use of org.elasticsearch.cluster.routing.RecoverySource in project crate by crate.
the class IndexRecoveryIT method testReplicaRecovery.
@Test
public void testReplicaRecovery() throws Exception {
final String nodeA = internalCluster().startNode();
execute("CREATE TABLE " + INDEX_NAME + " (id BIGINT, data TEXT) " + " CLUSTERED INTO " + SHARD_COUNT + " SHARDS WITH (number_of_replicas=" + REPLICA_COUNT + ")");
ensureGreen();
final int numOfDocs = scaledRandomIntBetween(1, 200);
try (BackgroundIndexer indexer = new BackgroundIndexer(IndexParts.toIndexName(sqlExecutor.getCurrentSchema(), INDEX_NAME, null), "data", sqlExecutor.jdbcUrl(), numOfDocs, scaledRandomIntBetween(2, 5), true, null)) {
waitForDocs(numOfDocs, indexer, sqlExecutor);
}
refresh();
execute("SELECT COUNT(*) FROM " + INDEX_NAME);
assertThat(response.rows()[0][0], is((long) numOfDocs));
// We do not support ALTER on a closed table
// final boolean closedIndex = randomBoolean();
final boolean closedIndex = false;
if (closedIndex) {
execute("ALTER TABLE " + INDEX_NAME + " CLOSE");
ensureGreen();
}
// force a shard recovery from nodeA to nodeB
final String nodeB = internalCluster().startNode();
execute("ALTER TABLE " + INDEX_NAME + " SET (number_of_replicas=1)");
ensureGreen();
// we should now have two total shards, one primary and one replica
execute("SELECT * FROM sys.shards WHERE table_name = '" + INDEX_NAME + "'");
assertThat(response.rowCount(), is(2L));
var indexName = IndexParts.toIndexName(sqlExecutor.getCurrentSchema(), INDEX_NAME, null);
final RecoveryResponse response = client().execute(RecoveryAction.INSTANCE, new RecoveryRequest(indexName)).actionGet();
// we should now have two total shards, one primary and one replica
List<RecoveryState> recoveryStates = response.shardRecoveryStates().get(indexName);
assertThat(recoveryStates.size(), equalTo(2));
List<RecoveryState> nodeAResponses = findRecoveriesForTargetNode(nodeA, recoveryStates);
assertThat(nodeAResponses.size(), equalTo(1));
List<RecoveryState> nodeBResponses = findRecoveriesForTargetNode(nodeB, recoveryStates);
assertThat(nodeBResponses.size(), equalTo(1));
// validate node A recovery
final RecoveryState nodeARecoveryState = nodeAResponses.get(0);
final RecoverySource expectedRecoverySource;
if (closedIndex == false) {
expectedRecoverySource = RecoverySource.EmptyStoreRecoverySource.INSTANCE;
} else {
expectedRecoverySource = RecoverySource.ExistingStoreRecoverySource.INSTANCE;
}
assertRecoveryState(nodeARecoveryState, 0, expectedRecoverySource, true, RecoveryState.Stage.DONE, null, nodeA);
validateIndexRecoveryState(nodeARecoveryState.getIndex());
// validate node B recovery
final RecoveryState nodeBRecoveryState = nodeBResponses.get(0);
assertRecoveryState(nodeBRecoveryState, 0, RecoverySource.PeerRecoverySource.INSTANCE, false, RecoveryState.Stage.DONE, nodeA, nodeB);
validateIndexRecoveryState(nodeBRecoveryState.getIndex());
internalCluster().stopRandomNode(InternalTestCluster.nameFilter(nodeA));
if (closedIndex) {
execute("ALTER TABLE " + INDEX_NAME + " OPEN");
}
var res = execute("SELECT COUNT(*) FROM " + INDEX_NAME);
assertThat(res.rows()[0][0], is((long) numOfDocs));
}
use of org.elasticsearch.cluster.routing.RecoverySource in project elasticsearch by elastic.
the class StoreRecovery method recoverFromRepository.
/**
* Recovers an index from a given {@link Repository}. This method restores a
* previously created index snapshot into an existing initializing shard.
* @param indexShard the index shard instance to recovery the snapshot from
* @param repository the repository holding the physical files the shard should be recovered from
* @return <code>true</code> if the shard has been recovered successfully, <code>false</code> if the recovery
* has been ignored due to a concurrent modification of if the clusters state has changed due to async updates.
