Merge branch 'ff/highres'
[collectd.git] / src / netapp.c
index ad19c6d..5c4b6e7 100644 (file)
@@ -38,8 +38,8 @@ typedef void service_handler_t(host_config_t *host, na_elem_t *result, void *dat
 
 struct cna_interval_s
 {
-       time_t interval;
-       time_t last_read;
+       cdtime_t interval;
+       cdtime_t last_read;
 };
 typedef struct cna_interval_s cna_interval_t;
 
@@ -79,7 +79,7 @@ typedef struct {
        cna_interval_t interval;
        na_elem_t *query;
 
-       time_t timestamp;
+       cdtime_t timestamp;
        uint64_t name_cache_hit;
        uint64_t name_cache_miss;
        uint64_t find_dir_hit;
@@ -104,7 +104,7 @@ typedef struct {
 typedef struct disk_s {
        char *name;
        uint32_t flags;
-       time_t timestamp;
+       cdtime_t timestamp;
        uint64_t disk_busy;
        uint64_t base_for_disk_busy;
        double disk_busy_percent;
@@ -153,7 +153,7 @@ typedef struct data_volume_perf_s data_volume_perf_t;
 struct data_volume_perf_s {
        char *name;
        uint32_t flags;
-       time_t timestamp;
+       cdtime_t timestamp;
 
        uint64_t read_bytes;
        uint64_t write_bytes;
@@ -242,7 +242,7 @@ struct host_config_s {
        int port;
        char *username;
        char *password;
-       int interval;
+       cdtime_t interval;
 
        na_server_t *srv;
        cfg_wafl_t *cfg_wafl;
@@ -566,7 +566,7 @@ static int submit_values (const char *host, /* {{{ */
                const char *plugin_inst,
                const char *type, const char *type_inst,
                value_t *values, int values_len,
-               time_t timestamp)
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_list_t vl = VALUE_LIST_INIT;
 
@@ -576,6 +576,9 @@ static int submit_values (const char *host, /* {{{ */
        if (timestamp > 0)
                vl.time = timestamp;
 
+       if (interval > 0)
+               vl.interval = interval;
+
        if (host != NULL)
                sstrncpy (vl.host, host, sizeof (vl.host));
        else
@@ -592,7 +595,7 @@ static int submit_values (const char *host, /* {{{ */
 
 static int submit_two_counters (const char *host, const char *plugin_inst, /* {{{ */
                const char *type, const char *type_inst, counter_t val0, counter_t val1,
-               time_t timestamp)
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t values[2];
 
@@ -600,23 +603,24 @@ static int submit_two_counters (const char *host, const char *plugin_inst, /* {{
        values[1].counter = val1;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               values, 2, timestamp));
+                               values, 2, timestamp, interval));
 } /* }}} int submit_two_counters */
 
 static int submit_counter (const char *host, const char *plugin_inst, /* {{{ */
-               const char *type, const char *type_inst, counter_t counter, time_t timestamp)
+               const char *type, const char *type_inst, counter_t counter,
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t v;
 
        v.counter = counter;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               &v, 1, timestamp));
+                               &v, 1, timestamp, interval));
 } /* }}} int submit_counter */
 
 static int submit_two_gauge (const char *host, const char *plugin_inst, /* {{{ */
                const char *type, const char *type_inst, gauge_t val0, gauge_t val1,
-               time_t timestamp)
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t values[2];
 
@@ -624,18 +628,19 @@ static int submit_two_gauge (const char *host, const char *plugin_inst, /* {{{ *
        values[1].gauge = val1;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               values, 2, timestamp));
+                               values, 2, timestamp, interval));
 } /* }}} int submit_two_gauge */
 
 static int submit_double (const char *host, const char *plugin_inst, /* {{{ */
-               const char *type, const char *type_inst, double d, time_t timestamp)
+               const char *type, const char *type_inst, double d,
+               cdtime_t timestamp, cdtime_t interval)
 {
        value_t v;
 
        v.gauge = (gauge_t) d;
 
        return (submit_values (host, plugin_inst, type, type_inst,
-                               &v, 1, timestamp));
+                               &v, 1, timestamp, interval));
 } /* }}} int submit_uint64 */
 
