/** Cleans dangling indices if they are already allocated on the provided meta data. */
void cleanupAllocatedDangledIndices(MetaData metaData) {
for (String danglingIndex : danglingIndices.keySet()) {
if (metaData.hasIndex(danglingIndex)) {
logger.debug(
"[{}] no longer dangling (created), removing from dangling list", danglingIndex);
danglingIndices.remove(danglingIndex);
}
}
}
public void validate(RoutingTableValidation validation, MetaData metaData) {
if (!metaData.hasIndex(index())) {
validation.addIndexFailure(index(), "Exists in routing does not exists in metadata");
return;
}
IndexMetaData indexMetaData = metaData.index(index());
for (String failure : validate(indexMetaData)) {
validation.addIndexFailure(index, failure);
}
}
@Override
protected void resolveRequest(
ClusterState state,
InternalRequest request,
ActionListener<IndexResponse> indexResponseActionListener) {
MetaData metaData = clusterService.state().metaData();
MappingMetaData mappingMd = null;
if (metaData.hasIndex(request.concreteIndex())) {
mappingMd =
metaData.index(request.concreteIndex()).mappingOrDefault(request.request().type());
}
request.request().process(metaData, mappingMd, allowIdGeneration, request.concreteIndex());
}
/**
* Finds new dangling indices by iterating over the indices and trying to find indices that have
* state on disk, but are not part of the provided meta data, or not detected as dangled already.
*/
Map<String, IndexMetaData> findNewDanglingIndices(MetaData metaData) {
final Set<String> indices;
try {
indices = nodeEnv.findAllIndices();
} catch (Throwable e) {
logger.warn("failed to list dangling indices", e);
return ImmutableMap.of();
}
Map<String, IndexMetaData> newIndices = Maps.newHashMap();
for (String indexName : indices) {
if (metaData.hasIndex(indexName) == false
&& danglingIndices.containsKey(indexName) == false) {
try {
IndexMetaData indexMetaData = metaStateService.loadIndexState(indexName);
if (indexMetaData != null) {
logger.info(
"[{}] dangling index, exists on local file system, but not in cluster metadata, auto import to cluster state",
indexName);
if (!indexMetaData.index().equals(indexName)) {
logger.info(
"dangled index directory name is [{}], state name is [{}], renaming to directory name",
indexName,
indexMetaData.index());
indexMetaData = IndexMetaData.builder(indexMetaData).index(indexName).build();
}
newIndices.put(indexName, indexMetaData);
} else {
logger.debug("[{}] dangling index directory detected, but no state found", indexName);
}
} catch (Throwable t) {
logger.warn("[{}] failed to load index state for detected dangled index", t, indexName);
}
}
}
return newIndices;
}
@Override
public void clusterChanged(ClusterChangedEvent event) {
if (event.state().blocks().disableStatePersistence()) {
// reset the current metadata, we need to start fresh...
this.currentMetaData = null;
return;
}
MetaData newMetaData = event.state().metaData();
// delete indices that were there before, but are deleted now
// we need to do it so they won't be detected as dangling
if (currentMetaData != null) {
// only delete indices when we already received a state (currentMetaData != null)
for (IndexMetaData current : currentMetaData) {
if (!newMetaData.hasIndex(current.index())) {
logger.debug(
"[{}] deleting index that is no longer part of the metadata (indices: [{}])",
current.index(),
newMetaData.indices().keys());
if (nodeEnv.hasNodeFile()) {
FileSystemUtils.deleteRecursively(nodeEnv.indexLocations(new Index(current.index())));
}
try {
nodeIndexDeletedAction.nodeIndexStoreDeleted(
