Merge pull request #3152 from rpv-tomsk/libvirt-memory-report
[collectd.git] / src / virt.c
index 1fdf45b..9cfdb05 100644 (file)
 #endif
 
 /*
-  virConnectListAllDomains() appeared in 0.10.2
-  Note that LIBVIR_CHECK_VERSION appeared a year later, so
-  in some systems which actually have virConnectListAllDomains()
+  virConnectListAllDomains() appeared in 0.10.2 (Sep 2012)
+  Note that LIBVIR_CHECK_VERSION appeared a year later (Dec 2013,
+  libvirt-1.2.0),
+  so in some systems which actually have virConnectListAllDomains()
   we can't detect this.
  */
 #if LIBVIR_CHECK_VERSION(0, 10, 2)
 #define HAVE_DOM_REASON_POSTCOPY 1
 #endif
 
+#if LIBVIR_CHECK_VERSION(4, 10, 0)
+#define HAVE_DOM_REASON_SHUTOFF_DAEMON 1
+#endif
 #endif /* LIBVIR_CHECK_VERSION */
 
 /* structure used for aggregating notification-thread data*/
@@ -300,6 +304,16 @@ static int map_domain_event_detail_to_reason(int event, int detail) {
     switch (detail) {
     case VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED: /* Guest finished shutdown
                                                 sequence */
+#ifdef LIBVIR_CHECK_VERSION
+#if LIBVIR_CHECK_VERSION(3, 4, 0)
+    case VIR_DOMAIN_EVENT_SHUTDOWN_GUEST: /* Domain finished shutting down after
+                                             request from the guest itself (e.g.
+                                             hardware-specific action) */
+    case VIR_DOMAIN_EVENT_SHUTDOWN_HOST:  /* Domain finished shutting down after
+                                             request from the host (e.g. killed
+                                             by a signal) */
+#endif
+#endif
       ret = VIR_DOMAIN_SHUTDOWN_USER;
       break;
     default:
@@ -425,6 +439,10 @@ const char *domain_reasons[][DOMAIN_STATE_REASON_MAX_SIZE] = {
             "domain failed to start",
         [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_FROM_SNAPSHOT] =
             "restored from a snapshot which was taken while domain was shutoff",
+#ifdef HAVE_DOM_REASON_SHUTOFF_DAEMON
+        [VIR_DOMAIN_SHUTOFF][VIR_DOMAIN_SHUTOFF_DAEMON] =
+            "daemon decides to kill domain during reconnection processing",
+#endif
 
         [VIR_DOMAIN_CRASHED][VIR_DOMAIN_CRASHED_UNKNOWN] =
             "the reason is unknown",
@@ -918,10 +936,10 @@ static void memory_submit(virDomainPtr dom, gauge_t value) {
 
 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",      "usable",
-                               "last_update"};
+  static const char *tags[] = {"swap_in",        "swap_out",   "major_fault",
+                               "minor_fault",    "unused",     "available",
+                               "actual_balloon", "rss",        "usable",
+                               "last_update",    "disk_caches"};
 
   if ((tag_index < 0) || (tag_index >= (int)STATIC_ARRAY_SIZE(tags))) {
     ERROR("virt plugin: Array index out of bounds: tag_index = %d", tag_index);
@@ -1647,16 +1665,7 @@ static int get_pcpu_stats(virDomainPtr dom) {
 #endif /* HAVE_CPU_STATS */
 
 #ifdef HAVE_DOM_REASON
-
-static void domain_state_submit(virDomainPtr dom, int state, int reason) {
-  value_t values[] = {
-      {.gauge = (gauge_t)state}, {.gauge = (gauge_t)reason},
-  };
-
-  submit(dom, "domain_state", NULL, values, STATIC_ARRAY_SIZE(values));
-}
-
-static int get_domain_state(virDomainPtr domain) {
+static int submit_domain_state(virDomainPtr domain) {
   int domain_state = 0;
   int domain_reason = 0;
 
@@ -1667,9 +1676,13 @@ static int get_domain_state(virDomainPtr domain) {
     return status;
   }
 
