Create host_summary.sql

Author: aadant

views/p_s/host_summary.sql

@@ -0,0 +1,106 @@
+/* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
+
+/*
+ * View: host_summary
+ *
+ * Summarizes statement activity, file IO and connections by host.
+ *
+ * mysql> select * from host_summary;
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ * | host | statements | statement_latency | statement_avg_latency | table_scans | file_ios | file_io_latency | current_connections | total_connections | unique_users |
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ * | hal1 |       2924 | 00:03:59.53       | 81.92 ms              |          82 |    54702 | 55.61 s         |                   1 |                 1 |            1 |
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ *
+ */
+
+CREATE OR REPLACE
+  ALGORITHM = TEMPTABLE
+  DEFINER = 'root'@'localhost'
+  SQL SECURITY INVOKER 
+VIEW host_summary (
+  host,
+  statements,
+  statement_latency,
+  statement_avg_latency,
+  table_scans,
+  file_ios,
+  file_io_latency,
+  current_connections,
+  total_connections,
+  unique_hosts
+) AS
+SELECT accounts.host,
+       SUM(stmt.total) AS statements,
+       sys.format_time(SUM(stmt.total_latency)) AS statement_latency,
+       sys.format_time(SUM(stmt.total_latency) / SUM(stmt.total)) AS statement_avg_latency,
+       SUM(stmt.full_scans) AS table_scans,
+       SUM(io.ios) AS file_ios,
+       sys.format_time(SUM(io.io_latency)) AS file_io_latency,
+       SUM(accounts.current_connections) AS current_connections,
+       SUM(accounts.total_connections) AS total_connections,
+       COUNT(DISTINCT accounts.user) AS unique_users
+  FROM performance_schema.accounts
+  LEFT JOIN sys.x$host_summary_by_statement_latency AS stmt ON accounts.host = stmt.host
+  LEFT JOIN sys.x$host_summary_by_file_io AS io ON accounts.host = io.host
+ WHERE accounts.host IS NOT NULL
+ GROUP BY accounts.host;
+
+/*
+ * View: x$host_summary
+ *
+ * Summarizes statement activity, file IO and connections by host.
+ *
+ * mysql> select * from x$host_summary;
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ * | host | statements | statement_latency | statement_avg_latency | table_scans | file_ios | file_io_latency | current_connections | total_connections | unique_users|
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ * | hal |       2925 |   239577283481000 |      81906763583.2479 |          83 |    54709 |  55605611965150 |                   1 |                 1 |            1 |
+ * +------+------------+-------------------+-----------------------+-------------+----------+-----------------+---------------------+-------------------+--------------+
+ *
+ */
+
+CREATE OR REPLACE
+  ALGORITHM = TEMPTABLE
+  DEFINER = 'root'@'localhost'
+  SQL SECURITY INVOKER 
+VIEW x$host_summary (
+  host,
+  statements,
+  statement_latency,
+  statement_avg_latency,
+  table_scans,
+  file_ios,
+  file_io_latency,
+  current_connections,
+  total_connections,
+  unique_hosts
+) AS
+SELECT accounts.host,
+       SUM(stmt.total) AS statements,
+       SUM(stmt.total_latency) AS statement_latency,
+       SUM(stmt.total_latency) / SUM(stmt.total) AS statement_avg_latency,
+       SUM(stmt.full_scans) AS table_scans,
+       SUM(io.ios) AS file_ios,
+       SUM(io.io_latency) AS file_io_latency,
+       SUM(accounts.current_connections) AS current_connections,
+       SUM(accounts.total_connections) AS total_connections,
+       COUNT(DISTINCT accounts.user) AS unique_users
+  FROM performance_schema.accounts
+  LEFT JOIN sys.x$host_summary_by_statement_latency AS stmt ON accounts.host = stmt.host
+  LEFT JOIN sys.x$host_summary_by_file_io AS io ON accounts.host = io.host
+ WHERE accounts.host IS NOT NULL
+ GROUP BY accounts.host;