File System: Data Segment Lock Requests Columns - Advanced SQL Engine - Teradata Database

Resource Usage Macros and Tables

Product
Advanced SQL Engine
Teradata Database
Release Number
17.05
17.00
Published
June 2020
Language
English (United States)
Last Update
2021-01-23
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B035-1099
lifecycle
previous
Product Category
Teradata Vantage™

These columns summarize the number of lock requests, blocks, and deadlocks on a disk segment.

The locks referred to here are short term file system locks and are distinct from transaction locks, which are counted in the fields documented in General Concurrency Control Database Locks Columns.

For more information, see “Data Segment Lock Requests Columns” in ResUsageSvpr Table Overview.

Column Name Mode Description Data Type
FileLockBlocks count Number of lock requests that were blocked. FLOAT
FileLockDeadlocks count Number of deadlocks detected on lock requests. FLOAT
FileLockEnters count Number of times a lock was requested. FLOAT