How to fix error "HikariPool-3 - Connection is not available, request timed out after 100005ms." : Portal

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Xavier Meunier

started a topic about 2 years ago

How to fix error "HikariPool-3 - Connection is not available, request timed out after 100005ms."

Best Answer

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Stéphanie FOURRIER said almost 2 years ago

Before 2023.1.0, the runtime customization file called 'engineParameters.xml' defined an "enableConnectionPoolForJdbcDatabases" by default to "false".
Therefore, the default behaviour for runtime connections to JDBC databases is NON-pooling.

Starting from 2023.1.0, there is no more "enableConnectionPoolForJdbcDatabases" parameter in the 'engineParameters.xml' runtime file (see https://www.semarchy.com/doc/semarchy-xdi/xdi/2023.1/Install/release-notes/2023.1.html#_semarchy_xdi_runtime_jdbc_connections)

The pooling behaviour is supposed to be set from metadata, and pooling is enabled by default.

As a consequence, upgrading to 2023.1, if you didn't use connection pooling in your previous version, then you may encounter connection error such as

"HikariPool-3 - Connection is not available, request timed out after 100005ms."

As pooling is a core functionnality for an ETL/ELT tool to be able to release database sessions when no more used, you shouldn't inactivate the pooling options on the metadata.

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Stéphanie FOURRIER

said almost 2 years ago

Answer

Before 2023.1.0, the runtime customization file called 'engineParameters.xml' defined an "enableConnectionPoolForJdbcDatabases" by default to "false".
Therefore, the default behaviour for runtime connections to JDBC databases is NON-pooling.

Starting from 2023.1.0, there is no more "enableConnectionPoolForJdbcDatabases" parameter in the 'engineParameters.xml' runtime file (see https://www.semarchy.com/doc/semarchy-xdi/xdi/2023.1/Install/release-notes/2023.1.html#_semarchy_xdi_runtime_jdbc_connections)

The pooling behaviour is supposed to be set from metadata, and pooling is enabled by default.

As a consequence, upgrading to 2023.1, if you didn't use connection pooling in your previous version, then you may encounter connection error such as

"HikariPool-3 - Connection is not available, request timed out after 100005ms."

As pooling is a core functionnality for an ETL/ELT tool to be able to release database sessions when no more used, you shouldn't inactivate the pooling options on the metadata.

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Emmanuel Chrisment

said almost 2 years ago

Hi Stéphanie,

This is a clear explanation, thank you. But could you please explain how one could solve this issue "HikariPool-3 - Connection is not available, request timed out after 100005ms." when it arises ?

Best regards,

Emmanuel Chrisment

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Stéphanie FOURRIER

said almost 2 years ago

Hi Emmanuel,

You will need to adapt the property values for your pool according to your actual needs. A description of the properties is available here: https://www.semarchy.com/doc/semarchy-xdi/xdi/2023.3/Install/configure-runtime-parameters-reference.html#_log_database_parameters and an interesting article is worth to read about connection pooling: https://github.com/brettwooldridge/HikariCP/wiki/About-Pool-Sizing

We are happy to help with your specific use and find what could be the best values for you inside the existing support ticket that you opened a few months back.

Best regards,

Stéphanie.