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Hakari Pool - Failed to initialize pool: ConnectionStringHostListProvider does not support identifyConnection #1314

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aleruz-dt opened this issue Mar 7, 2025 · 5 comments
Open

Hakari Pool - Failed to initialize pool: ConnectionStringHostListProvider does not support identifyConnection #1314

aleruz-dt opened this issue Mar 7, 2025 · 5 comments
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bug Something isn't working

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@aleruz-dt
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Describe the bug

While upgrading the library from 2.5.4 to 2.5.5, I got the following error:
com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: ConnectionStringHostListProvider does not support identifyConnection

Hikari is in the latest version https://mvnrepository.com/artifact/com.zaxxer/HikariCP/6.2.1

Expected Behavior

The driver works as before with Hikari.

What plugins are used? What other connection properties were set?

default settings

Current Behavior

java.lang.UnsupportedOperationException: ConnectionStringHostListProvider does not support identifyConnection. at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.hostlistprovider.ConnectionStringHostListProvider.identifyConnection(ConnectionStringHostListProvider.java:119) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.PluginServiceImpl.identifyConnection(PluginServiceImpl.java:723) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.PluginServiceImpl.fillAliases(PluginServiceImpl.java:752) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.plugin.AuroraConnectionTrackerPlugin.connect(AuroraConnectionTrackerPlugin.java:101) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.lambda$connect$6(ConnectionPluginManager.java:390) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.lambda$null$3(ConnectionPluginManager.java:278) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.executeWithTelemetry(ConnectionPluginManager.java:246) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.lambda$makePluginChainFunc$4(ConnectionPluginManager.java:277) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.executeWithSubscribedPlugins(ConnectionPluginManager.java:236) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ConnectionPluginManager.connect(ConnectionPluginManager.java:387) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.wrapper.ConnectionWrapper.init(ConnectionWrapper.java:161) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.wrapper.ConnectionWrapper.<init>(ConnectionWrapper.java:105) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ds.AwsWrapperDataSource.createConnectionWrapper(AwsWrapperDataSource.java:255) at aws.advanced.jdbc.wrapper@2.5.5/software.amazon.jdbc.ds.AwsWrapperDataSource.getConnection(AwsWrapperDataSource.java:210) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:367) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:205) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:484) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:572) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:101) at com.zaxxer.hikari@6.2.1/com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:111)

Reproduction Steps

DataSourceClassname: software.amazon.jdbc.ds.AwsWrapperDataSource
DataSourceProperties: targetDataSourceClassName:org.postgresql.ds.PGSimpleDataSource

Possible Solution

No response

Additional Information/Context

No response

The AWS Advanced JDBC Driver version used

2.5.5

JDK version used

openjdk version "21.0.2" 2024-01-16 LTS OpenJDK Runtime Environment Temurin-21.0.2+13 (build 21.0.2+13-LTS) OpenJDK 64-Bit Server VM Temurin-21.0.2+13 (build 21.0.2+13-LTS, mixed mode)

Operating System and version

mac / linux
@aleruz-dt aleruz-dt added the bug Something isn't working label Mar 7, 2025
@sergiyvamz
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Hi @aleruz-dt

Thank you for reaching out with this issue. Could you please provide driver logs? This will help troubleshoot the issue. For reference: https://github.com/aws/aws-advanced-jdbc-wrapper/blob/main/docs/using-the-jdbc-driver/UsingTheJdbcDriver.md#logging

Also, to clarify, are you only seeing this issue with the 2.5.5 driver and Hikari 6.2.1? e.g., Does Wrapper 2.5.4 work correctly with Hikari 6.2.1?

From what I can see from the provided exception, the driver hasn't identified the database dialect properly. As a quick remedy for the issue, I can suggest to add an additional configuration parameter wrapperDialect=auroa-pg. For reference: https://github.com/aws/aws-advanced-jdbc-wrapper/blob/main/docs/using-the-jdbc-driver/DatabaseDialects.md

@Kennelly57
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Kennelly57 commented Mar 7, 2025 •
edited
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I am also seeing this issue using Dropwizard + Hibernate and an underlying Tomcat pool, so it seems not limited to only Hikari.