 /* Calculate hit ratio from old and new counters and submit the resulting
@@ -647,7 +652,8 @@ static int submit_cache_ratio (const char *host, /* {{{ */
                uint64_t new_misses,
                uint64_t old_hits,
                uint64_t old_misses,
-               time_t timestamp)
+               cdtime_t timestamp,
+               cdtime_t interval)
 {
        value_t v;
 
@@ -664,12 +670,12 @@ static int submit_cache_ratio (const char *host, /* {{{ */
        }
 
        return (submit_values (host, plugin_inst, "cache_ratio", type_inst,
-                               &v, 1, timestamp));
+                               &v, 1, timestamp, interval));
 } /* }}} int submit_cache_ratio */
 
 /* Submits all the caches used by WAFL. Uses "submit_cache_ratio". */
 static int submit_wafl_data (const char *hostname, const char *instance, /* {{{ */
-               cfg_wafl_t *old_data, const cfg_wafl_t *new_data)
+               cfg_wafl_t *old_data, const cfg_wafl_t *new_data, int interval)
 {
        /* Submit requested counters */
        if (HAS_ALL_FLAGS (old_data->flags, CFG_WAFL_NAME_CACHE | HAVE_WAFL_NAME_CACHE)
@@ -677,28 +683,28 @@ static int submit_wafl_data (const char *hostname, const char *instance, /* {{{
                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);
+                               new_data->timestamp, interval);
 
        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 (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);
+                               new_data->timestamp, interval);
 
        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 (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);
+                               new_data->timestamp, interval);
 
        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 (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);
+                               new_data->timestamp, interval);
 
        /* Clear old HAVE_* flags */
        old_data->flags &= ~HAVE_WAFL_ALL;
@@ -724,7 +730,7 @@ static int submit_wafl_data (const char *hostname, const char *instance, /* {{{
  * update flags appropriately. */
 static int submit_volume_perf_data (const char *hostname, /* {{{ */
                data_volume_perf_t *old_data,
-               const data_volume_perf_t *new_data)
+               const data_volume_perf_t *new_data, int interval)
 {
        char plugin_instance[DATA_MAX_NAME_LEN];
 
@@ -739,7 +745,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_VOLUME_PERF_BYTES_READ | HAVE_VOLUME_PERF_BYTES_WRITE))
        {
                submit_two_counters (hostname, plugin_instance, "disk_octets", /* type instance = */ NULL,
-                               (counter_t) new_data->read_bytes, (counter_t) new_data->write_bytes, new_data->timestamp);
+                               (counter_t) new_data->read_bytes, (counter_t) new_data->write_bytes, new_data->timestamp, interval);
        }
 
        /* Check for and submit disk-operations values */
@@ -747,7 +753,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
                        && HAS_ALL_FLAGS (new_data->flags, HAVE_VOLUME_PERF_OPS_READ | HAVE_VOLUME_PERF_OPS_WRITE))
        {
                submit_two_counters (hostname, plugin_instance, "disk_ops", /* type instance = */ NULL,
-                               (counter_t) new_data->read_ops, (counter_t) new_data->write_ops, new_data->timestamp);
+                               (counter_t) new_data->read_ops, (counter_t) new_data->write_ops, new_data->timestamp, interval);
        }
 
        /* Check for, calculate and submit disk-latency values */
@@ -791,7 +797,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
                }
 
                submit_two_gauge (hostname, plugin_instance, "disk_latency", /* type instance = */ NULL,
-                               latency_per_op_read, latency_per_op_write, new_data->timestamp);
+                               latency_per_op_read, latency_per_op_write, new_data->timestamp, interval);
        }
 
        /* Clear all HAVE_* flags. */
@@ -812,6 +818,16 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
        return (0);
 } /* }}} int submit_volume_perf_data */
 
