Remove license state listeners on closables #36308
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We have a few places where we register license state listeners on
transient components (i.e., resources that can be open and closed during
the lifecycle of the server). In one case (the opt-out query cache) we
were never removing the registered listener, effectively a terrible
memory leak. In another case, we were not un-registered the listener
that we registered, since we were not referencing the same instance of
Runnable. This commit does two things:
- introduces a marker interface LicenseStateListener so that it is
easier to identify these listeners in the codebase and avoid classes
that need to register a license state listener from having to
implement Runnable which carries a different semantic meaning than
we want here
- fixes the two places where we are currently leaking license state
listeners
jasontedor
added
>bug
v7.0.0
:Security/Security
|
Pinging @elastic/es-security |
|
Oh, thanks @DaveCTurner, I had not seen those! I will add that to the top-level comment so they are closed when this is merged. |
This was referenced Dec 6, 2018
|
@elasticmachine run gradle build tests 1 |
jasontedor
added a commit
that referenced
this pull request
Dec 6, 2018
We have a few places where we register license state listeners on
transient components (i.e., resources that can be open and closed during
the lifecycle of the server). In one case (the opt-out query cache) we
were never removing the registered listener, effectively a terrible
memory leak. In another case, we were not un-registered the listener
that we registered, since we were not referencing the same instance of
Runnable. This commit does two things:
- introduces a marker interface LicenseStateListener so that it is
easier to identify these listeners in the codebase and avoid classes
that need to register a license state listener from having to
implement Runnable which carries a different semantic meaning than
we want here
- fixes the two places where we are currently leaking license state
listeners
jasontedor
added a commit
that referenced
this pull request
Dec 6, 2018
We have a few places where we register license state listeners on
transient components (i.e., resources that can be open and closed during
the lifecycle of the server). In one case (the opt-out query cache) we
were never removing the registered listener, effectively a terrible
memory leak. In another case, we were not un-registered the listener
that we registered, since we were not referencing the same instance of
Runnable. This commit does two things:
- introduces a marker interface LicenseStateListener so that it is
easier to identify these listeners in the codebase and avoid classes
that need to register a license state listener from having to
implement Runnable which carries a different semantic meaning than
we want here
- fixes the two places where we are currently leaking license state
listeners
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We have a few places where we register license state listeners on transient components (i.e., resources that can be open and closed during the lifecycle of the server). In one case (the opt-out query cache) we were never removing the registered listener, effectively a terrible memory leak. In another case, we were not un-registered the listener that we registered, since we were not referencing the same instance of Runnable. This commit does two things:
Relates #33328
Closes #35627
Closes #35628