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-rw-r--r--plugins/check_dbi.c127
1 files changed, 90 insertions, 37 deletions
diff --git a/plugins/check_dbi.c b/plugins/check_dbi.c
index f0099440..4a0a4d69 100644
--- a/plugins/check_dbi.c
+++ b/plugins/check_dbi.c
@@ -38,7 +38,13 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net";
#include "netutils.h"
+/* required for NAN */
+#ifndef _ISOC99_SOURCE
+#define _ISOC99_SOURCE
+#endif
+
#include <assert.h>
+#include <math.h>
#include <dbi/dbi.h>
@@ -47,6 +53,7 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net";
typedef enum {
METRIC_CONN_TIME,
METRIC_QUERY_RESULT,
+ METRIC_QUERY_TIME,
} np_dbi_metric_t;
typedef struct {
@@ -224,24 +231,38 @@ main (int argc, char **argv)
if (metric == METRIC_QUERY_RESULT)
status = get_status (query_val, dbi_thresholds);
+ else if (metric == METRIC_QUERY_TIME)
+ status = get_status (query_time, dbi_thresholds);
}
if (verbose)
printf("Closing connection\n");
dbi_conn_close (conn);
+ /* In case of METRIC_QUERY_RESULT, isnan(query_val) indicates an error
+ * which should have been reported and handled (abort) before */
+ assert ((metric != METRIC_QUERY_RESULT) || (! isnan (query_val)));
+
printf ("%s - connection time: %fs", state_text (status), conn_time);
- if (np_dbi_query)
- printf (", '%s' returned %f in %fs", np_dbi_query, query_val, query_time);
+ if (np_dbi_query) {
+ if (isnan (query_val))
+ printf (", '%s' query execution time: %fs", np_dbi_query, query_time);
+ else
+ printf (", '%s' returned %f in %fs", np_dbi_query, query_val, query_time);
+ }
printf (" | conntime=%fs;%s;%s;0;", conn_time,
((metric == METRIC_CONN_TIME) && warning_range) ? warning_range : "",
((metric == METRIC_CONN_TIME) && critical_range) ? critical_range : "");
- if (np_dbi_query)
- printf (" query=%f;%s;%s;; querytime=%fs;;;0;", query_val,
- ((metric == METRIC_QUERY_RESULT) && warning_range) ? warning_range : "",
- ((metric == METRIC_QUERY_RESULT) && critical_range) ? critical_range : "",
- query_time);
+ if (np_dbi_query) {
+ if (! isnan (query_val))
+ printf (" query=%f;%s;%s;;", query_val,
+ ((metric == METRIC_QUERY_RESULT) && warning_range) ? warning_range : "",
+ ((metric == METRIC_QUERY_RESULT) && critical_range) ? critical_range : "");
+ printf (" querytime=%fs;%s;%s;0;", query_time,
+ ((metric == METRIC_QUERY_TIME) && warning_range) ? warning_range : "",
+ ((metric == METRIC_QUERY_TIME) && critical_range) ? critical_range : "");
+ }
printf ("\n");
return status;
}
@@ -292,6 +313,8 @@ process_arguments (int argc, char **argv)
metric = METRIC_CONN_TIME;
else if (! strcasecmp (optarg, "QUERY_RESULT"))
metric = METRIC_QUERY_RESULT;
+ else if (! strcasecmp (optarg, "QUERY_TIME"))
+ metric = METRIC_QUERY_TIME;
else
usage2 (_("Invalid metric"), optarg);
break;
@@ -364,11 +387,13 @@ validate_arguments ()
if (! np_dbi_driver)
usage ("Must specify a DBI driver");
- if ((metric == METRIC_QUERY_RESULT) && (! np_dbi_query))
+ if (((metric == METRIC_QUERY_RESULT) || (metric == METRIC_QUERY_TIME))
+ && (! np_dbi_query))
usage ("Must specify a query to execute (metric == QUERY_RESULT)");
if ((metric != METRIC_CONN_TIME)
- && (metric != METRIC_QUERY_RESULT))
+ && (metric != METRIC_QUERY_RESULT)
+ && (metric != METRIC_QUERY_TIME))
usage ("Invalid metric specified");
return OK;
@@ -410,6 +435,8 @@ print_help (void)
printf (" %s\n", _("Metric to check thresholds against. Available metrics:"));
printf (" CONN_TIME - %s\n", _("time used for setting up the database connection"));
printf (" QUERY_RESULT - %s\n", _("result (first column of first row) of the query"));
+ printf (" QUERY_TIME - %s\n", _("time used to execute the query"));
+ printf (" %s\n", _("(ignore the query result)"));
printf ("\n");
printf (UT_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
@@ -441,10 +468,16 @@ print_usage (void)
printf (" [-H <host>] [-c <critical range>] [-w <warning range>] [-m <metric>]\n");
}
+#define CHECK_IGNORE_ERROR(s) \
+ do { \
+ if (metric != METRIC_QUERY_RESULT) \
+ return (s); \
+ } while (0)
+