*/
boolean recoverFromRepository(final IndexShard indexShard, Repository repository) {
if (canRecover(indexShard)) {
RecoverySource.Type recoveryType = indexShard.recoveryState().getRecoverySource().getType();
assert recoveryType == RecoverySource.Type.SNAPSHOT : "expected snapshot recovery type: " + recoveryType;
SnapshotRecoverySource recoverySource = (SnapshotRecoverySource) indexShard.recoveryState().getRecoverySource();
return executeRecovery(indexShard, () -> {
logger.debug("restoring from {} ...", indexShard.recoveryState().getRecoverySource());
restore(indexShard, repository, recoverySource);
});
}
return false;
}
use of org.elasticsearch.cluster.routing.RecoverySource in project crate by crate.
the class RestoreInProgressAllocationDecider method canAllocate.
@Override
public Decision canAllocate(final ShardRouting shardRouting, final RoutingAllocation allocation) {
final RecoverySource recoverySource = shardRouting.recoverySource();
if (recoverySource == null || recoverySource.getType() != RecoverySource.Type.SNAPSHOT) {
return allocation.decision(Decision.YES, NAME, "ignored as shard is not being recovered from a snapshot");
}
RecoverySource.SnapshotRecoverySource source = (RecoverySource.SnapshotRecoverySource) recoverySource;
final RestoreInProgress restoresInProgress = allocation.custom(RestoreInProgress.TYPE);
if (restoresInProgress != null) {
RestoreInProgress.Entry restoreInProgress = restoresInProgress.get(source.restoreUUID());
if (restoreInProgress != null) {
RestoreInProgress.ShardRestoreStatus shardRestoreStatus = restoreInProgress.shards().get(shardRouting.shardId());
if (shardRestoreStatus != null && shardRestoreStatus.state().completed() == false) {
assert shardRestoreStatus.state() != RestoreInProgress.State.SUCCESS : "expected shard [" + shardRouting + "] to be in initializing state but got [" + shardRestoreStatus.state() + "]";
return allocation.decision(Decision.YES, NAME, "shard is currently being restored");
}
}
}
return allocation.decision(Decision.NO, NAME, "shard has failed to be restored from the snapshot [%s] - " + "manually close or delete the index [%s] in order to retry to restore the snapshot again or use the reroute API to force the " + "allocation of an empty primary shard. Details: [%s]", source.snapshot(), shardRouting.getIndexName(), shardRouting.unassignedInfo().getDetails());
}
use of org.elasticsearch.cluster.routing.RecoverySource in project crate by crate.
the class RestoreService method restoreSnapshot.
/**
* Restores snapshot specified in the restore request.
*
* @param request restore request
* @param listener restore listener
*/
public void restoreSnapshot(final RestoreRequest request, final ActionListener<RestoreCompletionResponse> listener) {
try {
// Read snapshot info and metadata from the repository
final String repositoryName = request.repositoryName;
Repository repository = repositoriesService.repository(repositoryName);
final StepListener<RepositoryData> repositoryDataListener = new StepListener<>();
repository.getRepositoryData(repositoryDataListener);
repositoryDataListener.whenComplete(repositoryData -> {
final String snapshotName = request.snapshotName;
final Optional<SnapshotId> matchingSnapshotId = repositoryData.getSnapshotIds().stream().filter(s -> snapshotName.equals(s.getName())).findFirst();
if (matchingSnapshotId.isPresent() == false) {
throw new SnapshotRestoreException(repositoryName, snapshotName, "snapshot does not exist");
}
final SnapshotId snapshotId = matchingSnapshotId.get();
repository.getSnapshotInfo(snapshotId, ActionListener.delegateFailure(listener, (delegate, snapshotInfo) -> {
final Snapshot snapshot = new Snapshot(repositoryName, snapshotId);
// Make sure that we can restore from this snapshot
validateSnapshotRestorable(repositoryName, snapshotInfo);
// Resolve the indices from the snapshot that need to be restored
final List<String> indicesInSnapshot = request.includeIndices() ? filterIndices(snapshotInfo.indices(), request.indices(), request.indicesOptions()) : List.of();