I can confirm that 2.5.4 works, and 2.5.5 does not work. Setting the wrapperDialect also does not fix the problem. Attaching trace level logs.

TRACE [2025-03-07 20:24:23,593] software.amazon.jdbc.Driver: Opening connection to jdbc:aws-wrapper:postgresql://localhost:5432/dev-db
TRACE [2025-03-07 20:24:23,596] software.amazon.jdbc.Driver: Connecting with properties: 
[hibernate.hbm2ddl.auto] update
[hibernate.type.preferred_instant_jdbc_type] timestamp
[wrapperDialect] pg
[hibernate.dialect] com.xyz.util.db.aws.AwsCompliantPostgresDialect
[hibernate.type.preferred_duration_jdbc_type] bigint
[org.hibernate.envers.revision_field_name] revision
[database] dev-db
[password] ***
[org.hibernate.envers.store_data_at_delete] true
[wrapperDriverName] PostgreSQL JDBC Driver
[wrapperPlugins] auroraConnectionTracker,failover2,efm2,driverMetaData
[connectTimeout] 10000
[socketTimeout] 5000
[org.hibernate.envers.audit_strategy_validity_revend_timestamp_field_name] revisionendtimestamp
[org.hibernate.envers.audit_strategy_validity_end_rev_field_name] revisionend
[loginTimeout] 10000
[autoCommit] false
[charSet] UTF-8
[org.hibernate.envers.audit_strategy_validity_store_revend_timestamp] true
[hibernate.id.db_structure_naming_strategy] legacy
[org.hibernate.envers.audit_strategy] org.hibernate.envers.strategy.ValidityAuditStrategy
[org.hibernate.envers.audit_table_suffix] _history
[failoverTimeoutMs] 180000
[wrapperTargetDriverDialect] pgjdbc
[user] postgres
[org.hibernate.envers.revision_type_field_name] revisiontype
TRACE [2025-03-07 20:24:23,605] software.amazon.jdbc.targetdriverdialect.TargetDriverDialectManager: Target driver dialect set to: 'pgjdbc', software.amazon.jdbc.targetdriverdialect.PgTargetDriverDialect@566fe83c.
TRACE [2025-03-07 20:24:23,615] software.amazon.jdbc.dialect.DialectManager: Current dialect: pg, software.amazon.jdbc.dialect.PgDialect@3b8507df, canUpdate: false
TRACE [2025-03-07 20:24:23,618] software.amazon.jdbc.ConnectionPluginChainBuilder: Plugins order has been rearranged. The following order is in effect: DriverMetaDataConnectionPluginFactory, AuroraConnectionTrackerPluginFactory, FailoverConnectionPluginFactory, HostMonitoringConnectionPluginFactory
DEBUG [2025-03-07 20:24:23,632] software.amazon.jdbc.plugin.failover2.FailoverConnectionPlugin: failoverMode=STRICT_WRITER
TRACE [2025-03-07 20:24:23,633] software.amazon.jdbc.DriverConnectionProvider: Connecting to jdbc:postgresql://localhost:5432/dev-db
with properties: 
[charSet] UTF-8
[org.hibernate.envers.audit_strategy_validity_store_revend_timestamp] true
[hibernate.hbm2ddl.auto] update
[hibernate.type.preferred_instant_jdbc_type] timestamp
[hibernate.id.db_structure_naming_strategy] legacy
[hibernate.dialect] com.xyz.util.db.aws.AwsCompliantPostgresDialect
[tcpKeepAlive] false
[hibernate.type.preferred_duration_jdbc_type] bigint
[org.hibernate.envers.revision_field_name] revision
[org.hibernate.envers.audit_strategy] org.hibernate.envers.strategy.ValidityAuditStrategy
[org.hibernate.envers.audit_table_suffix] _history
[password] ***
[org.hibernate.envers.store_data_at_delete] true
[connectTimeout] 10
[socketTimeout] 5
[org.hibernate.envers.audit_strategy_validity_revend_timestamp_field_name] revisionendtimestamp
[org.hibernate.envers.audit_strategy_validity_end_rev_field_name] revisionend
[loginTimeout] 10
[autoCommit] false
[user] postgres
[org.hibernate.envers.revision_type_field_name] revisiontype
TRACE [2025-03-07 20:24:23,679] software.amazon.jdbc.dialect.DialectManager: Current dialect: pg, software.amazon.jdbc.dialect.PgDialect@3b8507df, canUpdate: false
ERROR [2025-03-07 20:24:23,686] org.apache.tomcat.jdbc.pool.ConnectionPool: Unable to create initial connections of pool.
! java.lang.UnsupportedOperationException: ConnectionStringHostListProvider does not support identifyConnection.
! at software.amazon.jdbc.hostlistprovider.ConnectionStringHostListProvider.identifyConnection(ConnectionStringHostListProvider.java:119)
! at software.amazon.jdbc.PluginServiceImpl.identifyConnection(PluginServiceImpl.java:723)
! at software.amazon.jdbc.PluginServiceImpl.fillAliases(PluginServiceImpl.java:752)
