Marc Handalian a0030dfb47
Add a new Engine implementation for replicas with segment replication enabled. (#3240)
* Change fastForwardProcessedSeqNo method in LocalCheckpointTracker to persisted checkpoint.

This change inverts fastForwardProcessedSeqNo to fastForwardPersistedSeqNo for use in
Segment Replication.  This is so that a Segrep Engine can match the logic of InternalEngine
where the seqNo is incremented with each operation, but only persisted in the tracker on a flush.
With Segment Replication we bump the processed number with each operation received index/delete/noOp, and
invoke this method when we receive a new set of segments to bump the persisted seqNo.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Extract Translog specific engine methods into an abstract class.

This change extracts translog specific methods to an abstract engine class so that other engine
implementations can reuse translog logic.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Add a separate Engine implementation for replicas with segment replication enabled.

This change adds a new engine intended to be used on replicas with segment replication enabled.
This engine does not wire up an IndexWriter, but still writes all operations to a translog.
The engine uses a new ReaderManager that refreshes from an externally provided SegmentInfos.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Fix spotless checks.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Fix :server:compileInternalClusterTestJava compilation.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Fix failing test naming convention check.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* PR feedback.

- Removed isReadOnlyReplica from overloaded constructor and added feature flag checks.
- Updated log msg in NRTReplicationReaderManager
- cleaned up store ref counting in NRTReplicationEngine.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Fix spotless check.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Remove TranslogAwareEngine and build translog in NRTReplicationEngine.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Fix formatting

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Add missing translog methods to NRTEngine.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Remove persistent seqNo check from fastForwardProcessedSeqNo.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* PR feedback.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Add test specific to translog trimming.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Javadoc check.

Signed-off-by: Marc Handalian <handalm@amazon.com>

* Add failEngine calls to translog methods in NRTReplicationEngine.
Roll xlog generation on replica when a new commit point is received.

Signed-off-by: Marc Handalian <handalm@amazon.com>
2022-05-24 10:18:18 -07:00
2022-05-05 16:19:04 -04:00
2022-01-27 09:04:03 -08:00
2021-03-13 10:36:16 -06:00
2021-03-22 09:25:46 -05:00
2022-04-13 14:14:18 -04:00
2022-04-13 14:14:18 -04:00
2022-04-13 14:14:18 -04:00

Welcome!

OpenSearch is a community-driven, open source fork of Elasticsearch and Kibana following the licence change in early 2021. We're looking to sustain (and evolve!) a search and analytics suite for the multitude of businesses who are dependent on the rights granted by the original, Apache v2.0 License.

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OpenSearch includes certain Apache-licensed Elasticsearch code from Elasticsearch B.V. and other source code. Elasticsearch B.V. is not the source of that other source code. ELASTICSEARCH is a registered trademark of Elasticsearch B.V.

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🔎 Open source distributed and RESTful search engine.
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