Module org.elasticsearch.server
Package org.elasticsearch.cluster

Class ClusterInfoSimulator

java.lang.Object
org.elasticsearch.cluster.ClusterInfoSimulator
public class ClusterInfoSimulator extends Object

  • Constructor Details

  • Method Details

    • simulateShardStarted

      public void simulateShardStarted(ShardRouting shard)
      This method updates disk usage to reflect shard relocations and new replica initialization. In case of a single data path both mostAvailableSpaceUsage and leastAvailableSpaceUsage are update to reflect the change. In case of multiple data path only mostAvailableSpaceUsage as it is used in calculation in DiskThresholdDecider for allocating new shards. This assumes the worst case (all shards are placed on a single most used disk) and prevents node overflow. Balance is later recalculated with a refreshed cluster info containing actual shards placement.

    • simulateAlreadyStartedShard

      public void simulateAlreadyStartedShard(ShardRouting startedShard, @Nullable String sourceNodeId)
      This method simulates starting an already started shard with an optional sourceNodeId in case of a relocation.
      Parameters:
      startedShard - The shard to simulate. Must be started already.
      sourceNodeId - The source node ID if the shard started as a result of relocation. null otherwise.

    • getClusterInfo

      public ClusterInfo getClusterInfo()