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Simplify shard-level bulk operation execution 

This commit refactors execution of shard-level
bulk operations to use the same failure handling
for index, delete and update operations.
This commit is contained in:
Areek Zillur 2016-08-22 13:13:29 -04:00
parent 80ca78479f
commit cc993de996
1 changed files with 105 additions and 295 deletions
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396
core/src/main/java/org/elasticsearch/action/bulk/TransportShardBulkAction.java
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@ -21,7 +21,8 @@ package org.elasticsearch.action.bulk;
import org.elasticsearch.ElasticsearchException; import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.ExceptionsHelper; import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.action.ActionRequest; import org.elasticsearch.action.DocWriteResponse;
import org.elasticsearch.action.DocumentRequest;
import org.elasticsearch.action.delete.DeleteRequest; import org.elasticsearch.action.delete.DeleteRequest;
import org.elasticsearch.action.delete.DeleteResponse; import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.delete.TransportDeleteAction; import org.elasticsearch.action.delete.TransportDeleteAction;
@ -29,7 +30,6 @@ import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse; import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.index.TransportIndexAction; import org.elasticsearch.action.index.TransportIndexAction;
import org.elasticsearch.action.support.ActionFilters; import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.replication.ReplicationRequest;
import org.elasticsearch.action.support.replication.TransportWriteAction; import org.elasticsearch.action.support.replication.TransportWriteAction;
import org.elasticsearch.action.support.replication.ReplicationResponse.ShardInfo; import org.elasticsearch.action.support.replication.ReplicationResponse.ShardInfo;
import org.elasticsearch.action.update.UpdateHelper; import org.elasticsearch.action.update.UpdateHelper;
@ -66,9 +66,7 @@ import java.util.Map;
import static org.elasticsearch.action.support.replication.ReplicationOperation.ignoreReplicaException; import static org.elasticsearch.action.support.replication.ReplicationOperation.ignoreReplicaException;
import static org.elasticsearch.action.support.replication.ReplicationOperation.isConflictException; import static org.elasticsearch.action.support.replication.ReplicationOperation.isConflictException;
/** /** Performs shard-level bulk (index, delete or update) operations */
* Performs the index operation.
*/
public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequest, BulkShardResponse> { public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequest, BulkShardResponse> {
public static final String ACTION_NAME = BulkAction.NAME + "[s]"; public static final String ACTION_NAME = BulkAction.NAME + "[s]";
@ -114,8 +112,7 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
VersionType[] preVersionTypes = new VersionType[request.items().length]; VersionType[] preVersionTypes = new VersionType[request.items().length];
Translog.Location location = null; Translog.Location location = null;
for (int requestIndex = 0; requestIndex < request.items().length; requestIndex++) { for (int requestIndex = 0; requestIndex < request.items().length; requestIndex++) {
BulkItemRequest item = request.items()[requestIndex]; location = executeBulkItemRequest(metaData, indexShard, request, preVersions, preVersionTypes, location, requestIndex);
location = handleItem(metaData, request, indexShard, preVersions, preVersionTypes, location, requestIndex, item);
} }
BulkItemResponse[] responses = new BulkItemResponse[request.items().length]; BulkItemResponse[] responses = new BulkItemResponse[request.items().length];
@ -127,204 +124,86 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
return new WriteResult<>(response, location); return new WriteResult<>(response, location);
} }
private Translog.Location handleItem(IndexMetaData metaData, BulkShardRequest request, IndexShard indexShard, long[] preVersions, VersionType[] preVersionTypes, Translog.Location location, int requestIndex, BulkItemRequest item) { /** Executes bulk item requests and handles request execution exceptions */
if (item.request() instanceof IndexRequest) { private Translog.Location executeBulkItemRequest(IndexMetaData metaData, IndexShard indexShard,
location = index(metaData, request, indexShard, preVersions, preVersionTypes, location, requestIndex, item); BulkShardRequest request,
} else if (item.request() instanceof DeleteRequest) { long[] preVersions, VersionType[] preVersionTypes,
location = delete(request, indexShard, preVersions, preVersionTypes, location, requestIndex, item); Translog.Location location, int requestIndex) {
} else if (item.request() instanceof UpdateRequest) { preVersions[requestIndex] = request.items()[requestIndex].request().version();
Tuple<Translog.Location, BulkItemRequest> tuple = update(metaData, request, indexShard, preVersions, preVersionTypes, location, requestIndex, item); preVersionTypes[requestIndex] = request.items()[requestIndex].request().versionType();
location = tuple.v1(); DocumentRequest.OpType opType = request.items()[requestIndex].request().opType();
item = tuple.v2(); try {
} else { WriteResult<? extends DocWriteResponse> writeResult = innerExecuteBulkItemRequest(metaData, indexShard,
throw new IllegalStateException("Unexpected index operation: " + item.request()); request, requestIndex);
if (writeResult.getResponse().getResult() != DocWriteResponse.Result.NOOP) {
location = locationToSync(location, writeResult.getLocation());
} }
// update the bulk item request because update request execution can mutate the bulk item request
assert item.getPrimaryResponse() != null; BulkItemRequest item = request.items()[requestIndex];
// add the response
setResponse(item, new BulkItemResponse(item.id(), opType, writeResult.getResponse()));
} catch (Exception e) {
// rethrow the failure if we are going to retry on primary and let parent failure to handle it
if (retryPrimaryException(e)) {
// restore updated versions...