+static cdtime_t cna_child_get_cdtime (na_elem_t *data) /* {{{ */
+{
+       time_t t;
+
+       t = (time_t) na_child_get_uint64 (data, "timestamp", /* default = */ 0);
+
+       return (TIME_T_TO_CDTIME_T (t));
+} /* }}} cdtime_t cna_child_get_cdtime */
+
+
 /* 
  * Query functions
  *
@@ -820,7 +836,7 @@ static int submit_volume_perf_data (const char *hostname, /* {{{ */
  */
 /* Data corresponding to <WAFL /> */
 static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /* {{{ */
-               na_elem_t *data)
+               na_elem_t *data, int interval)
 {
        cfg_wafl_t perf_data;
        const char *plugin_inst;
@@ -831,13 +847,14 @@ static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /*
 
        memset (&perf_data, 0, sizeof (perf_data));
        
-       perf_data.timestamp = (time_t) na_child_get_uint64 (data, "timestamp", 0);
+       perf_data.timestamp = cna_child_get_cdtime (data);
 
        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.");
+                               "na_elem_child (\"instances\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -845,7 +862,8 @@ static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /*
        if (plugin_inst == NULL)
        {
                ERROR ("netapp plugin: cna_handle_wafl_data: "
-                               "na_child_get_string (\"name\") failed.");
+                               "na_child_get_string (\"name\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -892,11 +910,12 @@ static int cna_handle_wafl_data (const char *hostname, cfg_wafl_t *cfg_wafl, /*
                        perf_data.flags |= HAVE_WAFL_INODE_CACHE_MISS;
                } else {
                        DEBUG("netapp plugin: cna_handle_wafl_data: "
-                                       "Found unexpected child: %s", name);
+                                       "Found unexpected child: %s "
+                                       "for host %s.", name, hostname);
                }
        }
 
-       return (submit_wafl_data (hostname, plugin_inst, cfg_wafl, &perf_data));
+       return (submit_wafl_data (hostname, plugin_inst, cfg_wafl, &perf_data, interval));
 } /* }}} void cna_handle_wafl_data */
 
 static int cna_setup_wafl (cfg_wafl_t *cw) /* {{{ */
@@ -943,7 +962,7 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -952,7 +971,7 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
        if (host->cfg_wafl == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_wafl->interval.interval + host->cfg_wafl->interval.last_read) > now)
                return (0);
 
@@ -964,13 +983,13 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
        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));
+               ERROR ("netapp plugin: cna_query_wafl: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
                na_elem_free (data);
                return (-1);
        }
 
-       status = cna_handle_wafl_data (host->name, host->cfg_wafl, data);
+       status = cna_handle_wafl_data (host->name, host->cfg_wafl, data, host->interval);
 
        if (status == 0)
                host->cfg_wafl->interval.last_read = now;
@@ -981,9 +1000,9 @@ static int cna_query_wafl (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <Disks /> */
 static int cna_handle_disk_data (const char *hostname, /* {{{ */
-               cfg_disk_t *cfg_disk, na_elem_t *data)
+               cfg_disk_t *cfg_disk, na_elem_t *data, cdtime_t interval)
 {
-       time_t timestamp;
+       cdtime_t timestamp;
        na_elem_t *instances;
        na_elem_t *instance;
        na_elem_iter_t instance_iter;
@@ -992,13 +1011,14 @@ static int cna_handle_disk_data (const char *hostname, /* {{{ */
        if ((cfg_disk == NULL) || (data == NULL))
                return (EINVAL);
        
-       timestamp = (time_t) na_child_get_uint64(data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        instances = na_elem_child (data, "instances");
        if (instances == NULL)
        {
                ERROR ("netapp plugin: cna_handle_disk_data: "
-                               "na_elem_child (\"instances\") failed.");
+                               "na_elem_child (\"instances\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -1094,7 +1114,7 @@ static int cna_handle_disk_data (const char *hostname, /* {{{ */
 
        if ((cfg_disk->flags & CFG_DISK_BUSIEST) && (worst_disk != NULL))
                submit_double (hostname, "system", "percent", "disk_busy",
-                               worst_disk->disk_busy_percent, timestamp);
+                               worst_disk->disk_busy_percent, timestamp, interval);
 
        return (0);
 } /* }}} int cna_handle_disk_data */
@@ -1136,7 +1156,7 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1146,7 +1166,7 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
        if (host->cfg_disk == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_disk->interval.interval + host->cfg_disk->interval.last_read) > now)
                return (0);
 