final StepListener<Metadata> globalMetadataListener = new StepListener<>();
if (request.includeCustomMetadata() || request.includeGlobalSettings() || request.allTemplates() || (request.templates() != null && request.templates().length > 0)) {
repository.getSnapshotGlobalMetadata(snapshotId, globalMetadataListener);
} else {
globalMetadataListener.onResponse(Metadata.EMPTY_METADATA);
}
globalMetadataListener.whenComplete(globalMetadata -> {
var metadataBuilder = Metadata.builder(globalMetadata);
var indexIdsInSnapshot = repositoryData.resolveIndices(indicesInSnapshot);
var snapshotIndexMetadataListener = new StepListener<Collection<IndexMetadata>>();
repository.getSnapshotIndexMetadata(snapshotId, indexIdsInSnapshot, snapshotIndexMetadataListener);
snapshotIndexMetadataListener.whenComplete(snapshotIndexMetadata -> {
for (IndexMetadata indexMetadata : snapshotIndexMetadata) {
metadataBuilder.put(indexMetadata, false);
}
final Metadata metadata = metadataBuilder.build();
// Apply renaming on index names, returning a map of names where
// the key is the renamed index and the value is the original name
final Map<String, String> indices = renamedIndices(request, indicesInSnapshot);
// Now we can start the actual restore process by adding shards to be recovered in the cluster state
// and updating cluster metadata (global and index) as needed
clusterService.submitStateUpdateTask("restore_snapshot[" + snapshotName + ']', new ClusterStateUpdateTask() {
final String restoreUUID = UUIDs.randomBase64UUID();
RestoreInfo restoreInfo = null;
@Override
public ClusterState execute(ClusterState currentState) {
RestoreInProgress restoreInProgress = currentState.custom(RestoreInProgress.TYPE);
// Check if the snapshot to restore is currently being deleted
SnapshotDeletionsInProgress deletionsInProgress = currentState.custom(SnapshotDeletionsInProgress.TYPE);
if (deletionsInProgress != null && deletionsInProgress.getEntries().stream().anyMatch(entry -> entry.getSnapshot().equals(snapshot))) {
throw new ConcurrentSnapshotExecutionException(snapshot, "cannot restore a snapshot while a snapshot deletion is in-progress [" + deletionsInProgress.getEntries().get(0).getSnapshot() + "]");
}
// Updating cluster state
ClusterState.Builder builder = ClusterState.builder(currentState);
Metadata.Builder mdBuilder = Metadata.builder(currentState.metadata());
ClusterBlocks.Builder blocks = ClusterBlocks.builder().blocks(currentState.blocks());
RoutingTable.Builder rtBuilder = RoutingTable.builder(currentState.routingTable());
ImmutableOpenMap<ShardId, RestoreInProgress.ShardRestoreStatus> shards;
Set<String> aliases = new HashSet<>();
if (indices.isEmpty() == false) {
// We have some indices to restore
ImmutableOpenMap.Builder<ShardId, RestoreInProgress.ShardRestoreStatus> shardsBuilder = ImmutableOpenMap.builder();
final Version minIndexCompatibilityVersion = currentState.getNodes().getMaxNodeVersion().minimumIndexCompatibilityVersion();
for (Map.Entry<String, String> indexEntry : indices.entrySet()) {
String index = indexEntry.getValue();
boolean partial = checkPartial(index);
SnapshotRecoverySource recoverySource = new SnapshotRecoverySource(restoreUUID, snapshot, snapshotInfo.version(), index);
String renamedIndexName = indexEntry.getKey();
IndexMetadata snapshotIndexMetadata = metadata.index(index);
snapshotIndexMetadata = updateIndexSettings(snapshotIndexMetadata, request.indexSettings(), request.ignoreIndexSettings());
try {
snapshotIndexMetadata = metadataIndexUpgradeService.upgradeIndexMetadata(snapshotIndexMetadata, minIndexCompatibilityVersion);
} catch (Exception ex) {
throw new SnapshotRestoreException(snapshot, "cannot restore index [" + index + "] because it cannot be upgraded", ex);
}
// Check that the index is closed or doesn't exist
IndexMetadata currentIndexMetadata = currentState.metadata().index(renamedIndexName);
IntSet ignoreShards = new IntHashSet();
final Index renamedIndex;
if (currentIndexMetadata == null) {
// Index doesn't exist - create it and start recovery
// Make sure that the index we are about to create has a validate name
