74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/**
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* @file max_connections.cpp Creates a number of connections > max_connections setting
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* - set global max_connections = 20
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* - create 20 connections, find on which iteration query start to fail
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* - when limit is found close last 2 connections
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* - in the loop: open two connections, expect first to succeed, second to fail, close them both and repeat
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* - close all connections
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*/
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#include "testconnections.h"
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#define CONNECTIONS 21
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#define ITER 25
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int main(int argc, char** argv)
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{
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MYSQL *mysql[CONNECTIONS];
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TestConnections * Test = new TestConnections(argc, argv);
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Test->stop_timeout();
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Test->repl->execute_query_all_nodes((char *) "set global max_connections = 20;");
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sleep(5);
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int limit = 0;
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for (int i = 0; i < CONNECTIONS - 1; i++)
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{
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Test->tprintf("Opening connection %d\n", i + 1);
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Test->set_timeout(30);
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mysql[i] = Test->maxscales->open_rwsplit_connection(0);
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if (execute_query_silent(mysql[i], "select 1"))
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{
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/** Monitors and such take up some connections so we'll set the
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* limit to the point where we know it'll start failing.*/
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Test->stop_timeout();
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limit = i;
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mysql_close(mysql[limit]);
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mysql_close(mysql[limit - 1]);
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Test->tprintf("Found limit, %d connections\n", limit);
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break;
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}
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Test->stop_timeout();
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sleep(1);
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}
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sleep(5);
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Test->tprintf("Opening two connections for %d times. One should succeed while the other should fail.\n",
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ITER);
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for (int i = 0; i < ITER; i++)
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{
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Test->set_timeout(30);
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mysql[limit - 1] = Test->maxscales->open_rwsplit_connection(0);
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mysql[limit] = Test->maxscales->open_rwsplit_connection(0);
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Test->add_result(execute_query_silent(mysql[limit - 1], "select 1"), "Query should succeed\n");
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Test->add_result(!execute_query_silent(mysql[limit], "select 1"), "Query should fail\n");
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mysql_close(mysql[limit - 1]);
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mysql_close(mysql[limit]);
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sleep(2);
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}
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Test->set_timeout(30);
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for (int i = 0; i < limit - 1; i++)
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{
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mysql_close(mysql[i]);
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}
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sleep(5);
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Test->stop_timeout();
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Test->check_maxscale_alive(0);
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Test->repl->execute_query_all_nodes((char *) "set global max_connections = 100;");
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int rval = Test->global_result;
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delete Test;
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return rval;
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}
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