logo
down
shadow

How do I mitigate Connection leak triggered for connection com.mysql.jdbc.JDBC4Connection@11d08960,


How do I mitigate Connection leak triggered for connection com.mysql.jdbc.JDBC4Connection@11d08960,

Content Index :

How do I mitigate Connection leak triggered for connection com.mysql.jdbc.JDBC4Connection@11d08960,
Tag : java , By : Bart van Bragt
Date : December 01 2020, 05:00 PM

hop of those help? As I have reviewed my codes over and over again. I came to realize that I was barking at the wrong tree, Seems like hikari is very reliable when it comes to connection leak. The problem is when amazon aws ec2 instance is stealing some of my cpu and is even greater than what i thought. So after the cpu goes up 99%, Connection leak is detected even though my codes clearly closed it in finally block. So the problem lies with the machine.
I thank you for all who participated to answer.

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

JDBC MySql connection pooling practices to avoid exhausted connection pool


Tag : java , By : hlpimfalling
Date : March 29 2020, 07:55 AM
it helps some times The exception indicates a typical case of application code which leaks database connections. You need to ensure that you acquire and close all of them (Connection, Statement and ResultSet) in a try-with-resources block in the very same method block according the normal JDBC idiom.
public void create(Entity entity) throws SQLException {
    try (
        Connection connection = dataSource.getConnection();
        PreparedStatement statement = connection.prepareStatement(SQL_CREATE);
    ) { 
        statement.setSomeObject(1, entity.getSomeProperty());
        // ...
        statement.executeUpdate();
    }
}
public void create(Entity entity) throws SQLException {
    Connection connection = null;
    PreparedStatement statement = null;

    try { 
        connection = dataSource.getConnection();
        statement = connection.prepareStatement(SQL_CREATE);
        statement.setSomeObject(1, entity.getSomeProperty());
        // ...
        statement.executeUpdate();
    } finally {
        if (statement != null) try { statement.close(); } catch (SQLException logOrIgnore) {}
        if (connection != null) try { connection.close(); } catch (SQLException logOrIgnore) {}
    }
}
public void close() throws SQLException {
    if (this.connection is still eligible for reuse) {
        do not close this.connection, but just return it to pool for reuse;
    } else {
        actually invoke this.connection.close();
    }
}

java.sql.SQLException: Connection com.mysql.jdbc.JDBC4Connection@1ab9c42 is closed


Tag : java , By : user140973
Date : March 29 2020, 07:55 AM
will be helpful for those in need Hi all I'm using JSP+Struts2+Tomcat6+Hibernate+mysql as my J2EE framework. the project works fine on local but when I put it on the server after some hours I get this error: , Try to add those properties in your datasource:
            testOnBorrow="true"
            testWhileIdle="true"

Type mismatch: cannot convert from java.sql.Connection to com.mysql.jdbc.Connection


Tag : mysql , By : Blaise Roth
Date : March 29 2020, 07:55 AM
help you fix your problem Remove the import com.mysql.jdbc.* and use import java.sql.Connection. I think it would be ok.

How to check the default port number for mysql connection? Connection not working! jdbc connection


Tag : java , By : Tom Smith
Date : November 19 2020, 12:41 AM
this will help I am trying to connect with database using jdbc in java file. It is not connecting at all and giving me the error constantly "Something went wrong"; I guess it is because of the port number because all other data such as username, password and other code seems correct. , You can access those settings via
mysql> show variables;

jdbc connection with java, singleton connection object or spring jdbc connection?


Tag : java , By : janik
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • Android Webview EvaluateJavascript sometimes does not return a response
  • Matcher java doesn't work but regex seems to be good
  • Finding dimensions of a .gif file
  • Java Number format how to change +/- sign to custom text
  • Entity partially saved when using JOINED inheritance strategy and setting spring.jpa.properties.hibernate.jdbc.batch_siz
  • Stored Procedure in Java Spring Boot Project returns null as Output
  • How to solve org.hibernate.MappingException which is causing due to inheriting a class
  • Clean Archtecture. Understanding of scheme
  • Processing 3 triangle not showing in Javafx 8 Window tab
  • How to specify a sequence-based generated value in Hibernate 5 via legacy mapping
  • Spring-boot application not getting auto-deployed on startup
  • How to only pass strings that the user select
  • Is there a way to SELECT using "GREATEST(field1, field2)" where field1 and field2 are aggregate sums in the sa
  • How to handle JSON objects wrapped into one JSON object with retrofit2?
  • Configure Hazelcast CPSubsystem Retries Timeout
  • how to use onBindViewHolder with multiple items in android RecyclerView
  • No ParameterResolver registered for parameter in BeforeAll method
  • Finding the path in a graph with the least casualties according to the lanchester square law
  • MongoWriteException when inserting into Mongodb with composite custom _id
  • Fetch Oracle procedure metadata with Java when multiple procedure signatures
  • Value modification of key-pair in HashMap and impact for a HashCode
  • Migration from solrj to spring-data-solr
  • How to check if you're still connected to the database with jpa
  • Use Date type in the graphql scheme
  • Split and add the string based on length
  • Is "main" method of spring boot application required when deploy as war
  • Getting the average within specific numbers in an array
  • how to use izpack to make my jar application to installer?
  • What is meant by src in Java Eclipse?
  • Create a mirrored linked list in Java
  • Examples of good JPA Java Desktop Application
  • Translate Java to Python -- signing strings with PEM certificate files
  • Algorithm Analysis tool for java
  • Java serial comm API - what does inputstream.read() return if a timeout occurs?
  • How do I make a background thread in Java that allows the main application to exit completely? This works in Linux, but
  • How to add an image dynamically at runtime in java
  • Java App on Mac asking for allow network connections everytime
  • Best actively maintained Java XMPP Library?
  • Multi-Threaded Application - Help with some pseudo code!
  • Scoping a StringBuilder inside a for loop
  • How to specify hash algorithm when updating LDAP via Java?
  • Class not found exception (org.apache.openjpa.enhance.PersistenceCapable) thrown in a client of WLS 10
  • In Java ,where in memory are class functions put?
  • How do I test expectedExceptionsMessageRegExp (exception message) using TestNG?
  • Help In understanding Multi Dimentional Arrays
  • No bean named '...' is defined and Spring @Resource annotation
  • Singleton design pattern vs Singleton beans in Spring container
  • flashvars object was not working in mozilla browser
  • Shell script to import mysql dump file
  • What are the best practices to separate data from users
  • May I use com.google.code prefix for my packages?
  • How to set classpath in manifest file , while creating JAR from eclipse?
  • dealing with voice in java
  • Error: java.security.AccessControlException: Access denied
  • How to verify the root trust of a ceritifcate
  • Searching for a standalone JSP compiler
  • Spring 2.5 managed servlets: howto?
  • iBatis get executed sql
  • GRAPH: find an algorithm to determine the shortest path from one point to another in a rectangular maze?
  • Efficient JSON encoding for data that may be binary, but is often text
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com