HikariCP

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Welcome to the HikariCP discussion group. Feel free to use this group for the

discussion of HikariCP features, configuration, and questions. Please report

bugs on GitHub.

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2/21/24

Hikari Connection Pool issue with Latest Spring Boot and Hibernate version

HI Team, We are in process of migrating from Springboot 2 to Spring boot 3, and in the process also

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Hikari Connection Pool issue with Latest Spring Boot and Hibernate version

HI Team, We are in process of migrating from Springboot 2 to Spring boot 3, and in the process also

2/21/24

1/15/24

Need help regarding Hikari Cp Micronaut Framework Configuration?

We are using the Micronaut framework, and I want to override the default HikariCP connection pool,

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Need help regarding Hikari Cp Micronaut Framework Configuration?

We are using the Micronaut framework, and I want to override the default HikariCP connection pool,

1/15/24

Jean de Lavarene

9/18/23

Adding support for begin/end request

HikariCP doesn't currently follow the latest JDBC standard as it doesn't mark request

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Adding support for begin/end request

HikariCP doesn't currently follow the latest JDBC standard as it doesn't mark request

9/18/23

9/10/23

Does pgbouncer offer an advantage to a Hikari Pool?

Hi everyone, I run a medium sized commercial JDBC app with a Hikari connection pool on each instance.

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Does pgbouncer offer an advantage to a Hikari Pool?

Hi everyone, I run a medium sized commercial JDBC app with a Hikari connection pool on each instance.

9/10/23

philippe....@gmail.com

7/22/23

Interest in JFR based metrics?

Hello We are using JDK Flight Recorder [1] for much of our monitoring needs. We wrote an integration

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Interest in JFR based metrics?

Hello We are using JDK Flight Recorder [1] for much of our monitoring needs. We wrote an integration

7/22/23

3/3/23

Hi, I'm curious about having a release with the commits that have gone in to the dev branch in

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Hi, I'm curious about having a release with the commits that have gone in to the dev branch in

3/3/23

1/17/23

empty pool issues

I'm looking for a solution for one of our customers for the empty pool problem that leads to

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empty pool issues

I'm looking for a solution for one of our customers for the empty pool problem that leads to

1/17/23

1/6/23

Reset auto-commit false to true after using it?

Hi there, I was wondering if you need to set auto-commit back to "true" if you close/

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Reset auto-commit false to true after using it?

Hi there, I was wondering if you need to set auto-commit back to "true" if you close/

1/6/23

No Thing, Brett Wooldridge2

10/8/22

One pool per DB vs many from performance point of view

Sorry for the late delay. In general, the overhead (cost) of a pool is very low. So, if you want to

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One pool per DB vs many from performance point of view

Sorry for the late delay. In general, the overhead (cost) of a pool is very low. So, if you want to

10/8/22

ralph.hy...@gmail.com, … Siva Kota5

6/3/22

Lookup password for each new connection

Hi Ralph, I think you can extend HikariDataSoruce class and override getPassword() to solve this

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Lookup password for each new connection

Hi Ralph, I think you can extend HikariDataSoruce class and override getPassword() to solve this

6/3/22

4/15/22

HikariCP for KDB

Hello, I would like to use HikariCP to create a connection pool for for KX's KDB database. There

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HikariCP for KDB

Hello, I would like to use HikariCP to create a connection pool for for KX's KDB database. There

4/15/22

Himanshu Dahiya

2/21/22

HikariCp Metrics Explanation

Being new user of HikariCp i have following question. In one of our application, We are using

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HikariCp Metrics Explanation

Being new user of HikariCp i have following question. In one of our application, We are using

2/21/22

Knut Arne Vedaa

1/24/22

Connection is closed

I'm trying to debug a scenario where I get `java.sql.SQLException: Connection is closed`. This is

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Connection is closed

I'm trying to debug a scenario where I get `java.sql.SQLException: Connection is closed`. This is

1/24/22

Darek Danielewski, ryan....@gmail.com4

12/13/21

HikariDataSource (HikariPool-1) has been closed.

And yes ... we do see "Shutdown initiated" in our logs. Although, can't say that's

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HikariDataSource (HikariPool-1) has been closed.

And yes ... we do see "Shutdown initiated" in our logs. Although, can't say that's

12/13/21

Fernando Bárcenas Martínez

7/26/21

Abandonned ConnectionProvider connections on redeploy/undeploy

Good day. A couple weeks ago I implemented HikariCP Pooling in our applications (Spring, Tomcat,

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Abandonned ConnectionProvider connections on redeploy/undeploy

Good day. A couple weeks ago I implemented HikariCP Pooling in our applications (Spring, Tomcat,

7/26/21

7/25/21

HikariCP connection SoketTimeoutConnection

Hello, I have a java app that uses a connection pool to execute queries and return results. I am

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HikariCP connection SoketTimeoutConnection

Hello, I have a java app that uses a connection pool to execute queries and return results. I am

7/25/21

10/22/20

HikariCP broken connections goes unresponsive

Hi, Greetings !! On an enterprise network, I am working on a springboot app which comes by default

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HikariCP broken connections goes unresponsive

Hi, Greetings !! On an enterprise network, I am working on a springboot app which comes by default

10/22/20

10/15/20

MysqlConnectionPoolDataSource

Greetings, In the table for Popular datasource class names the MySQL driver com.mysql.jdbc.jdbc2.

