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diff --git a/plugins/check_mysql.c b/plugins/check_mysql.c
index 16a1f1335cf8f68f23575e21beebe5bbf679b357..ce190621d60f507cbcccf59eb39490ba6b721639 100644 (file)
--- a/plugins/check_mysql.c
+++ b/plugins/check_mysql.c
-/******************************************************************************
-*
-* CHECK_MYSQL.C
-*
-* Program: Mysql plugin for Nagios
+/*****************************************************************************
+*
+* Nagios check_mysql plugin
+*
* License: GPL
* Copyright (c) 1999 Didi Rieder (adrieder@sbox.tu-graz.ac.at)
-* portions (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+* Copyright (c) 1999-2009 Nagios Plugins Development Team
*
-* $Id$
-*
* Description:
-*
-* This plugin is for testing a mysql server.
-******************************************************************************/
+*
+* This file contains the check_mysql plugin
+*
+* This program tests connections to a mysql server
+*
+*
+* 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 3 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, see <http://www.gnu.org/licenses/>.
+*
+*
+*****************************************************************************/
const char *progname = "check_mysql";
-const char *revision = "$Revision$";
-const char *copyright = "1999-2002";
+const char *copyright = "1999-2007";
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>
-
-void
-print_usage (void)
-{
- printf (_("\
-Usage: %s [-d database] [-H host] [-P port] [-u user] [-p password]\n"),
- progname);
- printf (_(UT_HLP_VRS), progname, progname);
-}
-
-void
-print_help (void)
-{
- char *myport;
- asprintf (&myport, "%d", MYSQL_PORT);
-
- print_revision (progname, revision);
-
- printf (_(COPYRIGHT), copyright, email);
- printf (_("This program tests connections to a mysql server\n"));
+#include <mysql.h>
+#include <errmsg.h>
- print_usage ();
-
- printf (_(UT_HELP_VRSN));
-
- printf (_(UT_HOST_PORT), 'P', myport);
-
- printf (_("\
- -d, --database=STRING\n\
- Check database with indicated name\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"));
-
- printf (_("\n\
-There are no required arguments. By default, the local database with\n\
-a server listening on MySQL standard port %d will be checked\n"), MYSQL_PORT);
-
- printf (_(UT_SUPPORT));
-}
-\f
-char *db_user = "";
-char *db_host = "";
-char *db_pass = "";
-char *db = "";
+char *db_user = NULL;
+char *db_host = NULL;
+char *db_socket = 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 validate_arguments (void);
+void print_help (void);
+void print_usage (void);
int
main (int argc, char **argv)
{
MYSQL mysql;
- char result[1024];
+ MYSQL_RES *res;
+ MYSQL_ROW row;
+
+ /* should be status */
+
+ char *result = NULL;
+ char *error = NULL;
+ char slaveresult[SLAVERESULTSIZE];
- if (process_arguments (argc, argv) != OK)
- usage (_("Invalid command arguments supplied\n"));
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ /* Parse extra opts if any */
+ argv=np_extra_opts (&argc, argv, progname);
+
+ 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,db_socket,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;
+ }
+ }
- /* error checking once more */
- if (mysql_error (&mysql)) {
+ 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");
+ }
- if (mysql_errno (&mysql) == CR_SERVER_GONE_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_CRITICAL;
+ snprintf (slaveresult, SLAVERESULTSIZE, "Slave IO: %s Slave SQL: %s Seconds Behind Master: %s", row[slave_io_field], row[slave_sql_field], seconds_behind_field!=-1?row[seconds_behind_field]:"Unknown");
+ 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);
+ }
- }
- else if (mysql_errno (&mysql) == CR_SERVER_LOST) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_CRITICAL;
+ 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]);
+ }