@@ -1158,13 +1178,13 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
        data = na_server_invoke_elem(host->srv, host->cfg_disk->query);
        if (na_results_status (data) != NA_OK)
        {
-               ERROR ("netapp plugin: cna_query_disk: na_server_invoke_elem failed: %s",
-                               na_results_reason (data));
+               ERROR ("netapp plugin: cna_query_disk: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
                na_elem_free (data);
                return (-1);
        }
 
-       status = cna_handle_disk_data (host->name, host->cfg_disk, data);
+       status = cna_handle_disk_data (host->name, host->cfg_disk, data, host->interval);
 
        if (status == 0)
                host->cfg_disk->interval.last_read = now;
@@ -1175,20 +1195,21 @@ static int cna_query_disk (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <VolumePerf /> */
 static int cna_handle_volume_perf_data (const char *hostname, /* {{{ */
-               cfg_volume_perf_t *cvp, na_elem_t *data)
+               cfg_volume_perf_t *cvp, na_elem_t *data, cdtime_t interval)
 {
-       time_t timestamp;
+       cdtime_t timestamp;
        na_elem_t *elem_instances;
        na_elem_iter_t iter_instances;
        na_elem_t *elem_instance;
        
-       timestamp = (time_t) na_child_get_uint64(data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        elem_instances = na_elem_child(data, "instances");
        if (elem_instances == NULL)
        {
                ERROR ("netapp plugin: handle_volume_perf_data: "
-                               "na_elem_child (\"instances\") failed.");
+                               "na_elem_child (\"instances\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -1259,7 +1280,7 @@ static int cna_handle_volume_perf_data (const char *hostname, /* {{{ */
                        }
                } /* for (elem_counter) */
 
-               submit_volume_perf_data (hostname, v, &perf_data);
+               submit_volume_perf_data (hostname, v, &perf_data, interval);
        } /* for (volume) */
 
        return (0);
@@ -1306,7 +1327,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1316,7 +1337,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
        if (host->cfg_volume_perf == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_volume_perf->interval.interval + host->cfg_volume_perf->interval.last_read) > now)
                return (0);
 
@@ -1328,13 +1349,13 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
        data = na_server_invoke_elem (host->srv, host->cfg_volume_perf->query);
        if (na_results_status (data) != NA_OK)
        {
-               ERROR ("netapp plugin: cna_query_volume_perf: na_server_invoke_elem failed: %s",
-                               na_results_reason (data));
+               ERROR ("netapp plugin: cna_query_volume_perf: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
                na_elem_free (data);
                return (-1);
        }
 
-       status = cna_handle_volume_perf_data (host->name, host->cfg_volume_perf, data);
+       status = cna_handle_volume_perf_data (host->name, host->cfg_volume_perf, data, host->interval);
 
        if (status == 0)
                host->cfg_volume_perf->interval.last_read = now;
@@ -1345,7 +1366,7 @@ static int cna_query_volume_perf (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <VolumeUsage /> */
 static int cna_submit_volume_usage_data (const char *hostname, /* {{{ */
-               cfg_volume_usage_t *cfg_volume)
+               cfg_volume_usage_t *cfg_volume, int interval)
 {
        data_volume_usage_t *v;
 
