diff --git a/plugins/check_mysql.c b/plugins/check_mysql.c
index 50836f91109f4ec9f0b51be0e81eb04ac3ec89ef..e10211faf3396440f6fa7756410f16be4f9825e1 100644 (file)
--- a/plugins/check_mysql.c
+++ b/plugins/check_mysql.c
/******************************************************************************
*
-* CHECK_MYSQL.C
+* Nagios check_mysql plugin
*
-* Program: Mysql plugin for Nagios
* License: GPL
-* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
-* portions (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
-*
-* $Id$
+* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
+* Copyright (c) 1999-2006 nagios-plugins team
+* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+*
+* Last Modified: $Date$
*
* Description:
*
-* This plugin is for testing a mysql server.
+* This file contains the check_mysql plugin
+*
+* This program tests connections to a mysql server
+*
+*
+* License Information:
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+* $Id$
+*
******************************************************************************/
-#define PROGNAME "check_mysql"
+const char *progname = "check_mysql";
+const char *revision = "$Revision$";
+const char *copyright = "1999-2006";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+
+#define SLAVERESULTSIZE 70
#include "common.h"
#include "utils.h"
+#include "utils_base.h"
+#include "netutils.h"
-#include <mysql/mysql.h>
-#include <mysql/errmsg.h>
+#include <mysql.h>
+#include <errmsg.h>
char *db_user = NULL;
char *db_host = NULL;
char *db_pass = NULL;
char *db = NULL;
unsigned int db_port = MYSQL_PORT;
+int check_slave = 0, warn_sec = 0, crit_sec = 0;
+int verbose = 0;
+
+thresholds *my_threshold = NULL;
int process_arguments (int, char **);
-int call_getopt (int, char **);
int validate_arguments (void);
-int check_disk (int usp, int free_disk);
void print_help (void);
void print_usage (void);
{
MYSQL mysql;
- char result[1024];
-
- if (process_arguments (argc, argv) != OK)
- usage ("Invalid command arguments supplied\n");
+ MYSQL_RES *res;
+ MYSQL_ROW row;
+
+ /* should be status */
+
+ char *result = NULL;
+ char *error = NULL;
+ char slaveresult[SLAVERESULTSIZE];
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ if (process_arguments (argc, argv) == ERROR)
+ usage4 (_("Could not parse arguments"));
/* initialize mysql */
mysql_init (&mysql);
+ mysql_options(&mysql,MYSQL_READ_DEFAULT_GROUP,"client");
+
/* establish a connection to the server and error checking */
- if (!mysql_real_connect
- (&mysql, db_host, db_user, db_pass, db, db_port, NULL, 0)) {
+ if (!mysql_real_connect(&mysql,db_host,db_user,db_pass,db,db_port,NULL,0)) {
+ if (mysql_errno (&mysql) == CR_UNKNOWN_HOST)
+ die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_VERSION_ERROR)
+ die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY)
+ die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR)
+ die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_SOCKET_CREATE_ERROR)
+ die (STATE_WARNING, "%s\n", mysql_error (&mysql));
+ else
+ die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+ }
- if (mysql_errno (&mysql) == CR_UNKNOWN_HOST) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_WARNING;
+ /* get the server stats */
+ result = strdup (mysql_stat (&mysql));
- }
- else if (mysql_errno (&mysql) == CR_VERSION_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_WARNING;
+ /* error checking once more */
+ if (mysql_error (&mysql)) {
+ if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR)
+ die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_SERVER_LOST)
+ die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+ else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR)
+ die (STATE_CRITICAL, "%s\n", mysql_error (&mysql));
+ }
+ if(check_slave) {
+ /* check the slave status */
+ if (mysql_query (&mysql, "show slave status") != 0) {
+ error = strdup(mysql_error(&mysql));
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, _("slave query error: %s\n"), error);
}
- else if (mysql_errno (&mysql) == CR_OUT_OF_MEMORY) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_WARNING;
+ /* store the result */
+ if ( (res = mysql_store_result (&mysql)) == NULL) {
+ error = strdup(mysql_error(&mysql));
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, _("slave store_result error: %s\n"), error);
}
- else if (mysql_errno (&mysql) == CR_IPSOCK_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_WARNING;
+ /* Check there is some data */
+ if (mysql_num_rows(res) == 0) {
+ mysql_close(&mysql);
+ die (STATE_WARNING, "%s\n", _("No slaves defined"));