+ }
- }
- else if (mysql_errno (&mysql) == CR_UNKNOWN_ERROR) {
- printf ("%s\n", mysql_error (&mysql));
- return STATE_UNKNOWN;
+ if ((seconds_behind_field != -1) && (strcmp (row[seconds_behind_field], "NULL") != 0)) {
+ double value = atof(row[seconds_behind_field]);
+ int status;
+
+ status = get_status(value, my_threshold);
+
+ 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;
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"hostname", required_argument, 0, 'H'},
+ {"socket", required_argument, 0, 's'},
{"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'},
return ERROR;
while (1) {
- c = getopt_long (argc, argv, "hVP:p:u:d:H:", long_options, &option_index);
+ c = getopt_long (argc, argv, "hvVSP:p:u:d:H:s:c:w:", longopts, &option);
if (c == -1 || c == EOF)
break;
db_host = optarg;
}
else {
- usage (_("Invalid host name\n"));
+ usage2 (_("Invalid hostname/address"), optarg);
}
break;
- case 'd': /* hostname */
+ case 's': /* socket */
+ db_socket = optarg;
+ break;
+ case 'd': /* database */
db = optarg;
break;
case 'u': /* username */
db_user = optarg;
break;
case 'p': /* authentication information: password */
- db_pass = optarg;
+ db_pass = strdup(optarg);
+
+ /* Delete the password from process list */
+ while (*optarg != '\0') {
+ *optarg = 'X';
+ optarg++;
+ }
break;
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 (progname, revision);
+ print_revision (progname, NP_VERSION);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
+ case 'v':
+ verbose++;
+ break;
case '?': /* help */
- usage (_("Invalid argument\n"));
+ usage5 ();
}
}
c = optind;
+ set_thresholds(&my_threshold, warning, critical);
+
while ( argc > c ) {
- if (strlen(db_host) == 0)
+ if (db_host == NULL)
if (is_host (argv[c])) {
db_host = argv[c++];
}
else {
- usage ("Invalid host name");
+ usage2 (_("Invalid hostname/address"), argv[c]);
}
- else if (strlen(db_user) == 0)
+ else if (db_user == NULL)
db_user = argv[c++];
- else if (strlen(db_pass) == 0)
+ else if (db_pass == NULL)
db_pass = argv[c++];
- else if (strlen(db) == 0)
+ else if (db == NULL)
db = argv[c++];
else if (is_intnonneg (argv[c]))
db_port = atoi (argv[c++]);
}
-
-
-
int
validate_arguments (void)
{
+ if (db_user == NULL)
+ db_user = strdup("");
+
+ if (db_host == NULL)
+ db_host = strdup("");
+
+ if (db == NULL)
+ db = strdup("");
+
return OK;
}
+
+
+void
+print_help (void)
+{
+ char *myport;
+ asprintf (&myport, "%d", MYSQL_PORT);
+
+ print_revision (progname, NP_VERSION);
+
+ 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_EXTRA_OPTS);
+
+ printf (UT_HOST_PORT, 'P', myport);
+ printf (" %s\n", "-s, --socket=STRING");
+ printf (" %s\n", _("Use the specified socket (has no effect if -H is used)"));
+
+ 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 could 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 than INTEGER seconds"));
+ printf (" %s\n", _("behind master"));
+ printf (" %s\n", "-c, --critical");
+ printf (" %s\n", _("Exit with CRITICAL status if slave server is more then INTEGER seconds"));
+ printf (" %s\n", _("behind master"));
+
+ printf ("\n");
+ printf (" %s\n", _("There are no required arguments. By default, the local database is checked"));
+ printf (" %s\n", _("using the default unix socket. You can force TCP on localhost by using an"));
+ printf (" %s\n", _("IP address or FQDN ('localhost' will use the socket as well)."));
+
+#ifdef NP_EXTRA_OPTS
+ printf ("\n");
+ printf ("%s\n", _("Notes:"));
+ printf (UT_EXTRA_OPTS_NOTES);
+ printf ("\n");
+ printf (" %s\n", _("You must specify -p with an empty string to force an empty password,"));
+ printf (" %s\n", _("overriding any my.cnf settings."));
+#endif
+
+ printf (UT_SUPPORT);
+}
+
+
+void
+print_usage (void)
+{
+ printf (_("Usage:"));
+ printf (" %s [-d database] [-H host] [-P port] [-s socket]\n",progname);
+ printf (" [-u user] [-p password] [-S]\n");
+}