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492 lines
14 KiB
492 lines
14 KiB
/**
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* @file test_query_rules_routing-t.cpp
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* @brief This test is an initial version for testing query routing to
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* different hostgroups through 'query rules'. It aims to check that
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* arbitrary query rules are properly matched and queries are executed in
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* the target hostgroups for both 'text protocol' and 'prepared statements'.
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*/
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#include <algorithm>
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#include <cstring>
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#include <cmath>
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#include <chrono>
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#include <climits>
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#include <numeric>
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#include <memory>
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#include <string>
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#include <stdio.h>
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#include <vector>
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#include <tuple>
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#include <unistd.h>
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#include "mysql.h"
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#include "mysqld_error.h"
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#include "command_line.h"
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#include "proxysql_utils.h"
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#include "tap.h"
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#include "utils.h"
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int g_seed = 0;
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inline int fastrand() {
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g_seed = (214013*g_seed+2531011);
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return (g_seed>>16)&0x7FFF;
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}
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void gen_random_str(char *s, const int len) {
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g_seed = monotonic_time() ^ getpid() ^ pthread_self();
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static const char alphanum[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz";
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for (int i = 0; i < len; ++i) {
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s[i] = alphanum[fastrand() % (sizeof(alphanum) - 1)];
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}
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s[len] = 0;
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}
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/**
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* @brief For now a query rules test for destination hostgroup is going
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* to consist into:
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*
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* - A set of rules to apply.
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* - A set of queries to exercise those rules.
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* - The destination hostgroup in which the queries are supposed to end.
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*/
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using dst_hostgroup_test =
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std::pair<std::vector<std::string>, std::vector<std::pair<std::string, int>>>;
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/**
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* @brief All supplied queries should be unique, to know that two queries
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* are going to be executed in the backend when a prepared statement
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* is executed: <PREPARE + EXECUTE>
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*/
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std::vector<dst_hostgroup_test> dst_hostgroup_tests {
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{
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{
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (1,1,'^SELECT.*FOR UPDATE',0,1)",
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (2,1,'^SELECT',1,1)"
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},
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{
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{
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"SELECT /* ;%s */ 1",
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1
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},
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{
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"SELECT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id=1",
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1
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},
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{
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"SELECT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 20",
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1
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},
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{
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"SELECT /* ;%s */ SUM(k) c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10",
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1
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},
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{
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"INSERT /* ;%s */ INTO test.reg_test_3427_0 (k) VALUES (2)",
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0
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},
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{
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"UPDATE /* ;%s */ test.reg_test_3427_0 SET pad=\"random\" WHERE id=2",
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0
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},
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{
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"SELECT DISTINCT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10 ORDER BY c",
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1
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}
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}
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},
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{
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{
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (1,1,'^SELECT.*FROM test.reg_test_3427_0 .*',1,1)",
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (2,1,'^SELECT.*FROM test.reg_test_3427_1 .*',0,1)",
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},
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{
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{
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"UPDATE /* ;%s */ test.reg_test_3427_0 SET pad=\"random\" WHERE id=2",
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0
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},
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{
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"SELECT DISTINCT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10 ORDER BY c",
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1
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},
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{
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"SELECT /* ;%s */ c FROM test.reg_test_3427_1 WHERE id BETWEEN 1 AND 10 ORDER BY c",
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0
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},
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{
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"INSERT /* ;%s */ INTO test.reg_test_3427_0 (k) VALUES (2)",
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0
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},
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{
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"SELECT DISTINCT /* ;hostgroup=0;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10 ORDER BY c",
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0
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},
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}
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},
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{
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{
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (1,1,'^SELECT.*FOR UPDATE',0,1)",
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"INSERT INTO mysql_query_rules (rule_id,active,match_digest,destination_hostgroup,apply)"
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" VALUES (2,1,'^SELECT',1,1)"
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},
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{
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{
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"UPDATE /* ;%s */ test.reg_test_3427_0 SET pad=\"random\" WHERE id=2",
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0
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},
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{
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"SELECT /* ;hostgroup=0;%s */ c FROM test.reg_test_3427_0 WHERE id=1",
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0
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},
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{
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"SELECT /* ;hostgroup=0;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 20",
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0
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},
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{
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"SELECT /* ;hostgroup=0;%s */ SUM(k) c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10",
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0
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},
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{
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"SELECT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id=1",
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1
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},
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{
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"SELECT /* ;%s */ c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 20",
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1
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},
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{
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"SELECT /* ;%s */ SUM(k) c FROM test.reg_test_3427_0 WHERE id BETWEEN 1 AND 10",
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1
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}
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}
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}
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};
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/**
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* @brief Get the current query count for a specific hostgroup.