MetadataCreateIndexService.validateIndexName(renamedIndexName, currentState);
createIndexService.validateIndexSettings(renamedIndexName, snapshotIndexMetadata.getSettings(), currentState, false);
IndexMetadata.Builder indexMdBuilder = IndexMetadata.builder(snapshotIndexMetadata).state(IndexMetadata.State.OPEN).index(renamedIndexName);
indexMdBuilder.settings(Settings.builder().put(snapshotIndexMetadata.getSettings()).put(IndexMetadata.SETTING_INDEX_UUID, UUIDs.randomBase64UUID()));
shardLimitValidator.validateShardLimit(snapshotIndexMetadata.getSettings(), currentState);
if (!request.includeAliases() && !snapshotIndexMetadata.getAliases().isEmpty()) {
// Remove all aliases - they shouldn't be restored
indexMdBuilder.removeAllAliases();
} else {
for (ObjectCursor<String> alias : snapshotIndexMetadata.getAliases().keys()) {
aliases.add(alias.value);
}
}
IndexMetadata updatedIndexMetadata = indexMdBuilder.build();
if (partial) {
populateIgnoredShards(index, ignoreShards);
}
rtBuilder.addAsNewRestore(updatedIndexMetadata, recoverySource, ignoreShards);
blocks.addBlocks(updatedIndexMetadata);
mdBuilder.put(updatedIndexMetadata, true);
renamedIndex = updatedIndexMetadata.getIndex();
} else {
validateExistingIndex(currentIndexMetadata, snapshotIndexMetadata, renamedIndexName, partial);
// Index exists and it's closed - open it in metadata and start recovery
IndexMetadata.Builder indexMdBuilder = IndexMetadata.builder(snapshotIndexMetadata).state(IndexMetadata.State.OPEN);
indexMdBuilder.version(Math.max(snapshotIndexMetadata.getVersion(), 1 + currentIndexMetadata.getVersion()));
indexMdBuilder.mappingVersion(Math.max(snapshotIndexMetadata.getMappingVersion(), 1 + currentIndexMetadata.getMappingVersion()));
indexMdBuilder.settingsVersion(Math.max(snapshotIndexMetadata.getSettingsVersion(), 1 + currentIndexMetadata.getSettingsVersion()));
for (int shard = 0; shard < snapshotIndexMetadata.getNumberOfShards(); shard++) {
indexMdBuilder.primaryTerm(shard, Math.max(snapshotIndexMetadata.primaryTerm(shard), currentIndexMetadata.primaryTerm(shard)));
}
if (!request.includeAliases()) {
// Remove all snapshot aliases
if (!snapshotIndexMetadata.getAliases().isEmpty()) {
indexMdBuilder.removeAllAliases();
}
// Add existing aliases
for (ObjectCursor<AliasMetadata> alias : currentIndexMetadata.getAliases().values()) {
indexMdBuilder.putAlias(alias.value);
}
} else {
for (ObjectCursor<String> alias : snapshotIndexMetadata.getAliases().keys()) {
aliases.add(alias.value);
}
}
indexMdBuilder.settings(Settings.builder().put(snapshotIndexMetadata.getSettings()).put(IndexMetadata.SETTING_INDEX_UUID, currentIndexMetadata.getIndexUUID()));
IndexMetadata updatedIndexMetadata = indexMdBuilder.index(renamedIndexName).build();
rtBuilder.addAsRestore(updatedIndexMetadata, recoverySource);
blocks.updateBlocks(updatedIndexMetadata);
mdBuilder.put(updatedIndexMetadata, true);
renamedIndex = updatedIndexMetadata.getIndex();
}
for (int shard = 0; shard < snapshotIndexMetadata.getNumberOfShards(); shard++) {
if (!ignoreShards.contains(shard)) {
shardsBuilder.put(new ShardId(renamedIndex, shard), new RestoreInProgress.ShardRestoreStatus(clusterService.state().nodes().getLocalNodeId()));
} else {
shardsBuilder.put(new ShardId(renamedIndex, shard), new RestoreInProgress.ShardRestoreStatus(clusterService.state().nodes().getLocalNodeId(), RestoreInProgress.State.FAILURE));
}
}
}
shards = shardsBuilder.build();
RestoreInProgress.Entry restoreEntry = new RestoreInProgress.Entry(restoreUUID, snapshot, overallState(RestoreInProgress.State.INIT, shards), List.copyOf(indices.keySet()), shards);
RestoreInProgress.Builder restoreInProgressBuilder;
if (restoreInProgress != null) {
restoreInProgressBuilder = new RestoreInProgress.Builder(restoreInProgress);
} else {
restoreInProgressBuilder = new RestoreInProgress.Builder();
}
builder.putCustom(RestoreInProgress.TYPE, restoreInProgressBuilder.add(restoreEntry).build());
} else {
shards = ImmutableOpenMap.of();
}
validateExistingTemplates();
checkAliasNameConflicts(indices, aliases);
