/**
* collectd - src/utils_threshold.c
- * Copyright (C) 2007 Florian octo Forster
+ * Copyright (C) 2007,2008 Florian octo Forster
*
* 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
/*
* Private data structures
* {{{ */
+#define UT_FLAG_INVERT 0x01
+#define UT_FLAG_PERSIST 0x02
+
typedef struct threshold_s
{
char host[DATA_MAX_NAME_LEN];
char plugin_instance[DATA_MAX_NAME_LEN];
char type[DATA_MAX_NAME_LEN];
char type_instance[DATA_MAX_NAME_LEN];
- gauge_t min;
- gauge_t max;
- int invert;
+ gauge_t warning_min;
+ gauge_t warning_max;
+ gauge_t failure_min;
+ gauge_t failure_max;
+ int flags;
} threshold_t;
/* }}} */
/*
* Private (static) variables
* {{{ */
-static avl_tree_t *threshold_tree = NULL;
+static c_avl_tree_t *threshold_tree = NULL;
static pthread_mutex_t threshold_lock = PTHREAD_MUTEX_INITIALIZER;
/* }}} */
DEBUG ("ut_threshold_add: Adding entry `%s'", name);
pthread_mutex_lock (&threshold_lock);
- status = avl_insert (threshold_tree, name_copy, th_copy);
+ status = c_avl_insert (threshold_tree, name_copy, th_copy);
pthread_mutex_unlock (&threshold_lock);
if (status != 0)
{
- ERROR ("ut_threshold_add: avl_insert (%s) failed.", name);
+ ERROR ("ut_threshold_add: c_avl_insert (%s) failed.", name);
sfree (name_copy);
sfree (th_copy);
}
if ((ci->values_num != 1)
|| (ci->values[0].type != OCONFIG_TYPE_NUMBER))
{
- WARNING ("threshold values: The `Max' option needs exactly one "
- "number argument.");
+ WARNING ("threshold values: The `%s' option needs exactly one "
+ "number argument.", ci->key);
return (-1);
}
- th->max = ci->values[0].value.number;
+ if (strcasecmp (ci->key, "WarningMax") == 0)
+ th->warning_min = ci->values[0].value.number;
+ else
+ th->failure_min = ci->values[0].value.number;
return (0);
} /* int ut_config_type_max */
if ((ci->values_num != 1)
|| (ci->values[0].type != OCONFIG_TYPE_NUMBER))
{
- WARNING ("threshold values: The `Min' option needs exactly one "
- "number argument.");
+ WARNING ("threshold values: The `%s' option needs exactly one "
+ "number argument.", ci->key);
return (-1);
}
- th->min = ci->values[0].value.number;
+ if (strcasecmp (ci->key, "WarningMin") == 0)
+ th->warning_min = ci->values[0].value.number;
+ else
+ th->failure_min = ci->values[0].value.number;
return (0);
} /* int ut_config_type_min */
return (-1);
}
- th->invert = (ci->values[0].value.boolean) ? 1 : 0;
+ if (ci->values[0].value.boolean)
+ th->flags |= UT_FLAG_INVERT;
+ else
+ th->flags &= ~UT_FLAG_INVERT;
return (0);
} /* int ut_config_type_invert */
+static int ut_config_type_persist (threshold_t *th, oconfig_item_t *ci)
+{
+ if ((ci->values_num != 1)
+ || (ci->values[0].type != OCONFIG_TYPE_BOOLEAN))
+ {
+ WARNING ("threshold values: The `Persist' option needs exactly one "
+ "boolean argument.");
+ return (-1);
+ }
+
+ if (ci->values[0].value.boolean)
+ th->flags |= UT_FLAG_PERSIST;
+ else
+ th->flags &= ~UT_FLAG_PERSIST;
+
+ return (0);
+} /* int ut_config_type_persist */
+
static int ut_config_type (const threshold_t *th_orig, oconfig_item_t *ci)
{
int i;
strncpy (th.type, ci->values[0].value.string, sizeof (th.type));
th.type[sizeof (th.type) - 1] = '\0';
+ th.warning_min = NAN;
+ th.warning_max = NAN;
+ th.failure_min = NAN;
+ th.failure_max = NAN;
+
for (i = 0; i < ci->children_num; i++)
