Merge branch 'collectd-5.7' into collectd-5.8
[collectd.git] / src / virt.c
index 692088c..174db2f 100644 (file)
@@ -17,6 +17,7 @@
  *
  * Authors:
  *   Richard W.M. Jones <rjones@redhat.com>
+ *   Przemyslaw Szczerbik <przemyslawx.szczerbik@intel.com>
  **/
 
 #include "collectd.h"
 
 #ifdef LIBVIR_CHECK_VERSION
 
+#if LIBVIR_CHECK_VERSION(0, 9, 2)
+#define HAVE_DOM_REASON 1
+#endif
+
 #if LIBVIR_CHECK_VERSION(0, 9, 5)
 #define HAVE_BLOCK_STATS_FLAGS 1
+#define HAVE_DOM_REASON_PAUSED_SHUTTING_DOWN 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(0, 9, 10)
+#define HAVE_DISK_ERR 1
 #endif
 
 #if LIBVIR_CHECK_VERSION(0, 9, 11)
 #define HAVE_CPU_STATS 1
+#define HAVE_DOM_STATE_PMSUSPENDED 1
+#define HAVE_DOM_REASON_RUNNING_WAKEUP 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 0, 1)
+#define HAVE_DOM_REASON_PAUSED_SNAPSHOT 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 1, 1)
+#define HAVE_DOM_REASON_PAUSED_CRASHED 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 9)
+#define HAVE_JOB_STATS 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 10)
+#define HAVE_DOM_REASON_CRASHED 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 11)
+#define HAVE_FS_INFO 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 2, 15)
+#define HAVE_DOM_REASON_PAUSED_STARTING_UP 1
+#endif
+
+#if LIBVIR_CHECK_VERSION(1, 3, 3)
+#define HAVE_PERF_STATS 1
+#define HAVE_DOM_REASON_POSTCOPY 1
 #endif
 
 #endif /* LIBVIR_CHECK_VERSION */
@@ -67,15 +108,146 @@ static const char *config_keys[] = {"Connection",
 
                                     "Instances",
                                     "ExtraStats",
-
                                     NULL};
+
+const char *domain_states[] = {
+        [VIR_DOMAIN_NOSTATE] = "no state",
+        [VIR_DOMAIN_RUNNING] = "the domain is running",
+        [VIR_DOMAIN_BLOCKED] = "the domain is blocked on resource",
+        [VIR_DOMAIN_PAUSED] = "the domain is paused by user",
+        [VIR_DOMAIN_SHUTDOWN] = "the domain is being shut down",
+        [VIR_DOMAIN_SHUTOFF] = "the domain is shut off",
+        [VIR_DOMAIN_CRASHED] = "the domain is crashed",
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+        [VIR_DOMAIN_PMSUSPENDED] =
+            "the domain is suspended by guest power management",
+#endif
+};
+
+#ifdef HAVE_DOM_REASON
+#define DOMAIN_STATE_REASON_MAX_SIZE 20
+const char *domain_reasons[][DOMAIN_STATE_REASON_MAX_SIZE] = {
+        [VIR_DOMAIN_NOSTATE][VIR_DOMAIN_NOSTATE_UNKNOWN] =
+            "the reason is unknown",
+
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_UNKNOWN] =
+            "the reason is unknown",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_BOOTED] =
+            "normal startup from boot",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_MIGRATED] =
+            "migrated from another host",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_RESTORED] =
+            "restored from a state file",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_FROM_SNAPSHOT] =
+            "restored from snapshot",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_UNPAUSED] =
+            "returned from paused state",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_MIGRATION_CANCELED] =
+            "returned from migration",
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_SAVE_CANCELED] =
+            "returned from failed save process",
+#ifdef HAVE_DOM_REASON_RUNNING_WAKEUP
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_WAKEUP] =
+            "returned from pmsuspended due to wakeup event",
+#endif
+#ifdef HAVE_DOM_REASON_CRASHED
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_CRASHED] =
+            "resumed from crashed",
+#endif
+#ifdef HAVE_DOM_REASON_POSTCOPY
+        [VIR_DOMAIN_RUNNING][VIR_DOMAIN_RUNNING_POSTCOPY] =
+            "running in post-copy migration mode",
+#endif
+
+        [VIR_DOMAIN_BLOCKED][VIR_DOMAIN_BLOCKED_UNKNOWN] =
+            "the reason is unknown",
+
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_UNKNOWN] =
+            "the reason is unknown",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_USER] = "paused on user request",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_MIGRATION] =
+            "paused for offline migration",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SAVE] = "paused for save",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_DUMP] =
+            "paused for offline core dump",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_IOERROR] =
+            "paused due to a disk I/O error",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_WATCHDOG] =
+            "paused due to a watchdog event",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_FROM_SNAPSHOT] =
+            "paused after restoring from snapshot",
+#ifdef HAVE_DOM_REASON_PAUSED_SHUTTING_DOWN
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SHUTTING_DOWN] =
+            "paused during shutdown process",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_SNAPSHOT
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_SNAPSHOT] =
+            "paused while creating a snapshot",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_CRASHED
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_CRASHED] =
+            "paused due to a guest crash",
+#endif
+#ifdef HAVE_DOM_REASON_PAUSED_STARTING_UP
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_STARTING_UP] =
+            "the domain is being started",
+#endif
+#ifdef HAVE_DOM_REASON_POSTCOPY
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_POSTCOPY] =
+            "paused for post-copy migration",
+        [VIR_DOMAIN_PAUSED][VIR_DOMAIN_PAUSED_POSTCOPY_FAILED] =
+            "paused after failed post-copy",
+#endif
+
+        [VIR_DOMAIN_SHUTDOWN][VIR_DOMAIN_SHUTDOWN_UNKNOWN] =
+            "the reason is unknown",
+        [VIR_DOMAIN_SHUTDOWN][VIR_DOMAIN_SHUTDOWN_USER] =
+            "shutting down on user request",
+
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_UNKNOWN] =
+            "the reason is unknown",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_SHUTDOWN] = "normal shutdown",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_DESTROYED] = "forced poweroff",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_CRASHED] = "domain crashed",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_MIGRATED] =
+            "migrated to another host",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_SAVED] = "saved to a file",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_FAILED] =
+            "domain failed to start",
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_FROM_SNAPSHOT] =
+            "restored from a snapshot which was taken while domain was shutoff",
+
+        [VIR_DOMAIN_CRASHED][VIR_DOMAIN_CRASHED_UNKNOWN] =
+            "the reason is unknown",
+#ifdef VIR_DOMAIN_CRASHED_PANICKED
+        [VIR_DOMAIN_CRASHED][VIR_DOMAIN_CRASHED_PANICKED] = "domain panicked",
+#endif
+
+#ifdef HAVE_DOM_STATE_PMSUSPENDED
+        [VIR_DOMAIN_PMSUSPENDED][VIR_DOMAIN_PMSUSPENDED_UNKNOWN] =
+            "the reason is unknown",
+#endif
+};
+#endif /* HAVE_DOM_REASON */
+
 #define NR_CONFIG_KEYS ((sizeof config_keys / sizeof config_keys[0]) - 1)
+#define NANOSEC_IN_SEC 1e9
+
+#define GET_STATS(_f, _name, ...)                                              \
+  do {                                                                         \
+    status = _f(__VA_ARGS__);                                                  \
+    if (status != 0)                                                           \
+      ERROR(PLUGIN_NAME ": Failed to get " _name);                             \
+  } while (0)
 