event.state(), current.index(), event.state().nodes().localNodeId());
} catch (Exception e) {
logger.debug(
"[{}] failed to notify master on local index store deletion", e, current.index());
}
}
}
}
currentMetaData = newMetaData;
}
@Override
protected void doExecute(
final IndexRequest indexRequest, final ActionListener<IndexResponse> listener) {
final ClusterState clusterState = clusterService.state();
clusterState.blocks().globalBlockedRaiseException(ClusterBlockLevel.WRITE);
try {
MetaData metaData = clusterState.metaData();
indexRequest.index(
clusterState
.metaData()
.concreteSingleIndex(indexRequest.index(), indexRequest.indicesOptions()));
MappingMetaData mappingMd = null;
if (metaData.hasIndex(indexRequest.index())) {
mappingMd = metaData.index(indexRequest.index()).mappingOrDefault(indexRequest.type());
}
indexRequest.process(metaData, indexRequest.index(), mappingMd, allowIdGeneration);
} catch (Throwable e) {
logger.error(e.getMessage(), e);
listener.onFailure(e);
return;
}
final AtomicInteger counter = new AtomicInteger(1);
final IndexResponse response = new IndexResponse();
transportLeaderShardIndexAction.execute(
indexRequest,
new ActionListener<IndexResponse>() {
@Override
public void onResponse(IndexResponse indexResponse) {
int quorumShards = indexResponse.getQuorumShards();
response
.setIndex(indexRequest.index())
.setType(indexRequest.type())
.setId(indexRequest.id())
.setVersion(indexResponse.getVersion())
.setQuorumShards(quorumShards);
ShardId shardId =
clusterService
.operationRouting()
.indexShards(
clusterService.state(),
indexRequest.index(),
indexRequest.type(),
indexRequest.id(),
indexRequest.routing())
.shardId();
if (quorumShards < 0) {
response.setFailure(new IndexActionFailure(shardId, "quorum not reached"));
} else if (quorumShards > 0) {
counter.incrementAndGet();
IndexReplicaShardRequest indexReplicaShardRequest =
new IndexReplicaShardRequest(shardId, indexRequest);
transportReplicaShardIndexAction.execute(
indexReplicaShardRequest,
new ActionListener<
TransportReplicaShardOperationAction.ReplicaOperationResponse>() {
@Override
public void onResponse(
TransportReplicaShardOperationAction.ReplicaOperationResponse
replicaOperationResponse) {
response.addReplicaResponses(replicaOperationResponse.responses());
if (counter.decrementAndGet() == 0) {
listener.onResponse(response);
}
}
@Override
public void onFailure(Throwable e) {
logger.error(e.getMessage(), e);
listener.onFailure(e);
}
});
}
if (counter.decrementAndGet() == 0) {
listener.onResponse(response);
}
}
@Override
public void onFailure(Throwable e) {
logger.error(e.getMessage(), e);
listener.onFailure(e);
}
});
}
private void executeBulk(
final BulkRequest bulkRequest,
final long startTime,
final ActionListener<BulkResponse> listener,
final AtomicArray<BulkItemResponse> responses) {
final ClusterState clusterState = clusterService.state();
// TODO use timeout to wait here if its blocked...
clusterState.blocks().globalBlockedRaiseException(ClusterBlockLevel.WRITE);
final ConcreteIndices concreteIndices =
new ConcreteIndices(clusterState, indexNameExpressionResolver);
MetaData metaData = clusterState.metaData();
for (int i = 0; i < bulkRequest.requests.size(); i++) {
ActionRequest request = bulkRequest.requests.get(i);
if (request instanceof DocumentRequest) {
DocumentRequest req = (DocumentRequest) request;
if (addFailureIfIndexIsUnavailable(
req, bulkRequest, responses, i, concreteIndices, metaData)) {
continue;
}
String concreteIndex = concreteIndices.resolveIfAbsent(req);
if (request instanceof IndexRequest) {
