You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
233 lines
8.1 KiB
Plaintext
233 lines
8.1 KiB
Plaintext
HikariCP Changes
|
|
|
|
Changes between 1.3.6 and 1.3.7
|
|
|
|
*) Added JNDI object factory (com.zaxxer.hikari.HikariJNDIFactory)
|
|
for Tomcat and other containers that prefer JNDI-registered DataSource
|
|
factories.
|
|
|
|
*) Fix NPE that can occur when connections cannot be created and
|
|
callers to getConnection() timeout.
|
|
|
|
*) Various bug fixes and minor enhancements.
|
|
|
|
Changes between 1.3.5 and 1.3.6
|
|
|
|
*) Include connection failure cause in calls to getConnection() that
|
|
timeout (due to connection failure). Removed chatty logging.
|
|
|
|
*) Java8 Compatability fixes.
|
|
|
|
*) Include pool name in logging messages. Thanks for the contribution
|
|
@jaredstehler.
|
|
|
|
Changes between 1.3.4 and 1.3.5
|
|
|
|
*) Fixed a regression in the Javassist code generation.
|
|
|
|
*) Various bug fixes and minor enhancements.
|
|
|
|
Changes between 1.3.3 and 1.3.4
|
|
|
|
*) Added new property isolateInternalQueries used to control whether
|
|
internal pool queries such as connection alive tests are isolated
|
|
in their own transaction.
|
|
|
|
*) Added properties for DriverManager (driverClassName) and JDBC URL-based
|
|
(jdbcUrl) configuration. 1999 called and wants its JDBC driver back.
|
|
|
|
*) Added new username and password properties to allow default authentication
|
|
for connections.
|
|
|
|
*) Added support for the getConnection(username, password) method signature
|
|
to HikariDataSource.
|
|
|
|
*) Added new property readOnly to control the default read-only status
|
|
of connections in the pool.
|
|
|
|
*) Deprecated acquireIncrement property.
|
|
|
|
*) Deprecated acquireRetries property.
|
|
|
|
*) Deprecated acquireRetryDelay property.
|
|
|
|
*) Deprecated minimumPoolSize property.
|
|
|
|
*) Added new property minimumIdle used to control the minimum number of
|
|
idle connections the pool should try to maintain on a running basis.
|
|
|
|
*) Added evictConnection(Connection) method to HikariDataSource to allow
|
|
special cases where users wish to forcibly eject a connection from
|
|
the pool. To use used cautiously, read the JavaDoc before using.
|
|
|
|
*) Various bug fixes and minor enhancements.
|
|
|
|
Changes between 1.3.2 and 1.3.3
|
|
|
|
*) Removed shared state contention that was causing excessive CPU cache-line
|
|
flushing. Nearly 4x improvement in Connection acquisition/release
|
|
performance.
|
|
|
|
*) Fixed issue with Tomcat carping about ThreadLocal variables held after
|
|
web application restart.
|
|
|
|
*) Fixed issue where the maximum configured connections could be overrun
|
|
during large burst requests for connections.
|
|
|
|
Changes between 1.3.0 and 1.3.2
|
|
|
|
*) Java 6 compatibility.
|
|
|
|
*) HikariDataSource now extends HikariConfig, so pool properties can be
|
|
set directly on a HikariDataSource without need to create a HikariConfig.
|
|
The cost of doing so is a small runtime cost due to the fact that an
|
|
"is initialized" check must be performed on every invocation of
|
|
getConnection() due to lazy initialization of the pool.
|
|
|
|
*) Added Sybase-specific disconnect error codes to SQLException snooping.
|
|
|
|
*) Added HikariConfig.setCatalog() method to set DataSource catalog.
|
|
|
|
*) Add DataSource.close() method that is synonymous with shutdown().
|
|
|
|
*) More performance improvements (never ending).
|
|
|
|
*) Moved benchmarks to https://github.com/brettwooldridge/HikariCP-benchmark
|
|
|
|
Changes between 1.2.9 and 1.3.0
|
|
|
|
*) Pool is now backed by a custom lock-less ConcurrentBag that
|
|
provides superior performance to LinkedBlockingQueue and
|
|
LinkedTransferQueue for usage patterns of connection pools.
|
|
|
|
*) Fixed bugs reported against the 1.2.9 release.
|
|
|
|
*) Added more detailed logging for broken connections and failures
|
|
during new connection creation.
|
|
|
|
Changes between 1.2.8 and 1.2.9
|
|
|
|
*) Added a fail-fast option for pool initialization. If enabled, a
|
|
RuntimeException will be thrown if there are errors during pool
|
|
initialization.
|
|
|
|
*) Made the registration of the HikariCP MBeans optional. They now
|
|
default to not being registered. Registering them causes a minor
|
|
performance hit due to additional pool data collection in
|
|
HikariDataSource.getConnection().