 /* Connection. */
 static virConnectPtr conn = 0;
 static char *conn_string = NULL;
 static c_complain_t conn_complain = C_COMPLAIN_INIT_STATIC;
 
+/* Node information required for %CPU */
+static virNodeInfo nodeinfo;
+
 /* Seconds between list refreshes, 0 disables completely. */
 static int interval = 60;
 
@@ -103,9 +275,14 @@ struct interface_device {
   char *number;     /* interface device number */
 };
 
+typedef struct domain_s {
+  virDomainPtr ptr;
+  virDomainInfo info;
+} domain_t;
+
 struct lv_read_state {
   /* Actual list of domains found on last refresh. */
-  virDomainPtr *domains;
+  domain_t *domains;
   int nr_domains;
 
   struct block_device *block_devices;
@@ -172,8 +349,29 @@ enum bd_field { target, source };
 enum if_field { if_address, if_name, if_number };
 
 /* ExtraStats */
-#define EX_STATS_MAX_FIELDS 8
-enum ex_stats { ex_stats_none = 0, ex_stats_disk = 1, ex_stats_pcpu = 2 };
+#define EX_STATS_MAX_FIELDS 15
+enum ex_stats {
+  ex_stats_none = 0,
+  ex_stats_disk = 1 << 0,
+  ex_stats_pcpu = 1 << 1,
+  ex_stats_cpu_util = 1 << 2,
+  ex_stats_domain_state = 1 << 3,
+#ifdef HAVE_PERF_STATS
+  ex_stats_perf = 1 << 4,
+#endif
+  ex_stats_vcpupin = 1 << 5,
+#ifdef HAVE_DISK_ERR
+  ex_stats_disk_err = 1 << 6,
+#endif
+#ifdef HAVE_FS_INFO
+  ex_stats_fs_info = 1 << 7,
+#endif
+#ifdef HAVE_JOB_STATS
+  ex_stats_job_stats_completed = 1 << 8,
+  ex_stats_job_stats_background = 1 << 9,
+#endif
+};
+
 static unsigned int extra_stats = ex_stats_none;
 
 struct ex_stats_item {
@@ -181,7 +379,25 @@ struct ex_stats_item {
   enum ex_stats flag;
 };
 static const struct ex_stats_item ex_stats_table[] = {
-    {"disk", ex_stats_disk}, {"pcpu", ex_stats_pcpu}, {NULL, ex_stats_none},
+    {"disk", ex_stats_disk},
+    {"pcpu", ex_stats_pcpu},
+    {"cpu_util", ex_stats_cpu_util},
+    {"domain_state", ex_stats_domain_state},
+#ifdef HAVE_PERF_STATS
+    {"perf", ex_stats_perf},
+#endif
+    {"vcpupin", ex_stats_vcpupin},
+#ifdef HAVE_DISK_ERR
+    {"disk_err", ex_stats_disk_err},
+#endif
+#ifdef HAVE_FS_INFO
+    {"fs_info", ex_stats_fs_info},
+#endif
+#ifdef HAVE_JOB_STATS
+    {"job_stats_completed", ex_stats_job_stats_completed},
+    {"job_stats_background", ex_stats_job_stats_background},
+#endif
+    {NULL, ex_stats_none},
 };
 
 /* BlockDeviceFormatBasename */
@@ -228,12 +444,10 @@ static void init_block_info(struct lv_block_info *binfo) {
 #ifdef HAVE_BLOCK_STATS_FLAGS
 
 #define GET_BLOCK_INFO_VALUE(NAME, FIELD)                                      \
-  do {                                                                         \
-    if (!strcmp(param[i].field, NAME)) {                                       \
-      binfo->FIELD = param[i].value.l;                                         \
-      continue;                                                                \
-    }                                                                          \
-  } while (0)
+  if (!strcmp(param[i].field, NAME)) {                                         \
+    binfo->FIELD = param[i].value.l;                                           \
+    continue;                                                                  \
+  }
 
 static int get_block_info(struct lv_block_info *binfo,
                           virTypedParameterPtr param, int nparams) {
@@ -298,7 +512,8 @@ static int lv_domain_info(virDomainPtr dom, struct lv_info *info) {
 
   ret = virDomainGetCPUStats(dom, param, nparams, -1, 1, 0); // total stats.
   if (ret < 0) {
-    virTypedParamsFree(param, nparams);
+    virTypedParamsClear(param, nparams);
+    sfree(param);
     VIRT_ERROR(conn, "getting the disk params values");
     return -1;
   }
@@ -310,7 +525,8 @@ static int lv_domain_info(virDomainPtr dom, struct lv_info *info) {
       info->total_syst_cpu_time = param[i].value.ul;
   }
 
-  virTypedParamsFree(param, nparams);
+  virTypedParamsClear(param, nparams);
+  sfree(param);
 #endif /* HAVE_CPU_STATS */
 
   return 0;
@@ -388,6 +604,34 @@ static void init_value_list(value_list_t *vl, virDomainPtr dom) {
 
 } /* void init_value_list */
 
+static int init_notif(notification_t *notif, const virDomainPtr domain,
+                      int severity, const char *msg, const char *type,
+                      const char *type_instance) {
+  value_list_t vl = VALUE_LIST_INIT;
+
+  if (!notif) {
+    ERROR(PLUGIN_NAME ": init_notif: NULL pointer");
+    return -1;
+  }
+
+  init_value_list(&vl, domain);
+  notification_init(notif, severity, msg, vl.host, vl.plugin,
+                    vl.plugin_instance, type, type_instance);
+  notif->time = cdtime();
+  return 0;
+}
+
+static void submit_notif(const virDomainPtr domain, int severity,
+                         const char *msg, const char *type,
+                         const char *type_instance) {
+  notification_t notif;
+
+  init_notif(&notif, domain, severity, msg, type, type_instance);
+  plugin_dispatch_notification(&notif);
+  if (notif.meta)
+    plugin_notification_meta_free(notif.meta);
+}
+
 static void submit(virDomainPtr dom, char const *type,
                    char const *type_instance, value_t *values,
                    size_t values_len) {
@@ -404,7 +648,7 @@ static void submit(virDomainPtr dom, char const *type,
   plugin_dispatch_values(&vl);
 }
 
