Details
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Bug
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Status: Open (View Workflow)
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Minor
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Resolution: Unresolved
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10.3.23
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Debian 8.0 (Jessie)
Description
I tried creating the following tables on 2 servers:
// Master
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CREATE DATABASE IF NOT EXISTS test; |
|
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CREATE TABLE IF NOT EXISTS test.test_data ( |
id INT, |
content VARCHAR(255), |
PRIMARY KEY (id) |
) ENGINE=INNODB;
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INSERT INTO test.test_data |
VALUES
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(1, "Test 01"), |
(2, "Test 02"); |
// Slave
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CREATE DATABASE IF NOT EXISTS test; |
|
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CREATE TABLE IF NOT EXISTS test.test_data ( |
id INT, |
content VARCHAR(255) |
) ENGINE=CONNECT TABLE_TYPE=MYSQL OPTION_LIST='connect=server_connect' |
SRCDEF='SELECT id, content FROM test.test_data WHERE %s'; |
|
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CREATE TABLE IF NOT EXISTS test.test_trigger ( |
id INT, |
content VARCHAR(255), |
PRIMARY KEY (id) |
) ENGINE=INNODB;
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DELIMITER //
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DROP TRIGGER IF EXISTS test.after_test_trigger; |
//
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CREATE TRIGGER test.after_test_trigger |
AFTER INSERT ON test.test_trigger |
FOR EACH ROW |
BEGIN
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SET @test_content = ( |
SELECT td.content |
FROM test.test_data td |
WHERE
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td.id = NEW.id
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);
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END // |
INSERT INTO test.test_trigger |
VALUES
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(1, "Test 01"), |
(2, "Test 02"); |
I've attached general log below. You'll find only the last statement that quit this connection "208", the rest won't. Therefore, when I update 200 rows, it exceeds 200 connections and show error "Too many connections".
Thanks.
Attachments
Issue Links
- duplicates
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- Closed
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Activity
| Field | Original Value | New Value |
|---|---|---|
| Attachment | general_log.png [ 53761 ] | |
| Description |
I tried creating the following tables on 2 servers:
{code:sql} // Some comments here public String getFoo() { return foo; } {code} |
I tried creating the following tables on 2 servers:
{code:sql} // Master CREATE DATABASE IF NOT EXISTS test; CREATE TABLE IF NOT EXISTS test.test_data ( id INT, content VARCHAR(255), PRIMARY KEY (id) ) ENGINE=INNODB; INSERT INTO test.test_data VALUES (1, "Test 01"), (2, "Test 02"); {code} {code:sql} // Slave CREATE DATABASE IF NOT EXISTS test; CREATE TABLE IF NOT EXISTS test.test_data ( id INT, content VARCHAR(255) ) ENGINE=CONNECT TABLE_TYPE=MYSQL OPTION_LIST='connect=server_connect' SRCDEF='SELECT id, content FROM test.test_data WHERE %s'; CREATE TABLE IF NOT EXISTS test.test_trigger ( id INT, content VARCHAR(255), PRIMARY KEY (id) ) ENGINE=INNODB; DELIMITER // DROP TRIGGER IF EXISTS test.after_test_trigger; // CREATE TRIGGER test.after_test_trigger AFTER INSERT ON test.test_trigger FOR EACH ROW BEGIN SET @test_content = ( SELECT td.content FROM test.test_data td WHERE td.id = NEW.id ); END // INSERT INTO test.test_trigger VALUES (1, "Test 01"), (2, "Test 02"); {code} I've attached general log below. You'll find only the last statement that quit this connection "208", the rest won't. Therefore, when I update 200 rows, it exceeds 200 connections and show error "Too many connections". Thanks. |
| Link |
This issue duplicates |
| Fix Version/s | 10.3 [ 22126 ] | |
| Assignee | Olivier Bertrand [ bertrandop ] |
I updated 200 rows in my project. You could try inserting 200 rows in this example and set max_connections = 100.
| Workflow | MariaDB v3 [ 113272 ] | MariaDB v4 [ 142239 ] |
How can you make 200 updates on a table having only 2 rows?