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Fix race on shared maps in global fields #6947

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merged 2 commits into from
May 3, 2018

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urso
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@urso urso commented Apr 25, 2018

On publish fields are added to an event in this order:

  • local/global configured fields
  • dynamic fields
  • "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the beat namespace or if dynamic fields are enabled.

The dynamic fields support has been changed to dynamically test if a clone is required or not.

@ph ph self-assigned this Apr 25, 2018
On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.
@@ -53,7 +53,8 @@ func newProcessorPipeline(
localProcessors = makeClientProcessors(config)
)

needsCopy := global.alwaysCopy || localProcessors != nil || global.processors != nil
// needsCopy := global.alwaysCopy || localProcessors != nil || global.processors != nil
needsCopy := true
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This looks weird. Is the intention to always copy? Or can the needsCopy value change to false in other parts of the code?

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oh, some leftover from testing. :(

@tsg tsg merged commit ffa812b into elastic:master May 3, 2018
@urso urso added the needs_backport PR is waiting to be backported to other branches. label May 3, 2018
@urso urso deleted the fix-fields-overwrite branch May 3, 2018 13:06
@urso urso added v6.2.5 and removed needs_backport PR is waiting to be backported to other branches. labels May 3, 2018
urso pushed a commit to urso/beats that referenced this pull request May 3, 2018
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit ffa812b)
@urso urso added the v6.3.0 label May 3, 2018
urso pushed a commit to urso/beats that referenced this pull request May 3, 2018
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit ffa812b)
ruflin pushed a commit that referenced this pull request May 4, 2018
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit ffa812b)
ruflin pushed a commit that referenced this pull request May 4, 2018
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit ffa812b)
leweafan pushed a commit to leweafan/beats that referenced this pull request Apr 28, 2023
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit 7166823)
leweafan pushed a commit to leweafan/beats that referenced this pull request Apr 28, 2023
* Fix race on shared maps in global fields

On publish fields are added to an event in this order:
- local/global configured fields
- dynamic fields
- "beat" metadata

When merging the fields, shared structures must not be overwritten or
updated concurrently. This is enforced by cloning the original fields
structure before applying updates.

This adds missing Clone operations if configured fields add new
fields to the `beat` namespace or if dynamic fields are enabled.

* Remove hard coded bool from testing

(cherry picked from commit 7166823)
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3 participants