* \brief Persistent data for WAFL performance counters. (a.k.a. cache performance)
*
* The cache counters use old counter values to calculate a hit ratio for each
- * counter. The "data_wafl_t" struct therefore contains old counter values
- * along with flags, which are set if the counter is valid.
+ * counter. The "cfg_wafl_t" struct therefore contains old counter values along
+ * with flags, which are set if the counter is valid.
*
- * The function "query_wafl_data" will fill a new structure of this kind with
- * new values, then pass both, new and old data, to "submit_wafl_data". That
- * function calculates the hit ratios, submits the calculated values and
+ * The function "cna_handle_wafl_data" will fill a new structure of this kind
+ * with new values, then pass both, new and old data, to "submit_wafl_data".
+ * That function calculates the hit ratios, submits the calculated values and
* updates the old counter values for the next iteration.
*/
#define CFG_WAFL_NAME_CACHE 0x0001
#define HAVE_WAFL_ALL 0xff00
typedef struct {
uint32_t flags;
+ cna_interval_t interval;
+ na_elem_t *query;
+
time_t timestamp;
uint64_t name_cache_hit;
uint64_t name_cache_miss;
uint64_t buf_hash_miss;
uint64_t inode_cache_hit;
uint64_t inode_cache_miss;
-} data_wafl_t;
+} cfg_wafl_t;
/*!
* \brief Persistent data for volume performance data.
na_server_t *srv;
cfg_service_t *services;
cfg_disk_t *cfg_disk;
+ cfg_wafl_t *cfg_wafl;
volume_t *volumes;
struct host_config_s *next;
} /* }}} int submit_cache_ratio */
/* Submits all the caches used by WAFL. Uses "submit_cache_ratio". */
-static int submit_wafl_data (const host_config_t *host, const char *instance, /* {{{ */
- data_wafl_t *old_data, const data_wafl_t *new_data)
+static int submit_wafl_data (const char *hostname, const char *instance, /* {{{ */
+ cfg_wafl_t *old_data, const cfg_wafl_t *new_data)
{
/* Submit requested counters */
if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_NAME_CACHE | HAVE_WAFL_NAME_CACHE)
&& HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_NAME_CACHE))
- submit_cache_ratio (host->name, instance, "name_cache_hit",
+ submit_cache_ratio (hostname, instance, "name_cache_hit",
new_data->name_cache_hit, new_data->name_cache_miss,
old_data->name_cache_hit, old_data->name_cache_miss,
new_data->timestamp);
if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_DIR_CACHE | HAVE_WAFL_FIND_DIR)
&& HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_FIND_DIR))
- submit_cache_ratio (host->name, instance, "find_dir_hit",
+ submit_cache_ratio (hostname, instance, "find_dir_hit",
new_data->find_dir_hit, new_data->find_dir_miss,
old_data->find_dir_hit, old_data->find_dir_miss,
new_data->timestamp);
if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_BUF_CACHE | HAVE_WAFL_BUF_HASH)
&& HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_BUF_HASH))
- submit_cache_ratio (host->name, instance, "buf_hash_hit",
+ submit_cache_ratio (hostname, instance, "buf_hash_hit",
new_data->buf_hash_hit, new_data->buf_hash_miss,
old_data->buf_hash_hit, old_data->buf_hash_miss,
new_data->timestamp);
if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_INODE_CACHE | HAVE_WAFL_INODE_CACHE)
&& HAS_ALL_FLAGS (new_data->flags, HAVE_WAFL_INODE_CACHE))
- submit_cache_ratio (host->name, instance, "inode_cache_hit",
+ submit_cache_ratio (hostname, instance, "inode_cache_hit",
new_data->inode_cache_hit, new_data->inode_cache_miss,
old_data->inode_cache_hit, old_data->inode_cache_miss,
new_data->timestamp);
* These functions are called with appropriate data returned by the libnetapp
* interface which is parsed and submitted with the above functions.