-static void memory_submit(gauge_t value, virDomainPtr dom) {
+static void memory_submit(virDomainPtr dom, gauge_t value) {
   submit(dom, "memory", "total", &(value_t){.gauge = value}, 1);
 }
 
@@ -412,9 +656,10 @@ static void memory_stats_submit(gauge_t value, virDomainPtr dom,
                                 int tag_index) {
   static const char *tags[] = {"swap_in",        "swap_out", "major_fault",
                                "minor_fault",    "unused",   "available",
-                               "actual_balloon", "rss"};
+                               "actual_balloon", "rss",      "usable",
+                               "last_update"};
 
-  if ((tag_index < 0) || (tag_index >= STATIC_ARRAY_SIZE(tags))) {
+  if ((tag_index < 0) || (tag_index >= (int)STATIC_ARRAY_SIZE(tags))) {
     ERROR("virt plugin: Array index out of bounds: tag_index = %d", tag_index);
     return;
   }
@@ -439,26 +684,74 @@ static void pcpu_submit(virDomainPtr dom, struct lv_info *info) {
 #endif /* HAVE_CPU_STATS */
 }
 
-static void cpu_submit(unsigned long long value, virDomainPtr dom,
-                       const char *type) {
-  submit(dom, type, NULL, &(value_t){.derive = (derive_t)value}, 1);
+static double cpu_ns_to_percent(unsigned int node_cpus,
+                                unsigned long long cpu_time_old,
+                                unsigned long long cpu_time_new) {
+  double percent = 0.0;
+  unsigned long long cpu_time_diff = 0;
+  double time_diff_sec = CDTIME_T_TO_DOUBLE(plugin_get_interval());
+
+  if (node_cpus != 0 && time_diff_sec != 0 && cpu_time_old != 0) {
+    cpu_time_diff = cpu_time_new - cpu_time_old;
+    percent = ((double)(100 * cpu_time_diff)) /
+              (time_diff_sec * node_cpus * NANOSEC_IN_SEC);
+  }
+
+  DEBUG(PLUGIN_NAME ": node_cpus=%u cpu_time_old=%llu cpu_time_new=%llu"
+                    "cpu_time_diff=%llu time_diff_sec=%f percent=%f",
+        node_cpus, cpu_time_old, cpu_time_new, cpu_time_diff, time_diff_sec,
+        percent);
+
+  return percent;
+}
+
+static void cpu_submit(const domain_t *dom, unsigned long long cpuTime_new) {
+
+  if (!dom)
+    return;
+
+  if (extra_stats & ex_stats_cpu_util) {
+    /* Computing %CPU requires 2 samples of cpuTime */
+    if (dom->info.cpuTime != 0 && cpuTime_new != 0) {
+
+      submit(dom->ptr, "percent", "virt_cpu_total",
+             &(value_t){.gauge = cpu_ns_to_percent(
+                            nodeinfo.cpus, dom->info.cpuTime, cpuTime_new)},
+             1);
+    }
+  }
+
+  submit(dom->ptr, "virt_cpu_total", NULL, &(value_t){.derive = cpuTime_new},
+         1);
 }
 
 static void vcpu_submit(derive_t value, virDomainPtr dom, int vcpu_nr,
                         const char *type) {
   char type_instance[DATA_MAX_NAME_LEN];
 
-  ssnprintf(type_instance, sizeof(type_instance), "%d", vcpu_nr);
-
+  snprintf(type_instance, sizeof(type_instance), "%d", vcpu_nr);
   submit(dom, type, type_instance, &(value_t){.derive = value}, 1);
 }
 
 static void disk_submit(struct lv_block_info *binfo, virDomainPtr dom,
-                        const char *type_instance) {
-  char flush_type_instance[DATA_MAX_NAME_LEN];
+                        const char *dev) {
+  char *dev_copy = strdup(dev);
+  const char *type_instance = dev_copy;
+
+  if (!dev_copy)
+    return;
 
-  ssnprintf(flush_type_instance, sizeof(flush_type_instance), "flush-%s",
-            type_instance);
+  if (blockdevice_format_basename && blockdevice_format == source)
+    type_instance = basename(dev_copy);
+
+  if (!type_instance) {
+    sfree(dev_copy);
+    return;
+  }
+
+  char flush_type_instance[DATA_MAX_NAME_LEN];
+  snprintf(flush_type_instance, sizeof(flush_type_instance), "flush-%s",
+           type_instance);
 
   if ((binfo->bi.rd_req != -1) && (binfo->bi.wr_req != -1))
     submit_derive2("disk_ops", (derive_t)binfo->bi.rd_req,
@@ -482,6 +775,8 @@ static void disk_submit(struct lv_block_info *binfo, virDomainPtr dom,
              &(value_t){.derive = value}, 1);
     }
   }
+
+  sfree(dev_copy);
 }
 
 static unsigned int parse_ex_stats_flags(char **exstats, int numexstats) {
@@ -494,11 +789,71 @@ static unsigned int parse_ex_stats_flags(char **exstats, int numexstats) {
         ex_stats_flags |= ex_stats_table[j].flag;
         break;
       }
+
+      if (ex_stats_table[j + 1].name == NULL) {
+        ERROR(PLUGIN_NAME ": Unmatched ExtraStats option: %s", exstats[i]);
+      }
     }
   }
   return ex_stats_flags;
 }
 