// Restore templates (but do NOT overwrite existing templates)
restoreTemplates(mdBuilder, currentState);
// Restore global state if needed
if (request.includeGlobalSettings() && metadata.persistentSettings() != null) {
Settings settings = metadata.persistentSettings();
// CrateDB patch to only restore defined settings
if (request.globalSettings().length > 0) {
var filteredSettingBuilder = Settings.builder();
for (String prefix : request.globalSettings()) {
filteredSettingBuilder.put(settings.filter(s -> s.startsWith(prefix)));
}
settings = filteredSettingBuilder.build();
}
clusterSettings.validateUpdate(settings);
mdBuilder.persistentSettings(settings);
}
if (request.includeCustomMetadata() && metadata.customs() != null) {
// CrateDB patch to only restore defined custom metadata types
List<String> customMetadataTypes = Arrays.asList(request.customMetadataTypes());
boolean includeAll = customMetadataTypes.size() == 0;
for (ObjectObjectCursor<String, Metadata.Custom> cursor : metadata.customs()) {
if (!RepositoriesMetadata.TYPE.equals(cursor.key)) {
if (includeAll || customMetadataTypes.contains(cursor.key)) {
mdBuilder.putCustom(cursor.key, cursor.value);
}
}
}
}
if (completed(shards)) {
// We don't have any indices to restore - we are done
restoreInfo = new RestoreInfo(snapshotId.getName(), Collections.unmodifiableList(new ArrayList<>(indices.keySet())), shards.size(), shards.size() - failedShards(shards));
}
RoutingTable rt = rtBuilder.build();
ClusterState updatedState = builder.metadata(mdBuilder).blocks(blocks).routingTable(rt).build();
return allocationService.reroute(updatedState, "restored snapshot [" + snapshot + "]");
}
private void checkAliasNameConflicts(Map<String, String> renamedIndices, Set<String> aliases) {
for (Map.Entry<String, String> renamedIndex : renamedIndices.entrySet()) {
if (aliases.contains(renamedIndex.getKey())) {
throw new SnapshotRestoreException(snapshot, "cannot rename index [" + renamedIndex.getValue() + "] into [" + renamedIndex.getKey() + "] because of conflict with an alias with the same name");
}
}
}
private void populateIgnoredShards(String index, IntSet ignoreShards) {
for (SnapshotShardFailure failure : snapshotInfo.shardFailures()) {
if (index.equals(failure.index())) {
ignoreShards.add(failure.shardId());
}
}
}
private boolean checkPartial(String index) {
// Make sure that index was fully snapshotted
if (failed(snapshotInfo, index)) {
if (request.partial()) {
return true;
} else {
throw new SnapshotRestoreException(snapshot, "index [" + index + "] wasn't fully snapshotted - cannot " + "restore");
}
} else {
return false;
}
}
private void validateExistingIndex(IndexMetadata currentIndexMetadata, IndexMetadata snapshotIndexMetadata, String renamedIndex, boolean partial) {
// Index exist - checking that it's closed
if (currentIndexMetadata.getState() != IndexMetadata.State.CLOSE) {
// TODO: Enable restore for open indices
throw new SnapshotRestoreException(snapshot, "cannot restore index [" + renamedIndex + "] because an open index " + "with same name already exists in the cluster. Either close or delete the existing index or restore the " + "index under a different name by providing a rename pattern and replacement name");
}
// Index exist - checking if it's partial restore
if (partial) {
throw new SnapshotRestoreException(snapshot, "cannot restore partial index [" + renamedIndex + "] because such index already exists");
}
// Make sure that the number of shards is the same. That's the only thing that we cannot change
if (currentIndexMetadata.getNumberOfShards() != snapshotIndexMetadata.getNumberOfShards()) {
throw new SnapshotRestoreException(snapshot, "cannot restore index [" + renamedIndex + "] with [" + currentIndexMetadata.getNumberOfShards() + "] shards from a snapshot of index [" + snapshotIndexMetadata.getIndex().getName() + "] with [" + snapshotIndexMetadata.getNumberOfShards() + "] shards");
}
}
/**
* Optionally updates index settings in indexMetadata by removing settings listed in ignoreSettings and
* merging them with settings in changeSettings.
