Avoiding message store errors when creating a messaging engine

Using different combinations of parameters can create a file store or a data store according your requirements. The outcome varies in server and cluster scopes.

Server scope

When you add a server as a new bus member take note of the following:
  • If you do not specify the type of message store, then a file store is created by default. If you set Create default data source to True or supply a Data source JNDI name, then a data store is created.
  • If you choose to use a file store, then only file store attributes are presented to be specified. For example the log file directory.
  • If you choose to use a data store:
    • Only data store attributes are presented to be specified. For example the Data source JNDI name.
    • If you set Create default data source to False then you must specify a Data source JNDI name.
For more information about file store and data store refer to Administering message stores.

Cluster scope

When you add a cluster as a new bus member take note of the following:
  • If you choose to use a file store:
    • You must not use the default log file, permanent store file and temporary store file directories because they are not suitable for cluster engines.
    • You must specify the Log directory, Permanent store directory and Temporary store directory to be at locations that all members of the cluster can access on your file system.
  • If you choose to use a data store:
    • You must not use the default data source because it is not suitable for cluster engines.
    • You must specify the Data source JNDI name of an existing data source.
For more information about file store and data store refer to Administering message stores.
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