Examples with Shard org.elasticsearch.indices.cluster.IndicesClusterStateService.Shard used on opensource projects

Example 1 with Shard

use of org.elasticsearch.indices.cluster.IndicesClusterStateService.Shard in project elasticsearch by elastic.

the class AbstractIndicesClusterStateServiceTestCase method assertClusterStateMatchesNodeState.

/**
     * Checks if cluster state matches internal state of IndicesClusterStateService instance
     *
     * @param state cluster state used for matching
     */
public void assertClusterStateMatchesNodeState(ClusterState state, IndicesClusterStateService indicesClusterStateService) {
    MockIndicesService indicesService = (MockIndicesService) indicesClusterStateService.indicesService;
    ConcurrentMap<ShardId, ShardRouting> failedShardsCache = indicesClusterStateService.failedShardsCache;
    RoutingNode localRoutingNode = state.getRoutingNodes().node(state.getNodes().getLocalNodeId());
    if (localRoutingNode != null) {
        if (enableRandomFailures == false) {
            assertThat("failed shard cache should be empty", failedShardsCache.values(), empty());
        }
        // check that all shards in local routing nodes have been allocated
        for (ShardRouting shardRouting : localRoutingNode) {
            Index index = shardRouting.index();
            IndexMetaData indexMetaData = state.metaData().getIndexSafe(index);
            MockIndexShard shard = indicesService.getShardOrNull(shardRouting.shardId());
            ShardRouting failedShard = failedShardsCache.get(shardRouting.shardId());
            if (enableRandomFailures) {
                if (shard == null && failedShard == null) {
                    fail("Shard with id " + shardRouting + " expected but missing in indicesService and failedShardsCache");
                }
                if (failedShard != null && failedShard.isSameAllocation(shardRouting) == false) {
                    fail("Shard cache has not been properly cleaned for " + failedShard);
                }
            } else {
                if (shard == null) {
                    fail("Shard with id " + shardRouting + " expected but missing in indicesService");
                }
            }
            if (shard != null) {
                AllocatedIndex<? extends Shard> indexService = indicesService.indexService(index);
                assertTrue("Index " + index + " expected but missing in indicesService", indexService != null);
                // index metadata has been updated
                assertThat(indexService.getIndexSettings().getIndexMetaData(), equalTo(indexMetaData));
                // shard has been created
                if (enableRandomFailures == false || failedShard == null) {
                    assertTrue("Shard with id " + shardRouting + " expected but missing in indexService", shard != null);
                    // shard has latest shard routing
                    assertThat(shard.routingEntry(), equalTo(shardRouting));
                }
                if (shard.routingEntry().primary() && shard.routingEntry().active()) {
                    IndexShardRoutingTable shardRoutingTable = state.routingTable().shardRoutingTable(shard.shardId());
                    Set<String> activeIds = shardRoutingTable.activeShards().stream().map(r -> r.allocationId().getId()).collect(Collectors.toSet());
                    Set<String> initializingIds = shardRoutingTable.getAllInitializingShards().stream().map(r -> r.allocationId().getId()).collect(Collectors.toSet());
                    assertThat(shard.routingEntry() + " isn't updated with active aIDs", shard.activeAllocationIds, equalTo(activeIds));
                    assertThat(shard.routingEntry() + " isn't updated with init aIDs", shard.initializingAllocationIds, equalTo(initializingIds));
                }
            }
        }
    }
    // all other shards / indices have been cleaned up
    for (AllocatedIndex<? extends Shard> indexService : indicesService) {
        assertTrue(state.metaData().getIndexSafe(indexService.index()) != null);
        boolean shardsFound = false;
        for (Shard shard : indexService) {
            shardsFound = true;
            ShardRouting persistedShardRouting = shard.routingEntry();
            ShardRouting shardRouting = localRoutingNode.getByShardId(persistedShardRouting.shardId());
            if (shardRouting == null) {
                fail("Shard with id " + persistedShardRouting + " locally exists but missing in routing table");
            }
            if (shardRouting.equals(persistedShardRouting) == false) {
                fail("Local shard " + persistedShardRouting + " has stale routing" + shardRouting);
            }
        }
        if (shardsFound == false) {
            if (enableRandomFailures) {
                // check if we have shards of that index in failedShardsCache
                // if yes, we might not have cleaned the index as failedShardsCache can be populated by another thread
                assertFalse(failedShardsCache.keySet().stream().noneMatch(shardId -> shardId.getIndex().equals(indexService.index())));
            } else {
                fail("index service for index " + indexService.index() + " has no shards");
            }
        }
    }
}