! at software.amazon.jdbc.plugin.AuroraConnectionTrackerPlugin.connect(AuroraConnectionTrackerPlugin.java:101)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$connect$6(ConnectionPluginManager.java:390)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$null$3(ConnectionPluginManager.java:278)
! at software.amazon.jdbc.ConnectionPluginManager.executeWithTelemetry(ConnectionPluginManager.java:246)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$makePluginChainFunc$4(ConnectionPluginManager.java:277)
! at software.amazon.jdbc.ConnectionPluginManager.executeWithSubscribedPlugins(ConnectionPluginManager.java:236)
! at software.amazon.jdbc.ConnectionPluginManager.connect(ConnectionPluginManager.java:387)
! at software.amazon.jdbc.wrapper.ConnectionWrapper.init(ConnectionWrapper.java:161)
! at software.amazon.jdbc.wrapper.ConnectionWrapper.<init>(ConnectionWrapper.java:105)
! at software.amazon.jdbc.Driver.connect(Driver.java:219)
! at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:346)
! ... 36 common frames omitted
! Causing: java.sql.SQLException: ConnectionStringHostListProvider does not support identifyConnection.
! at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:359)
! at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:227)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:779)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:707)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:506)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:155)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
! at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:126)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:467)
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcIsolationDelegate.delegateWork(JdbcIsolationDelegate.java:61)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.getJdbcEnvironmentUsingJdbcMetadata(JdbcEnvironmentInitiator.java:320)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:129)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:81)
! at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:130)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:238)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:215)
! at org.hibernate.boot.model.relational.Database.<init>(Database.java:45)
! at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.getDatabase(InFlightMetadataCollectorImpl.java:226)
! at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:194)
! at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:171)
! at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:129)
! at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:449)
! at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:101)
! at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:949)
! at io.dropwizard.hibernate.SessionFactoryFactory.buildSessionFactory(SessionFactoryFactory.java:103)
! at io.dropwizard.hibernate.SessionFactoryFactory.build(SessionFactoryFactory.java:52)
! at io.dropwizard.hibernate.SessionFactoryFactory.build(SessionFactoryFactory.java:42)
! at io.dropwizard.hibernate.HibernateBundle.run(HibernateBundle.java:73)
! at io.dropwizard.core.setup.Bootstrap.run(Bootstrap.java:199)
! at io.dropwizard.core.cli.EnvironmentCommand.run(EnvironmentCommand.java:65)
! at io.dropwizard.core.cli.ConfiguredCommand.run(ConfiguredCommand.java:98)
! at io.dropwizard.core.cli.Cli.run(Cli.java:78)
! at io.dropwizard.core.Application.run(Application.java:94)
! at com.sage.admin.server.AdminServiceApplication.main(AdminServiceApplication.java:267)
WARN  [2025-03-07 20:24:23,688] org.hibernate.engine.jdbc.spi.SqlExceptionHelper: SQL Error: 0, SQLState: null
ERROR [2025-03-07 20:24:23,688] org.hibernate.engine.jdbc.spi.SqlExceptionHelper: ConnectionStringHostListProvider does not support identifyConnection.
WARN  [2025-03-07 20:24:23,688] org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator: HHH000342: Could not obtain connection to query metadata
! java.lang.UnsupportedOperationException: ConnectionStringHostListProvider does not support identifyConnection.
! at software.amazon.jdbc.hostlistprovider.ConnectionStringHostListProvider.identifyConnection(ConnectionStringHostListProvider.java:119)
! at software.amazon.jdbc.PluginServiceImpl.identifyConnection(PluginServiceImpl.java:723)
