Merge remote-tracking branch 'github/pr/1845'
[collectd.git] / src / mysql.c
index 419a154..6ba3005 100644 (file)
@@ -28,6 +28,7 @@
  **/
 
 #include "collectd.h"
+
 #include "common.h"
 #include "plugin.h"
 #include "configfile.h"
@@ -53,6 +54,7 @@ struct mysql_database_s /* {{{ */
        _Bool master_stats;
        _Bool slave_stats;
        _Bool innodb_stats;
+       _Bool wsrep_stats;
 
        _Bool slave_notif;
        _Bool slave_io_running;
@@ -103,7 +105,6 @@ static int mysql_config_database (oconfig_item_t *ci) /* {{{ */
 {
        mysql_database_t *db;
        int status = 0;
-       int i;
 
        if ((ci->values_num != 1)
            || (ci->values[0].type != OCONFIG_TYPE_STRING))
@@ -143,7 +144,7 @@ static int mysql_config_database (oconfig_item_t *ci) /* {{{ */
        assert (db->instance != NULL);
 
        /* Fill the `mysql_database_t' structure.. */
-       for (i = 0; i < ci->children_num; i++)
+       for (int i = 0; i < ci->children_num; i++)
        {
                oconfig_item_t *child = ci->children + i;
 
@@ -178,6 +179,8 @@ static int mysql_config_database (oconfig_item_t *ci) /* {{{ */
                        status = cf_util_get_boolean (child, &db->slave_notif);
                else if (strcasecmp ("InnodbStats", child->key) == 0)
                        status = cf_util_get_boolean (child, &db->innodb_stats);
+               else if (strcasecmp ("WsrepStats", child->key) == 0)
+                       status = cf_util_get_boolean (child, &db->wsrep_stats);
                else
                {
                        WARNING ("mysql plugin: Option `%s' not allowed here.", child->key);
@@ -221,13 +224,11 @@ static int mysql_config_database (oconfig_item_t *ci) /* {{{ */
 
 static int mysql_config (oconfig_item_t *ci) /* {{{ */
 {
-       int i;
-
        if (ci == NULL)
                return (EINVAL);
 
        /* Fill the `mysql_database_t' structure.. */
-       for (i = 0; i < ci->children_num; i++)
+       for (int i = 0; i < ci->children_num; i++)
        {
                oconfig_item_t *child = ci->children + i;
 
@@ -579,40 +580,12 @@ static int mysql_read_innodb_stats (mysql_database_t *db, MYSQL *con)
                { "lock_row_lock_current_waits",     "mysql_locks",  DS_TYPE_DERIVE },
                { "buffer_pool_size",                "bytes",        DS_TYPE_GAUGE },
 
-               { "buffer_pool_reads",               "operations",   DS_TYPE_DERIVE },
-               { "buffer_pool_read_requests",       "operations",   DS_TYPE_DERIVE },
-               { "buffer_pool_write_requests",      "operations",   DS_TYPE_DERIVE },
-               { "buffer_pool_wait_free",           "operations",   DS_TYPE_DERIVE },
-               { "buffer_pool_read_ahead",          "operations",   DS_TYPE_DERIVE },
-               { "buffer_pool_read_ahead_evicted",  "operations",   DS_TYPE_DERIVE },
-
-               { "buffer_pool_pages_total",         "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_pages_misc",          "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_pages_data",          "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_bytes_data",          "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_pages_dirty",         "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_bytes_dirty",         "gauge",        DS_TYPE_GAUGE },
-               { "buffer_pool_pages_free",          "gauge",        DS_TYPE_GAUGE },
-
-               { "buffer_pages_created",            "operations",   DS_TYPE_DERIVE },
-               { "buffer_pages_written",            "operations",   DS_TYPE_DERIVE },
-               { "buffer_pages_read",               "operations",   DS_TYPE_DERIVE },
-               { "buffer_data_reads",               "operations",   DS_TYPE_DERIVE },
-               { "buffer_data_written",             "operations",   DS_TYPE_DERIVE },
-
-               { "os_data_reads",                   "operations",   DS_TYPE_DERIVE },
-               { "os_data_writes",                  "operations",   DS_TYPE_DERIVE },
-               { "os_data_fsyncs",                  "operations",   DS_TYPE_DERIVE },
                { "os_log_bytes_written",            "operations",   DS_TYPE_DERIVE },
-               { "os_log_fsyncs",                   "operations",   DS_TYPE_DERIVE },
                { "os_log_pending_fsyncs",           "operations",   DS_TYPE_DERIVE },
                { "os_log_pending_writes",           "operations",   DS_TYPE_DERIVE },
 
                { "trx_rseg_history_len",            "gauge",        DS_TYPE_GAUGE },
 
-               { "log_waits",                       "operations",   DS_TYPE_DERIVE },
-               { "log_write_requests",              "operations",   DS_TYPE_DERIVE },
-               { "log_writes",                      "operations",   DS_TYPE_DERIVE },
                { "adaptive_hash_searches",          "operations",   DS_TYPE_DERIVE },
 
                { "file_num_open_files",             "gauge",        DS_TYPE_GAUGE },
@@ -627,9 +600,6 @@ static int mysql_read_innodb_stats (mysql_database_t *db, MYSQL *con)
                { "ibuf_size",                       "bytes",        DS_TYPE_GAUGE },
 
                { "innodb_activity_count",           "gauge",        DS_TYPE_GAUGE },
-               { "innodb_dblwr_writes",             "operations",   DS_TYPE_DERIVE },
-               { "innodb_dblwr_pages_written",      "operations",   DS_TYPE_DERIVE },
-               { "innodb_dblwr_page_size",          "gauge",        DS_TYPE_GAUGE },
 