IndexRequest indexRequest = (IndexRequest) request;
MappingMetaData mappingMd = null;
if (metaData.hasIndex(concreteIndex)) {
mappingMd = metaData.index(concreteIndex).mappingOrDefault(indexRequest.type());
}
try {
indexRequest.process(metaData, mappingMd, allowIdGeneration, concreteIndex);
} catch (ElasticsearchParseException | RoutingMissingException e) {
BulkItemResponse.Failure failure =
new BulkItemResponse.Failure(
concreteIndex, indexRequest.type(), indexRequest.id(), e);
BulkItemResponse bulkItemResponse = new BulkItemResponse(i, "index", failure);
responses.set(i, bulkItemResponse);
// make sure the request gets never processed again
bulkRequest.requests.set(i, null);
}
} else {
concreteIndices.resolveIfAbsent(req);
req.routing(
clusterState
.metaData()
.resolveIndexRouting(req.parent(), req.routing(), req.index()));
}
}
}
// first, go over all the requests and create a ShardId -> Operations mapping
Map<ShardId, List<BulkItemRequest>> requestsByShard = new HashMap<>();
for (int i = 0; i < bulkRequest.requests.size(); i++) {
ActionRequest request = bulkRequest.requests.get(i);
if (request instanceof IndexRequest) {
IndexRequest indexRequest = (IndexRequest) request;
String concreteIndex = concreteIndices.getConcreteIndex(indexRequest.index());
ShardId shardId =
clusterService
.operationRouting()
.indexShards(
clusterState,
concreteIndex,
indexRequest.type(),
indexRequest.id(),
indexRequest.routing())
.shardId();
List<BulkItemRequest> list = requestsByShard.get(shardId);
if (list == null) {
list = new ArrayList<>();
requestsByShard.put(shardId, list);
}
list.add(new BulkItemRequest(i, request));
} else if (request instanceof DeleteRequest) {
DeleteRequest deleteRequest = (DeleteRequest) request;
String concreteIndex = concreteIndices.getConcreteIndex(deleteRequest.index());
MappingMetaData mappingMd =
clusterState.metaData().index(concreteIndex).mappingOrDefault(deleteRequest.type());
if (mappingMd != null
&& mappingMd.routing().required()
&& deleteRequest.routing() == null) {
// if routing is required, and no routing on the delete request, we need to broadcast
// it....
GroupShardsIterator groupShards =
clusterService.operationRouting().broadcastDeleteShards(clusterState, concreteIndex);
for (ShardIterator shardIt : groupShards) {
List<BulkItemRequest> list = requestsByShard.get(shardIt.shardId());
if (list == null) {
list = new ArrayList<>();
requestsByShard.put(shardIt.shardId(), list);
}
list.add(new BulkItemRequest(i, deleteRequest));
}
} else {
ShardId shardId =
clusterService
.operationRouting()
.indexShards(
clusterState,
concreteIndex,
deleteRequest.type(),
deleteRequest.id(),
deleteRequest.routing())
.shardId();
List<BulkItemRequest> list = requestsByShard.get(shardId);
if (list == null) {
list = new ArrayList<>();
requestsByShard.put(shardId, list);
}
list.add(new BulkItemRequest(i, request));
}
} else if (request instanceof UpdateRequest) {
UpdateRequest updateRequest = (UpdateRequest) request;
String concreteIndex = concreteIndices.getConcreteIndex(updateRequest.index());
MappingMetaData mappingMd =
clusterState.metaData().index(concreteIndex).mappingOrDefault(updateRequest.type());
if (mappingMd != null
&& mappingMd.routing().required()
&& updateRequest.routing() == null) {
BulkItemResponse.Failure failure =
new BulkItemResponse.Failure(
updateRequest.index(),
updateRequest.type(),
updateRequest.id(),
new IllegalArgumentException("routing is required for this item"));
responses.set(i, new BulkItemResponse(i, updateRequest.type(), failure));
continue;
}
