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This test monitors the health of the Java Message Service (JMS) store that the Oracle Enterprise Messaging Service (OEMS) supports. OEMS is a standards-based (JMS, JCA) messaging platform offering a comprehensive set of messaging and integration features for developing and deploying distributed applications in a service-oriented architecture (SOA) environment. OEMS also forms the underlying messaging infrastructure for Oracle's Enterprise Service Bus (ESB) and the BPEL Process Manager components of Oracle Fusion Middleware. The measures made by this test are as follows:

Measurement	Description	Measurement Unit
Messages_count	The total number of messages in the store - both committed and rolledback	Number
Messages_dequeued	The number of dequeued messages	Number
Messages_discarded	The number of messages discarded from the store	Number
Messages_enqueued	The number of enqueued messages	Number
Messages_expired	The number of expired messages	Number
Messages_paged_in	The number of paged in messages	Number
Messages_paged_out	The number of paged out messages	Number
Messages_pending	The number of messages pending completion	Number
Messages_recovered	The number of recovered messages	Number
Messages_rolledback	The number of messages that were rolled back	Number
Store_size	The size of the JMS store	MB