for (int j = 0; j < requestIndex; j++) {
DocumentRequest<?> documentRequest = request.items()[j].request();
documentRequest.version(preVersions[j]);
documentRequest.versionType(preVersionTypes[j]);
}
throw (ElasticsearchException) e;
}
BulkItemRequest item = request.items()[requestIndex];
DocumentRequest<?> documentRequest = item.request();
if (ExceptionsHelper.status(e) == RestStatus.CONFLICT) {
logger.trace("{} failed to execute bulk item ({}) {}", e, request.shardId(),
documentRequest.opType().getLowercase(), request);
} else {
logger.debug("{} failed to execute bulk item ({}) {}", e, request.shardId(),
documentRequest.opType().getLowercase(), request);
}
// if its a conflict failure, and we already executed the request on a primary (and we execute it
// again, due to primary relocation and only processing up to N bulk items when the shard gets closed)
// then just use the response we got from the successful execution
if (item.getPrimaryResponse() != null && isConflictException(e)) {
setResponse(item, item.getPrimaryResponse());
} else {
setResponse(item, new BulkItemResponse(item.id(), documentRequest.opType(),
new BulkItemResponse.Failure(request.index(), documentRequest.type(), documentRequest.id(), e)));
}
}
assert request.items()[requestIndex].getPrimaryResponse() != null;
assert preVersionTypes[requestIndex] != null; assert preVersionTypes[requestIndex] != null;
return location; return location;
} }
private Translog.Location index(IndexMetaData metaData, BulkShardRequest request, IndexShard indexShard, long[] preVersions, VersionType[] preVersionTypes, Translog.Location location, int requestIndex, BulkItemRequest item) { private WriteResult<? extends DocWriteResponse> innerExecuteBulkItemRequest(IndexMetaData metaData, IndexShard indexShard,
IndexRequest indexRequest = (IndexRequest) item.request(); BulkShardRequest request, int requestIndex) throws Exception {
preVersions[requestIndex] = indexRequest.version(); DocumentRequest<?> itemRequest = request.items()[requestIndex].request();
preVersionTypes[requestIndex] = indexRequest.versionType(); switch (itemRequest.opType()) {
case CREATE:
case INDEX:
return TransportIndexAction.executeIndexRequestOnPrimary(((IndexRequest) itemRequest), indexShard, mappingUpdatedAction);
case UPDATE:
int maxAttempts = ((UpdateRequest) itemRequest).retryOnConflict();
for (int attemptCount = 0; attemptCount <= maxAttempts; attemptCount++) {
try { try {
WriteResult<IndexResponse> result = shardIndexOperation(request, indexRequest, metaData, indexShard, true); return shardUpdateOperation(metaData, indexShard, request, requestIndex, ((UpdateRequest) itemRequest));
location = locationToSync(location, result.getLocation());
// add the response
IndexResponse indexResponse = result.getResponse();
setResponse(item, new BulkItemResponse(item.id(), indexRequest.opType(), indexResponse));
} catch (Exception e) { } catch (Exception e) {
// rethrow the failure if we are going to retry on primary and let parent failure to handle it final Throwable cause = ExceptionsHelper.unwrapCause(e);
if (retryPrimaryException(e)) { if (attemptCount == maxAttempts // bubble up exception when we run out of attempts
// restore updated versions... || (cause instanceof VersionConflictEngineException) == false) { // or when exception is not a version conflict
for (int j = 0; j < requestIndex; j++) { throw e;
applyVersion(request.items()[j], preVersions[j], preVersionTypes[j]);
}
throw (ElasticsearchException) e;
}
logFailure(e, "index", request.shardId(), indexRequest);
// if its a conflict failure, and we already executed the request on a primary (and we execute it
// again, due to primary relocation and only processing up to N bulk items when the shard gets closed)
// then just use the response we got from the successful execution
if (item.getPrimaryResponse() != null && isConflictException(e)) {
setResponse(item, item.getPrimaryResponse());
} else {
setResponse(item, new BulkItemResponse(item.id(), indexRequest.opType(),