ShardId shardId =
clusterService
.operationRouting()
.indexShards(
clusterState,
concreteIndex,
updateRequest.type(),
updateRequest.id(),
updateRequest.routing())
.shardId();
List<BulkItemRequest> list = requestsByShard.get(shardId);
if (list == null) {
list = new ArrayList<>();
requestsByShard.put(shardId, list);
}
list.add(new BulkItemRequest(i, request));
}
}
if (requestsByShard.isEmpty()) {
listener.onResponse(
new BulkResponse(
responses.toArray(new BulkItemResponse[responses.length()]),
buildTookInMillis(startTime)));
return;
}
final AtomicInteger counter = new AtomicInteger(requestsByShard.size());
for (Map.Entry<ShardId, List<BulkItemRequest>> entry : requestsByShard.entrySet()) {
final ShardId shardId = entry.getKey();
final List<BulkItemRequest> requests = entry.getValue();
BulkShardRequest bulkShardRequest =
new BulkShardRequest(
bulkRequest,
shardId,
bulkRequest.refresh(),
requests.toArray(new BulkItemRequest[requests.size()]));
bulkShardRequest.consistencyLevel(bulkRequest.consistencyLevel());
bulkShardRequest.timeout(bulkRequest.timeout());
shardBulkAction.execute(
bulkShardRequest,
new ActionListener<BulkShardResponse>() {
@Override
public void onResponse(BulkShardResponse bulkShardResponse) {
for (BulkItemResponse bulkItemResponse : bulkShardResponse.getResponses()) {
// we may have no response if item failed
if (bulkItemResponse.getResponse() != null) {
bulkItemResponse.getResponse().setShardInfo(bulkShardResponse.getShardInfo());
}
responses.set(bulkItemResponse.getItemId(), bulkItemResponse);
}
if (counter.decrementAndGet() == 0) {
finishHim();
}
}
@Override
public void onFailure(Throwable e) {
// create failures for all relevant requests
for (BulkItemRequest request : requests) {
if (request.request() instanceof IndexRequest) {
IndexRequest indexRequest = (IndexRequest) request.request();
responses.set(
request.id(),
new BulkItemResponse(
request.id(),
indexRequest.opType().toString().toLowerCase(Locale.ENGLISH),
new BulkItemResponse.Failure(
concreteIndices.getConcreteIndex(indexRequest.index()),
indexRequest.type(),
indexRequest.id(),
e)));
} else if (request.request() instanceof DeleteRequest) {
DeleteRequest deleteRequest = (DeleteRequest) request.request();
responses.set(
request.id(),
new BulkItemResponse(
request.id(),
"delete",
new BulkItemResponse.Failure(
concreteIndices.getConcreteIndex(deleteRequest.index()),
deleteRequest.type(),
deleteRequest.id(),
e)));
} else if (request.request() instanceof UpdateRequest) {
UpdateRequest updateRequest = (UpdateRequest) request.request();
responses.set(
request.id(),
new BulkItemResponse(
request.id(),
"update",
new BulkItemResponse.Failure(
concreteIndices.getConcreteIndex(updateRequest.index()),
updateRequest.type(),
updateRequest.id(),
e)));
}
}
if (counter.decrementAndGet() == 0) {
finishHim();
}
}
private void finishHim() {
listener.onResponse(
new BulkResponse(
responses.toArray(new BulkItemResponse[responses.length()]),
buildTookInMillis(startTime)));
}
});
}
}
@Override
public void clusterChanged(ClusterChangedEvent event) {
if (event.state().blocks().disableStatePersistence()) {
// reset the current metadata, we need to start fresh...
this.currentMetaData = null;
return;
}
MetaData newMetaData = event.state().metaData();
// we don't check if metaData changed, since we might be called several times and we need to
// check dangling...
boolean success = true;
// only applied to master node, writing the global and index level states
if (event.state().nodes().localNode().masterNode()) {
// check if the global state changed?
