Add batch async shard fetch transport action for replica shards #8354
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description
This pull request is part of the improvement #5098
This PR for adding the transport action for the async fetching of the shard information for batch of replica shards from the nodes in a single request per node. Code is inspired by the existing transport action TransportNodesListShardStoreMetadata.java which fetches just one shard information from the node per request.
Tested the changes manually by changing the replica shard allocator in the gateway allocator in my custom branch sudarshan-baliga@0919259 and verified that the batch of shard information was fetched while adding and removing the node from the cluster.
Data node log which was dropped and readded
Master node log when the data node was readded
Check List
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.