|
|
|
|
*) Added the SQLException message to the log entry when an exception
|
|
occurs during physical connection acquisition.
|
|
|
|
*) Implemented an orderly shutdown of the pool via the shutdown() method
|
|
on HikariDataSource.
|
|
|
|
*) Listened to "Adele - Live At The Royal Albert Hall" on endless loop.
|
|
|
|
Changes between 1.2.7 and 1.2.8
|
|
|
|
*) Fixed a critical bug introduced in 1.2.7 occurring when the number of
|
|
concurrently open statements exceeds sixteen.
|
|
|
|
Changes between 1.2.6 and 1.2.7
|
|
|
|
*) Finally achieved performance parity between the generated delegates
|
|
and the former method of instrumenting driver classes directly.
|
|
|
|
*) Improved generated delegate code. Removed unnecessary casts, moved
|
|
to a static proxy factory rather than a singleton (performance win).
|
|
|
|
*) Improved performance of FastStatementList (primary source of speed-up
|
|
to reach parity with former instrumentation code).
|
|
|
|
*) Removed aliveness check on connection creation.
|
|
|
|
*) Track connection isolation level and only reset if the state has
|
|
become "dirty". Avoids unnecessary round trip to the DB during the
|
|
aliveness check.
|
|
|
|
*) Added interface IConnectionCustomizer and related HikariConfig
|
|
property 'connectionCustomizerClassName' to allow users to specify
|
|
a connection customization implementation.
|
|
|
|
Changes between 1.2.5 and 1.2.6
|
|
|
|
*) Fixed regression that caused IndexOutOfBounds when multiple unclosed
|
|
Statements existed at the time of Connection.close().
|
|
|
|
*) Fixed incorrect pom.xml dependency on Hibernate.
|
|
|
|
Changes between 1.2.4 and 1.2.5
|
|
|
|
*) Instrumentation mode (agent) removed due to narrowing gap between
|
|
delegation mode and instrumentation (and to simplify the code base).
|
|
|
|
*) Added setDataSource() to HikariConfig to allow a DataSource instance
|
|
to be explicitly wrapped by the pool. Only available when creating
|
|
HikariConfig programmatically or constructing HikariConfig from a
|
|
java.util.Properties instance.
|
|
|
|
*) Fixed Hibernate threading issue (certain usage patterns) introduced
|
|
in 1.2.2.
|
|
|
|
*) Fixed issue observed with PostgreSQL whereby the query that tests the
|
|
connection for "aliveness" also starts a transaction (when auto-commit
|
|
is false), thereby causing a later failure when we tried to set the
|
|
transaction isolation level.
|
|
|
|
*) Fixed issue where idleTimeout could not be set to 0, thereby disabling
|
|
it. Incorrect value validation caused 0 to be rejected as a valid value.
|
|
|
|
Changes between 1.2.3 and 1.2.4
|
|
|
|
*) Fix another Hibernate-related issue whereby an NPE is encountered when
|
|
a thread that was not the thread that obtained a Connection tries to
|
|
interact with that Connection.
|
|
|
|
Changes between 1.2.2 and 1.2.3
|
|
|
|
*) Fix internal (but suppressed) exception during rollback of connections
|
|
returned to the pool with auto-commit turned off.
|
|
|
|
*) Fix a reflection issue that causes Hibernate failures due to the
|
|
CallableStatement interface being incorrectly injected into statement
|
|
proxies that are PreparedStatement or Statement instances.
|
|
|
|
Changes between 1.2.1 and 1.2.2
|
|
|
|
*) Perform a rollback() on connections returned to the pool with
|
|
auto commit disabled.
|
|
|
|
*) Add a constructor for HikariConfig that accepts a Properties
|
|
object.
|
|
|
|
*) Speed improvements for delegate mode.
|
|
|
|
*) Fix a bug where connection timeouts could not be disabled.
|
|
|
|
*) Permit setting the DataSource logWriter either on the HikariDataSource
|
|
or via addDataSourceProperty() on the HikariConfig.
|
|
|
|
*) Add transactionIsolation property to allow setting the default
|
|
transaction isolation level for connections.
|
|
|
|
Changes between 1.1.9 and 1.2.1
|
|
|
|
*) Clear SQL warnings before returning a connection to the user.
|
|
|
|
*) Added asynchronous connection backfill strategy that triggers
|
|
when the pool becomes empty as a result of dispatching a
|
|
connection.
|
|
|
|
*) Changed default acquireIncrement to 1, set minimum timeout of
|
|
100ms for acquiring a connection.
|
|
|
|
Changes between 1.1.8 and 1.1.9
|
|
|
|
*) Added connectionInitSql property to allow setting connection
|
|
properties when a new connection is created.
|
|
|
|
*) Added setDataSourceProperties() setter to HikariConfig to
|
|
allow easier configuration though Spring.
|
|
|