升级 MariaDB 连接器后出现 SQLTransientConnectionException
SQLTransientConnectionException after upgrading MariaDB connector
我已将 "org.mariadb.jdbc" % "mariadb-java-client" 连接器从 1.5.9 升级到 1.6.0，但由于超时异常，我在连接到数据库时开始失败。
我将它与 HikariCP 2.5.1 和 Slick 3.2.0 一起使用。如果我再次将更改回滚到 MariaDB 连接器 1.5.9，它会成功连接，如果我尝试直接升级到 2.0.1，它会失败并出现同样的错误。
问题是基于 the 1.6.0 changelog, we shouldn't experiment any breaking change. But according to the differences in the GitHub repository，它可能比更改日志中指定的修改更多：/
本地数据库异常：
java.sql.SQLTransientConnectionException: xxx.db - Connection is not available, request timed out after 5006ms.
at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource.createConnection(HikariCPJdbcDataSource.scala:18)
at slick.jdbc.JdbcBackend$BaseSession.<init>(JdbcBackend.scala:439)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:47)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$class.acquireSession(BasicBackend.scala:218)
at slick.jdbc.JdbcBackend$DatabaseDef.acquireSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$$anon.run(BasicBackend.scala:239)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=localhost)(port=3306)(type=master) : Connection refused
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:156)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:118)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.throwException(ExceptionMapper.java:92)
at org.mariadb.jdbc.Driver.connect(Driver.java:108)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:193)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:430)
at com.zaxxer.hikari.pool.HikariPool.access0(HikariPool.java:64)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:570)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:563)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 3 common frames omitted
Caused by: java.sql.SQLException: Could not connect to address=(host=localhost)(port=3306)(type=master) : Connection refused
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1020)
at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:481)
at org.mariadb.jdbc.Driver.connect(Driver.java:103)
... 12 common frames omitted
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connect(AbstractConnectProtocol.java:392)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1013)
... 14 common frames omitted
远程数据库异常：
java.sql.SQLTransientConnectionException: xxx.db - Connection is not available, request timed out after 5003ms.
at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource.createConnection(HikariCPJdbcDataSource.scala:18)
at slick.jdbc.JdbcBackend$BaseSession.<init>(JdbcBackend.scala:439)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:47)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$class.acquireSession(BasicBackend.scala:218)
at slick.jdbc.JdbcBackend$DatabaseDef.acquireSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$$anon.run(BasicBackend.scala:239)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
至少在本地情况下，看起来肯定是：
- 端口配置错误。或者，
- 池大小超过了数据库的最大值。或者，
- username/password 不正确。或者，
- 用户没有连接到服务器或指定数据库的权限。
java.net.ConnectException: Connection refused 是套接字级别的错误。通常，这表明指定端口上没有服务器 运行，或者服务器出于某些其他原因（安全等）拒绝连接。
您可以仔细检查所有 driver/datasource 属性以验证它们是否正确。如果您可以 post 您的 HikariCP 配置，它可能会有用。
免责声明：我是 mariadb 开发者之一
在1.6.0版本中，"usePipelineAuth"选项更改了连接实现。
During connection, different queries are executed. When option is active those queries are send using pipeline (all queries are send, then only all results are reads), permitting faster connection creation.
这样可以节省网络延迟。
禁用此选项可能会解决您的问题。
同时，我在 mariadb 跟踪器上创建了一个 issue。
我已将 "org.mariadb.jdbc" % "mariadb-java-client" 连接器从 1.5.9 升级到 1.6.0，但由于超时异常，我在连接到数据库时开始失败。
我将它与 HikariCP 2.5.1 和 Slick 3.2.0 一起使用。如果我再次将更改回滚到 MariaDB 连接器 1.5.9，它会成功连接，如果我尝试直接升级到 2.0.1，它会失败并出现同样的错误。
问题是基于 the 1.6.0 changelog, we shouldn't experiment any breaking change. But according to the differences in the GitHub repository，它可能比更改日志中指定的修改更多：/
本地数据库异常：
java.sql.SQLTransientConnectionException: xxx.db - Connection is not available, request timed out after 5006ms.
at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource.createConnection(HikariCPJdbcDataSource.scala:18)
at slick.jdbc.JdbcBackend$BaseSession.<init>(JdbcBackend.scala:439)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:47)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$class.acquireSession(BasicBackend.scala:218)
at slick.jdbc.JdbcBackend$DatabaseDef.acquireSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$$anon.run(BasicBackend.scala:239)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=localhost)(port=3306)(type=master) : Connection refused
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:156)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:118)
at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.throwException(ExceptionMapper.java:92)
at org.mariadb.jdbc.Driver.connect(Driver.java:108)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:193)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:430)
at com.zaxxer.hikari.pool.HikariPool.access0(HikariPool.java:64)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:570)
at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:563)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 3 common frames omitted
Caused by: java.sql.SQLException: Could not connect to address=(host=localhost)(port=3306)(type=master) : Connection refused
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1020)
at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:481)
at org.mariadb.jdbc.Driver.connect(Driver.java:103)
... 12 common frames omitted
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connect(AbstractConnectProtocol.java:392)
at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1013)
... 14 common frames omitted
远程数据库异常：
java.sql.SQLTransientConnectionException: xxx.db - Connection is not available, request timed out after 5003ms.
at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
at slick.jdbc.hikaricp.HikariCPJdbcDataSource.createConnection(HikariCPJdbcDataSource.scala:18)
at slick.jdbc.JdbcBackend$BaseSession.<init>(JdbcBackend.scala:439)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:47)
at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$class.acquireSession(BasicBackend.scala:218)
at slick.jdbc.JdbcBackend$DatabaseDef.acquireSession(JdbcBackend.scala:38)
at slick.basic.BasicBackend$DatabaseDef$$anon.run(BasicBackend.scala:239)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
至少在本地情况下，看起来肯定是：
- 端口配置错误。或者，
- 池大小超过了数据库的最大值。或者，
- username/password 不正确。或者，
- 用户没有连接到服务器或指定数据库的权限。
java.net.ConnectException: Connection refused 是套接字级别的错误。通常，这表明指定端口上没有服务器 运行，或者服务器出于某些其他原因（安全等）拒绝连接。
您可以仔细检查所有 driver/datasource 属性以验证它们是否正确。如果您可以 post 您的 HikariCP 配置，它可能会有用。
免责声明：我是 mariadb 开发者之一
在1.6.0版本中，"usePipelineAuth"选项更改了连接实现。
During connection, different queries are executed. When option is active those queries are send using pipeline (all queries are send, then only all results are reads), permitting faster connection creation.
这样可以节省网络延迟。
禁用此选项可能会解决您的问题。
同时，我在 mariadb 跟踪器上创建了一个 issue。