(edit: Perhaps I am wrong in what this error means. Is this indicating that the connection pool at my CLIENT is full? or a connection pool at the SERVER is full and this is the error my client is b...

For years, I've experienced very weird problems on all my web applications that connect to a SQL server. The problem is that if something happens to the database server (server restart or other pr...

I'm trying to set up a MySQL connection pool and have my worker processes access the already established pool instead of setting up a new connection each time. I'm confused if I should pass the da...

I am using Apache Tomcat JDBC connection pool library in my project and configured the context.xml file accordingly. My application instance needs to run at multiple locations, but load on the appl...

We are using Mongoose, Nodejs, Serverless, and AWS Lambda. For making use of the same connection instead of opening and closing the connection each time whenever required, I have created a connecti...

We are trying to convert our monolithic application to a micro services based architecture. We use Postgresql as one of our database in the monolithic application with BoneCP for connection pooling...

I'm using Celery with an AMQP broker to call tasks, but the response needs to be passed back with a different queue architecture than Celery uses, so I want to pass the messages back using Kombu on...

For testing, I amend the MYSQL (RDS) parameters as follows; wait_timeout = 40 (default was 28800) max_allowed_packet = 1GB (max - just to be sure issue not caused by small packets) net_read_timeou...

I am going through spring boot application and mongoDb connection POC. I have added following dependency: <dependency> <groupId>org.springframework.boot</groupId> <artifact...

Python's popular Requests library is said to be thread-safe on its home page, but no further details are given. If I call requests.session(), can I then safely pass this object to multiple threads ...

I have written following properties in my configuration files I am using Log4j in my application When I am running a project. I am getting following message.does that mean connection pooling is c...

Many database connection pooling libraries provide the ability to test their SQL connections for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery, which...

I'm using SpringBoot (v2.3.0.RELEASE), JPA and Hibernate (with a MySQL database). I need to try to improve, in general, the performances. It's not completely clear for me if, into the default confi...

I'm trying to configure R2DBC connection to PostgreSQL database with connection pool. I have followed this documentation: https://github.com/r2dbc/r2dbc-pool/blob/main/README.md. ConnectionFactory ...

I am trying to implement the concept of ConnectionPooling in Oracle using Jetty server. I have tried the following that I saw on a tutorial. It is working if I deploy using Tomcat server, but Jetty...

We have a [Hibernate + c3p0 + MySQL] config for our project. We are hitting the following exception: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a r...

I want some clarification on how the pre ping feature exactly works with SqlAlchemy db pools. Let's say I try to make a SQL query to my database with the db pool. If the db pool sends a pre ping to...

I use DBCP pool and I want use testOnBorrow and testOnReturn to test if connection is still valid. Unfortunately I have to set property validationQuery to make it work. Question: What value should...

I have a Saas application on AWS ECS and databases on AWS RDS. We are planning to implement AWS RDS Proxy for pooling implementation. From the RDS proxy documentation, I saw that we don't need to m...

My Spring Boot works fine when I generate report using Japser report. The problem I face is that the application throws a hibernate exception : Unable to acquire JDBC Connection I get this e...

I have heard the term connection pooling and looked for some references by googling it... But can't get the idea when to use it.... When should i consider using connection pooling? What are the a...

I've been learning about connection pools, and I have gotten one working by using Tomcat's PoolProperties. Now I would like to set one up using a context.xml file with Tomcat and IntelliJ, but I ca...

Can anyone please tell me if the Spring Cloud Feign Client provides or supports Http Connection Pooling, and if so how to configure settings like pool size? I can't seem to find this in the officia...

We are running an AWS RDS Aurora/MySQL database in a cluster with a writer and a reader instance where the writer is replicated to the reader. The application accessing the database is a standard...

We have ASP.NET app that connects to oracle database with odp.net. Lately we started to experienced some performance issues. It seems that Oracle connections do not close and eventually pile up un...