{
oconfig_item_t *option = ci->children + i;
if (strcasecmp ("Instance", option->key) == 0)
status = ut_config_type_instance (&th, option);
- else if (strcasecmp ("Max", option->key) == 0)
+ else if ((strcasecmp ("WarningMax", option->key) == 0)
+ || (strcasecmp ("FailureMax", option->key) == 0))
status = ut_config_type_max (&th, option);
- else if (strcasecmp ("Min", option->key) == 0)
+ else if ((strcasecmp ("WarningMin", option->key) == 0)
+ || (strcasecmp ("FailureMin", option->key) == 0))
status = ut_config_type_min (&th, option);
else if (strcasecmp ("Invert", option->key) == 0)
status = ut_config_type_invert (&th, option);
+ else if (strcasecmp ("Persist", option->key) == 0)
+ status = ut_config_type_persist (&th, option);
else
{
WARNING ("threshold values: Option `%s' not allowed inside a `Type' "
threshold_t th;
+ if (ci->values_num != 0)
+ {
+ ERROR ("threshold values: The `Threshold' block may not have any "
+ "arguments.");
+ return (-1);
+ }
+
if (threshold_tree == NULL)
{
- threshold_tree = avl_create ((void *) strcmp);
+ threshold_tree = c_avl_create ((void *) strcmp);
if (threshold_tree == NULL)
{
- ERROR ("ut_config: avl_create failed.");
+ ERROR ("ut_config: c_avl_create failed.");
return (-1);
}
}
memset (&th, '\0', sizeof (th));
- th.min = NAN;
- th.max = NAN;
+ th.warning_min = NAN;
+ th.warning_max = NAN;
+ th.failure_min = NAN;
+ th.failure_max = NAN;
for (i = 0; i < ci->children_num; i++)
{
(type == NULL) ? "" : type, type_instance);
name[sizeof (name) - 1] = '\0';
- if (avl_get (threshold_tree, name, (void *) &th) == 0)
+ if (c_avl_get (threshold_tree, name, (void *) &th) == 0)
return (th);
else
return (NULL);
if (threshold_tree == NULL)
return (0);
+ /* Is this lock really necessary? So far, thresholds are only inserted at
+ * startup. -octo */
pthread_mutex_lock (&threshold_lock);
th = threshold_search (ds, vl);
pthread_mutex_unlock (&threshold_lock);
if (th == NULL)
return (0);
- DEBUG ("Found matching threshold");
+ DEBUG ("ut_check_threshold: Found matching threshold");
values = uc_get_rate (ds, vl);
if (values == NULL)
for (i = 0; i < ds->ds_num; i++)
{
- if ((th->min > values[i]) || (th->max < values[i]))
+ int is_inverted = 0;
+ int is_warning = 0;
+ int is_failure = 0;
+
+ if ((th->flags & UT_FLAG_INVERT) != 0)
+ is_inverted = 1;
+ if ((!isnan (th->failure_min) && (th->failure_min > values[i]))
+ || (!isnan (th->failure_max) && (th->failure_max < values[i])))
+ is_failure = is_inverted - 1;
+ if ((!isnan (th->warning_min) && (th->warning_min > values[i]))
+ || (!isnan (th->warning_max) && (th->warning_max < values[i])))
+ is_warning = is_inverted - 1;
+
+ if ((is_failure != 0) || (is_warning != 0))
{
notification_t n;
char *buf;
size_t bufsize;
int status;
- WARNING ("ut_check_threshold: ds[%s]: %lf <= !%lf <= %lf",
- ds->ds[i].name, th->min, values[i], th->max);
+ double min;
+ double max;
+
+ min = (is_failure != 0) ? th->failure_min : th->warning_min;
+ max = (is_failure != 0) ? th->failure_max : th->warning_max;
+
+ DEBUG ("ut_check_threshold: ds[%s]: %lf <= !%lf <= %lf (invert: %s)",
+ ds->ds[i].name, min, values[i], max,
+ is_inverted ? "true" : "false");
+
+ /* Copy the associative members */
+ NOTIFICATION_INIT_VL (&n, vl, ds);
+