! at software.amazon.jdbc.PluginServiceImpl.fillAliases(PluginServiceImpl.java:752)
! at software.amazon.jdbc.plugin.AuroraConnectionTrackerPlugin.connect(AuroraConnectionTrackerPlugin.java:101)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$connect$6(ConnectionPluginManager.java:390)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$null$3(ConnectionPluginManager.java:278)
! at software.amazon.jdbc.ConnectionPluginManager.executeWithTelemetry(ConnectionPluginManager.java:246)
! at software.amazon.jdbc.ConnectionPluginManager.lambda$makePluginChainFunc$4(ConnectionPluginManager.java:277)
! at software.amazon.jdbc.ConnectionPluginManager.executeWithSubscribedPlugins(ConnectionPluginManager.java:236)
! at software.amazon.jdbc.ConnectionPluginManager.connect(ConnectionPluginManager.java:387)
! at software.amazon.jdbc.wrapper.ConnectionWrapper.init(ConnectionWrapper.java:161)
! at software.amazon.jdbc.wrapper.ConnectionWrapper.<init>(ConnectionWrapper.java:105)
! at software.amazon.jdbc.Driver.connect(Driver.java:219)
! at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:346)
! ... 36 common frames omitted
! Causing: java.sql.SQLException: ConnectionStringHostListProvider does not support identifyConnection.
! at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:359)
! at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:227)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:779)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:707)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:506)
! at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:155)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
! at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
! at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:126)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:467)
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcIsolationDelegate.delegateWork(JdbcIsolationDelegate.java:61)
! ... 25 common frames omitted
! Causing: org.hibernate.exception.GenericJDBCException: unable to obtain isolated JDBC connection [ConnectionStringHostListProvider does not support identifyConnection.] [n/a]
! at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:63)
! at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:108)
! at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:94)
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcIsolationDelegate.delegateWork(JdbcIsolationDelegate.java:116)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.getJdbcEnvironmentUsingJdbcMetadata(JdbcEnvironmentInitiator.java:320)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:129)
! at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:81)
! at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:130)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:238)
! at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:215)
! at org.hibernate.boot.model.relational.Database.<init>(Database.java:45)
! at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.getDatabase(InFlightMetadataCollectorImpl.java:226)
! at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:194)
! at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:171)
! at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:129)
! at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:449)
! at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:101)
! at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:949)
! at io.dropwizard.hibernate.SessionFactoryFactory.buildSessionFactory(SessionFactoryFactory.java:103)
! at io.dropwizard.hibernate.SessionFactoryFactory.build(SessionFactoryFactory.java:52)
! at io.dropwizard.hibernate.SessionFactoryFactory.build(SessionFactoryFactory.java:42)
! at io.dropwizard.hibernate.HibernateBundle.run(HibernateBundle.java:73)
! at io.dropwizard.core.setup.Bootstrap.run(Bootstrap.java:199)
! at io.dropwizard.core.cli.EnvironmentCommand.run(EnvironmentCommand.java:65)
! at io.dropwizard.core.cli.ConfiguredCommand.run(ConfiguredCommand.java:98)
! at io.dropwizard.core.cli.Cli.run(Cli.java:78)
! at io.dropwizard.core.Application.run(Application.java:94)
! at com.sage.admin.server.AdminServiceApplication.main(AdminServiceApplication.java:267)