-  domain_state_submit(domain, domain_state, domain_reason);
+  value_t values[] = {
+      {.gauge = (gauge_t)domain_state}, {.gauge = (gauge_t)domain_reason},
+  };
 
-  return status;
+  submit(domain, "domain_state", NULL, values, STATIC_ARRAY_SIZE(values));
+
+  return 0;
 }
 
 #ifdef HAVE_LIST_ALL_DOMAINS
@@ -1684,8 +1697,7 @@ static int get_domain_state_notify(virDomainPtr domain) {
     return status;
   }
 
-  if (persistent_notification)
-    domain_state_submit_notif(domain, domain_state, domain_reason);
+  domain_state_submit_notif(domain, domain_state, domain_reason);
 
   return status;
 }
@@ -1709,8 +1721,42 @@ static int get_memory_stats(virDomainPtr domain) {
     return mem_stats;
   }
 
-  for (int i = 0; i < mem_stats; i++)
-    memory_stats_submit((gauge_t)minfo[i].val * 1024, domain, minfo[i].tag);
+  derive_t swap_in = -1;
+  derive_t swap_out = -1;
+  derive_t min_flt = -1;
+  derive_t maj_flt = -1;
+
+  for (int i = 0; i < mem_stats; i++) {
+    if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_SWAP_IN)
+      swap_in = minfo[i].val;
+    else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_SWAP_OUT)
+      swap_out = minfo[i].val;
+    else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_MINOR_FAULT)
+      min_flt = minfo[i].val;
+    else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_MAJOR_FAULT)
+      maj_flt = minfo[i].val;
+#ifdef LIBVIR_CHECK_VERSION
+#if LIBVIR_CHECK_VERSION(2, 1, 0)
+    else if (minfo[i].tag == VIR_DOMAIN_MEMORY_STAT_LAST_UPDATE)
+      /* Skip 'last_update' reporting as that is not memory but timestamp */
+      continue;
+#endif
+#endif
+    else
+      memory_stats_submit((gauge_t)minfo[i].val * 1024, domain, minfo[i].tag);
+  }
+
+  if (swap_in > 0 || swap_out > 0) {
+    submit(domain, "swap_io", "in", &(value_t){.gauge = swap_in}, 1);
+    submit(domain, "swap_io", "out", &(value_t){.gauge = swap_out}, 1);
+  }
+
+  if (min_flt > 0 || maj_flt > 0) {
+    value_t values[] = {
+        {.gauge = (gauge_t)min_flt}, {.gauge = (gauge_t)maj_flt},
+    };
+    submit(domain, "ps_pagefaults", NULL, values, STATIC_ARRAY_SIZE(values));
+  }
 
   sfree(minfo);
   return 0;
@@ -1955,7 +2001,7 @@ static int get_domain_metrics(domain_t *domain) {
      * 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);
+    GET_STATS(submit_domain_state, "domain reason", domain->ptr);
 #endif
   }
 
@@ -2258,8 +2304,11 @@ static int lv_read(user_data_t *ud) {
       return -1;
 
   /* Wait until inst#0 establish connection */
-  if (conn == NULL)
+  if (conn == NULL) {
+    DEBUG(PLUGIN_NAME " plugin#%s: Wait until inst#0 establish connection",
+          inst->tag);
     return 0;
+  }
 
   time_t t;
   time(&t);
@@ -2308,8 +2357,8 @@ static int lv_read(user_data_t *ud) {
     if (dom->active)
       status = get_domain_metrics(dom);
 #ifdef HAVE_DOM_REASON
-    else
-      status = get_domain_state(dom->ptr);
+    else if (extra_stats & ex_stats_domain_state)
+      status = submit_domain_state(dom->ptr);
 #endif
 
     if (status != 0)
@@ -2383,7 +2432,8 @@ static int lv_init(void) {
     return -1;
 
   if (!persistent_notification)
-    virt_notif_thread_init(&notif_thread);
+    if (virt_notif_thread_init(&notif_thread) != 0)
+      return -1;
 
   lv_connect();