mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 21:42:35 +01:00
144 lines
5 KiB
Text
144 lines
5 KiB
Text
# Take a snapshot of SOCKET_INSTANCES
|
|
CREATE TEMPORARY TABLE my_socket_instances AS
|
|
SELECT * FROM performance_schema.socket_instances;
|
|
# Get thread id of the default connection
|
|
SELECT THREAD_ID INTO @thread_id
|
|
FROM performance_schema.threads
|
|
WHERE PROCESSLIST_ID = CONNECTION_ID();
|
|
# Establish local TCP/IP connection (con1,localhost,root,,test,,)
|
|
# Store the thread id of connection 1 (tcp/ip)
|
|
SELECT THREAD_ID INTO @thread_id
|
|
FROM performance_schema.threads
|
|
WHERE PROCESSLIST_ID = CONNECTION_ID();
|
|
# Store the port of connection 1 (tcp/ip)
|
|
SELECT PORT INTO @port
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
# Switch to connection default
|
|
# Establish second local TCP/IP connection (con1,localhost,root,,test,,)
|
|
# Store the thread_id of connection 2 (tcp/ip)
|
|
SELECT THREAD_ID INTO @thread_id
|
|
FROM performance_schema.threads
|
|
WHERE PROCESSLIST_ID = CONNECTION_ID();
|
|
# Store the port of connection 2 (tcp/ip)
|
|
SELECT PORT INTO @port
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
# Switch to connection default
|
|
# EVENT_NAME is the "wait/io/socket/*" instrument identifier.
|
|
SELECT COUNT(*) = 0 AS "Expect 1"
|
|
FROM performance_schema.socket_instances
|
|
WHERE EVENT_NAME NOT LIKE 'wait/io/socket/%';
|
|
Expect 1
|
|
1
|
|
# OBJECT_INSTANCE_BEGIN is an arbitrary identifier, guaranteed to be unique.
|
|
SELECT COUNT(*) = COUNT(DISTINCT OBJECT_INSTANCE_BEGIN) AS "Expect 1"
|
|
FROM performance_schema.socket_instances;
|
|
Expect 1
|
|
1
|
|
# SOCKET_ID is the internal file handle assigned to the socket.
|
|
SELECT COUNT(*) = COUNT(DISTINCT SOCKET_ID) AS "Expect 1"
|
|
FROM performance_schema.socket_instances;
|
|
Expect 1
|
|
1
|
|
# Characteristics per our thread
|
|
# There must be only one entry with our thread_id
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# TCP/IP connections should have a unique port number
|
|
# Connection 1 (tcp/ip)
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE PORT = @port;
|
|
Expect 1
|
|
1
|
|
# Connection 2 (tcp/ip)
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE PORT = @port;
|
|
Expect 1
|
|
1
|
|
# Check the content for the default connection (tcpip)
|
|
SELECT EVENT_NAME = 'wait/io/socket/sql/client_connection'
|
|
AND (IP LIKE '%127.0.0.1' OR IP = '::1') AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# Characteristics of 'server_tcpip_socket' entry
|
|
# Server listening socket, TCP/IP
|
|
# There is only one entry with 'wait/io/socket/sql/server_tcpip_socket'.
|
|
# It shares the same thread id as 'wait/io/socket/sql/server_unix_socket'.
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE EVENT_NAME = 'wait/io/socket/sql/server_tcpip_socket';
|
|
Expect 1
|
|
1
|
|
# Get the 'server_tcpip_socket' thread id
|
|
SELECT THREAD_ID INTO @thread_id
|
|
FROM performance_schema.socket_instances
|
|
WHERE EVENT_NAME = 'wait/io/socket/sql/server_tcpip_socket';
|
|
# Check the content.
|
|
SELECT THREAD_ID = @thread_id
|
|
AND (IP = '0.0.0.0' OR IP = '::')
|
|
AND PORT = @port
|
|
AND STATE = 'ACTIVE' AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE EVENT_NAME = 'wait/io/socket/sql/server_tcpip_socket';
|
|
Expect 1
|
|
1
|
|
# Check content for client connection 1 (tcpip)
|
|
SELECT EVENT_NAME = 'wait/io/socket/sql/client_connection'
|
|
AND (IP LIKE '%127.0.0.1' OR IP = '::1')
|
|
AND PORT = @port
|
|
AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# Characteristics of entries with THREAD_ID of con1
|
|
# There is only one entry with this id.
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# Check content for client connection 2 (tcpip)
|
|
SELECT EVENT_NAME = 'wait/io/socket/sql/client_connection'
|
|
AND (IP LIKE '%127.0.0.1' OR IP = '::1')
|
|
AND PORT = @port
|
|
AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# Characteristics of entries with THREAD_ID of con2
|
|
# There is only one entry with this id.
|
|
SELECT COUNT(*) = 1 AS 'Expect 1'
|
|
FROM performance_schema.socket_instances
|
|
WHERE THREAD_ID = @thread_id;
|
|
Expect 1
|
|
1
|
|
# Show differences to socket_instances before con1, con2 and con3 connecting
|
|
SELECT EVENT_NAME, IP
|
|
FROM performance_schema.socket_instances
|
|
WHERE (EVENT_NAME,OBJECT_INSTANCE_BEGIN,THREAD_ID,SOCKET_ID,IP,PORT,STATE)
|
|
NOT IN (SELECT EVENT_NAME,OBJECT_INSTANCE_BEGIN,THREAD_ID,SOCKET_ID,IP,PORT,STATE
|
|
FROM my_socket_instances)
|
|
ORDER BY THREAD_ID;
|
|
EVENT_NAME IP
|
|
wait/io/socket/sql/client_connection <LOCALHOST>
|
|
wait/io/socket/sql/client_connection <LOCALHOST>
|
|
# Disconnect con1 and con2
|
|
# After waiting a bit we should have no differences to socket_instances
|
|
# before con1, con2 connecting.
|
|
SELECT *
|
|
FROM performance_schema.socket_instances
|
|
WHERE (EVENT_NAME,OBJECT_INSTANCE_BEGIN,THREAD_ID,SOCKET_ID,IP,PORT,STATE)
|
|
NOT IN (SELECT EVENT_NAME,OBJECT_INSTANCE_BEGIN,THREAD_ID,SOCKET_ID,IP,PORT,STATE
|
|
FROM my_socket_instances)
|
|
ORDER BY THREAD_ID;
|
|
EVENT_NAME OBJECT_INSTANCE_BEGIN THREAD_ID SOCKET_ID IP PORT STATE
|