8f873620ee
Today we rely on background syncs to relay the global checkpoint under the mandate of the primary to its replicas. This means that the global checkpoint on a replica can lag far behind the primary. The commit moves to inlining global checkpoints with replication requests. When a replication operation is performed, the primary will send the latest global checkpoint inline with the replica requests. This keeps the replicas closer in-sync with the primary. However, consider a replication request that is not followed by another replication request for an indefinite period of time. When the replicas respond to the primary with their local checkpoint, the primary will advance its global checkpoint. During this indefinite period of time, the replicas will not be notified of the advanced global checkpoint. This necessitates a need for another sync. To achieve this, we perform a global checkpoint sync when a shard falls idle. Relates #24513 |
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| src/test/java/org/elasticsearch/backwards | ||
| build.gradle | ||