[8.x] ESQL: Enable visualizing a query profile (#124361) #124759
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
To understand query performance, we often peruse the output of `_query`-requests run with `"profile": true`. This is difficult when the query runs in a large cluster with many nodes and shards, or in case of CCQ. This adds an option to visualize a query using Chromium's/Chrome's builtin `about:tracing` - or, for even better visuals and querying the different drivers via SQL, perfetto (c.f. https://ui.perfetto.dev/). To use, save the JSON output of a query run with `"profile": true` to a file, like `output.json` and then invoke the following Gradle task: ``` ./gradlew x-pack:plugin:esql:tools:parseProfile --args='~/output.json ~/parsed_profile.json' ``` Either open `about:tracing` in Chromium/Chrome  Or head over to https://ui.perfetto.dev (build locally in case of potentially sensitive data in the profille):  Every slice is a driver, the colors indicating the ratio of cpu time over total time. - In Perfetto, essentials like duration, cpu duration, timestamp and a few others can be queried via SQL - this allows e.g. querying for all drivers that spent more than 50% of their time waiting and other fun things.  - Details about a driver, esp. which operators it ran, are available when clicking the driver's slice.  (cherry picked from commit fc4d8d6) # Conflicts: # x-pack/plugin/esql/qa/server/single-node/src/javaRestTest/java/org/elasticsearch/xpack/esql/qa/single_node/RestEsqlIT.java
alex-spies
added
>non-issue
:Analytics/ES|QL
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport
This will backport the following commits from
mainto8.x: