Ivan Daschinskiy created IGNITE-13508: -----------------------------------------
Summary: Test scenario of two-phased rebalance (PDS reduce) Key: IGNITE-13508 URL: https://issues.apache.org/jira/browse/IGNITE-13508 Project: Ignite Issue Type: Test Reporter: Ivan Daschinskiy Let us assume a cluster of 16 affinity nodes. Lets divide cluster in 4 equal cells: Each node in cell has the same node attribute {{CELL=CELL_<idx>}} Caches, that will be started on nodes, should have affinity function with this backup filter: {code:java} public class CellularAffinityBackupFilter implements IgniteBiPredicate<ClusterNode, List<ClusterNode>> { private static final long serialVersionUID = 1L; private final String attrName; public CellularAffinityBackupFilter(String attrName) { this.attrName = attrName; } @Override public boolean apply(ClusterNode candidate, List<ClusterNode> previouslySelected) { for (ClusterNode node : previouslySelected) return Objects.equals(candidate.attribute(attrName), node.attribute(attrName)); return true; } } {code} Steps: * Preparations. 1. Start all 4 cells. 2. Load data to cache with the mentioned above affinity function and fix PDS size on all nodes. 3. Delete 80% of data and fix PDS size on all nodes. * Phase 1 1. Stop two nodes in each cell, total a half of all nodes and clean PDS. 2. Start cleaned node with preservance of consistent id and cell attributes. 3. Wait for rebalance finished. * Phase 2 Run steps 1-3 of Phase 2 on the other half of the cluster. * Verifications 1. Check that PDS size reduced (compare to step 3) 2. Check data consistency (idle_verify --dump) -- This message was sent by Atlassian Jira (v8.3.4#803005)