Introduction to Persistence Services

A broker’s persistent data store holds information about physical destinations, durable subscriptions, messages, transactions, and acknowledgments.

Message Queue supports both file-based and JDBC-based persistence modules, as shown in the following figure. File-based persistence uses individual files to store persistent data; JDBC-based persistence uses the Java Database Connectivity (JDBC) interface to connect the broker to a JDBC-based data store. While file-based persistence is generally faster than JDBC-based persistence, some users prefer the redundancy and administrative control provided by a JDBC database. The broker configuration property imq.persist.store (see Table 16–4) specifies which of the two persistence modules (file or jdbc) to use.

Figure 8–1 Persistent Data Stores

Message Queue brokers are configured by default to use a file-based persistent store, but you can reconfigure them to plug in any data store accessible through a JDBC-compliant driver. The broker configuration property imq.persist.store (see Table 16–4) specifies which of the two forms of persistence to use.