+ n.severity = (is_failure != 0) ? NOTIF_FAILURE : NOTIF_WARNING;
+ n.time = vl->time;
buf = n.message;
bufsize = sizeof (n.message);
bufsize -= status;
}
- status = snprintf (buf, bufsize, ": Data source \"%s\" is currently "
- "%lf. That is %s the configured threshold of %lf.",
- ds->ds[i].name, values[i],
- (values[i] < th->min) ? "below" : "above",
- (values[i] < th->min) ? th->min : th->max);
+ if (is_inverted)
+ {
+ if (!isnan (min) && !isnan (max))
+ {
+ status = snprintf (buf, bufsize, ": Data source \"%s\" is currently "
+ "%f. That is within the %s region of %f and %f.",
+ ds->ds[i].name, values[i],
+ (is_failure != 0) ? "failure" : "warning",
+ min, min);
+ }
+ else
+ {
+ status = snprintf (buf, bufsize, ": Data source \"%s\" is currently "
+ "%f. That is %s the %s threshold of %f.",
+ ds->ds[i].name, values[i],
+ isnan (min) ? "below" : "above",
+ (is_failure != 0) ? "failure" : "warning",
+ isnan (min) ? max : min);
+ }
+ }
+ else /* (!is_inverted) */
+ {
+ status = snprintf (buf, bufsize, ": Data source \"%s\" is currently "
+ "%f. That is %s the %s threshold of %f.",
+ ds->ds[i].name, values[i],
+ (values[i] < min) ? "below" : "above",
+ (is_failure != 0) ? "failure" : "warning",
+ (values[i] < min) ? min : max);
+ }
buf += status;
bufsize -= status;
- n.severity = NOTIF_FAILURE;
- n.time = vl->time;
-
- strncpy (n.host, vl->host, sizeof (n.host));
- n.host[sizeof (n.host) - 1] = '\0';
-
plugin_dispatch_notification (&n);
}
} /* for (i = 0; i < ds->ds_num; i++) */
return (0);
} /* int ut_check_threshold */
+int ut_check_interesting (const char *name)
+{
+ char *name_copy = NULL;
+ char *host = NULL;
+ char *plugin = NULL;
+ char *plugin_instance = NULL;
+ char *type = NULL;
+ char *type_instance = NULL;
+ int status;
+ data_set_t ds;
+ value_list_t vl;
+ threshold_t *th;
+
+ /* If there is no tree nothing is interesting. */
+ if (threshold_tree == NULL)
+ return (0);
+
+ name_copy = strdup (name);
+ if (name_copy == NULL)
+ {
+ ERROR ("ut_check_interesting: strdup failed.");
+ return (-1);
+ }
+
+ status = parse_identifier (name_copy, &host,
+ &plugin, &plugin_instance, &type, &type_instance);
+ if (status != 0)
+ {
+ ERROR ("ut_check_interesting: parse_identifier failed.");
+ return (-1);
+ }
+
+ memset (&ds, '\0', sizeof (ds));
+ memset (&vl, '\0', sizeof (vl));
+
+ strncpy (vl.host, host, sizeof (vl.host));
+ vl.host[sizeof (vl.host) - 1] = '\0';
+ strncpy (vl.plugin, plugin, sizeof (vl.plugin));
+ vl.plugin[sizeof (vl.plugin) - 1] = '\0';
+ if (plugin_instance != NULL)
+ {
+ strncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
+ vl.plugin_instance[sizeof (vl.plugin_instance) - 1] = '\0';
+ }
+ strncpy (ds.type, type, sizeof (ds.type));
+ ds.type[sizeof (ds.type) - 1] = '\0';
+ if (type_instance != NULL)
+ {
+ strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ vl.type_instance[sizeof (vl.type_instance) - 1] = '\0';
+ }
+
+ sfree (name_copy);
+ host = plugin = plugin_instance = type = type_instance = NULL;
+
+ th = threshold_search (&ds, &vl);
+ if (th == NULL)
+ return (0);
+ if ((th->flags & UT_FLAG_PERSIST) == 0)
+ return (1);
+ return (2);
+} /* int ut_check_interesting */
+
/* vim: set sw=2 ts=8 sts=2 tw=78 fdm=marker : */
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