if (currentMetaData == null || !MetaData.isGlobalStateEquals(currentMetaData, newMetaData)) {
try {
writeGlobalState("changed", newMetaData, currentMetaData);
} catch (Exception e) {
success = false;
}
}
// check and write changes in indices
for (IndexMetaData indexMetaData : newMetaData) {
String writeReason = null;
IndexMetaData currentIndexMetaData;
if (currentMetaData == null) {
// a new event..., check from the state stored
currentIndexMetaData = loadIndex(indexMetaData.index());
} else {
currentIndexMetaData = currentMetaData.index(indexMetaData.index());
}
if (currentIndexMetaData == null) {
writeReason = "freshly created";
} else if (currentIndexMetaData.version() != indexMetaData.version()) {
writeReason =
"version changed from ["
+ currentIndexMetaData.version()
+ "] to ["
+ indexMetaData.version()
+ "]";
}
// we update the writeReason only if we really need to write it
if (writeReason == null) {
continue;
}
try {
writeIndex(writeReason, indexMetaData, currentIndexMetaData);
} catch (Exception e) {
success = false;
}
}
}
// delete indices that were there before, but are deleted now
// we need to do it so they won't be detected as dangling
if (nodeEnv.hasNodeFile()) {
if (currentMetaData != null) {
// only delete indices when we already received a state (currentMetaData != null)
// and we had a go at processing dangling indices at least once
// this will also delete the _state of the index itself
for (IndexMetaData current : currentMetaData) {
if (danglingIndices.containsKey(current.index())) {
continue;
}
if (!newMetaData.hasIndex(current.index())) {
logger.debug(
"[{}] deleting index that is no longer part of the metadata (indices: [{}])",
current.index(),
newMetaData.indices().keySet());
FileSystemUtils.deleteRecursively(nodeEnv.indexLocations(new Index(current.index())));
}
}
}
}
// handle dangling indices, we handle those for all nodes that have a node file (data or master)
if (nodeEnv.hasNodeFile()) {
if (danglingTimeout.millis() >= 0) {
synchronized (danglingMutex) {
for (String danglingIndex : danglingIndices.keySet()) {
if (newMetaData.hasIndex(danglingIndex)) {
logger.debug("[{}] no longer dangling (created), removing", danglingIndex);
DanglingIndex removed = danglingIndices.remove(danglingIndex);
removed.future.cancel(false);
}
}
// delete indices that are no longer part of the metadata
try {
for (String indexName : nodeEnv.findAllIndices()) {
// if we have the index on the metadata, don't delete it
if (newMetaData.hasIndex(indexName)) {
continue;
}
if (danglingIndices.containsKey(indexName)) {
// already dangling, continue
continue;
}
IndexMetaData indexMetaData = loadIndex(indexName);
if (indexMetaData != null) {
if (danglingTimeout.millis() == 0) {
logger.info(
"[{}] dangling index, exists on local file system, but not in cluster metadata, timeout set to 0, deleting now",
indexName);
FileSystemUtils.deleteRecursively(nodeEnv.indexLocations(new Index(indexName)));
} else {
logger.info(
"[{}] dangling index, exists on local file system, but not in cluster metadata, scheduling to delete in [{}], auto import to cluster state [{}]",
indexName,
danglingTimeout,
autoImportDangled);
danglingIndices.put(
indexName,
new DanglingIndex(
indexName,
threadPool.schedule(
danglingTimeout,
ThreadPool.Names.SAME,
new RemoveDanglingIndex(indexName))));
}
}
}
} catch (Exception e) {
logger.warn("failed to find dangling indices", e);
}
}
}
if (autoImportDangled.shouldImport() && !danglingIndices.isEmpty()) {
final List<IndexMetaData> dangled = Lists.newArrayList();
for (String indexName : danglingIndices.keySet()) {
IndexMetaData indexMetaData = loadIndex(indexName);
if (indexMetaData == null) {
logger.debug("failed to find state for dangling index [{}]", indexName);
continue;
}
// we might have someone copying over an index, renaming the directory, handle that
if (!indexMetaData.index().equals(indexName)) {
logger.info(
"dangled index directory name is [{}], state name is [{}], renaming to directory name",
indexName,
indexMetaData.index());
indexMetaData =
IndexMetaData.newIndexMetaDataBuilder(indexMetaData).index(indexName).build();
}
if (autoImportDangled == AutoImportDangledState.CLOSED) {
indexMetaData =
IndexMetaData.newIndexMetaDataBuilder(indexMetaData)
.state(IndexMetaData.State.CLOSE)
.build();
}
if (indexMetaData != null) {
dangled.add(indexMetaData);
}
}
IndexMetaData[] dangledIndices = dangled.toArray(new IndexMetaData[dangled.size()]);
try {
allocateDangledIndices.allocateDangled(
dangledIndices,
new LocalAllocateDangledIndices.Listener() {
@Override
public void onResponse(
LocalAllocateDangledIndices.AllocateDangledResponse response) {
logger.trace("allocated dangled");
}
@Override
public void onFailure(Throwable e) {
logger.info("failed to send allocated dangled", e);
}
});
} catch (Exception e) {
logger.warn("failed to send allocate dangled", e);
}
}
}
if (success) {
currentMetaData = newMetaData;
}
}
