Một điều cần nhớ khi cấu hình jboss là đôi khi tài liệu tốt nhất nằm trong các dự án cho các thành phần riêng lẻ. Trong trường hợp cài đặt nguồn dữ liệu, tôi luôn yêu cầu mọi người xem tài liệu về IronJacamar: http://www.ironjacamar.org/doc/userguide/1.0/en-US/html_single/
cho những gì bạn muốn làm, các cài đặt này sẽ hoạt động:
<validation>
<valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLValidConnectionChecker"/>
<exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.postgres.PostgreSQLExceptionSorter"/>
<!-- I don't know what this does but someone on my DevOps
team said to set it this way. :) -->
<validate-on-match>false</validate-on-match>
<!-- validate the connection using a background
thread rather than right before you try to use the connection -->
<background-validation>true</background-validation>
<!-- sets the frequency the background thread will check each connection.
The lower this setting, the quicker it will find a bad connection
but it will be more chatty sending the validations to the server -->
<background-validation-millis>60000</background-validation-millis>
<!-- fast fail will mark all the connections invalid as soon as
it finds a bad one. This will make it clear the pool quicker
if all connections are reset at once such as a restart. Fast
fail would be trouble though if you had a setup where the database
sometimes selectively kills a single connection, such as killing long
running queries. -->
<use-fast-fail>true</use-fast-fail>
</validation>