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  1. Jira Platform Cloud
  2. JRACLOUD-32051

Support Tomcat 7 Connection Pooling

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      The work to support Tomcat 7 did not include switching to the recommended and long term (tomcat 8+) connection pool (See the apache tomcat site http://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html).

      When I use this with Greenhopper the batch upgrade process hangs (this also happened on the importing a backup) with application deadlocks and maybe instead of failing it is catching and retrying the transactions. 

      > org.ofbiz.core.entity.GenericDataSourceException: SQL Exception while executing the following:INSERT INTO cwd_group (ID, group_name, lower_group_name, active, local, created_date, updated_date, description, lower_description, group_type, directory_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) (Deadlock found when trying to get lock; try restarting transaction)

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