worst_disk->perf_data.last_disk_busy_percent, timestamp);
} /* void collect_perf_disk_data */
-static void collect_volume_data(host_config_t *host, na_elem_t *out, void *data) {
+static void collect_volume_data(host_config_t *host, na_elem_t *out, void *data) { /* {{{ */
na_elem_t *inst, *sis;
volume_t *volume;
volume_data_t *volume_data = data;
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
out = na_elem_child(out, "volumes");
na_elem_iter_t inst_iter = na_child_iterator(out);
for (inst = na_iterator_next(&inst_iter); inst; inst = na_iterator_next(&inst_iter)) {
- uint64_t size_free = 0, size_used = 0, snap_reserved = 0, sis_saved = 0;
+ uint64_t size_free = 0, size_used = 0, snap_reserved = 0;
+ const char *sis_state;
+ uint64_t sis_saved_reported;
+ uint64_t sis_saved_percent;
+ uint64_t sis_saved;
+
volume = get_volume(host, na_child_get_string(inst, "name"));
- if (!(volume->volume_data.flags & VOLUME_INIT)) volume->volume_data.flags = volume_data->flags;
- if (!(volume->volume_data.flags & VOLUME_DF)) continue;
- size_free = na_child_get_uint64(inst, "size-available", 0);
- size_used = na_child_get_uint64(inst, "size-used", 0);
- snap_reserved = na_child_get_uint64(inst, "snapshot-blocks-reserved", 0) * 1024;
+ if (volume == NULL)
+ continue;
- vl.values_len = 1;
- vl.values = values;
- vl.time = time(0);
- vl.interval = interval_g;
- sstrncpy(vl.plugin, "netapp", sizeof(vl.plugin));
- sstrncpy(vl.host, host->name, sizeof(vl.host));
- sstrncpy(vl.plugin_instance, volume->name, sizeof(vl.plugin_instance));
- sstrncpy(vl.type, "df_complex", sizeof(vl.type));
+ if (!(volume->volume_data.flags & VOLUME_INIT))
+ volume->volume_data.flags = volume_data->flags;
- values[0].gauge = size_used;
- sstrncpy(vl.type_instance, "used", sizeof(vl.type_instance));
- DEBUG("%s/netapp-%s/df_complex-used: %"PRIu64, host->name, volume->name, size_used);
- plugin_dispatch_values (&vl);
+ if (!(volume->volume_data.flags & VOLUME_DF))
+ continue;
- values[0].gauge = size_free;
- sstrncpy(vl.type_instance, "free", sizeof(vl.type_instance));
- DEBUG("%s/netapp-%s/df_complex-free: %"PRIu64, host->name, volume->name, size_free);
- plugin_dispatch_values (&vl);
+ /* 2^4 exa-bytes? This will take a while ;) */
+ size_free = na_child_get_uint64(inst, "size-available", UINT64_MAX);
+ size_used = na_child_get_uint64(inst, "size-used", UINT64_MAX);
+ snap_reserved = na_child_get_uint64(inst, "snapshot-blocks-reserved", UINT64_MAX);
- if (snap_reserved) {
- values[0].gauge = snap_reserved;
- sstrncpy(vl.type_instance, "snap_reserved", sizeof(vl.type_instance));
- DEBUG("%s/netapp-%s/df_complex-snap_reserved: %"PRIu64, host->name, volume->name, snap_reserved);
- plugin_dispatch_values (&vl);
- }
+ if (size_free != UINT64_MAX)
+ submit_double (host->name, volume->name, "df_complex", "used",
+ (double) size_used, /* time = */ 0);
+
+ if (size_free != UINT64_MAX)
+ submit_double (host->name, volume->name, "df_complex", "free",
+ (double) size_free, /* time = */ 0);
+
+ if (snap_reserved != UINT64_MAX)
+ /* 1 block == 1024 bytes as per API docs */
+ submit_double (host->name, volume->name, "df_complex", "snap_reserved",
+ (double) (1024 * snap_reserved), /* time = */ 0);
sis = na_elem_child(inst, "sis");
