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229 lines
6.5 KiB
229 lines
6.5 KiB
/**
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* @file reg_test_3847_admin_lock-t.cpp
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* @brief This is a regression test for the deadlock described in issue #3847.
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*/
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#include <cstring>
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#include <vector>
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#include <string>
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#include <thread>
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#include <stdio.h>
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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 "proxysql_utils.h"
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#include "tap.h"
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#include "command_line.h"
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#include "utils.h"
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using std::string;
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using std::vector;
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int main(int argc, char** argv) {
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CommandLine cl;
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const char* WORKSPACE = getenv("WORKSPACE");
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if (cl.getEnv() || WORKSPACE == nullptr) {
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diag("Failed to get the required environmental variables.");
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return EXIT_FAILURE;
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}
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plan(3);
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bool stop = false;
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int q_load_res = -1;
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int q_globals_res = -1;
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MYSQL* p_proxy_admin = mysql_init(NULL);
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if (!mysql_real_connect(p_proxy_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(p_proxy_admin));
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return EXIT_FAILURE;
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}
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const string sec_cfg_file = string { cl.workdir } + "reg_test_3847_node_datadir/proxysql_sec.cfg";
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const string sec_log_file = string { cl.workdir } + "reg_test_3847_node_datadir/proxysql_sec.log";
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const string sec_proxy_cmd {
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string { "ASAN_OPTIONS=abort_on_error=0:halt_on_error=0:fast_unwind_on_fatal=1:detect_leaks=0 " } +
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string { WORKSPACE } + "/src/proxysql -M -c \"" + sec_cfg_file + "\" > " + sec_log_file + " 2>&1"
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};
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int launch_res = -1;
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std::thread launch_sec_proxy = std::thread([&WORKSPACE,&cl] (int& err_code) -> void {
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to_opts_t wexecvp_opts {};
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wexecvp_opts.poll_to_us = 100*1000;
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wexecvp_opts.waitpid_delay_us = 500*1000;
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// Stop launched process after 20s
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wexecvp_opts.timeout_us = 20000 * 1000;
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// Send sigkill 3s after timeout
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wexecvp_opts.sigkill_to_us = 3000 * 1000;
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const string sec_cfg_file = string { cl.workdir } + "reg_test_3847_node_datadir/proxysql_sec.cfg";
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const string sec_log_file = string { cl.workdir } + "reg_test_3847_node_datadir/proxysql_sec.log";
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const string proxysql_path { string { WORKSPACE } + "/src/proxysql" };
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const vector<const char*> proxy_args { "-f", "-M", "-c", sec_cfg_file.c_str() };
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string s_stdout {};
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string s_stderr {};
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int w_res = wexecvp(proxysql_path, proxy_args, wexecvp_opts, s_stdout, s_stderr);
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if (w_res != EXIT_SUCCESS) {
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diag("'wexecvp' failed with error: %d", w_res);
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}
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err_code = w_res;
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// Write process output to log file
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try {
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std::ofstream os_logfile { sec_log_file, std::ios::out };
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os_logfile << s_stderr;
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} catch (const std::exception& ex) {
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fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, ex.what());
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}
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}, std::ref(launch_res));
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// Check that the second ProxySQL is up and responsive
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conn_opts_t conn_opts { "127.0.0.1", "radmin", "radmin", 26081 };
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// Wait at max the child process timeout plus 5 seconds
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MYSQL* s_proxy_admin = wait_for_proxysql(conn_opts, 25);
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if (s_proxy_admin == nullptr) {
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fprintf(stderr, "Error: %s\n", "Waiting for ProxySQL replica timedout");
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launch_sec_proxy.detach();
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return EXIT_FAILURE;
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}
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// Configure Cluster access for primary ProxySQL
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MYSQL_QUERY(p_proxy_admin, "SET admin-admin_credentials='admin:admin;radmin:radmin;cluster1:secret1pass'");
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MYSQL_QUERY(p_proxy_admin, "SET admin-cluster_username='cluster1'");
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MYSQL_QUERY(p_proxy_admin, "SET admin-cluster_password='secret1pass'");
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MYSQL_QUERY(p_proxy_admin, "LOAD ADMIN VARIABLES TO RUNTIME");
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// Configure secondary node
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MYSQL_QUERY(s_proxy_admin, "SET admin-cluster_check_interval_ms=10");
