Documentation

You are viewing the documentation for the 2.0 release in the 2.0.x series of releases. The latest stable release series is 2.5.x.

§Configuring the JDBC pool.

The Play 2.0 JDBC datasource is managed by BoneCP .

§Special URLs

Play supports special url format for both MySQL and PostgreSQL:

# To configure MySQL
db.default.url=mysql://localhost:root@secret/myDatabase

# To configure PostgreSQL
db.default.url=postgres://localhost:root@secret/myDatabase

§Reference

In addition to the classical driver, url, user, password configuration properties, it also supports additional tuning parameters if you need them:

# The JDBC driver to use
db.default.driver=org.h2.Driver

# The JDBC url
db.default.url="jdbc:h2:mem:play"

# User name
db.default.user=sa

# Password
db.default.password=secret

# Set a connection's default autocommit setting
db.default.autocommit=true

# Set a connection's default isolation level
db.default.isolation=READ_COMMITTED

# In order to reduce lock contention and thus improve performance, 
# each incoming connection request picks off a connection from a 
# pool that has thread-affinity. 
# The higher this number, the better your performance will be for the 
# case when you have plenty of short-lived threads. 
# Beyond a certain threshold, maintenance of these pools will start 
# to have a negative effect on performance (and only for the case 
# when connections on a partition start running out).
db.default.partitionCount=2

# The number of connections to create per partition. Setting this to 
# 5 with 3 partitions means you will have 15 unique connections to the 
# database. Note that BoneCP will not create all these connections in 
# one go but rather start off with minConnectionsPerPartition and 
# gradually increase connections as required.
db.default.maxConnectionsPerPartition=5

# The number of initial connections, per partition.
db.default.minConnectionsPerPartition=5

# When the available connections are about to run out, BoneCP will 
# dynamically create new ones in batches. This property controls 
# how many new connections to create in one go (up to a maximum of 
# maxConnectionsPerPartition). Note: This is a per-partition setting.
db.default.acquireIncrement=1

# After attempting to acquire a connection and failing, try to 
# connect this number of times before giving up.
db.default.acquireRetryAttempts=10

# How long to wait before attempting to obtain a 
# connection again after a failure.
db.default.acquireRetryDelay=5 seconds

# The maximum time to wait before a call 
# to getConnection is timed out.
db.default.connectionTimeout=1 second

# Idle max age
db.default.idleMaxAge=10 minute

# This sets the time for a connection to remain idle before sending a test query to the DB. 
# This is useful to prevent a DB from timing out connections on its end. 
db.default.idleConnectionTestPeriod=5 minutes

# An initial SQL statement that is run only when 
# a connection is first created.
db.default.initSQL="SELECT 1"

# If enabled, log SQL statements being executed.
db.default.logStatements=false

# The maximum connection age.
db.default.maxConnectionAge=1 hour