}
- else if (mysql_errno (&mysql) == CR_SOCKET_CREATE_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_WARNING;
- }
- else {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_CRITICAL;
+ /* fetch the first row */
+ if ( (row = mysql_fetch_row (res)) == NULL) {
+ error = strdup(mysql_error(&mysql));
+ mysql_free_result (res);
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, _("slave fetch row error: %s\n"), error);
}
- }
+ if (mysql_field_count (&mysql) == 12) {
+ /* mysql 3.23.x */
+ snprintf (slaveresult, SLAVERESULTSIZE, _("Slave running: %s"), row[6]);
+ if (strcmp (row[6], "Yes") != 0) {
+ mysql_free_result (res);
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, "%s\n", slaveresult);
+ }
- /* get the server stats */
- sprintf (result, mysql_stat (&mysql));
+ } else {
+ /* mysql 4.x.x */
+ int slave_io_field = -1 , slave_sql_field = -1, seconds_behind_field = -1, i, num_fields;
+ MYSQL_FIELD* fields;
+
+ num_fields = mysql_num_fields(res);
+ fields = mysql_fetch_fields(res);
+ for(i = 0; i < num_fields; i++) {
+ if (strcmp(fields[i].name, "Slave_IO_Running") == 0) {
+ slave_io_field = i;
+ continue;
+ }
+ if (strcmp(fields[i].name, "Slave_SQL_Running") == 0) {
+ slave_sql_field = i;
+ continue;
+ }
+ if (strcmp(fields[i].name, "Seconds_Behind_Master") == 0) {
+ seconds_behind_field = i;
+ continue;
+ }
+ }
+ if ((slave_io_field < 0) || (slave_sql_field < 0) || (num_fields == 0)) {
+ mysql_free_result (res);
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, "Slave status unavailable\n");
+ }
+
+ snprintf (slaveresult, SLAVERESULTSIZE, "Slave IO: %s Slave SQL: %s Seconds Behind Master: %s", row[slave_io_field], row[slave_sql_field], row[seconds_behind_field]);
+ if (strcmp (row[slave_io_field], "Yes") != 0 || strcmp (row[slave_sql_field], "Yes") != 0) {
+ mysql_free_result (res);
+ mysql_close (&mysql);
+ die (STATE_CRITICAL, "%s\n", slaveresult);
+ }
- /* error checking once more */
- if (mysql_error (&mysql)) {
+ if (verbose >=3) {
+ if (seconds_behind_field == -1) {
+ printf("seconds_behind_field not found\n");
+ } else {
+ printf ("seconds_behind_field(index %d)=%s\n", seconds_behind_field, row[seconds_behind_field]);
+ }
+ }
- if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_CRITICAL;
+ if ((seconds_behind_field != -1) && (strcmp (row[seconds_behind_field], "NULL") != 0)) {
+ double value = atof(row[seconds_behind_field]);
+ int status;
- }
- else if (mysql_errno (&mysql) == CR_SERVER_LOST) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_CRITICAL;
+ status = get_status(value, my_threshold);
- }
- else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_UNKNOWN;
+ if (status == STATE_WARNING) {
+ printf("SLOW_SLAVE %s: %s\n", _("WARNING"), slaveresult);
+ exit(STATE_WARNING);
+ } else if (status == STATE_CRITICAL) {
+ printf("SLOW_SLAVE %s: %s\n", _("CRITICAL"), slaveresult);
+ exit(STATE_CRITICAL);
+ }
+ }
}
+ /* free the result */
+ mysql_free_result (res);
}
/* close the connection */
mysql_close (&mysql);
/* print out the result of stats */
- printf ("%s\n", result);
+ if (check_slave) {
+ printf ("%s %s\n", result, slaveresult);
+ } else {
+ printf ("%s\n", result);
+ }
return STATE_OK;
}
-
-
-
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
int c;
+ char *warning = NULL;
+ char *critical = NULL;
- if (argc < 1)
- return ERROR;
-
- c = 0;
- while ((c += (call_getopt (argc - c, &argv[c]))) < argc) {
-
- if (is_option (argv[c]))
- continue;
-
- if (db_host == NULL)
- if (is_host (argv[c])) {
- db_host = argv[c];
- }
- else {
- usage ("Invalid host name");
- }
- else if (db_user == NULL)
- db_user = argv[c];
- else if (db_pass == NULL)
- db_pass = argv[c];
- else if (db == NULL)
- db = argv[c];
- else if (is_intnonneg (argv[c]))
- db_port = atoi (argv[c]);
- }
-
- if (db_host == NULL)
- db_host = strscpy (db_host, "127.0.0.1");
-
- return validate_arguments ();
-}
-
-
-
-
-
-
-int
-call_getopt (int argc, char **argv)
-{
- int c, i = 0;
-
-#ifdef HAVE_GETOPT_H
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
{"database", required_argument, 0, 'd'},
{"username", required_argument, 0, 'u'},
{"password", required_argument, 0, 'p'},
{"port", required_argument, 0, 'P'},
+ {"critical", required_argument, 0, 'c'},
+ {"warning", required_argument, 0, 'w'},
+ {"check-slave", no_argument, 0, 'S'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
-#endif
- while (1) {
-#ifdef HAVE_GETOPT_H
- c =
- getopt_long (argc, argv, "+hVP:p:u:d:H:", long_options, &option_index);
-#else
- c = getopt (argc, argv, "+?hVP:p:u:d:H:");
-#endif
