificationThread()
void PostgreSQL::onlineNotification_Postgres() void PostgreSQL::onlineNotification_Postgres()
{ {
try {
auto c = _pool->borrow();
_pool->unborrow(c);
} catch(std::exception &e) {
fprintf(stderr, "error getting connection in onlineNotification thread\n");
exit(5);
}
_connected = 1; _connected = 1;
nlohmann::json jtmp1, jtmp2; nlohmann::json jtmp1, jtmp2;
while (_run == 1) { while (_run == 1) {
auto c = _pool->borrow();
try { try {
std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > lastOnline; std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > lastOnline;
{ {
@ -1327,7 +1321,6 @@ void PostgreSQL::onlineNotification_Postgres()
lastOnline.swap(_lastOnline); lastOnline.swap(_lastOnline);
} }
auto c = _pool->borrow();
pqxx::work w(*c->c); pqxx::work w(*c->c);
// using pqxx::stream_to would be a really nice alternative here, but // using pqxx::stream_to would be a really nice alternative here, but
@ -1362,9 +1355,8 @@ void PostgreSQL::onlineNotification_Postgres()
try { try {
pqxx::row r = w.exec_params1("SELECT id, network_id FROM ztc_member WHERE network_id = $1 AND id = $2", pqxx::row r = w.exec_params1("SELECT id, network_id FROM ztc_member WHERE network_id = $1 AND id = $2",
networkId, memberId); networkId, memberId);
} catch (pqxx::unexpected_rows &e) { } catch (pqxx::unexpected_rows &e) {
fprintf(stderr, "Member count failed: %s\n", e.what()); // fprintf(stderr, "Member count failed: %s\n", e.what());
continue; continue;
} }
@ -1395,10 +1387,14 @@ void PostgreSQL::onlineNotification_Postgres()
w.commit(); w.commit();
} }
// fprintf(stderr, "Updated online status of %d members\n", updateCount); // fprintf(stderr, "Updated online status of %d members\n", updateCount);
_pool->unborrow(c);
} catch (std::exception &e) { } catch (std::exception &e) {
fprintf(stderr, "%s: error in onlinenotification thread: %s\n", _myAddressStr.c_str(), e.what()); fprintf(stderr, "%s: error in onlinenotification thread: %s\n", _myAddressStr.c_str(), e.what());
} }
_pool->unborrow(c);
ConnectionPoolStats stats = _pool->get_stats();
fprintf(stderr, "pool stats: in use size: %llu, available size: %llu, total: %llu\n",
stats.borrowed_size, stats.pool_size, (stats.borrowed_size, stats.pool_size));
std::this_thread::sleep_for(std::chrono::seconds(10)); std::this_thread::sleep_for(std::chrono::seconds(10));
} }