August 2017
Intermediate to advanced
1330 pages
56h 17m
English
Content preview from ServiceNow: Building Powerful Workflows
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Classifying slow queries
By determining the total execution time, you can see where the database spends its time. Any query with a total execution time of more than 5 seconds is recorded. In order to provide a representation of what queries are doing, example SQL queries, URLs, and stack traces are provided.
A stack trace indicates what the Java platform is doing at that moment. Each line from the bottom up lists which classes and methods are being stepped through. As one method calls another, another line is added.
You can break down the entries in the slow query log into several categories listed here:
- Very frequent and very fast queries: These will have a high execution count but a low average execution time. These tend to be internal ...
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