+static void domain_state_submit(virDomainPtr dom, int state, int reason) {
+
+  if ((state < 0) || (state >= STATIC_ARRAY_SIZE(domain_states))) {
+    ERROR(PLUGIN_NAME ": Array index out of bounds: state=%d", state);
+    return;
+  }
+
+  char msg[DATA_MAX_NAME_LEN];
+  const char *state_str = domain_states[state];
+#ifdef HAVE_DOM_REASON
+  if ((reason < 0) || (reason >= STATIC_ARRAY_SIZE(domain_reasons[0]))) {
+    ERROR(PLUGIN_NAME ": Array index out of bounds: reason=%d", reason);
+    return;
+  }
+
+  const char *reason_str = domain_reasons[state][reason];
+  /* Array size for domain reasons is fixed, but different domain states can
+   * have different number of reasons. We need to check if reason was
+   * successfully parsed */
+  if (!reason_str) {
+    ERROR(PLUGIN_NAME ": Invalid reason (%d) for domain state: %s", reason,
+          state_str);
+    return;
+  }
+#else
+  const char *reason_str = "N/A";
+#endif
+
+  snprintf(msg, sizeof(msg), "Domain state: %s. Reason: %s", state_str,
+           reason_str);
+
+  int severity;
+  switch (state) {
+  case VIR_DOMAIN_NOSTATE:
+  case VIR_DOMAIN_RUNNING:
+  case VIR_DOMAIN_SHUTDOWN:
+  case VIR_DOMAIN_SHUTOFF:
+    severity = NOTIF_OKAY;
+    break;
+  case VIR_DOMAIN_BLOCKED:
+  case VIR_DOMAIN_PAUSED:
+#ifdef DOM_STATE_PMSUSPENDED
+  case VIR_DOMAIN_PMSUSPENDED:
+#endif
+    severity = NOTIF_WARNING;
+    break;
+  case VIR_DOMAIN_CRASHED:
+    severity = NOTIF_FAILURE;
+    break;
+  default:
+    ERROR(PLUGIN_NAME ": Unrecognized domain state (%d)", state);
+    return;
+  }
+  submit_notif(dom, severity, msg, "domain_state", NULL);
+}
+
 static int lv_config(const char *key, const char *value) {
   if (virInitialize() != 0)
     return 1;
@@ -701,6 +1056,16 @@ static int lv_config(const char *key, const char *value) {
           strsplit(localvalue, exstats, STATIC_ARRAY_SIZE(exstats));
       extra_stats = parse_ex_stats_flags(exstats, numexstats);
       sfree(localvalue);
+
+#ifdef HAVE_JOB_STATS
+      if ((extra_stats & ex_stats_job_stats_completed) &&
+          (extra_stats & ex_stats_job_stats_background)) {
+        ERROR(PLUGIN_NAME " plugin: Invalid job stats configuration. Only one "
+                          "type of job statistics can be collected at the same "
+                          "time");
+        return 1;
+      }
+#endif
     }
   }
 
@@ -710,12 +1075,23 @@ static int lv_config(const char *key, const char *value) {
 
 static int lv_connect(void) {
   if (conn == NULL) {
-    /* `conn_string == NULL' is acceptable. */
-    conn = virConnectOpenReadOnly(conn_string);
+/* `conn_string == NULL' is acceptable */
+#ifdef HAVE_FS_INFO
+    /* virDomainGetFSInfo requires full read-write access connection */
+    if (extra_stats & ex_stats_fs_info)
+      conn = virConnectOpen(conn_string);
+    else
+#endif
+      conn = virConnectOpenReadOnly(conn_string);
     if (conn == NULL) {
       c_complain(LOG_ERR, &conn_complain,
                  PLUGIN_NAME " plugin: Unable to connect: "
-                             "virConnectOpenReadOnly failed.");
+                             "virConnectOpen failed.");
+      return -1;
+    }
+    int status = virNodeGetInfo(conn, &nodeinfo);
+    if (status != 0) {
+      ERROR(PLUGIN_NAME ": virNodeGetInfo failed");
       return -1;
     }
   }
@@ -734,37 +1110,473 @@ static void lv_disconnect(void) {
 static int lv_domain_block_info(virDomainPtr dom, const char *path,
                                 struct lv_block_info *binfo) {
 #ifdef HAVE_BLOCK_STATS_FLAGS
-  virTypedParameterPtr params = NULL;
   int nparams = 0;
-  int rc = -1;
-  int ret = virDomainBlockStatsFlags(dom, path, NULL, &nparams, 0);
-  if (ret < 0 || nparams == 0) {
+  if (virDomainBlockStatsFlags(dom, path, NULL, &nparams, 0) < 0 ||
+      nparams <= 0) {
     VIRT_ERROR(conn, "getting the disk params count");
     return -1;
   }
 
-  params = calloc(nparams, sizeof(virTypedParameter));
+  virTypedParameterPtr params = calloc((size_t)nparams, sizeof(*params));
   if (params == NULL) {
     ERROR("virt plugin: alloc(%i) for block=%s parameters failed.", nparams,
           path);
     return -1;
   }
-  ret = virDomainBlockStatsFlags(dom, path, params, &nparams, 0);
-  if (ret < 0) {
+
+  int rc = -1;
+  if (virDomainBlockStatsFlags(dom, path, params, &nparams, 0) < 0) {
     VIRT_ERROR(conn, "getting the disk params values");
-    goto done;
+  } else {
+    rc = get_block_info(binfo, params, nparams);
   }
 
-  rc = get_block_info(binfo, params, nparams);
-
-done:
-  virTypedParamsFree(params, nparams);
+  virTypedParamsClear(params, nparams);
+  sfree(params);
   return rc;
 #else
   return virDomainBlockStats(dom, path, &(binfo->bi), sizeof(binfo->bi));
 #endif /* HAVE_BLOCK_STATS_FLAGS */
 }
 