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*
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* @param proxysql_admin A already opened MYSQL connection to ProxySQL admin
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* interface.
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* @param hostgroup_id The 'hostgroup_id' from which get the query count.
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*
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* @return The number of queries that have been executed in that hostgroup id.
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*/
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int get_hostgroup_query_count(MYSQL* proxysql_admin, const int hostgroup_id) {
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if (proxysql_admin == NULL) {
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return EXIT_FAILURE;
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}
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int query_count = -1;
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std::string t_query {
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"SELECT SUM(Queries) FROM stats.stats_mysql_connection_pool WHERE hostgroup=%d"
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};
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std::string query {};
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string_format(t_query, query, hostgroup_id);
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MYSQL_QUERY(proxysql_admin, query.c_str());
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MYSQL_RES* sum_res = mysql_store_result(proxysql_admin);
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MYSQL_ROW row = mysql_fetch_row(sum_res);
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if (row[0]) {
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query_count = atoi(row[0]);
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}
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mysql_free_result(sum_res);
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return query_count;
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}
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/**
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* @brief Simple function that performs a text protocol query and discards the result.
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*
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* @param proxysql A already opened MYSQL connection to ProxySQL.
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* @param query The query to be executed.
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*
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* @return The error code of executing the query.
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*/
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int perform_text_procotol_query(MYSQL* proxysql, const std::string& query) {
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int rc = mysql_query(proxysql, query.c_str());
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if (rc == 0) {
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MYSQL_RES* query_res = mysql_store_result(proxysql);
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if (query_res) {
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mysql_free_result(query_res);
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}
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}
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return rc;
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}
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/**
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* @brief Simple function that performs a stmt query and discards the result.
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*
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* @param proxysql A already opened MYSQL connection to ProxySQL.
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* @param query The query to be executed.
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*
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* @return The error code of executing the query.
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*/
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int perform_stmt_query(MYSQL* proxysql, const std::string& query) {
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int rc = EXIT_FAILURE;
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MYSQL_STMT* stmt = mysql_stmt_init(proxysql);
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if (stmt == NULL) { return EXIT_FAILURE; }
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rc = mysql_stmt_prepare(stmt, query.c_str(), strlen(query.c_str()));
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if (rc) { return EXIT_FAILURE; }
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rc = mysql_stmt_execute(stmt);
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if (rc) { return EXIT_FAILURE; }
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rc = mysql_stmt_close(stmt);
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if (rc) { return EXIT_FAILURE; }
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return rc;
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}
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/**
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* @brief Simple helper function for creating a 'sysbench'
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* alike testing table.
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*
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* @param proxysql A already opened MYSQL connection to ProxySQL.
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*
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* @return EXIT_FAILURE in case of failure or EXIT_SUCCESS otherwise.
