2b292c1e5c
Extended the test to cover the retrying of the query on the master that happens when the slave is lagging behind.
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/**
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* MXS-1778: Use GTID from OK packets for consistent reads
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*
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* https://jira.mariadb.org/browse/MXS-1778
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*/
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#include "testconnections.h"
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static std::string master;
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void basic_test(TestConnections& test)
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{
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test.tprintf("%s", __func__);
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const int N_QUERIES = 100;
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test.maxscales->connect();
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test.try_query(test.maxscales->conn_rwsplit[0], "CREATE OR REPLACE TABLE test.t1(id INT)");
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for (int i = 0; i < N_QUERIES; i++)
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{
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std::string value = std::to_string(i);
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std::string insert = "INSERT INTO test.t1 VALUES (" + value + ")";
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std::string select = "SELECT @@server_id, COUNT(*) FROM test.t1 WHERE id = " + value;
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test.try_query(test.maxscales->conn_rwsplit[0], "%s", insert.c_str());
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Row row = get_row(test.maxscales->conn_rwsplit[0], select);
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test.expect(!row.empty() && row [0] != master && row[1] == "1",
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"At %d: Row is %s",
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i,
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row.empty() ? "empty" : (row[0] + " " + row[1]).c_str());
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}
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test.try_query(test.maxscales->conn_rwsplit[0], "DROP TABLE test.t1");
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test.maxscales->disconnect();
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}
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void master_retry_test(TestConnections& test)
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{
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test.tprintf("%s", __func__);
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const int MAX_QUERIES = 10000;
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bool ok = false;
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test.maxctrl("alter service RW-Split-Router causal_reads_timeout 1");
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auto conn = test.maxscales->rwsplit();
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test.expect(conn.connect(), "Connection should work");
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conn.query("CREATE OR REPLACE TABLE test.t1(id INT)");
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for (int i = 0; i < MAX_QUERIES; i++)
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{
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conn.query("INSERT INTO test.t1 VALUES (" + std::to_string(i) + ")");
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conn.query("INSERT INTO test.t1 SELECT * FROM test.t1");
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auto row = conn.row("SELECT @@server_id");
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if (row[0] == master)
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{
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test.tprintf("Query number %d was retried on the master", i + 1);
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ok = true;
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break;
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}
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}
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conn.query("DROP TABLE test.t1");
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test.expect(ok, "Master should reply at least once");
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}
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int main(int argc, char** argv)
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{
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Mariadb_nodes::require_gtid(true);
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TestConnections::require_repl_version("10.3.8");
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TestConnections test(argc, argv);
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test.repl->execute_query_all_nodes("SET GLOBAL session_track_system_variables='last_gtid'");
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test.repl->connect();
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master = get_row(test.repl->nodes[0], "SELECT @@server_id")[0];
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test.repl->disconnect();
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basic_test(test);
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master_retry_test(test);
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return test.global_result;
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}
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