+ if (argc < 1)
+ return ERROR;
- i++;
+ while (1) {
+ c = getopt_long (argc, argv, "hvVSP:p:u:d:H:c:w:", longopts, &option);
- if (c == -1 || c == EOF || c == 1)
+ if (c == -1 || c == EOF)
break;
- switch (c) {
- case 'P':
- case 'p':
- case 'u':
- case 'd':
- case 'H':
- i++;
- }
-
switch (c) {
case 'H': /* hostname */
if (is_host (optarg)) {
db_host = optarg;
}
else {
- usage ("Invalid host name\n");
+ usage2 (_("Invalid hostname/address"), optarg);
}
break;
case 'd': /* hostname */
case 'P': /* critical time threshold */
db_port = atoi (optarg);
break;
+ case 'S':
+ check_slave = 1; /* check-slave */
+ break;
+ case 'w':
+ warning = optarg;
+ break;
+ case 'c':
+ critical = optarg;
+ break;
case 'V': /* version */
- print_revision (my_basename (argv[0]), "$Revision$");
+ print_revision (progname, revision);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
+ case 'v':
+ verbose++;
+ break;
case '?': /* help */
- usage ("Invalid argument\n");
+ usage2 (_("Unknown argument"), optarg);
}
}
- return i;
-}
+ c = optind;
+
+ set_thresholds(&my_threshold, warning, critical);
+
+ while ( argc > c ) {
+ if (strlen(db_host) == 0)
+ if (is_host (argv[c])) {
+ db_host = argv[c++];
+ }
+ else {
+ usage2 (_("Invalid hostname/address"), optarg);
+ }
+ else if (strlen(db_user) == 0)
+ db_user = argv[c++];
+ else if (strlen(db_pass) == 0)
+ db_pass = argv[c++];
+ else if (strlen(db) == 0)
+ db = argv[c++];
+ else if (is_intnonneg (argv[c]))
+ db_port = atoi (argv[c++]);
+ else
+ break;
+ }
+ return validate_arguments ();
+}
int
validate_arguments (void)
{
- return OK;
-}
+ if (db_user == NULL)
+ db_user = strdup("");
+
+ if (db_host == NULL)
+ db_host = strdup("");
+ if (db_pass == NULL)
+ db_pass == strdup("");
+ if (db == NULL)
+ db = strdup("");
+ return OK;
+}
void
print_help (void)
{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 2000 Didi Rieder/Karl DeBisschop\n\n"
- "This plugin is for testing a mysql server.\n");
- print_usage ();
- printf
- ("\nThere are no required arguments. By default, the local database with\n"
- "a server listening on MySQL standard port %d will be checked\n\n"
- "Options:\n"
- " -d, --database=STRING\n"
- " Check database with indicated name\n"
- " -H, --hostname=STRING or IPADDRESS\n"
- " Check server on the indicated host\n"
- " -P, --port=INTEGER\n"
- " Make connection on the indicated port\n"
- " -u, --username=STRING\n"
- " Connect using the indicated username\n"
- " -p, --password=STRING\n"
- " Use the indicated password to authenticate the connection\n"
- " ==> IMPORTANT: THIS FORM OF AUTHENTICATION IS NOT SECURE!!! <==\n"
- " Your clear-text password will be visible as a process table entry\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n" " Print version information\n\n", MYSQL_PORT);
- support ();
-}
+ char *myport;
+ asprintf (&myport, "%d", MYSQL_PORT);
+
+ print_revision (progname, revision);
+ printf (_(COPYRIGHT), copyright, email);
+ printf ("%s\n", _("This program tests connections to a mysql server"));
+ printf ("\n\n");
+
+ print_usage ();
+
+ printf (_(UT_HELP_VRSN));
+
+ printf (_(UT_HOST_PORT), 'P', myport);
+
+ printf (" %s\n", "-d, --database=STRING");
+ printf (" %s\n", _("Check database with indicated name"));
+ printf (" %s\n", "-u, --username=STRING");
+ printf (" %s\n", _("Connect using the indicated username"));
+ printf (" %s\n", "-p, --password=STRING");
+ printf (" %s\n", _("Use the indicated password to authenticate the connection"));
+ printf (" %s\n", _("==> IMPORTANT: THIS FORM OF AUTHENTICATION IS NOT SECURE!!! <=="));
+ printf (" %s\n", _("Your clear-text password will be visible as a process table entry"));
+ printf (" %s\n", "-S, --check-slave");
+ printf (" %s\n", _("Check if the slave thread is running properly."));
+ printf (" %s\n", "-w, --warning");
+ printf (" %s\n", _("Exit with WARNING status if slave server is more then INTEGER seconds behind master"));
+ printf (" %s\n", "-c, --critical");
+ printf (" %s\n", _("Exit with CRITICAL status if slave server is more then INTEGER seconds behind master"));
+ printf (" %s\n", _("There are no required arguments. By default, the local database with"));
+ printf (_("a server listening on MySQL standard port %d will be checked\n"), MYSQL_PORT);
+
+ printf (_(UT_SUPPORT));
+}
void
print_usage (void)
{
- printf
- ("Usage: %s [-d database] [-H host] [-P port] [-u user] [-p password]\n"
- " %s --help\n"
- " %s --version\n", PROGNAME, PROGNAME, PROGNAME);
+ printf (_("Usage:"));
+ printf ("%s [-d database] [-H host] [-P port] [-u user] [-p password] [-S]\n",progname);
}