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*/
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int create_testing_tables(MYSQL* proxysql, uint32_t num_tables) {
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if (proxysql == NULL) { return EXIT_FAILURE; }
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MYSQL_QUERY(proxysql, "CREATE DATABASE IF NOT EXISTS test");
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for (uint32_t i = 0; i < num_tables; i++) {
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std::string t_drop_table_query {
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"DROP TABLE IF EXISTS test.reg_test_3427_%d"
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};
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std::string t_create_table_query {
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"CREATE TABLE IF NOT EXISTS test.reg_test_3427_%d ("
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" id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,"
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" `k` int(11) NOT NULL DEFAULT '0',"
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" `c` char(120) NOT NULL DEFAULT '',"
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" `pad` char(60) NOT NULL DEFAULT '',"
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" KEY `k_1` (`k`)"
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")"
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};
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std::string t_insert_trivial_val {
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"INSERT INTO test.reg_test_3427_%d (k, c, pad) VALUES (3427, 'foo', 'bar')"
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};
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// Format the queries
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std::string drop_table_query {};
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string_format(t_drop_table_query, drop_table_query, i);
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std::string create_table_query {};
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string_format(t_create_table_query, create_table_query, i);
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std::string insert_trivial_val {};
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string_format(t_insert_trivial_val, insert_trivial_val, i);
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// Perform the queries
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MYSQL_QUERY(proxysql, drop_table_query.c_str());
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MYSQL_QUERY(proxysql, create_table_query.c_str());
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// Insert trivial value, we are only interesting in routing
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MYSQL_QUERY(proxysql, insert_trivial_val.c_str());
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}
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return EXIT_SUCCESS;
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}
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int main(int argc, char** argv) {
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CommandLine cl;
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if (cl.getEnv()) {
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diag("Failed to get the required environmental variables.");
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return -1;
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}
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plan(dst_hostgroup_tests.size());
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MYSQL* proxysql_admin = mysql_init(NULL);
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MYSQL* proxysql_text = mysql_init(NULL);
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MYSQL* proxysql_stmt = mysql_init(NULL);
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if (!mysql_real_connect(proxysql_text, cl.host, cl.username, cl.password, NULL, cl.port, NULL, 0)) {
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fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(proxysql_text));
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return -1;
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}
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if (!mysql_real_connect(proxysql_stmt, cl.host, cl.username, cl.password, NULL, cl.port, NULL, 0)) {
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fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(proxysql_stmt));
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return -1;
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}
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if (!mysql_real_connect(proxysql_admin, cl.host, cl.admin_username, cl.admin_password, NULL, cl.admin_port, NULL, 0)) {
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fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(proxysql_admin));
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return -1;
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}
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// Disable 'auto_increment_delay_multiplex' for avoiding unintentionally
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// disabling multiplexing due to inserts.
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MYSQL_QUERY(proxysql_admin, "SET mysql-auto_increment_delay_multiplex=0");
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MYSQL_QUERY(proxysql_admin, "LOAD MYSQL VARIABLES TO RUNTIME");
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// Create the testing table
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int c_table_res = create_testing_tables(proxysql_text, 2);
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if (c_table_res) { return EXIT_FAILURE; }
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const std::string rep_check_query {
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"SELECT CASE WHEN (SELECT COUNT(*) FROM test.reg_test_3427_0 WHERE id=1) = 1 THEN 'TRUE' ELSE 'FALSE' END"
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};
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int rep_err = wait_for_replication(proxysql_text, proxysql_admin, rep_check_query, 10, 1);
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if (rep_err) {
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fprintf(stderr,
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"File %s, line %d, Error: %s\n",
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__FILE__, __LINE__, "Waiting for replication failed."