+#ifdef HAVE_PERF_STATS
+static void perf_submit(virDomainStatsRecordPtr stats) {
+  for (int i = 0; i < stats->nparams; ++i) {
+    /* Replace '.' with '_' in event field to match other metrics' naming
+     * convention */
+    char *c = strchr(stats->params[i].field, '.');
+    if (c)
+      *c = '_';
+    submit(stats->dom, "perf", stats->params[i].field,
+           &(value_t){.derive = stats->params[i].value.ul}, 1);
+  }
+}
+
+static int get_perf_events(virDomainPtr domain) {
+  virDomainStatsRecordPtr *stats = NULL;
+  /* virDomainListGetStats requires a NULL terminated list of domains */
+  virDomainPtr domain_array[] = {domain, NULL};
+
+  int status =
+      virDomainListGetStats(domain_array, VIR_DOMAIN_STATS_PERF, &stats, 0);
+  if (status == -1) {
+    ERROR("virt plugin: virDomainListGetStats failed with status %i.", status);
+    return status;
+  }
+
+  for (int i = 0; i < status; ++i)
+    perf_submit(stats[i]);
+
+  virDomainStatsRecordListFree(stats);
+  return 0;
+}
+#endif /* HAVE_PERF_STATS */
+
+static void vcpu_pin_submit(virDomainPtr dom, int max_cpus, int vcpu,
+                            unsigned char *cpu_maps, int cpu_map_len) {
+  for (int cpu = 0; cpu < max_cpus; ++cpu) {
+    char type_instance[DATA_MAX_NAME_LEN];
+    _Bool is_set = VIR_CPU_USABLE(cpu_maps, cpu_map_len, vcpu, cpu) ? 1 : 0;
+
+    snprintf(type_instance, sizeof(type_instance), "vcpu_%d-cpu_%d", vcpu, cpu);
+    submit(dom, "cpu_affinity", type_instance, &(value_t){.gauge = is_set}, 1);
+  }
+}
+
+static int get_vcpu_stats(virDomainPtr domain, unsigned short nr_virt_cpu) {
+  int max_cpus = VIR_NODEINFO_MAXCPUS(nodeinfo);
+  int cpu_map_len = VIR_CPU_MAPLEN(max_cpus);
+
+  virVcpuInfoPtr vinfo = calloc(nr_virt_cpu, sizeof(vinfo[0]));
+  if (vinfo == NULL) {
+    ERROR(PLUGIN_NAME " plugin: malloc failed.");
+    return -1;
+  }
+
+  unsigned char *cpumaps = calloc(nr_virt_cpu, cpu_map_len);
+  if (cpumaps == NULL) {
+    ERROR(PLUGIN_NAME " plugin: malloc failed.");
+    sfree(vinfo);
+    return -1;
+  }
+
+  int status =
+      virDomainGetVcpus(domain, vinfo, nr_virt_cpu, cpumaps, cpu_map_len);
+  if (status < 0) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
+          status);
+    sfree(cpumaps);
+    sfree(vinfo);
+    return status;
+  }
+
+  for (int i = 0; i < nr_virt_cpu; ++i) {
+    vcpu_submit(vinfo[i].cpuTime, domain, vinfo[i].number, "virt_vcpu");
+    if (extra_stats & ex_stats_vcpupin)
+      vcpu_pin_submit(domain, max_cpus, i, cpumaps, cpu_map_len);
+  }
+
+  sfree(cpumaps);
+  sfree(vinfo);
+  return 0;
+}
+
+#ifdef HAVE_DOM_REASON
+static int get_domain_state(virDomainPtr domain) {
+  int domain_state = 0;
+  int domain_reason = 0;
+
+  int status = virDomainGetState(domain, &domain_state, &domain_reason, 0);
+  if (status != 0) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetState failed with status %i.",
+          status);
+    return status;
+  }
+
+  domain_state_submit(domain, domain_state, domain_reason);
+  return status;
+}
+#endif /* HAVE_DOM_REASON */
+
+static int get_memory_stats(virDomainPtr domain) {
+  virDomainMemoryStatPtr minfo =
+      calloc(VIR_DOMAIN_MEMORY_STAT_NR, sizeof(virDomainMemoryStatStruct));
+  if (minfo == NULL) {
+    ERROR("virt plugin: malloc failed.");
+    return -1;
+  }
+
+  int mem_stats =
+      virDomainMemoryStats(domain, minfo, VIR_DOMAIN_MEMORY_STAT_NR, 0);
+  if (mem_stats < 0) {
+    ERROR("virt plugin: virDomainMemoryStats failed with mem_stats %i.",
+          mem_stats);
+    sfree(minfo);
+    return mem_stats;
+  }
+
+  for (int i = 0; i < mem_stats; i++)
+    memory_stats_submit((gauge_t)minfo[i].val * 1024, domain, minfo[i].tag);
+
+  sfree(minfo);
+  return 0;
+}
+
+#ifdef HAVE_DISK_ERR
+static void disk_err_submit(virDomainPtr domain,
+                            virDomainDiskErrorPtr disk_err) {
+  submit(domain, "disk_error", disk_err->disk,
+         &(value_t){.gauge = disk_err->error}, 1);
+}
+
+static int get_disk_err(virDomainPtr domain) {
+  /* Get preferred size of disk errors array */
+  int disk_err_count = virDomainGetDiskErrors(domain, NULL, 0, 0);
+  if (disk_err_count == -1) {
+    ERROR(PLUGIN_NAME
+          " plugin: failed to get preferred size of disk errors array");
+    return -1;
+  }
+
+  DEBUG(PLUGIN_NAME
+        " plugin: preferred size of disk errors array: %d for domain %s",
+        disk_err_count, virDomainGetName(domain));
+  virDomainDiskError disk_err[disk_err_count];
+
+  disk_err_count = virDomainGetDiskErrors(domain, disk_err, disk_err_count, 0);
+  if (disk_err_count == -1) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetDiskErrors failed with status %d",
+          disk_err_count);
+    return -1;
+  }
+
+  DEBUG(PLUGIN_NAME " plugin: detected %d disk errors in domain %s",
+        disk_err_count, virDomainGetName(domain));
+
+  for (int i = 0; i < disk_err_count; ++i) {
+    disk_err_submit(domain, &disk_err[i]);
+    sfree(disk_err[i].disk);
+  }
+
+  return 0;
+}
+#endif /* HAVE_DISK_ERR */
+
+static int get_block_stats(struct block_device *block_dev) {
+
+  if (!block_dev) {
+    ERROR(PLUGIN_NAME " plugin: get_block_stats NULL pointer");
+    return -1;
+  }
+
+  struct lv_block_info binfo;
+  init_block_info(&binfo);
+
+  if (lv_domain_block_info(block_dev->dom, block_dev->path, &binfo) < 0) {
+    ERROR(PLUGIN_NAME " plugin: lv_domain_block_info failed");
+    return -1;
+  }
+
+  disk_submit(&binfo, block_dev->dom, block_dev->path);
+  return 0;
+}
+
+#ifdef HAVE_FS_INFO
+
+#define NM_ADD_ITEM(_fun, _name, _val)                                         \
+  do {                                                                         \
+    ret = _fun(&notif, _name, _val);                                           \
+    if (ret != 0) {                                                            \
+      ERROR(PLUGIN_NAME " plugin: failed to add notification metadata");       \
+      goto cleanup;                                                            \
+    }                                                                          \
+  } while (0)
+
+#define NM_ADD_STR_ITEMS(_items, _size)                                        \
+  do {                                                                         \
+    for (int _i = 0; _i < _size; ++_i) {                                       \
+      DEBUG(PLUGIN_NAME                                                        \
+            " plugin: Adding notification metadata name=%s value=%s",          \
+            _items[_i].name, _items[_i].value);                                \
+      NM_ADD_ITEM(plugin_notification_meta_add_string, _items[_i].name,        \
+                  _items[_i].value);                                           \
+    }                                                                          \
+  } while (0)
+
+static int fs_info_notify(virDomainPtr domain, virDomainFSInfoPtr fs_info) {
+  notification_t notif;
+  int ret = 0;
+
+  /* Local struct, just for the purpose of this function. */
+  typedef struct nm_str_item_s {
+    const char *name;
+    const char *value;
+  } nm_str_item_t;
+