@@ -1384,8 +1405,8 @@ static int cna_submit_volume_usage_data (const char *hostname, /* {{{ */
                        else
                        {
                                ERROR ("netapp plugin: (norm_used = %"PRIu64") < (snap_norm_used = "
-                                               "%"PRIu64"). Invalidating both.",
-                                               norm_used, snap_norm_used);
+                                               "%"PRIu64") for host %s. Invalidating both.",
+                                               norm_used, snap_norm_used, hostname);
                                v->flags &= ~(HAVE_VOLUME_USAGE_NORM_USED | HAVE_VOLUME_USAGE_SNAP_USED);
                        }
                }
@@ -1393,32 +1414,32 @@ static int cna_submit_volume_usage_data (const char *hostname, /* {{{ */
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_NORM_FREE))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "free",
-                                       (double) norm_free, /* timestamp = */ 0);
+                                       (double) norm_free, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SIS_SAVED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "sis_saved",
-                                       (double) sis_saved, /* timestamp = */ 0);
+                                       (double) sis_saved, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_NORM_USED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "used",
-                                       (double) norm_used, /* timestamp = */ 0);
+                                       (double) norm_used, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_RSVD))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_reserved",
-                                       (double) snap_reserve_free, /* timestamp = */ 0);
+                                       (double) snap_reserve_free, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_USED | HAVE_VOLUME_USAGE_SNAP_RSVD))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_reserve_used",
-                                       (double) snap_reserve_used, /* timestamp = */ 0);
+                                       (double) snap_reserve_used, /* timestamp = */ 0, interval);
 
                if (HAS_ALL_FLAGS (v->flags, HAVE_VOLUME_USAGE_SNAP_USED))
                        submit_double (hostname, /* plugin instance = */ plugin_instance,
                                        "df_complex", "snap_normal_used",
-                                       (double) snap_norm_used, /* timestamp = */ 0);
+                                       (double) snap_norm_used, /* timestamp = */ 0, interval);
 
                /* Clear all the HAVE_* flags */
                v->flags &= ~HAVE_VOLUME_USAGE_ALL;
@@ -1435,7 +1456,7 @@ static int cna_change_volume_status (const char *hostname, /* {{{ */
        notification_t n;
 
        memset (&n, 0, sizeof (&n));
-       n.time = time (NULL);
+       n.time = cdtime ();
        sstrncpy (n.host, hostname, sizeof (n.host));
        sstrncpy (n.plugin, "netapp", sizeof (n.plugin));
        sstrncpy (n.plugin_instance, v->name, sizeof (n.plugin_instance));
@@ -1470,8 +1491,8 @@ static void cna_handle_volume_snap_usage(const host_config_t *host, /* {{{ */
                                cna_change_volume_status (host->name, v);
                } else {
                        ERROR ("netapp plugin: cna_handle_volume_snap_usage: na_server_invoke_elem for "
-                                       "volume \"%s\" failed with error %d: %s", v->name,
-                                       na_results_errno(data), na_results_reason(data));
+                                       "volume \"%s\" on host %s failed with error %d: %s", v->name,
+                                       host->name, na_results_errno(data), na_results_reason(data));
                }
                na_elem_free(data);
                return;
@@ -1484,7 +1505,8 @@ static void cna_handle_volume_snap_usage(const host_config_t *host, /* {{{ */
        if (elem_snapshots == NULL)
        {
                ERROR ("netapp plugin: cna_handle_volume_snap_usage: "
-                               "na_elem_child (\"snapshots\") failed.");
+                               "na_elem_child (\"snapshots\") failed "
+                               "for host %s.", host->name);
                na_elem_free(data);
                return;
        }
@@ -1518,7 +1540,8 @@ static int cna_handle_volume_usage_data (const host_config_t *host, /* {{{ */
        if (elem_volumes == NULL)
        {
                ERROR ("netapp plugin: cna_handle_volume_usage_data: "
-                               "na_elem_child (\"volumes\") failed.");
+                               "na_elem_child (\"volumes\") failed "
+                               "for host %s.", host->name);
                return (-1);
        }
 
@@ -1643,7 +1666,7 @@ static int cna_handle_volume_usage_data (const host_config_t *host, /* {{{ */
                } /* }}} end of 32-bit workaround */
        } /* for (elem_volume) */
 