*/
-/* Data corresponding to <GetWaflPerfData /> */
-static void query_wafl_data(host_config_t *host, na_elem_t *out, void *data) { /* {{{ */
- data_wafl_t *wafl = data;
- data_wafl_t perf_data;
+/* Data corresponding to <WAFL /> */
+static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /* {{{ */
+ na_elem_t *data)
+{
+ cfg_wafl_t perf_data;
const char *plugin_inst;
+
+ na_elem_t *instances;
na_elem_t *counter;
+ na_elem_iter_t counter_iter;
memset (&perf_data, 0, sizeof (perf_data));
- perf_data.timestamp = (time_t) na_child_get_uint64(out, "timestamp", 0);
+ perf_data.timestamp = (time_t) na_child_get_uint64 (data, "timestamp", 0);
- out = na_elem_child(na_elem_child(out, "instances"), "instance-data");
- if (out == NULL)
- return;
+ instances = na_elem_child(na_elem_child (data, "instances"), "instance-data");
+ if (instances == NULL)
+ {
+ ERROR ("netapp plugin: cna_handle_wafl_data: "
+ "na_elem_child (\"instances\") failed.");
+ return (-1);
+ }
- plugin_inst = na_child_get_string(out, "name");
+ plugin_inst = na_child_get_string(instances, "name");
if (plugin_inst == NULL)
- return;
+ {
+ ERROR ("netapp plugin: cna_handle_wafl_data: "
+ "na_child_get_string (\"name\") failed.");
+ return (-1);
+ }
/* Iterate over all counters */
- na_elem_iter_t iter = na_child_iterator(na_elem_child(out, "counters"));
- for (counter = na_iterator_next(&iter); counter; counter = na_iterator_next(&iter)) {
+ counter_iter = na_child_iterator (na_elem_child (instances, "counters"));
+ for (counter = na_iterator_next (&counter_iter);
+ counter != NULL;
+ counter = na_iterator_next (&counter_iter))
+ {
const char *name;
uint64_t value;
perf_data.inode_cache_miss = value;
perf_data.flags |= HAVE_WAFL_INODE_CACHE_MISS;
} else {
- DEBUG("netapp plugin: query_wafl_data: Found unexpected child: %s",
- name);
+ DEBUG("netapp plugin: cna_handle_wafl_data: "
+ "Found unexpected child: %s", name);
}
}
- submit_wafl_data (host, plugin_inst, wafl, &perf_data);
-} /* }}} void query_wafl_data */
+ return (submit_wafl_data (hostname, plugin_inst, cfg_wafl, &perf_data));
+} /* }}} void cna_handle_wafl_data */
+
+static int cna_setup_wafl (cfg_wafl_t *cw) /* {{{ */
+{
+ na_elem_t *e;
+
+ if (cw == NULL)
+ return (EINVAL);
+
+ if (cw->query != NULL)
+ return (0);
+
+ cw->query = na_elem_new("perf-object-get-instances");
+ if (cw->query == NULL)
+ {
+ ERROR ("netapp plugin: na_elem_new failed.");
+ return (-1);
+ }
+ na_child_add_string (cw->query, "objectname", "wafl");
+
+ e = na_elem_new("counters");
+ if (e == NULL)
+ {
+ na_elem_free (cw->query);
+ cw->query = NULL;
+ ERROR ("netapp plugin: na_elem_new failed.");
+ return (-1);
+ }
+ na_child_add_string(e, "foo", "name_cache_hit");
+ na_child_add_string(e, "foo", "name_cache_miss");
+ na_child_add_string(e, "foo", "find_dir_hit");
+ na_child_add_string(e, "foo", "find_dir_miss");
+ na_child_add_string(e, "foo", "buf_hash_hit");
+ na_child_add_string(e, "foo", "buf_hash_miss");
+ na_child_add_string(e, "foo", "inode_cache_hit");
+ na_child_add_string(e, "foo", "inode_cache_miss");
+
+ na_child_add(cw->query, e);
+
+ return (0);
+} /* }}} int cna_setup_wafl */
+
+static int cna_query_wafl (host_config_t *host) /* {{{ */
+{
+ na_elem_t *data;
+ int status;
+ time_t now;
+
+ if (host == NULL)
+ return (EINVAL);
+
+ if (host->cfg_wafl == NULL)
+ return (0);
+
+ now = time (NULL);
+ if ((host->cfg_wafl->interval.interval + host->cfg_wafl->interval.last_read) > now)
+ return (0);
+
+ status = cna_setup_wafl (host->cfg_wafl);
+ if (status != 0)
+ return (status);
+ assert (host->cfg_wafl->query != NULL);
+
+ data = na_server_invoke_elem(host->srv, host->cfg_wafl->query);
+ if (na_results_status (data) != NA_OK)
+ {
+ ERROR ("netapp plugin: cna_query_wafl: na_server_invoke_elem failed: %s",
+ na_results_reason (data));
+ na_elem_free (data);
+ return (-1);
+ }
+
+ status = cna_handle_wafl_data (host->name, host->cfg_wafl, data);
+
+ if (status == 0)
+ host->cfg_wafl->interval.last_read = now;
+
+ na_elem_free (data);
+ return (status);
+} /* }}} int cna_query_wafl */
/* Data corresponding to <Disks /> */
static int cna_handle_disk_data (const char *hostname, /* {{{ */
return (0);
} /* }}} int cna_config_disk */
