Tomcat JDBC Connection Pool
Tomcat JDBC Connection Pool: A configurable JDBC pool with asynchronous acquisition, JMX monitoring and XA support. Ranked #5 of 29 in Database Connection Pooling Software by our editors (8.5/10); pricing: Free plan; best for JDBC pooling with monitoring and XA support.
At a glance
- Editor score8.5 / 10
- PricingFree plan
- Best forJDBC pooling with monitoring and XA support
- Free planYes
- Paid fromFree
- Transaction poolingNo
- Facts checked14 Nov 2026
Where it wins
- Configurable active and idle connection counts, validation and recovery settings
- Asynchronous connection retrieval returns a Future
- JMX monitoring, XA support and pluggable JDBC interceptors
Where it doesn't
- Uses JDBC drivers rather than providing database connectivity itself
- Deployment is self-hosted, as a Tomcat resource or standalone data source
- Pools JDBC connections rather than providing separate transaction pooling
Our verdict on Tomcat JDBC Connection Pool
Tomcat JDBC Connection Pool is a Java library that manages pooled database connections through JDBC. It suits developers building Java applications in Apache Tomcat or using a standalone data source, including teams that want to tune connection behavior within their own deployment. Database access relies on JDBC drivers, so the pool is a layer for managing connections rather than a database service or a fixed set of database connectors.
Configuration covers maximum active connections, idle connection counts, validation intervals and validation queries, along with abandoned-connection detection and recovery settings. Applications can also retrieve connections asynchronously through a Future. The documented maxActive default is 100; that is a default setting, not a universal enforced ceiling. These controls make the pool relevant where connection sizing, validation behavior or acquisition patterns need to be adjusted to an application's workload. It pools JDBC connections rather than offering separate session, transaction or statement pooling modes.
Monitoring and connection behavior are another reason to consider it. JMX monitoring and notifications expose pool signals, while pluggable JDBC interceptors include statement caching and slow-query reporting. XA connection support adds an option for applications that need XA-capable connections. The project is open source and free, with self-hosted deployment in Tomcat or as a standalone data source; support channels include documentation. Choose it when a Java application needs configurable JDBC pooling, monitoring or XA support and the team is prepared to manage the deployment. It is a less direct fit for buyers seeking a hosted pool, a database-agnostic connectivity layer, or transaction pooling as a distinct mode.
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Tomcat JDBC Connection Pool pricing
Tomcat JDBC Connection Pool fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Transaction pooling | No |
| Pooling modes | Not verified |
| Deployment model | Both |
| Supported databases | Not verified |
| Connection limit | 100 connections |
| Protocol support | JDBC |
| Deployment | Self-hosted |
| Support | Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | tomcat.apache.org |
| Facts checked | 14 Nov 2026 |
Alternatives to Tomcat JDBC Connection Pool
- MariaDB MaxScaleSQL-aware pooling and routing for MariaDB and MySQL-compatible production environments.9.3
- OdysseyA focused, open-source pooler for PostgreSQL session and transaction workloads.9.1
- PgBouncerA self-hosted PostgreSQL pooler with flexible modes and connection controls, but no built-in failover.8.9
See all Tomcat JDBC Connection Pool alternatives →
Tomcat JDBC Connection Pool vs the competition
- Tomcat JDBC Connection Pool vs MariaDB MaxScale
- Tomcat JDBC Connection Pool vs Odyssey
- Tomcat JDBC Connection Pool vs PgBouncer
- Tomcat JDBC Connection Pool vs Apache Commons DBCP
- Tomcat JDBC Connection Pool vs Vert.x Reactive SQL Clients
- Tomcat JDBC Connection Pool vs Psycopg Pool
Compare Tomcat JDBC Connection Pool with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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