-       return (cna_submit_volume_usage_data (host->name, cfg_volume));
+       return (cna_submit_volume_usage_data (host->name, cfg_volume, host->interval));
 } /* }}} int cna_handle_volume_usage_data */
 
 static int cna_setup_volume_usage (cfg_volume_usage_t *cvu) /* {{{ */
@@ -1668,7 +1691,7 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1678,7 +1701,7 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
        if (host->cfg_volume_usage == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_volume_usage->interval.interval + host->cfg_volume_usage->interval.last_read) > now)
                return (0);
 
@@ -1690,8 +1713,8 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
        data = na_server_invoke_elem(host->srv, host->cfg_volume_usage->query);
        if (na_results_status (data) != NA_OK)
        {
-               ERROR ("netapp plugin: cna_query_volume_usage: na_server_invoke_elem failed: %s",
-                               na_results_reason (data));
+               ERROR ("netapp plugin: cna_query_volume_usage: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
                na_elem_free (data);
                return (-1);
        }
@@ -1707,7 +1730,7 @@ static int cna_query_volume_usage (host_config_t *host) /* {{{ */
 
 /* Data corresponding to <System /> */
 static int cna_handle_system_data (const char *hostname, /* {{{ */
-               cfg_system_t *cfg_system, na_elem_t *data)
+               cfg_system_t *cfg_system, na_elem_t *data, int interval)
 {
        na_elem_t *instances;
        na_elem_t *counter;
@@ -1719,15 +1742,16 @@ static int cna_handle_system_data (const char *hostname, /* {{{ */
        uint32_t counter_flags = 0;
 
        const char *instance;
-       time_t timestamp;
+       cdtime_t timestamp;
        
-       timestamp = (time_t) na_child_get_uint64 (data, "timestamp", 0);
+       timestamp = cna_child_get_cdtime (data);
 
        instances = na_elem_child(na_elem_child (data, "instances"), "instance-data");
        if (instances == NULL)
        {
                ERROR ("netapp plugin: cna_handle_system_data: "
-                               "na_elem_child (\"instances\") failed.");
+                               "na_elem_child (\"instances\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -1735,7 +1759,8 @@ static int cna_handle_system_data (const char *hostname, /* {{{ */
        if (instance == NULL)
        {
                ERROR ("netapp plugin: cna_handle_system_data: "
-                               "na_child_get_string (\"name\") failed.");
+                               "na_child_get_string (\"name\") failed "
+                               "for host %s.", hostname);
                return (-1);
        }
 
@@ -1777,27 +1802,27 @@ static int cna_handle_system_data (const char *hostname, /* {{{ */
                                && (value > 0) && (strlen(name) > 4)
                                && (!strcmp(name + strlen(name) - 4, "_ops"))) {
                        submit_counter (hostname, instance, "disk_ops_complex", name,
-                                       (counter_t) value, timestamp);
+                                       (counter_t) value, timestamp, interval);
                }
        } /* for (counter) */
 
        if ((cfg_system->flags & CFG_SYSTEM_DISK)
                        && (HAS_ALL_FLAGS (counter_flags, 0x01 | 0x02)))
                submit_two_counters (hostname, instance, "disk_octets", NULL,
-                               disk_read, disk_written, timestamp);
+                               disk_read, disk_written, timestamp, interval);
                                
        if ((cfg_system->flags & CFG_SYSTEM_NET)
                        && (HAS_ALL_FLAGS (counter_flags, 0x04 | 0x08)))
                submit_two_counters (hostname, instance, "if_octets", NULL,
-                               net_recv, net_sent, timestamp);
+                               net_recv, net_sent, timestamp, interval);
 
        if ((cfg_system->flags & CFG_SYSTEM_CPU)
                        && (HAS_ALL_FLAGS (counter_flags, 0x10 | 0x20)))
        {
                submit_counter (hostname, instance, "cpu", "system",
-                               cpu_busy, timestamp);
+                               cpu_busy, timestamp, interval);
                submit_counter (hostname, instance, "cpu", "idle",
-                               cpu_total - cpu_busy, timestamp);
+                               cpu_total - cpu_busy, timestamp, interval);
        }
 
        return (0);
@@ -1826,7 +1851,7 @@ static int cna_query_system (host_config_t *host) /* {{{ */
 {
        na_elem_t *data;
        int status;
-       time_t now;
+       cdtime_t now;
 
        if (host == NULL)
                return (EINVAL);
@@ -1835,7 +1860,7 @@ static int cna_query_system (host_config_t *host) /* {{{ */
        if (host->cfg_system == NULL)
                return (0);
 
