+++ /dev/null
-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
- *
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
- *
- * Summary:
- *
- * Authors:
- * Brian Aker
- * Toru Maesaka
- */
-#include "config.h"
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <string.h>
-#include <getopt.h>
-#include <sys/time.h>
-
-#include <libmemcached/memcached.h>
-
-#include "client_options.h"
-#include "utilities.h"
-
-#define PROGRAM_NAME "memstat"
-#define PROGRAM_DESCRIPTION "Output the state of a memcached cluster."
-
-/* Prototypes */
-static void options_parse(int argc, char *argv[]);
-static void run_analyzer(memcached_st *memc, memcached_stat_st *memc_stat);
-static void print_analysis_report(memcached_st *memc,
- memcached_analysis_st *report);
-
-static int opt_verbose= 0;
-static int opt_displayflag= 0;
-static int opt_analyze= 0;
-static char *opt_servers= NULL;
-static char *stat_args= NULL;
-static char *analyze_mode= NULL;
-
-static struct option long_options[]=
-{
- {(OPTIONSTRING)"args", required_argument, NULL, OPT_STAT_ARGS},
- {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
- {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
- {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
- {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
- {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
- {(OPTIONSTRING)"flag", no_argument, &opt_displayflag, OPT_FLAG},
- {(OPTIONSTRING)"analyze", optional_argument, NULL, OPT_ANALYZE},
- {0, 0, 0, 0},
-};
-
-
-static memcached_return_t stat_printer(memcached_server_instance_st instance,
- const char *key, size_t key_length,
- const char *value, size_t value_length,
- void *context)
-{
- static memcached_server_instance_st last= NULL;
- (void)context;
-
- if (last != instance)
- {
- printf("Server: %s (%u)\n", memcached_server_name(instance),
- (uint32_t)memcached_server_port(instance));
- last= instance;
- }
-
- printf("\t %.*s: %.*s\n", (int)key_length, key, (int)value_length, value);
-
- return MEMCACHED_SUCCESS;
-}
-
-int main(int argc, char *argv[])
-{
- options_parse(argc, argv);
- initialize_sockets();
-
- if (! opt_servers)
- {
- char *temp;
-
- if ((temp= getenv("MEMCACHED_SERVERS")))
- opt_servers= strdup(temp);
- else
- {
- fprintf(stderr, "No Servers provided\n\n");
- help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, 0);
- exit(1);
- }
- }
-
- memcached_st *memc= memcached_create(NULL);
-
- memcached_server_st *servers= memcached_servers_parse(opt_servers);
- free(opt_servers);
-
- memcached_return_t rc= memcached_server_push(memc, servers);
- memcached_server_list_free(servers);
-
- if (rc != MEMCACHED_SUCCESS && rc != MEMCACHED_SOME_ERRORS)
- {
- printf("Failure to communicate with servers (%s)\n",
- memcached_strerror(memc, rc));
- exit(1);
- }
-
- if (opt_analyze)
- {
- memcached_stat_st *memc_stat;
-
- memc_stat= memcached_stat(memc, NULL, &rc);
-
- if (! memc_stat)
- exit(-1);
-
- run_analyzer(memc, memc_stat);
-
- memcached_stat_free(memc, memc_stat);
- }
- else
- {
- rc= memcached_stat_execute(memc, stat_args, stat_printer, NULL);
- }
-
- memcached_free(memc);
-
- return rc == MEMCACHED_SUCCESS ? EXIT_SUCCESS: EXIT_FAILURE;
-}
-
-static void run_analyzer(memcached_st *memc, memcached_stat_st *memc_stat)
-{
- memcached_return_t rc;
-
- if (analyze_mode == NULL)
- {
- memcached_analysis_st *report;
- report= memcached_analyze(memc, memc_stat, &rc);
- if (rc != MEMCACHED_SUCCESS || report == NULL)
- {
- printf("Failure to analyze servers (%s)\n",
- memcached_strerror(memc, rc));
- exit(1);
- }
- print_analysis_report(memc, report);
- free(report);
- }
- else if (strcmp(analyze_mode, "latency") == 0)
- {
- memcached_st **servers;
- uint32_t flags, server_count= memcached_server_count(memc);
- uint32_t num_of_tests= 32;
- const char *test_key= "libmemcached_test_key";
-
- servers= malloc(sizeof(memcached_st*) * server_count);
- if (!servers)
- {
- fprintf(stderr, "Failed to allocate memory\n");
- return;
- }
-
- for (uint32_t x= 0; x < server_count; x++)
- {
- memcached_server_instance_st instance=
- memcached_server_instance_by_position(memc, x);
-
- if ((servers[x]= memcached_create(NULL)) == NULL)
- {
- fprintf(stderr, "Failed to memcached_create()\n");
- if (x > 0)
- memcached_free(servers[0]);
- x--;
- for (; x > 0; x--)
- memcached_free(servers[x]);
-
- free(servers);
- return;
- }
- memcached_server_add(servers[x],
- memcached_server_name(instance),
- memcached_server_port(instance));
