eG Monitoring
 

Measures reported by SearchIndicesTest

Exchange Search is a feature that enables fast searching of text in messages through the use of pre-built indexes. Exchange Search uses the Microsoft Search indexing engine, and creates the initial index by "crawling" all messages in mailboxes moved into an Exchange 2007 database, and updates this index based on notifications from the information store as new messages arrive. This test summarizes the performance statistics of the Microsoft Search indexing engine for every Exchange 2007 database.

 The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Mailboxes_Left_to_Crawl Indicates the number of mailboxes that are currently left to be crawled on this database. Number Ideally, the value of this measure should be low. A high value is indicative of an inefficient search indexing engine.
Outstanding_Documents Indicates the number of documents that are currently awaiting indexing. Number  
Documents_Succ_Indexed Indicates the number of documents that are being actively indexed in this database. Number  
Document_Indexing_Rate Indicates the rate at which documents were indexed successfully. Indexed/Sec  
Failed_During_Indexing Indicates the number of documents have not been indexed in this database since the last measurement period. Number A low value is desired for this measure. An unusually high value might call for further investigation.
Average_Latency_RPCs Indicates the average latency of RPCs (in milliseconds) to the Exchange Information Store service. Msecs Typically, Exchange Search makes these RPC calls for crawling purposes for the given database. High RPC latencies are quiet obviously a cause for concern, as they can slow down crawling, and ultimately the search process.
Average_indexing_time Indicates the average (in milliseconds) of how long it takes to index documents. Msecs A high value of this measure could indicate an indexing bottleneck.
Full_Crawl_Mode_Status Indicates whether this database is going through a full crawl or not, currently Status When the database is still being crawled, it has a value of 1. When the crawl is complete, the value is 0.