correct unit for pool.latency_ms

proxysql/datadog_checks/proxysql/queries.py

@@ -139,7 +139,7 @@
     'name': 'stats_mysql_connection_pool',
     # Need explicit selections as some columns are unusable.
     'query': 'SELECT hostgroup, srv_host, srv_port, status, ConnUsed, ConnFree, ConnOK, ConnERR, Queries, '
-    'Bytes_data_sent, Bytes_data_recv, Latency_us FROM stats_mysql_connection_pool',
+    'Bytes_data_sent, Bytes_data_recv, (Latency_us/1000.0) as Latency_ms, Latency_us FROM stats_mysql_connection_pool',
     'columns': [
         # the hostgroup in which the backend server belongs. Note that a single backend server can belong to more
         # than one hostgroup
@@ -178,7 +178,11 @@
         # OK/ERR packets, fields' description, etc)
         {'name': 'pool.bytes_data_recv', 'type': 'rate'},
         # the currently ping time in microseconds, as reported from Monitor
+        # Latency_ms is a ProxySQL typo fixed in ProxySQL 1.3.3; it has been aptly renamed to Latency_us.
+        # See: https://github.com/sysown/proxysql/issues/882
         {'name': 'pool.latency_ms', 'type': 'gauge'},
+        # the currently ping time in microseconds, as reported from Monitor
+        {'name': 'pool.latency_us', 'type': 'gauge'},
     ],
 }
 

proxysql/metadata.csv

@@ -56,6 +56,7 @@ proxysql.pool.queries,gauge,,query,second,The number of queries routed towards t
 proxysql.pool.bytes_data_sent,gauge,,byte,second,The amount of data sent to the backend.,0,proxysql,connection_pool_bytes_sent
 proxysql.pool.bytes_data_recv,gauge,,byte,second,The amount of data received from the backend.,0,proxysql,connection_pool_bytes_received
 proxysql.pool.latency_ms,gauge,,millisecond,,"The current ping time as reported from Monitor.",-1,proxysql,connection_pool_backend_latency
+proxysql.pool.latency_us,gauge,,microsecond,,"The current ping time as reported from Monitor.",-1,proxysql,connection_pool_backend_latency
 proxysql.memory.sqlite3_memory_bytes,gauge,,byte,,Memory used by the embedded SQLite.,0,proxysql,sqlite_memory
 proxysql.memory.jemalloc_resident,gauge,,byte,,Bytes in physically resident data pages mapped by the allocator.,0,proxysql,jemalloc_resident_memory
 proxysql.memory.jemalloc_active,gauge,,byte,,Bytes in pages allocated by the application.,0,proxysql,jemalloc_active_memory

proxysql/tests/common.py

@@ -72,6 +72,7 @@
     'proxysql.pool.bytes_data_sent',
     'proxysql.pool.bytes_data_recv',
     'proxysql.pool.latency_ms',
+    'proxysql.pool.latency_us',
 )
 
 USER_TAGS_METRICS = (