-/* Corresponds to a <GetWaflPerfData /> block */
-static void cna_config_wafl(host_config_t *host, oconfig_item_t *ci) { /* {{{ */
+/* Corresponds to a <WAFL /> block */
+static int cna_config_wafl(host_config_t *host, oconfig_item_t *ci) /* {{{ */
+{
+ cfg_wafl_t *cfg_wafl;
int i;
- cfg_service_t *service;
- data_wafl_t *perf_wafl;
-
- service = malloc(sizeof(*service));
- if (service == NULL)
- return;
- memset (service, 0, sizeof (*service));
- service->query = 0;
- service->handler = query_wafl_data;
- perf_wafl = service->data = malloc(sizeof(*perf_wafl));
- perf_wafl->flags = CFG_WAFL_ALL;
+ if ((host == NULL) || (ci == NULL))
+ return (EINVAL);
+
+ if (host->cfg_wafl == NULL)
+ {
+ cfg_wafl = malloc (sizeof (*cfg_wafl));
+ if (cfg_wafl == NULL)
+ return (ENOMEM);
+ memset (cfg_wafl, 0, sizeof (*cfg_wafl));
+
+ /* Set default flags */
+ cfg_wafl->flags = CFG_WAFL_ALL;
+
+ host->cfg_wafl = cfg_wafl;
+ }
+ cfg_wafl = host->cfg_wafl;
for (i = 0; i < ci->children_num; ++i) {
oconfig_item_t *item = ci->children + i;
- if (!strcasecmp(item->key, "Multiplier")) {
- cna_config_get_multiplier (item, service);
- } else if (!strcasecmp(item->key, "GetNameCache")) {
- cna_config_bool_to_flag (item, &perf_wafl->flags, CFG_WAFL_NAME_CACHE);
- } else if (!strcasecmp(item->key, "GetDirCache")) {
- cna_config_bool_to_flag (item, &perf_wafl->flags, CFG_WAFL_DIR_CACHE);
- } else if (!strcasecmp(item->key, "GetBufCache")) {
- cna_config_bool_to_flag (item, &perf_wafl->flags, CFG_WAFL_BUF_CACHE);
- } else if (!strcasecmp(item->key, "GetInodeCache")) {
- cna_config_bool_to_flag (item, &perf_wafl->flags, CFG_WAFL_INODE_CACHE);
- } else {
+ if (strcasecmp(item->key, "Interval") == 0)
+ cna_config_get_interval (item, &cfg_wafl->interval);
+ else if (!strcasecmp(item->key, "GetNameCache"))
+ cna_config_bool_to_flag (item, &cfg_wafl->flags, CFG_WAFL_NAME_CACHE);
+ else if (!strcasecmp(item->key, "GetDirCache"))
+ cna_config_bool_to_flag (item, &cfg_wafl->flags, CFG_WAFL_DIR_CACHE);
+ else if (!strcasecmp(item->key, "GetBufferCache"))
+ cna_config_bool_to_flag (item, &cfg_wafl->flags, CFG_WAFL_BUF_CACHE);
+ else if (!strcasecmp(item->key, "GetInodeCache"))
+ cna_config_bool_to_flag (item, &cfg_wafl->flags, CFG_WAFL_INODE_CACHE);
+ else
WARNING ("netapp plugin: The %s config option is not allowed within "
- "`GetWaflPerfData' blocks.", item->key);
- }
+ "`WAFL' blocks.", item->key);
}
- service->next = host->services;
- host->services = service;
-} /* }}} void cna_config_wafl */
+ return (0);
+} /* }}} int cna_config_wafl */
/* Corresponds to a <GetSystemPerfData /> block */
static int cna_config_system (host_config_t *host, /* {{{ */
cna_config_volume_performance(host, item);
} else if (!strcasecmp(item->key, "GetSystemPerfData")) {
cna_config_system(host, item, &default_service);
- } else if (!strcasecmp(item->key, "GetWaflPerfData")) {
+ } else if (!strcasecmp(item->key, "WAFL")) {
cna_config_wafl(host, item);
} else if (!strcasecmp(item->key, "Disks")) {
cna_config_disk(host, item);
na_child_add_string(e, "foo", "read_latency");
na_child_add_string(e, "foo", "write_latency");
na_child_add(service->query, e);
- } else if (service->handler == query_wafl_data) {
- service->query = na_elem_new("perf-object-get-instances");
- na_child_add_string(service->query, "objectname", "wafl");
- e = na_elem_new("counters");
- na_child_add_string(e, "foo", "name_cache_hit");
- na_child_add_string(e, "foo", "name_cache_miss");
- na_child_add_string(e, "foo", "find_dir_hit");
- na_child_add_string(e, "foo", "find_dir_miss");
- na_child_add_string(e, "foo", "buf_hash_hit");
- na_child_add_string(e, "foo", "buf_hash_miss");
- na_child_add_string(e, "foo", "inode_cache_hit");
- na_child_add_string(e, "foo", "inode_cache_miss");
- /* na_child_add_string(e, "foo", "inode_eject_time"); */
- /* na_child_add_string(e, "foo", "buf_eject_time"); */
- na_child_add(service->query, e);
} else if (service->handler == collect_volume_data) {
service->query = na_elem_new("volume-list-info");
/* na_child_add_string(service->query, "objectname", "volume"); */
na_elem_free(out);
} /* for (host->services) */
+ cna_query_wafl (host);
cna_query_disk (host);
}
return 0;
projects / collectd.git / blobdiff