[Segment Replication] Merge back to main tracking issue. #2355
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This is a part of the process of merging our feature branch - feature/segment-replication - back into main by re-PRing our changes from the feature branch. GatedAutoCloseable currently wraps a subclass of RefCounted. Segment replication adds another subclass, but this also wraps RefCounted. Both subclasses have the same shutdown hook - decRef. This change makes the superclass less generic to increase code convergence. The breakdown of the plan to merge segment-replication to main is detailed in opensearch-project#2355 Segment replication design proposal - opensearch-project#2229 Signed-off-by: Kartik Ganesh <[email protected]>
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* Refactoring GatedAutoCloseable to AutoCloseableRefCounted This is a part of the process of merging our feature branch - feature/segment-replication - back into main by re-PRing our changes from the feature branch. GatedAutoCloseable currently wraps a subclass of RefCounted. Segment replication adds another subclass, but this also wraps RefCounted. Both subclasses have the same shutdown hook - decRef. This change makes the superclass less generic to increase code convergence. The breakdown of the plan to merge segment-replication to main is detailed in #2355 Segment replication design proposal - #2229 Signed-off-by: Kartik Ganesh <[email protected]> * Minor refactoring in RecoveryState This change makes two minor updates to RecoveryState - 1. The readRecoveryState API is removed because it can be replaced by an invocation of the constructor 2. The class members of the Timer inner class are changed to private, and accesses are only through the public APIs Signed-off-by: Kartik Ganesh <[email protected]> * Update RecoveryTargetTests to test Timer subclasses deterministically This change removes the use of RandomBoolean in testing the Timer classes and creates a dedicated unit test for each. The common test logic is shared via a private method. Signed-off-by: Kartik Ganesh <[email protected]> * Move the RecoveryState.Timer class to a top-level class This will eventually be reused across both replication use-cases - peer recovery and segment replication. Signed-off-by: Kartik Ganesh <[email protected]> * Further update of timer tests in RecoveryTargetTests Removes a non-deterministic code path around stopping the timer, and avoids assertThat (deprecated) Signed-off-by: Kartik Ganesh <[email protected]> * Rename to ReplicationTimer Signed-off-by: Kartik Ganesh <[email protected]> * Remove RecoveryTargetTests assert on a running timer Trying to serialize and deserialize a running Timer instance, and then checking for equality leads to flaky test failures when the ser/deser takes time. Signed-off-by: Kartik Ganesh <[email protected]>
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* Refactoring GatedAutoCloseable to AutoCloseableRefCounted This is a part of the process of merging our feature branch - feature/segment-replication - back into main by re-PRing our changes from the feature branch. GatedAutoCloseable currently wraps a subclass of RefCounted. Segment replication adds another subclass, but this also wraps RefCounted. Both subclasses have the same shutdown hook - decRef. This change makes the superclass less generic to increase code convergence. The breakdown of the plan to merge segment-replication to main is detailed in #2355 Segment replication design proposal - #2229 Signed-off-by: Kartik Ganesh <[email protected]> * Minor refactoring in RecoveryState This change makes two minor updates to RecoveryState - 1. The readRecoveryState API is removed because it can be replaced by an invocation of the constructor 2. The class members of the Timer inner class are changed to private, and accesses are only through the public APIs Signed-off-by: Kartik Ganesh <[email protected]> * Update RecoveryTargetTests to test Timer subclasses deterministically This change removes the use of RandomBoolean in testing the Timer classes and creates a dedicated unit test for each. The common test logic is shared via a private method. Signed-off-by: Kartik Ganesh <[email protected]> * Move the RecoveryState.Timer class to a top-level class This will eventually be reused across both replication use-cases - peer recovery and segment replication. Signed-off-by: Kartik Ganesh <[email protected]> * Further update of timer tests in RecoveryTargetTests Removes a non-deterministic code path around stopping the timer, and avoids assertThat (deprecated) Signed-off-by: Kartik Ganesh <[email protected]> * Rename to ReplicationTimer Signed-off-by: Kartik Ganesh <[email protected]> * Remove RecoveryTargetTests assert on a running timer Trying to serialize and deserialize a running Timer instance, and then checking for equality leads to flaky test failures when the ser/deser takes time. Signed-off-by: Kartik Ganesh <[email protected]> (cherry picked from commit c7c410a)
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…#3014) * Refactoring GatedAutoCloseable to AutoCloseableRefCounted This is a part of the process of merging our feature branch - feature/segment-replication - back into main by re-PRing our changes from the feature branch. GatedAutoCloseable currently wraps a subclass of RefCounted. Segment replication adds another subclass, but this also wraps RefCounted. Both subclasses have the same shutdown hook - decRef. This change makes the superclass less generic to increase code convergence. The breakdown of the plan to merge segment-replication to main is detailed in #2355 Segment replication design proposal - #2229 Signed-off-by: Kartik Ganesh <[email protected]> * Minor refactoring in RecoveryState This change makes two minor updates to RecoveryState - 1. The readRecoveryState API is removed because it can be replaced by an invocation of the constructor 2. The class members of the Timer inner class are changed to private, and accesses are only through the public APIs Signed-off-by: Kartik Ganesh <[email protected]> * Update RecoveryTargetTests to test Timer subclasses deterministically This change removes the use of RandomBoolean in testing the Timer classes and creates a dedicated unit test for each. The common test logic is shared via a private method. Signed-off-by: Kartik Ganesh <[email protected]> * Move the RecoveryState.Timer class to a top-level class This will eventually be reused across both replication use-cases - peer recovery and segment replication. Signed-off-by: Kartik Ganesh <[email protected]> * Further update of timer tests in RecoveryTargetTests Removes a non-deterministic code path around stopping the timer, and avoids assertThat (deprecated) Signed-off-by: Kartik Ganesh <[email protected]> * Rename to ReplicationTimer Signed-off-by: Kartik Ganesh <[email protected]> * Remove RecoveryTargetTests assert on a running timer Trying to serialize and deserialize a running Timer instance, and then checking for equality leads to flaky test failures when the ser/deser takes time. Signed-off-by: Kartik Ganesh <[email protected]> (cherry picked from commit c7c410a) Co-authored-by: Kartik Ganesh <[email protected]>
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This was referenced Jun 16, 2022
This was referenced Jun 23, 2022
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Closing bc merge is complete, recovery path updates is not a merge. Tracked in meta issue. |
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There are significant gaps in unit & integration testing of the feature because this was not prioritized with the poc. This issue will track issues to fill these gaps.
This is a list of how I think we could cut our feature branch to start merging back into main. Each one of these should have unit coverage.
Misc changes:
Self review. These are some Ideas after looking at our diff here - https://github.com/opensearch-project/OpenSearch/compare/feature/segment-replication that I think might be worth doing as we merge back into main:
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