Skip to content

Update slow-extended.md #370

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Aug 14, 2024
Merged

Update slow-extended.md #370

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 2 additions & 3 deletions docs/slow-extended.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -68,10 +68,9 @@ Specifies that only a fraction of `session/query` should be logged. Logging is e
Logging all queries might consume I/O bandwidth and cause the log file to grow large.


* When log_slow_rate_type is `session`, this option lets you log full sessions, so you have complete records of sessions for later analysis; but you can rate-limit the number of sessions that are logged. Note that this feature will not work well if your application uses any type of connection pooling or persistent connections. Note that you change log_slow_rate_limit in `session` mode, you should reconnect for get effect.
* When log_slow_rate_type is `session`, this option lets you log full sessions, so you have complete records of sessions for later analysis; but you can rate-limit the number of sessions that are logged. Note that this feature will not work well if your application uses any type of connection pooling or persistent connections. Note that you change log_slow_rate_limit in `session` mode, you should reconnect for get effect.


* When log_slow_rate_type is `query`, this option lets you log just some queries for later analysis. For example, if you set the value to 100, then one percent of queries will be logged.
* When log_slow_rate_type is `query`, this option lets you log just some queries for later analysis. For example, if you set the value to 100, then one percent of queries will be logged.

Note that every query has global unique `query_id` and every connection can has it own (session) log_slow_rate_limit.
Decision “log or no” calculated in following manner:
Expand Down