                { "innodb_rwlock_s_spin_waits",      "operations",   DS_TYPE_DERIVE },
                { "innodb_rwlock_x_spin_waits",      "operations",   DS_TYPE_DERIVE },
@@ -684,6 +654,93 @@ static int mysql_read_innodb_stats (mysql_database_t *db, MYSQL *con)
        return (0);
 }
 
+static int mysql_read_wsrep_stats (mysql_database_t *db, MYSQL *con)
+{
+       MYSQL_RES *res;
+       MYSQL_ROW  row;
+
+       const char *query;
+       struct {
+               const char *key;
+               const char *type;
+               int ds_type;
+       } metrics[] = {
+
+               { "wsrep_apply_oooe",                "operations",   DS_TYPE_DERIVE },
+               { "wsrep_apply_oool",                "operations",   DS_TYPE_DERIVE },
+               { "wsrep_causal_reads",              "operations",   DS_TYPE_DERIVE },
+               { "wsrep_commit_oooe",               "operations",   DS_TYPE_DERIVE },
+               { "wsrep_commit_oool",               "operations",   DS_TYPE_DERIVE },
+               { "wsrep_flow_control_recv",         "operations",   DS_TYPE_DERIVE },
+               { "wsrep_flow_control_sent",         "operations",   DS_TYPE_DERIVE },
+               { "wsrep_flow_control_paused",       "operations",   DS_TYPE_DERIVE },
+               { "wsrep_local_bf_aborts",           "operations",   DS_TYPE_DERIVE },
+               { "wsrep_local_cert_failures",       "operations",   DS_TYPE_DERIVE },
+               { "wsrep_local_commits",             "operations",   DS_TYPE_DERIVE },
+               { "wsrep_local_replays",             "operations",   DS_TYPE_DERIVE },
+               { "wsrep_received",                  "operations",   DS_TYPE_DERIVE },
+               { "wsrep_replicated",                "operations",   DS_TYPE_DERIVE },
+
+               { "wsrep_received_bytes",            "total_bytes",  DS_TYPE_DERIVE },
+               { "wsrep_replicated_bytes",          "total_bytes",  DS_TYPE_DERIVE },
+
+               { "wsrep_apply_window",              "gauge",        DS_TYPE_GAUGE },
+               { "wsrep_commit_window",             "gauge",        DS_TYPE_GAUGE },
+
+               { "wsrep_cluster_size",              "gauge",        DS_TYPE_GAUGE },
+               { "wsrep_cert_deps_distance",        "gauge",        DS_TYPE_GAUGE },
+
+               { "wsrep_local_recv_queue",          "queue_length", DS_TYPE_GAUGE },
+               { "wsrep_local_send_queue",          "queue_length", DS_TYPE_GAUGE },
+
+               { NULL,                              NULL,           0}
+
+       };
+
+       query = "SHOW GLOBAL STATUS LIKE 'wsrep_%'";
+
+       res = exec_query (con, query);
+       if (res == NULL)
+               return (-1);
+
+       row = mysql_fetch_row (res);
+       if (row == NULL)
+       {
+               ERROR ("mysql plugin: Failed to get wsrep statistics: "
+                       "`%s' did not return any rows.", query);
+               mysql_free_result (res);
+               return (-1);
+       }
+
+       while ((row = mysql_fetch_row (res)))
+       {
+               int i;
+               char *key;
+               unsigned long long val;
+
+               key = row[0];
+               val = atoll (row[1]);
+
+               for (i = 0; metrics[i].key != NULL && strcmp(metrics[i].key, key) != 0; i++)
+                       ;
+
+               if (metrics[i].key == NULL)
+                       continue;
+
+               switch (metrics[i].ds_type) {
+                       case DS_TYPE_GAUGE:
+                               gauge_submit(metrics[i].type, key, (gauge_t)val, db);
+                               break;
+                       case DS_TYPE_DERIVE:
+                               derive_submit(metrics[i].type, key, (derive_t)val, db);
+                               break;
+               }
+       }
+
+       mysql_free_result(res);
+       return (0);
+} /* mysql_read_wsrep_stats */
+
 static int mysql_read (user_data_t *ud)
 {
        mysql_database_t *db;
@@ -825,6 +882,8 @@ static int mysql_read (user_data_t *ud)
                                counter_submit ("mysql_bpool_counters", "read_requests", val, db);
                        else if (strcmp (key, "Innodb_buffer_pool_reads") == 0)
                                counter_submit ("mysql_bpool_counters", "reads", val, db);
+                       else if (strcmp (key, "Innodb_buffer_pool_wait_free") == 0)
+                               counter_submit ("mysql_bpool_counters", "wait_free", val, db);
                        else if (strcmp (key, "Innodb_buffer_pool_write_requests") == 0)
                                counter_submit ("mysql_bpool_counters", "write_requests", val, db);
                        else if (strcmp (key, "Innodb_buffer_pool_bytes_data") == 0)
@@ -849,6 +908,8 @@ static int mysql_read (user_data_t *ud)
                                counter_submit ("mysql_innodb_dblwr", "writes", val, db);
                        else if (strcmp (key, "Innodb_dblwr_pages_written") == 0)
                                counter_submit ("mysql_innodb_dblwr", "written", val, db);
+                       else if (strcmp (key, "Innodb_dblwr_page_size") == 0)
+                               gauge_submit ("mysql_innodb_dblwr", "page_size", val, db);
 
                        /* log */
                        else if (strcmp (key, "Innodb_log_waits") == 0)
@@ -952,6 +1013,9 @@ static int mysql_read (user_data_t *ud)
        if ((db->slave_stats) || (db->slave_notif))
                mysql_read_slave_stats (db, con);
 
+       if (db->wsrep_stats)
+               mysql_read_wsrep_stats (db, con);
+
        return (0);
 } /* int mysql_read */