+  nm_str_item_t fs_dev_alias[fs_info->ndevAlias];
+  nm_str_item_t fs_str_items[] = {
+      {.name = "mountpoint", .value = fs_info->mountpoint},
+      {.name = "name", .value = fs_info->name},
+      {.name = "fstype", .value = fs_info->fstype}};
+
+  for (int i = 0; i < fs_info->ndevAlias; ++i) {
+    fs_dev_alias[i].name = "devAlias";
+    fs_dev_alias[i].value = fs_info->devAlias[i];
+  }
+
+  init_notif(&notif, domain, NOTIF_OKAY, "File system information",
+             "file_system", NULL);
+  NM_ADD_STR_ITEMS(fs_str_items, STATIC_ARRAY_SIZE(fs_str_items));
+  NM_ADD_ITEM(plugin_notification_meta_add_unsigned_int, "ndevAlias",
+              fs_info->ndevAlias);
+  NM_ADD_STR_ITEMS(fs_dev_alias, fs_info->ndevAlias);
+
+  plugin_dispatch_notification(&notif);
+
+cleanup:
+  if (notif.meta)
+    plugin_notification_meta_free(notif.meta);
+  return ret;
+}
+
+#undef RETURN_ON_ERR
+#undef NM_ADD_STR_ITEMS
+
+static int get_fs_info(virDomainPtr domain) {
+  virDomainFSInfoPtr *fs_info = NULL;
+  int ret = 0;
+
+  int mount_points_cnt = virDomainGetFSInfo(domain, &fs_info, 0);
+  if (mount_points_cnt == -1) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetFSInfo failed: %d",
+          mount_points_cnt);
+    return mount_points_cnt;
+  }
+
+  for (int i = 0; i < mount_points_cnt; ++i) {
+    if (fs_info_notify(domain, fs_info[i]) != 0) {
+      ERROR(PLUGIN_NAME " plugin: failed to send file system notification "
+                        "for mount point %s",
+            fs_info[i]->mountpoint);
+      ret = -1;
+    }
+    virDomainFSInfoFree(fs_info[i]);
+  }
+
+  sfree(fs_info);
+  return ret;
+}
+
+#endif /* HAVE_FS_INFO */
+
+#ifdef HAVE_JOB_STATS
+static void job_stats_submit(virDomainPtr domain, virTypedParameterPtr param) {
+  value_t vl = {0};
+
+  if (param->type == VIR_TYPED_PARAM_INT)
+    vl.derive = param->value.i;
+  else if (param->type == VIR_TYPED_PARAM_UINT)
+    vl.derive = param->value.ui;
+  else if (param->type == VIR_TYPED_PARAM_LLONG)
+    vl.derive = param->value.l;
+  else if (param->type == VIR_TYPED_PARAM_ULLONG)
+    vl.derive = param->value.ul;
+  else if (param->type == VIR_TYPED_PARAM_DOUBLE)
+    vl.derive = param->value.d;
+  else if (param->type == VIR_TYPED_PARAM_BOOLEAN)
+    vl.derive = param->value.b;
+  else if (param->type == VIR_TYPED_PARAM_STRING) {
+    submit_notif(domain, NOTIF_OKAY, param->value.s, "job_stats", param->field);
+    return;
+  } else {
+    ERROR(PLUGIN_NAME " plugin: unrecognized virTypedParameterType");
+    return;
+  }
+
+  submit(domain, "job_stats", param->field, &vl, 1);
+}
+
+static int get_job_stats(virDomainPtr domain) {
+  int ret = 0;
+  int job_type = 0;
+  int nparams = 0;
+  virTypedParameterPtr params = NULL;
+  int flags = (extra_stats & ex_stats_job_stats_completed)
+                  ? VIR_DOMAIN_JOB_STATS_COMPLETED
+                  : 0;
+
+  ret = virDomainGetJobStats(domain, &job_type, &params, &nparams, flags);
+  if (ret != 0) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetJobStats failed: %d", ret);
+    return ret;
+  }
+
+  DEBUG(PLUGIN_NAME " plugin: job_type=%d nparams=%d", job_type, nparams);
+
+  for (int i = 0; i < nparams; ++i) {
+    DEBUG(PLUGIN_NAME " plugin: param[%d] field=%s type=%d", i, params[i].field,
+          params[i].type);
+    job_stats_submit(domain, &params[i]);
+  }
+
+  virTypedParamsFree(params, nparams);
+  return ret;
+}
+#endif /* HAVE_JOB_STATS */
+
+static int get_domain_metrics(domain_t *domain) {
+  struct lv_info info;
+
+  if (!domain || !domain->ptr) {
+    ERROR(PLUGIN_NAME ": get_domain_metrics: NULL pointer");
+    return -1;
+  }
+
+  init_lv_info(&info);
+  int status = lv_domain_info(domain->ptr, &info);
+  if (status != 0) {
+    ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
+          status);
+    return -1;
+  }
+
+  if (extra_stats & ex_stats_domain_state) {
+#ifdef HAVE_DOM_REASON
+    /* At this point we already know domain's state from virDomainGetInfo call,
+     * however it doesn't provide a reason for entering particular state.
+     * We need to get it from virDomainGetState.
+     */
+    GET_STATS(get_domain_state, "domain reason", domain->ptr);
+#else
+    /* virDomainGetState is not available. Submit 0, which corresponds to
+     * unknown reason. */
+    domain_state_submit(domain->ptr, info.di.state, 0);
+#endif
+  }
+
+  /* Gather remaining stats only for running domains */
+  if (info.di.state != VIR_DOMAIN_RUNNING)
+    return 0;
+
+  pcpu_submit(domain->ptr, &info);
+  cpu_submit(domain, info.di.cpuTime);
+
+  memory_submit(domain->ptr, (gauge_t)info.di.memory * 1024);
+
+  GET_STATS(get_vcpu_stats, "vcpu stats", domain->ptr, info.di.nrVirtCpu);
+  GET_STATS(get_memory_stats, "memory stats", domain->ptr);
+
+#ifdef HAVE_PERF_STATS
+  if (extra_stats & ex_stats_perf)
+    GET_STATS(get_perf_events, "performance monitoring events", domain->ptr);
+#endif
+
+#ifdef HAVE_FS_INFO
+  if (extra_stats & ex_stats_fs_info)
+    GET_STATS(get_fs_info, "file system info", domain->ptr);
+#endif
+
+#ifdef HAVE_DISK_ERR
+  if (extra_stats & ex_stats_disk_err)
+    GET_STATS(get_disk_err, "disk errors", domain->ptr);
+#endif
+
+#ifdef HAVE_JOB_STATS
+  if (extra_stats &
+      (ex_stats_job_stats_completed | ex_stats_job_stats_background))
+    GET_STATS(get_job_stats, "job stats", domain->ptr);
+#endif
+
+  /* Update cached virDomainInfo. It has to be done after cpu_submit */
+  memcpy(&domain->info, &info.di, sizeof(domain->info));
+  return 0;
+}
+
+static int get_if_dev_stats(struct interface_device *if_dev) {
+  virDomainInterfaceStatsStruct stats = {0};
+  char *display_name = NULL;
+
+  if (!if_dev) {
+    ERROR(PLUGIN_NAME " plugin: get_if_dev_stats: NULL pointer");
+    return -1;
+  }
+
+  switch (interface_format) {
+  case if_address:
+    display_name = if_dev->address;
+    break;
+  case if_number:
+    display_name = if_dev->number;
+    break;
+  case if_name:
+  default:
+    display_name = if_dev->path;
+  }
+
+  if (virDomainInterfaceStats(if_dev->dom, if_dev->path, &stats,
+                              sizeof(stats)) != 0) {
+    ERROR(PLUGIN_NAME " plugin: virDomainInterfaceStats failed");
+    return -1;
+  }
+
+  if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
+    submit_derive2("if_octets", (derive_t)stats.rx_bytes,
+                   (derive_t)stats.tx_bytes, if_dev->dom, display_name);
+
+  if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
+    submit_derive2("if_packets", (derive_t)stats.rx_packets,
+                   (derive_t)stats.tx_packets, if_dev->dom, display_name);
+
+  if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
+    submit_derive2("if_errors", (derive_t)stats.rx_errs,
+                   (derive_t)stats.tx_errs, if_dev->dom, display_name);
+
+  if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
+    submit_derive2("if_dropped", (derive_t)stats.rx_drop,
+                   (derive_t)stats.tx_drop, if_dev->dom, display_name);
+  return 0;
+}
+
 static int lv_read(user_data_t *ud) {
   time_t t;
   struct lv_read_instance *inst = NULL;
@@ -798,7 +1610,7 @@ static int lv_read(user_data_t *ud) {
 