@amasson88
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Same issue from standalone DB migration app, using local Postgres (testcontainer).
Was working in 2.5.4.

java.lang.UnsupportedOperationException: ConnectionStringHostListProvider does not support identifyConnection.
	at software.amazon.jdbc.hostlistprovider.ConnectionStringHostListProvider.identifyConnection(ConnectionStringHostListProvider.java:119)
	at software.amazon.jdbc.PluginServiceImpl.identifyConnection(PluginServiceImpl.java:723)
	at software.amazon.jdbc.PluginServiceImpl.fillAliases(PluginServiceImpl.java:752)
	at software.amazon.jdbc.plugin.AuroraConnectionTrackerPlugin.connect(AuroraConnectionTrackerPlugin.java:101)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$connect$6(ConnectionPluginManager.java:390)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$null$3(ConnectionPluginManager.java:278)
	at software.amazon.jdbc.ConnectionPluginManager.executeWithTelemetry(ConnectionPluginManager.java:246)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$makePluginChainFunc$4(ConnectionPluginManager.java:277)
	at software.amazon.jdbc.ConnectionPluginManager.executeWithSubscribedPlugins(ConnectionPluginManager.java:236)
	at software.amazon.jdbc.ConnectionPluginManager.connect(ConnectionPluginManager.java:387)
	at software.amazon.jdbc.wrapper.ConnectionWrapper.init(ConnectionWrapper.java:161)
	at software.amazon.jdbc.wrapper.ConnectionWrapper.<init>(ConnectionWrapper.java:105)
	at software.amazon.jdbc.Driver.connect(Driver.java:219)
	at software.amazon.jdbc.DriverConnectionProvider.connect(DriverConnectionProvider.java:138)
	at software.amazon.jdbc.plugin.DefaultConnectionPlugin.connectInternal(DefaultConnectionPlugin.java:195)
	at software.amazon.jdbc.plugin.DefaultConnectionPlugin.connect(DefaultConnectionPlugin.java:178)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$connect$6(ConnectionPluginManager.java:390)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$null$0(ConnectionPluginManager.java:270)
	at software.amazon.jdbc.ConnectionPluginManager.executeWithTelemetry(ConnectionPluginManager.java:246)
	at software.amazon.jdbc.ConnectionPluginManager.lambda$makePluginChainFunc$1(ConnectionPluginManager.java:270)
	at software.amazon.jdbc.ConnectionPluginManager.executeWithSubscribedPlugins(ConnectionPluginManager.java:236)
	at software.amazon.jdbc.ConnectionPluginManager.connect(ConnectionPluginManager.java:387)
	at software.amazon.jdbc.wrapper.ConnectionWrapper.init(ConnectionWrapper.java:161)
	at software.amazon.jdbc.wrapper.ConnectionWrapper.<init>(ConnectionWrapper.java:105)
	at software.amazon.jdbc.ds.AwsWrapperDataSource.createConnectionWrapper(AwsWrapperDataSource.java:255)
	at software.amazon.jdbc.ds.AwsWrapperDataSource.getConnection(AwsWrapperDataSource.java:229)
	at software.amazon.jdbc.ds.AwsWrapperDataSource.getConnection(AwsWrapperDataSource.java:95)
....

@aleruz-dt
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@sergiyvamz worked with exact same configuration with 2.5.4, broke when renovate bot updated the version.

@monosoul
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Looking at the call chain, I guess it's this change to blame: 85e1b3c#diff-6a324c434d1b42882f5bd3191705a27875305f4adedac858cc98a0bf15277c6fR96-R99

It causes a call to software.amazon.jdbc.PluginServiceImpl#identifyConnection, which in turn calls software.amazon.jdbc.hostlistprovider.ConnectionStringHostListProvider#identifyConnection that throws an exception as it's not implemented.

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@monosoul @amasson88 @Kennelly57 @sergiyvamz @aleruz-dt