*/
private IndexMetadata updateIndexSettings(IndexMetadata indexMetadata, Settings changeSettings, String[] ignoreSettings) {
if (changeSettings.names().isEmpty() && ignoreSettings.length == 0) {
return indexMetadata;
}
Settings normalizedChangeSettings = Settings.builder().put(changeSettings).normalizePrefix(IndexMetadata.INDEX_SETTING_PREFIX).build();
IndexMetadata.Builder builder = IndexMetadata.builder(indexMetadata);
Settings settings = indexMetadata.getSettings();
Set<String> keyFilters = new HashSet<>();
List<String> simpleMatchPatterns = new ArrayList<>();
for (String ignoredSetting : ignoreSettings) {
if (!Regex.isSimpleMatchPattern(ignoredSetting)) {
if (UNREMOVABLE_SETTINGS.contains(ignoredSetting)) {
throw new SnapshotRestoreException(snapshot, "cannot remove setting [" + ignoredSetting + "] on restore");
} else {
keyFilters.add(ignoredSetting);
}
} else {
simpleMatchPatterns.add(ignoredSetting);
}
}
Predicate<String> settingsFilter = k -> {
if (UNREMOVABLE_SETTINGS.contains(k) == false) {
for (String filterKey : keyFilters) {
if (k.equals(filterKey)) {
return false;
}
}
for (String pattern : simpleMatchPatterns) {
if (Regex.simpleMatch(pattern, k)) {
return false;
}
}
}
return true;
};
Settings.Builder settingsBuilder = Settings.builder().put(settings.filter(settingsFilter)).put(normalizedChangeSettings.filter(k -> {
if (UNMODIFIABLE_SETTINGS.contains(k)) {
throw new SnapshotRestoreException(snapshot, "cannot modify setting [" + k + "] on restore");
} else {
return true;
}
}));
settingsBuilder.remove(IndexMetadata.VERIFIED_BEFORE_CLOSE_SETTING.getKey());
return builder.settings(settingsBuilder).build();
}
private void restoreTemplates(Metadata.Builder mdBuilder, ClusterState currentState) {
List<String> toRestore = Arrays.asList(request.templates());
if (metadata.templates() != null) {
for (ObjectCursor<IndexTemplateMetadata> cursor : metadata.templates().values()) {
if (currentState.metadata().templates().get(cursor.value.name()) == null && (request.allTemplates() || toRestore.contains(cursor.value.name()))) {
mdBuilder.put(cursor.value);
}
}
}
}
private void validateExistingTemplates() {
if (request.indicesOptions().ignoreUnavailable() || request.allTemplates()) {
return;
}
for (String template : request.templates()) {
if (!metadata.templates().containsKey(template)) {
throw new ResourceNotFoundException("[{}] template not found", template);
}
}
}
@Override
public void onFailure(String source, Exception e) {
LOGGER.warn(() -> new ParameterizedMessage("[{}] failed to restore snapshot", snapshotId), e);
listener.onFailure(e);
}
@Override
public TimeValue timeout() {
return request.masterNodeTimeout();
}
@Override
public void clusterStateProcessed(String source, ClusterState oldState, ClusterState newState) {
listener.onResponse(new RestoreCompletionResponse(restoreUUID, snapshot, restoreInfo));
}
});
}, listener::onFailure);
}, listener::onFailure);
}));
}, listener::onFailure);
} catch (Exception e) {
LOGGER.warn(() -> new ParameterizedMessage("[{}] failed to restore snapshot", request.repositoryName + ":" + request.snapshotName), e);
listener.onFailure(e);
}
}
use of org.elasticsearch.cluster.routing.RecoverySource in project crate by crate.
the class IndexShardTestCase method newShard.
/**
* Creates a new initializing shard. The shard will have its own unique data path.
*
* @param primary indicates whether to a primary shard (ready to recover from an empty store) or a replica (ready to recover from
* another shard)
* @param settings the settings to use for this shard
* @param engineFactory the engine factory to use for this shard
*/
protected IndexShard newShard(boolean primary, Settings settings, EngineFactory engineFactory) throws IOException {
final RecoverySource recoverySource = primary ? RecoverySource.EmptyStoreRecoverySource.INSTANCE : RecoverySource.PeerRecoverySource.INSTANCE;
final ShardRouting shardRouting = TestShardRouting.newShardRouting(new ShardId("index", "_na_", 0), randomAlphaOfLength(10), primary, ShardRoutingState.INITIALIZING, recoverySource);
return newShard(shardRouting, settings, engineFactory);
}
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