 #if 0
     for (int i = 0; i < nr_domains; ++i)
-        fprintf (stderr, "domain %s\n", virDomainGetName (domains[i]));
+        fprintf (stderr, "domain %s\n", virDomainGetName (state->domains[i].ptr));
     for (int i = 0; i < nr_block_devices; ++i)
         fprintf  (stderr, "block device %d %s:%s\n",
                   i, virDomainGetName (block_devices[i].dom),
@@ -809,139 +1621,33 @@ static int lv_read(user_data_t *ud) {
                  interface_devices[i].path);
 #endif
 
-  /* Get CPU usage, memory, VCPU usage for each domain. */
+  /* Get domains' metrics */
   for (int i = 0; i < state->nr_domains; ++i) {
-    struct lv_info info;
-    virVcpuInfoPtr vinfo = NULL;
-    virDomainMemoryStatPtr minfo = NULL;
-    int status;
-
-    init_lv_info(&info);
-    status = lv_domain_info(state->domains[i], &info);
-    if (status != 0) {
-      ERROR(PLUGIN_NAME " plugin: virDomainGetInfo failed with status %i.",
-            status);
-      continue;
-    }
-
-    pcpu_submit(state->domains[i], &info);
-    cpu_submit(info.di.cpuTime, state->domains[i], "virt_cpu_total");
-    memory_submit((gauge_t)info.di.memory * 1024, state->domains[i]);
-
-    vinfo = malloc(info.di.nrVirtCpu * sizeof(vinfo[0]));
-    if (vinfo == NULL) {
-      ERROR(PLUGIN_NAME " plugin: malloc failed.");
-      continue;
-    }
-
-    status = virDomainGetVcpus(state->domains[i], vinfo, info.di.nrVirtCpu,
-                               /* cpu map = */ NULL, /* cpu map length = */ 0);
-    if (status < 0) {
-      ERROR(PLUGIN_NAME " plugin: virDomainGetVcpus failed with status %i.",
-            status);
-      sfree(vinfo);
-      continue;
-    }
-
-    for (int j = 0; j < info.di.nrVirtCpu; ++j)
-      vcpu_submit(vinfo[j].cpuTime, state->domains[i], vinfo[j].number,
-                  "virt_vcpu");
-
-    sfree(vinfo);
-
-    minfo =
-        malloc(VIR_DOMAIN_MEMORY_STAT_NR * sizeof(virDomainMemoryStatStruct));
-    if (minfo == NULL) {
-      ERROR("virt plugin: malloc failed.");
-      continue;
-    }
-
-    status = virDomainMemoryStats(state->domains[i], minfo,
-                                  VIR_DOMAIN_MEMORY_STAT_NR, 0);
-
-    if (status < 0) {
-      ERROR("virt plugin: virDomainMemoryStats failed with status %i.", status);
-      sfree(minfo);
-      continue;
-    }
-
-    for (int j = 0; j < status; j++) {
-      memory_stats_submit((gauge_t)minfo[j].val * 1024, state->domains[i],
-                          minfo[j].tag);
-    }
-
-    sfree(minfo);
+    int status = get_domain_metrics(&state->domains[i]);
+    if (status != 0)
+      ERROR(PLUGIN_NAME " failed to get metrics for domain=%s",
+            virDomainGetName(state->domains[i].ptr));
   }
 
   /* Get block device stats for each domain. */
   for (int i = 0; i < state->nr_block_devices; ++i) {
-    struct block_device *bdev = &(state->block_devices[i]);
-    struct lv_block_info binfo;
-    init_block_info(&binfo);
-
-    if (lv_domain_block_info(bdev->dom, bdev->path, &binfo) < 0)
-      continue;
-
-    char *type_instance = bdev->path;
-    char *path = NULL;
-    if (blockdevice_format_basename && blockdevice_format == source) {
-      path = strdup(bdev->path);
-      if (path == NULL) {
-        WARNING(PLUGIN_NAME
-                " plugin: error extracting the basename for '%s', skipped",
-                bdev->path);
-        continue;
-      }
-      type_instance = basename(path);
-    }
-
-    disk_submit(&binfo, bdev->dom, type_instance);
-
-    sfree(path);
-  } /* for (nr_block_devices) */
+    int status = get_block_stats(&state->block_devices[i]);
+    if (status != 0)
+      ERROR(PLUGIN_NAME
+            " failed to get stats for block device (%s) in domain %s",
+            state->block_devices[i].path,
+            virDomainGetName(state->domains[i].ptr));
+  }
 
   /* Get interface stats for each domain. */
   for (int i = 0; i < state->nr_interface_devices; ++i) {
-    struct _virDomainInterfaceStats stats;
-    char *display_name = NULL;
-
-    switch (interface_format) {
-    case if_address:
-      display_name = state->interface_devices[i].address;
-      break;
-    case if_number:
-      display_name = state->interface_devices[i].number;
-      break;
-    case if_name:
-    default:
-      display_name = state->interface_devices[i].path;
-    }
-
-    if (virDomainInterfaceStats(state->interface_devices[i].dom,
-                                state->interface_devices[i].path, &stats,
-                                sizeof stats) != 0)
-      continue;
-
-    if ((stats.rx_bytes != -1) && (stats.tx_bytes != -1))
-      submit_derive2("if_octets", (derive_t)stats.rx_bytes,
-                     (derive_t)stats.tx_bytes, state->interface_devices[i].dom,
-                     display_name);
-
-    if ((stats.rx_packets != -1) && (stats.tx_packets != -1))
-      submit_derive2("if_packets", (derive_t)stats.rx_packets,
-                     (derive_t)stats.tx_packets,
-                     state->interface_devices[i].dom, display_name);
-
-    if ((stats.rx_errs != -1) && (stats.tx_errs != -1))
-      submit_derive2("if_errors", (derive_t)stats.rx_errs,
-                     (derive_t)stats.tx_errs, state->interface_devices[i].dom,
-                     display_name);
-
-    if ((stats.rx_drop != -1) && (stats.tx_drop != -1))
-      submit_derive2("if_dropped", (derive_t)stats.rx_drop,
-                     (derive_t)stats.tx_drop, state->interface_devices[i].dom,
-                     display_name);
-  } /* for (nr_interface_devices) */
+    int status = get_if_dev_stats(&state->interface_devices[i]);
+    if (status != 0)
+      ERROR(PLUGIN_NAME
+            " failed to get interface stats for device (%s) in domain %s",
+            state->interface_devices[i].path,
+            virDomainGetName(state->interface_devices[i].dom));
+  }
 
   return 0;
 }
@@ -952,7 +1658,7 @@ static int lv_init_instance(size_t i, plugin_read_cb callback) {
 
   memset(lv_ud, 0, sizeof(*lv_ud));
 
