Monitoring

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Teiid provides information that represent the current operational state. This information can be useful in managing load, through-put and tuning. The data that is available can be accessed using the different administrative tools (i.e., Admin Console, AdminShell or Admin API).

The following is information that details the current load:

Name Description
Current Sessions List current sessions connected
Current Request List current executing requests
Current Transactions List current executing transactions
Query Plan Retrieves the query plan for a specific request

There are administrative options for terminating sessions, queries and transactions. See the Administrative Guide for how to accomplish that task.

The following are data that is meant to provide measurable information:

Name Description Comment
Long Running Queries List current executing queries that have surpassed the query threshold (query-threshold-in-seconds). Setup alert to warn when one or more queries are consuming resources for an extended period of time. If running too long, an option is to cancel request.
Prepared Plan Cache Size Current number of entries in cache.  
Prepared Plan Cache # of Requests Total number of requests made against cache.  
Prepared Plan Cache Hit Ratio % Percentage of positive cache hits  
ResultSet Cache Size Current number of entries in cache.  
ResultSet Cache # of Requests Total number of requests made against cache.  
ResultSet Cache Hit Ratio % Percentage of positive cache hits.  
Query Count Indicates the number of queries currently active.  
Session Count Indicates the number of user connections currently active To ensure number of sessions are not restricted at peak times, check max-sessions-allowed (default 5000) is set accordingly and review sessions-expiration-timelimit
Used Buffer Space in MB Indicates amount of storage space currently used by buffer files Setup alert to warn when used buffer space is at an unacceptable level, based on the setting of max-buffer-space
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