new BulkItemResponse.Failure(request.index(), indexRequest.type(), indexRequest.id(), e)));
} }
} }
return location;
} }
throw new IllegalStateException("version conflict exception should bubble up on last attempt");
private <ReplicationRequestT extends ReplicationRequest<ReplicationRequestT>> void logFailure(Throwable t, String operation, ShardId shardId, ReplicationRequest<ReplicationRequestT> request) { case DELETE:
if (ExceptionsHelper.status(t) == RestStatus.CONFLICT) { return TransportDeleteAction.executeDeleteRequestOnPrimary(((DeleteRequest) itemRequest), indexShard);
logger.trace("{} failed to execute bulk item ({}) {}", t, shardId, operation, request); default: throw new IllegalStateException("unexpected opType [" + itemRequest.opType() + "] found");
} else {
logger.debug("{} failed to execute bulk item ({}) {}", t, shardId, operation, request);
} }
} }
private Translog.Location delete(BulkShardRequest request, IndexShard indexShard, long[] preVersions, VersionType[] preVersionTypes, Translog.Location location, int requestIndex, BulkItemRequest item) {
DeleteRequest deleteRequest = (DeleteRequest) item.request();
preVersions[requestIndex] = deleteRequest.version();
preVersionTypes[requestIndex] = deleteRequest.versionType();
try {
// add the response
final WriteResult<DeleteResponse> writeResult = TransportDeleteAction.executeDeleteRequestOnPrimary(deleteRequest, indexShard);
DeleteResponse deleteResponse = writeResult.getResponse();
location = locationToSync(location, writeResult.getLocation());
setResponse(item, new BulkItemResponse(item.id(), deleteRequest.opType(), deleteResponse));
} catch (Exception e) {
// rethrow the failure if we are going to retry on primary and let parent failure to handle it
if (retryPrimaryException(e)) {
// restore updated versions...
for (int j = 0; j < requestIndex; j++) {
applyVersion(request.items()[j], preVersions[j], preVersionTypes[j]);
}
throw (ElasticsearchException) e;
}
logFailure(e, "delete", request.shardId(), deleteRequest);
// if its a conflict failure, and we already executed the request on a primary (and we execute it
// again, due to primary relocation and only processing up to N bulk items when the shard gets closed)
// then just use the response we got from the successful execution
if (item.getPrimaryResponse() != null && isConflictException(e)) {
setResponse(item, item.getPrimaryResponse());
} else {
setResponse(item, new BulkItemResponse(item.id(), deleteRequest.opType(),
new BulkItemResponse.Failure(request.index(), deleteRequest.type(), deleteRequest.id(), e)));
}
}
return location;
}
private Tuple<Translog.Location, BulkItemRequest> update(IndexMetaData metaData, BulkShardRequest request, IndexShard indexShard, long[] preVersions, VersionType[] preVersionTypes, Translog.Location location, int requestIndex, BulkItemRequest item) {
UpdateRequest updateRequest = (UpdateRequest) item.request();
preVersions[requestIndex] = updateRequest.version();
preVersionTypes[requestIndex] = updateRequest.versionType();
// We need to do the requested retries plus the initial attempt. We don't do < 1+retry_on_conflict because retry_on_conflict may be Integer.MAX_VALUE
for (int updateAttemptsCount = 0; updateAttemptsCount <= updateRequest.retryOnConflict(); updateAttemptsCount++) {
UpdateResult updateResult;
try {
updateResult = shardUpdateOperation(metaData, request, updateRequest, indexShard);
} catch (Exception t) {
updateResult = new UpdateResult(null, null, false, t, null);
}
if (updateResult.success()) {
if (updateResult.writeResult != null) {
location = locationToSync(location, updateResult.writeResult.getLocation());
}
switch (updateResult.result.getResponseResult()) {
case CREATED:
case UPDATED:
@SuppressWarnings("unchecked")
WriteResult<IndexResponse> result = updateResult.writeResult;
IndexRequest indexRequest = updateResult.request();
BytesReference indexSourceAsBytes = indexRequest.source();
// add the response
IndexResponse indexResponse = result.getResponse();