-  ssnprintf(inst->tag, sizeof(inst->tag), "%s-%zu", PLUGIN_NAME, i);
+  snprintf(inst->tag, sizeof(inst->tag), "%s-%zu", PLUGIN_NAME, i);
   inst->id = i;
 
   user_data_t *ud = &(lv_ud->ud);
@@ -1012,8 +1718,8 @@ static int lv_domain_get_tag(xmlXPathContextPtr xpath_ctx, const char *dom_name,
     goto done;
   }
 
-  ssnprintf(xpath_str, sizeof(xpath_str), "/domain/metadata/%s:%s/text()",
-            METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_ELEMENT);
+  snprintf(xpath_str, sizeof(xpath_str), "/domain/metadata/%s:%s/text()",
+           METADATA_VM_PARTITION_PREFIX, METADATA_VM_PARTITION_ELEMENT);
   xpath_obj = xmlXPathEvalExpression((xmlChar *)xpath_str, xpath_ctx);
   if (xpath_obj == NULL) {
     ERROR(PLUGIN_NAME " plugin: xmlXPathEval(%s) failed on domain %s",
@@ -1086,6 +1792,18 @@ static int lv_instance_include_domain(struct lv_read_instance *inst,
   return 0;
 }
 
+/*
+  virConnectListAllDomains() appeared in 0.10.2
+  Note that LIBVIR_CHECK_VERSION appeared a year later, so
+  in some systems which actually have virConnectListAllDomains()
+  we can't detect this.
+ */
+#ifdef LIBVIR_CHECK_VERSION
+#if LIBVIR_CHECK_VERSION(0, 10, 2)
+#define HAVE_LIST_ALL_DOMAINS 1
+#endif
+#endif
+
 static int refresh_lists(struct lv_read_instance *inst) {
   struct lv_read_state *state = &inst->read_state;
   int n;
@@ -1099,6 +1817,11 @@ static int refresh_lists(struct lv_read_instance *inst) {
   lv_clean_read_state(state);
 
   if (n > 0) {
+#ifdef HAVE_LIST_ALL_DOMAINS
+    virDomainPtr *domains;
+    n = virConnectListAllDomains(conn, &domains,
+                                 VIR_CONNECT_LIST_DOMAINS_ACTIVE);
+#else
     int *domids;
 
     /* Get list of domains. */
@@ -1109,15 +1832,18 @@ static int refresh_lists(struct lv_read_instance *inst) {
     }
 
     n = virConnectListDomains(conn, domids, n);
+#endif
+
     if (n < 0) {
       VIRT_ERROR(conn, "reading list of domains");
+#ifndef HAVE_LIST_ALL_DOMAINS
       sfree(domids);
+#endif
       return -1;
     }
 
     /* Fetch each domain and add it to the list, unless ignore. */
     for (int i = 0; i < n; ++i) {
-      virDomainPtr dom = NULL;
       const char *name;
       char *xml = NULL;
       xmlDocPtr xml_doc = NULL;
@@ -1127,12 +1853,17 @@ static int refresh_lists(struct lv_read_instance *inst) {
       virDomainInfo info;
       int status;
 
+#ifdef HAVE_LIST_ALL_DOMAINS
+      virDomainPtr dom = domains[i];
+#else
+      virDomainPtr dom = NULL;
       dom = virDomainLookupByID(conn, domids[i]);
       if (dom == NULL) {
         VIRT_ERROR(conn, "virDomainLookupByID");
         /* Could be that the domain went away -- ignore it anyway. */
         continue;
       }
+#endif
 
       name = virDomainGetName(dom);
       if (name == NULL) {
@@ -1273,7 +2004,11 @@ static int refresh_lists(struct lv_read_instance *inst) {
       sfree(xml);
     }
 
+#ifdef HAVE_LIST_ALL_DOMAINS
+    sfree(domains);
+#else
     sfree(domids);
+#endif
   }
 
   DEBUG(PLUGIN_NAME " plugin#%s: refreshing"
@@ -1287,7 +2022,7 @@ static int refresh_lists(struct lv_read_instance *inst) {
 static void free_domains(struct lv_read_state *state) {
   if (state->domains) {
     for (int i = 0; i < state->nr_domains; ++i)
-      virDomainFree(state->domains[i]);
+      virDomainFree(state->domains[i].ptr);
     sfree(state->domains);
   }
   state->domains = NULL;
@@ -1295,7 +2030,7 @@ static void free_domains(struct lv_read_state *state) {
 }
 
 static int add_domain(struct lv_read_state *state, virDomainPtr dom) {
-  virDomainPtr *new_ptr;
+  domain_t *new_ptr;
   int new_size = sizeof(state->domains[0]) * (state->nr_domains + 1);
 
   if (state->domains)
@@ -1307,7 +2042,10 @@ static int add_domain(struct lv_read_state *state, virDomainPtr dom) {
     return -1;
 
   state->domains = new_ptr;
-  state->domains[state->nr_domains] = dom;
+  state->domains[state->nr_domains].ptr = dom;
+  memset(&state->domains[state->nr_domains].info, 0,
+         sizeof(state->domains[state->nr_domains].info));
+
   return state->nr_domains++;
 }
 
@@ -1410,13 +2148,13 @@ static int ignore_device_match(ignorelist_t *il, const char *domname,
   if ((domname == NULL) || (devpath == NULL))
     return 0;
 
-  n = sizeof(char) * (strlen(domname) + strlen(devpath) + 2);
+  n = strlen(domname) + strlen(devpath) + 2;
   name = malloc(n);
   if (name == NULL) {
     ERROR(PLUGIN_NAME " plugin: malloc failed.");
     return 0;
   }
-  ssnprintf(name, n, "%s:%s", domname, devpath);
+  snprintf(name, n, "%s:%s", domname, devpath);
   r = ignorelist_match(il, name);
   sfree(name);
   return r;