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MYSQL_QUERY(s_proxy_admin, "SET admin-cluster_mysql_variables_diffs_before_sync=1");
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MYSQL_QUERY(s_proxy_admin, "LOAD ADMIN VARIABLES TO RUNTIME");
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std::thread th_load_mysql_vars([&cl] (bool& stop, int& load_res) -> void {
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MYSQL* admin = mysql_init(NULL);
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if (!mysql_real_connect(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(admin));
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load_res = mysql_errno(admin);
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}
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int default_query_timeout = 36000000;
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while (stop == false) {
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string set_query { "SET mysql-default_query_timeout=" + std::to_string(default_query_timeout) };
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mysql_query(admin, set_query.c_str());
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int my_res = mysql_query(admin, "LOAD MYSQL VARIABLES TO RUNTIME");
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if (my_res) {
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load_res = mysql_errno(admin);
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break;
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} else {
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usleep(1000 * 10 * 2);
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}
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if (default_query_timeout > 36000000) {
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default_query_timeout = 36000000;
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} else {
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default_query_timeout += 1;
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}
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}
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load_res = 0;
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mysql_close(admin);
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}, std::ref(stop), std::ref(q_load_res));
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std::thread th_query_globals([&cl] (bool& stop, int& save_res) -> void {
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MYSQL* admin = mysql_init(NULL);
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if (!mysql_real_connect(admin, cl.host, cl.admin_username, cl.admin_password, NULL, 26081, NULL, 0)) {
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fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(admin));
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save_res = mysql_errno(admin);
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}
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while (stop == false) {
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int my_res = mysql_query(admin, "SELECT COUNT(*) FROM runtime_global_variables");
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if (my_res) {
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save_res = mysql_errno(admin);
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break;
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} else {
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mysql_free_result(mysql_store_result(admin));
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}
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}
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save_res = 0;
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mysql_close(admin);
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}, std::ref(stop), std::ref(q_globals_res));
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uint32_t timeout = 10;
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uint32_t wait = 0;
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while (wait < timeout) {
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if (q_globals_res != -1) {
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fprintf(stderr, "'th_admin_save' failed with error: %d\n", q_globals_res);
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break;
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}
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if (q_load_res != -1) {
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fprintf(stderr, "'th_admin_load' failed with error: %d\n", q_load_res);
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break;
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}
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sleep(1);
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wait += 1;
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}
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{
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diag("Shutting down worker threads");
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int timeout = 2;
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int waited = 0;
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stop = true;
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if ((q_globals_res == -1 || q_load_res == -1) && waited < timeout) {
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sleep(1);
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waited += 1;
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}
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}
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ok(q_load_res == 0, "'th_load_mysql_vars' thread didn't deadlock: %d", q_load_res);
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ok(q_globals_res == 0, "'th_query_globals' thread didn't deadlock: %d", q_globals_res);
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th_load_mysql_vars.detach();
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th_query_globals.detach();
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{
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// NOTE: Can lock for a max of 20s (child process timeout)
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diag("Shutting down ProxySQL replica");
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mysql_query(s_proxy_admin, "PROXYSQL SHUTDOWN SLOW");
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int timeout = 3;
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int waited = 0;
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// Wait for shutdown
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if (launch_res == -1 && waited < timeout) {
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sleep(1);
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waited += 1;
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}
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ok(launch_res == 0, "Replica was properly shutdown and no deadlock took place");
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}
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launch_sec_proxy.join();
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mysql_close(p_proxy_admin);
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mysql_close(s_proxy_admin);
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return exit_status();
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}
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