double
get_field (dbi_conn conn, dbi_result res, unsigned short *field_type)
{
- double val = 0.0;
+ double val = NAN;
if (*field_type == DBI_TYPE_INTEGER) {
val = (double)dbi_result_get_longlong_idx (res, 1);
@@ -458,9 +491,10 @@ get_field (dbi_conn conn, dbi_result res, unsigned short *field_type)
val_str = dbi_result_get_string_idx (res, 1);
if ((! val_str) || (strcmp (val_str, "ERROR") == 0)) {
+ CHECK_IGNORE_ERROR (NAN);
np_dbi_print_error (conn, "CRITICAL - failed to fetch string value");
*field_type = DBI_TYPE_ERROR;
- return 0.0;
+ return NAN;
}
if (verbose > 2)
@@ -468,9 +502,10 @@ get_field (dbi_conn conn, dbi_result res, unsigned short *field_type)
val = strtod (val_str, &endptr);
if (endptr == val_str) {
+ CHECK_IGNORE_ERROR (NAN);
printf ("CRITICAL - result value is not a numeric: %s\n", val_str);
*field_type = DBI_TYPE_ERROR;
- return 0.0;
+ return NAN;
}
else if ((endptr != NULL) && (*endptr != '\0')) {
if (verbose)
@@ -478,6 +513,7 @@ get_field (dbi_conn conn, dbi_result res, unsigned short *field_type)
}
}
else {
+ CHECK_IGNORE_ERROR (NAN);
printf ("CRITICAL - cannot parse value of type %s (%i)\n",
(*field_type == DBI_TYPE_BINARY)
? "BINARY"
@@ -486,55 +522,43 @@ get_field (dbi_conn conn, dbi_result res, unsigned short *field_type)
: "<unknown>",
*field_type);
*field_type = DBI_TYPE_ERROR;
- return 0.0;
+ return NAN;
}
return val;
}
-int
-do_query (dbi_conn conn, double *res_val, double *res_time)
+double
+get_query_result (dbi_conn conn, dbi_result res, double *res_val)
{
- dbi_result res;
-
unsigned short field_type;
- double val = 0.0;
-
- struct timeval timeval_start, timeval_end;
-
- assert (np_dbi_query);
-
- if (verbose)
- printf ("Executing query '%s'\n", np_dbi_query);
-
- gettimeofday (&timeval_start, NULL);
-
- res = dbi_conn_query (conn, np_dbi_query);
- if (! res) {
- np_dbi_print_error (conn, "CRITICAL - failed to execute query '%s'", np_dbi_query);
- return STATE_CRITICAL;
- }
+ double val = NAN;
if (dbi_result_get_numrows (res) == DBI_ROW_ERROR) {
+ CHECK_IGNORE_ERROR (STATE_OK);
np_dbi_print_error (conn, "CRITICAL - failed to fetch rows");
return STATE_CRITICAL;
}
if (dbi_result_get_numrows (res) < 1) {
+ CHECK_IGNORE_ERROR (STATE_OK);
printf ("WARNING - no rows returned\n");
return STATE_WARNING;
}
if (dbi_result_get_numfields (res) == DBI_FIELD_ERROR) {
+ CHECK_IGNORE_ERROR (STATE_OK);
np_dbi_print_error (conn, "CRITICAL - failed to fetch fields");
return STATE_CRITICAL;
}
if (dbi_result_get_numfields (res) < 1) {
+ CHECK_IGNORE_ERROR (STATE_OK);
printf ("WARNING - no fields returned\n");
return STATE_WARNING;
}
if (dbi_result_first_row (res) != 1) {
+ CHECK_IGNORE_ERROR (STATE_OK);
np_dbi_print_error (conn, "CRITICAL - failed to fetch first row");
return STATE_CRITICAL;
}
@@ -543,20 +567,49 @@ do_query (dbi_conn conn, double *res_val, double *res_time)
if (field_type != DBI_TYPE_ERROR)
val = get_field (conn, res, &field_type);
- gettimeofday (&timeval_end, NULL);
- *res_time = timediff (timeval_start, timeval_end);
+ *res_val = val;
if (field_type == DBI_TYPE_ERROR) {
+ CHECK_IGNORE_ERROR (STATE_OK);
np_dbi_print_error (conn, "CRITICAL - failed to fetch data");
return STATE_CRITICAL;
}
- *res_val = val;
-
dbi_result_free (res);
return STATE_OK;
}
+#undef CHECK_IGNORE_ERROR
+
+int
+do_query (dbi_conn conn, double *res_val, double *res_time)
+{
+ dbi_result res;
+
+ struct timeval timeval_start, timeval_end;
+ int status = STATE_OK;
+
+ assert (np_dbi_query);
+
+ if (verbose)
+ printf ("Executing query '%s'\n", np_dbi_query);
+
+ gettimeofday (&timeval_start, NULL);
+
+ res = dbi_conn_query (conn, np_dbi_query);
+ if (! res) {
+ np_dbi_print_error (conn, "CRITICAL - failed to execute query '%s'", np_dbi_query);
+ return STATE_CRITICAL;
+ }
+
+ status = get_query_result (conn, res, res_val);
+
+ gettimeofday (&timeval_end, NULL);
+ *res_time = timediff (timeval_start, timeval_end);
+
+ return status;
+}
+
double
timediff (struct timeval start, struct timeval end)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 10:33:06 +0000