- }
-
- printf("Network Latency Test:\n\n");
- struct timeval start_time, end_time;
- uint32_t slowest_server= 0;
- long elapsed_time, slowest_time= 0;
-
- for (uint32_t x= 0; x < server_count; x++)
- {
- memcached_server_instance_st instance=
- memcached_server_instance_by_position(memc, x);
- gettimeofday(&start_time, NULL);
-
- for (uint32_t y= 0; y < num_of_tests; y++)
- {
- size_t vlen;
- char *val= memcached_get(servers[x], test_key, strlen(test_key),
- &vlen, &flags, &rc);
- if (rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_SUCCESS)
- break;
- free(val);
- }
- gettimeofday(&end_time, NULL);
-
- elapsed_time= (long) timedif(end_time, start_time);
- elapsed_time /= (long) num_of_tests;
-
- if (elapsed_time > slowest_time)
- {
- slowest_server= x;
- slowest_time= elapsed_time;
- }
-
- if (rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_SUCCESS)
- {
- printf("\t %s (%d) => failed to reach the server\n",
- memcached_server_name(instance),
- memcached_server_port(instance));
- }
- else
- {
- printf("\t %s (%d) => %ld.%ld seconds\n",
- memcached_server_name(instance),
- memcached_server_port(instance),
- elapsed_time / 1000, elapsed_time % 1000);
- }
- }
-
- if (server_count > 1 && slowest_time > 0)
- {
- memcached_server_instance_st slowest=
- memcached_server_instance_by_position(memc, slowest_server);
-
- printf("---\n");
- printf("Slowest Server: %s (%d) => %ld.%ld seconds\n",
- memcached_server_name(slowest),
- memcached_server_port(slowest),
- slowest_time / 1000, slowest_time % 1000);
- }
- printf("\n");
-
- for (uint32_t x= 0; x < server_count; x++)
- memcached_free(servers[x]);
-
- free(servers);
- free(analyze_mode);
- }
- else
- {
- fprintf(stderr, "Invalid Analyzer Option provided\n");
- free(analyze_mode);
- }
-}
-
-static void print_analysis_report(memcached_st *memc,
- memcached_analysis_st *report)
-
-{
- uint32_t server_count= memcached_server_count(memc);
- memcached_server_instance_st most_consumed_server= memcached_server_instance_by_position(memc, report->most_consumed_server);
- memcached_server_instance_st least_free_server= memcached_server_instance_by_position(memc, report->least_free_server);
- memcached_server_instance_st oldest_server= memcached_server_instance_by_position(memc, report->oldest_server);
-
- printf("Memcached Cluster Analysis Report\n\n");
-
- printf("\tNumber of Servers Analyzed : %u\n", server_count);
- printf("\tAverage Item Size (incl/overhead) : %u bytes\n",
- report->average_item_size);
-
- if (server_count == 1)
- {
- printf("\nFor a detailed report, you must supply multiple servers.\n");
- return;
- }
-
- printf("\n");
- printf("\tNode with most memory consumption : %s:%u (%llu bytes)\n",
- memcached_server_name(most_consumed_server),
- (uint32_t)memcached_server_port(most_consumed_server),
- (unsigned long long)report->most_used_bytes);
- printf("\tNode with least free space : %s:%u (%llu bytes remaining)\n",
- memcached_server_name(least_free_server),
- (uint32_t)memcached_server_port(least_free_server),
- (unsigned long long)report->least_remaining_bytes);
- printf("\tNode with longest uptime : %s:%u (%us)\n",
- memcached_server_name(oldest_server),
- (uint32_t)memcached_server_port(oldest_server),
- report->longest_uptime);
- printf("\tPool-wide Hit Ratio : %1.f%%\n", report->pool_hit_ratio);
- printf("\n");
-}
-
-static void options_parse(int argc, char *argv[])
-{
- memcached_programs_help_st help_options[]=
- {
- {0},
- };
-
- int option_index= 0;
- int option_rv;
-
- while (1)
- {
- option_rv= getopt_long(argc, argv, "Vhvds:a", long_options, &option_index);
- if (option_rv == -1) break;
- switch (option_rv)
- {
- case 0:
- break;
- case OPT_VERBOSE: /* --verbose or -v */
- opt_verbose = OPT_VERBOSE;
- break;
- case OPT_DEBUG: /* --debug or -d */
- opt_verbose = OPT_DEBUG;
- break;
- case OPT_VERSION: /* --version or -V */
- version_command(PROGRAM_NAME);
- break;
- case OPT_HELP: /* --help or -h */
- help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
- break;
- case OPT_SERVERS: /* --servers or -s */
- opt_servers= strdup(optarg);
- break;
- case OPT_STAT_ARGS:
- stat_args= strdup(optarg);
- break;
- case OPT_ANALYZE: /* --analyze or -a */
- opt_analyze= OPT_ANALYZE;
- analyze_mode= (optarg) ? strdup(optarg) : NULL;
- break;
- case '?':
- /* getopt_long already printed an error message. */
- exit(1);
- default:
- abort();
- }
- }
-}
projects / awesomized / libmemcached / blobdiff