-       now = time (NULL);
+       now = cdtime ();
        if ((host->cfg_system->interval.interval + host->cfg_system->interval.last_read) > now)
                return (0);
 
@@ -1847,13 +1872,13 @@ static int cna_query_system (host_config_t *host) /* {{{ */
        data = na_server_invoke_elem(host->srv, host->cfg_system->query);
        if (na_results_status (data) != NA_OK)
        {
-               ERROR ("netapp plugin: cna_query_system: na_server_invoke_elem failed: %s",
-                               na_results_reason (data));
+               ERROR ("netapp plugin: cna_query_system: na_server_invoke_elem failed for host %s: %s",
+                               host->name, na_results_reason (data));
                na_elem_free (data);
                return (-1);
        }
 
-       status = cna_handle_system_data (host->name, host->cfg_system, data);
+       status = cna_handle_system_data (host->name, host->cfg_system, data, host->interval);
 
        if (status == 0)
                host->cfg_system->interval.last_read = now;
@@ -1892,23 +1917,12 @@ static int cna_config_bool_to_flag (const oconfig_item_t *ci, /* {{{ */
 static int cna_config_get_interval (const oconfig_item_t *ci, /* {{{ */
                cna_interval_t *out_interval)
 {
-       time_t tmp;
-
-       if ((ci == NULL) || (out_interval == NULL))
-               return (EINVAL);
-
-       if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
-       {
-               WARNING ("netapp plugin: The `Interval' option needs exactly one numeric argument.");
-               return (-1);
-       }
+       cdtime_t tmp = 0;
+       int status;
 
-       tmp = (time_t) (ci->values[0].value.number + .5);
-       if (tmp < 1)
-       {
-               WARNING ("netapp plugin: The `Interval' option needs a positive integer argument.");
-               return (-1);
-       }
+       status = cf_util_get_cdtime (ci, &tmp);
+       if (status != 0)
+               return (status);
 
        out_interval->interval = tmp;
        out_interval->last_read = 0;
@@ -2408,11 +2422,7 @@ static host_config_t *cna_config_host (const oconfig_item_t *ci) /* {{{ */
                } else if (!strcasecmp(item->key, "Password")) {
                        status = cf_util_get_string (item, &host->password);
                } else if (!strcasecmp(item->key, "Interval")) {
-                       if (item->values_num != 1 || item->values[0].type != OCONFIG_TYPE_NUMBER || item->values[0].value.number != (int) item->values[0].value.number || item->values[0].value.number < 2) {
-                               WARNING("netapp plugin: \"Interval\" of host %s needs exactly one integer argument.", ci->values[0].value.string);
-                               continue;
-                       }
-                       host->interval = item->values[0].value.number;
+                       status = cf_util_get_cdtime (item, &host->interval);
                } else if (!strcasecmp(item->key, "WAFL")) {
                        cna_config_wafl(host, item);
                } else if (!strcasecmp(item->key, "Disks")) {
@@ -2543,14 +2553,13 @@ static int cna_config (oconfig_item_t *ci) { /* {{{ */
 
                        ssnprintf (cb_name, sizeof (cb_name), "netapp-%s", host->name);
 
-                       memset (&interval, 0, sizeof (interval));
-                       interval.tv_sec = host->interval;
+                       CDTIME_T_TO_TIMESPEC (host->interval, &interval);
 
                        memset (&ud, 0, sizeof (ud));
                        ud.data = host;
                        ud.free_func = (void (*) (void *)) free_host_config;
 
-                       plugin_register_complex_read (cb_name,
+                       plugin_register_complex_read (/* group = */ NULL, cb_name,
                                        /* callback  = */ cna_read, 
                                        /* interval  = */ (host->interval > 0) ? &interval : NULL,
                                        /* user data = */ &ud);