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MysqlConnectionPoolDataSource

Greetings, In the table for Popular datasource class names the MySQL driver com.mysql.jdbc.jdbc2.

10/15/20

Cointopay International B.V., … ktsc...@gmail.com5

10/2/20

Organic behavior from static connection pool

Hi, thanks a lot, have implemented it, seems to work fine. On Thursday, October 1, 2020 at 7:47:54 PM

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Organic behavior from static connection pool

Hi, thanks a lot, have implemented it, seems to work fine. On Thursday, October 1, 2020 at 7:47:54 PM

10/2/20

ktsc...@gmail.com

10/1/20

HikariCP and XADataSource

Hi, I've been using HikariCP for a number of years now with great success. I now need to have my

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HikariCP and XADataSource

Hi, I've been using HikariCP for a number of years now with great success. I now need to have my

10/1/20

Gregory Haase, … Brett Wooldridge9

8/2/20

Pool Initialization question

Unfortunately, the concurrency drop isn't really within our control. We are shared services

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Pool Initialization question

Unfortunately, the concurrency drop isn't really within our control. We are shared services

8/2/20

7/26/20

Export Control Classification Number (ECCN) for HikariCP

Dear All, Could you please let me know the ECCN for HikariCP (HikariCP-3.3.1.jar) for export control

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Export Control Classification Number (ECCN) for HikariCP

Dear All, Could you please let me know the ECCN for HikariCP (HikariCP-3.3.1.jar) for export control

7/26/20

7/6/20

Receive this rarely - "Failed to initialize pool: Communications link failure"

Hi all. I have 3 Java webapps running on 1 Tomcat. Originally each webapp had their own MySQL

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Receive this rarely - "Failed to initialize pool: Communications link failure"

Hi all. I have 3 Java webapps running on 1 Tomcat. Originally each webapp had their own MySQL

7/6/20

Walter Moar, Brett Wooldridge2

5/17/20

Controlling timeout to add connection to pool

It is difficult to know what the driver is doing under the covers. This blog offers some useful

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Controlling timeout to add connection to pool

It is difficult to know what the driver is doing under the covers. This blog offers some useful

5/17/20

4/22/20

How can I get stats of a Hikari Data Source like Active, Idle or Waiting Connections?

Hi, For some monitoring purposes, I need to know the stats like current active, idle or waiting

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How can I get stats of a Hikari Data Source like Active, Idle or Waiting Connections?

Hi, For some monitoring purposes, I need to know the stats like current active, idle or waiting

4/22/20

Adnan Sohail, Jens3

4/3/20

How HikariCP can be initialized with some initial no of connection created at the time of initialization?

Thanks for clarification J. That's helpful. Please clarify one more thing. Does Hikari creates

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How HikariCP can be initialized with some initial no of connection created at the time of initialization?

Thanks for clarification J. That's helpful. Please clarify one more thing. Does Hikari creates

4/3/20

Reynaldo Bernard De Dios De La Cruz, Brett Wooldridge5

1/28/20

Thanks for share HikariCP, im using it!

Hi, thanks a lot for the explanation.

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Thanks for share HikariCP, im using it!

Hi, thanks a lot for the explanation.

1/28/20

12/24/19

Hello, Is it possible to use Hikar CP to allow High Availability Disaster Recovery with a secondary

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Hello, Is it possible to use Hikar CP to allow High Availability Disaster Recovery with a secondary

12/24/19

piyush kanungo, Brett Wooldridge3

12/21/19

Java-11 + HikariCP-3.4.1 pool sealed issue

Hi Brett, Thanks for the update. HikariConfig config = new HikariConfig(); config.setJdbcUrl(props.

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Java-11 + HikariCP-3.4.1 pool sealed issue

Hi Brett, Thanks for the update. HikariConfig config = new HikariConfig(); config.setJdbcUrl(props.

12/21/19

Debajyoti Pathak, Brett Wooldridge2

12/12/19

Hikari pool metrics - how to

Have you looked at the examples in https://github.com/brettwooldridge/HikariCP/tree/dev/src/test/java

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Hikari pool metrics - how to

Have you looked at the examples in https://github.com/brettwooldridge/HikariCP/tree/dev/src/test/java

12/12/19

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