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);
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return EXIT_FAILURE;
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}
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for (const auto& dst_hostgroup_test : dst_hostgroup_tests) {
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const auto& query_rules = dst_hostgroup_test.first;
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const auto& queries_hids = dst_hostgroup_test.second;
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// First prepare the query rules
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// ********************************************************************
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MYSQL_QUERY(proxysql_admin, "DELETE FROM mysql_query_rules");
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for (const auto& query_rule : query_rules) {
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MYSQL_QUERY(proxysql_admin, query_rule.c_str());
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}
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MYSQL_QUERY(proxysql_admin, "LOAD MYSQL QUERY RULES TO RUNTIME");
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// ********************************************************************
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// Secondly execute the queries and check the hostgroup
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// ********************************************************************
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bool queries_properly_routed = true;
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std::vector<std::string> text_queries_failed_to_route {};
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std::vector<std::string> stmt_queries_failed_to_route {};
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for (const auto& query_hid : queries_hids) {
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// Create an unique query
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std::string query {};
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std::string rnd_str(static_cast<std::size_t>(20), '\0');
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gen_random_str(&rnd_str[0], 20);
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string_format(query_hid.first, query, rnd_str.c_str());
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// First execute the query for text protocol
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// ********************************************************************
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// Get the current hosgtroup queries
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int cur_hid_queries = get_hostgroup_query_count(proxysql_admin, query_hid.second);
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// Perform the query in a text protocol connection
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int text_prot_res = perform_text_procotol_query(proxysql_text, query);
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if (text_prot_res) {
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diag(
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"Executing 'text_protocol' query: '%s' failed with err code: '%d'",
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query.c_str(),
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text_prot_res
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);
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return EXIT_FAILURE;
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}
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// Get the new hosgtroup queries
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int new_hid_queries = get_hostgroup_query_count(proxysql_admin, query_hid.second);
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if (new_hid_queries - cur_hid_queries != 1) {
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queries_properly_routed = false;
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text_queries_failed_to_route.push_back(query);
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}
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// Secondly execute the query for binary protocol
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// ********************************************************************
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// Get the current hosgtroup queries
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cur_hid_queries = get_hostgroup_query_count(proxysql_admin, query_hid.second);
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// Perform the query in a stmt protocol connection
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int stmt_res = perform_stmt_query(proxysql_stmt, query);
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if (stmt_res) {
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diag(
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"Executing 'stmt' query: '%s' failed with err code: '%d', err: '%s'",
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query.c_str(),
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stmt_res,
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mysql_error(proxysql_stmt)
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);
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return EXIT_FAILURE;
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}
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// Get the new hosgtroup queries
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new_hid_queries = get_hostgroup_query_count(proxysql_admin, query_hid.second);
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if (new_hid_queries - cur_hid_queries != 2) {
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queries_properly_routed = false;
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stmt_queries_failed_to_route.push_back(query);
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}
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}
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if (queries_properly_routed == false) {
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std::string str_query_rules =
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std::accumulate(
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query_rules.begin(),
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query_rules.end(),
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std::string {},
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[](const std::string& a, const std::string& b) -> std::string {
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return a + (a.length() > 0 ? "\n" : "") + b;
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}
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);
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std::string str_text_queries =
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std::accumulate(
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text_queries_failed_to_route.begin(),
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text_queries_failed_to_route.end(),
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std::string {},
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[](const std::string& a, const std::string& b) -> std::string {
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return a + (a.length() > 0 ? "\n" : "") + b;
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}
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);
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std::string str_stmt_queries =
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std::accumulate(
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stmt_queries_failed_to_route.begin(),
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stmt_queries_failed_to_route.end(),
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std::string {},
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[](const std::string& a, const std::string& b) -> std::string {
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return a + (a.length() > 0 ? "\n" : "") + b;
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}
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);
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diag(
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"Test with rules:\n\n%s\n\nFailed to route the following text queries:\n\n%s\n",
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str_query_rules.c_str(),
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str_text_queries.c_str()
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);
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diag(
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"Test with rules:\n\n%s\n\nFailed to route the following stmt queries:\n\n%s\n",
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str_query_rules.c_str(),
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str_stmt_queries.c_str()
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);
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}
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ok(queries_properly_routed, "Queries for test were properly routed to the target hostgroups");
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}
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mysql_close(proxysql_admin);
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mysql_close(proxysql_stmt);
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|
mysql_close(proxysql_text);
|
|
|
|
return exit_status();
|
|
}
|