- if (sis && !strcmp(na_child_get_string(sis, "state"), "enabled")) {
- uint64_t sis_saved_reported = na_child_get_uint64(sis, "size-saved", 0), sis_saved_percent = na_child_get_uint64(sis, "percentage-saved", 0);
- /* size-saved is actually a 32 bit number, so ... time for some guesswork. */
- if (sis_saved_reported >> 32) {
- /* In case they ever fix this bug. */
- sis_saved = sis_saved_reported;
+ if (sis == NULL)
+ continue;
+
+ sis_state = na_child_get_string(sis, "state");
+ if ((sis_state == NULL)
+ || (strcmp ("enabled", sis_state) != 0))
+ continue;
+
+ sis_saved_reported = na_child_get_uint64(sis, "size-saved", UINT64_MAX);
+ sis_saved_percent = na_child_get_uint64(sis, "percentage-saved", UINT64_MAX);
+
+ /* sis_saved_percent == 100 leads to division by zero below */
+ if ((sis_saved_reported == UINT64_MAX) || (sis_saved_percent > 99))
+ continue;
+
+ /* size-saved is actually a 32 bit number, so ... time for some guesswork. */
+ if ((sis_saved_reported >> 32) != 0) {
+ /* In case they ever fix this bug. */
+ sis_saved = sis_saved_reported;
+ } else {
+ /* The "size-saved" value is a 32bit unsigned integer. This is a bug and
+ * will hopefully be fixed in later versions. To work around the bug, try
+ * to figure out how often the 32bit integer wrapped around by using the
+ * "percentage-saved" value. Because the percentage is in the range
+ * [0-100], this should work as long as the saved space does not exceed
+ * 400 GBytes. */
+ uint64_t real_saved = sis_saved_percent * size_used / (100 - sis_saved_percent);
+ uint64_t overflow_guess = real_saved >> 32;
+ uint64_t guess1 = overflow_guess ? ((overflow_guess - 1) << 32) + sis_saved_reported : sis_saved_reported;
+ uint64_t guess2 = (overflow_guess << 32) + sis_saved_reported;
+ uint64_t guess3 = ((overflow_guess + 1) << 32) + sis_saved_reported;
+
+ if (real_saved < guess2) {
+ if ((real_saved - guess1) < (guess2 - real_saved))
+ sis_saved = guess1;
+ else
+ sis_saved = guess2;
} else {
- uint64_t real_saved = sis_saved_percent * size_used / (100 - sis_saved_percent);
- uint64_t overflow_guess = real_saved >> 32;
- uint64_t guess1 = overflow_guess ? ((overflow_guess - 1) << 32) + sis_saved_reported : sis_saved_reported;
- uint64_t guess2 = (overflow_guess << 32) + sis_saved_reported;
- uint64_t guess3 = ((overflow_guess + 1) << 32) + sis_saved_reported;
-
- if (real_saved < guess2) {
- if (real_saved - guess1 < guess2 - real_saved) sis_saved = guess1;
- else sis_saved = guess2;
- } else {
- if (real_saved - guess2 < guess3 - real_saved) sis_saved = guess2;
- else sis_saved = guess3;
- }
+ if ((real_saved - guess2) < (guess3 - real_saved))
+ sis_saved = guess2;
+ else
+ sis_saved = guess3;
}
- values[0].gauge = sis_saved;
- sstrncpy(vl.type_instance, "sis_saved", sizeof(vl.type_instance));
- DEBUG("%s/netapp-%s/df_complex-sis_saved: %"PRIu64, host->name, volume->name, sis_saved);
- plugin_dispatch_values (&vl);
}
+
+ submit_double (host->name, volume->name, "df_complex", "sis_saved",
+ (double) sis_saved, /* time = */ 0);
}
-}
+} /* }}} void collect_volume_data */
static void collect_perf_volume_data(host_config_t *host, na_elem_t *out, void *data) {
perf_volume_data_t *perf = data;
projects / collectd.git / commitdiff