UpdateResponse updateResponse = new UpdateResponse(indexResponse.getShardInfo(), indexResponse.getShardId(), indexResponse.getType(), indexResponse.getId(), indexResponse.getVersion(), indexResponse.getResult());
if (updateRequest.fields() != null && updateRequest.fields().length > 0) {
Tuple<XContentType, Map<String, Object>> sourceAndContent = XContentHelper.convertToMap(indexSourceAsBytes, true);
updateResponse.setGetResult(updateHelper.extractGetResult(updateRequest, request.index(), indexResponse.getVersion(), sourceAndContent.v2(), sourceAndContent.v1(), indexSourceAsBytes));
}
item = request.items()[requestIndex] = new BulkItemRequest(request.items()[requestIndex].id(), indexRequest);
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(), updateResponse));
break;
case DELETED:
@SuppressWarnings("unchecked")
WriteResult<DeleteResponse> writeResult = updateResult.writeResult;
DeleteResponse response = writeResult.getResponse();
DeleteRequest deleteRequest = updateResult.request();
updateResponse = new UpdateResponse(response.getShardInfo(), response.getShardId(), response.getType(), response.getId(), response.getVersion(), response.getResult());
updateResponse.setGetResult(updateHelper.extractGetResult(updateRequest, request.index(), response.getVersion(), updateResult.result.updatedSourceAsMap(), updateResult.result.updateSourceContentType(), null));
// Replace the update request to the translated delete request to execute on the replica.
item = request.items()[requestIndex] = new BulkItemRequest(request.items()[requestIndex].id(), deleteRequest);
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(), updateResponse));
break;
case NOOP:
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(), updateResult.noopResult));
item.setIgnoreOnReplica(); // no need to go to the replica
break;
default:
throw new IllegalStateException("Illegal operation " + updateResult.result.getResponseResult());
}
// NOTE: Breaking out of the retry_on_conflict loop!
break;
} else if (updateResult.failure()) {
Throwable e = updateResult.error;
if (updateResult.retry) {
// updateAttemptCount is 0 based and marks current attempt, if it's equal to retryOnConflict we are going out of the iteration
if (updateAttemptsCount >= updateRequest.retryOnConflict()) {
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(),
new BulkItemResponse.Failure(request.index(), updateRequest.type(), updateRequest.id(), e)));
}
} else {
// rethrow the failure if we are going to retry on primary and let parent failure to handle it
if (retryPrimaryException(e)) {
// restore updated versions...
for (int j = 0; j < requestIndex; j++) {
applyVersion(request.items()[j], preVersions[j], preVersionTypes[j]);
}
throw (ElasticsearchException) e;
}
// if its a conflict failure, and we already executed the request on a primary (and we execute it
// again, due to primary relocation and only processing up to N bulk items when the shard gets closed)
// then just use the response we got from the successful execution
if (item.getPrimaryResponse() != null && isConflictException(e)) {
setResponse(item, item.getPrimaryResponse());
} else if (updateResult.result == null) {
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(), new BulkItemResponse.Failure(request.index(), updateRequest.type(), updateRequest.id(), e)));
} else {
switch (updateResult.result.getResponseResult()) {
case CREATED:
case UPDATED:
IndexRequest indexRequest = updateResult.request();
logFailure(e, "index", request.shardId(), indexRequest);
setResponse(item, new BulkItemResponse(item.id(), updateRequest.opType(),
new BulkItemResponse.Failure(request.index(), indexRequest.type(), indexRequest.id(), e)));
break;
case DELETED:
DeleteRequest deleteRequest = updateResult.request();
logFailure(e, "delete", request.shardId(), deleteRequest);
setResponse(item, new BulkItemResponse(item.id(), deleteRequest.opType(),
new BulkItemResponse.Failure(request.index(), deleteRequest.type(), deleteRequest.id(), e)));
break;
default:
throw new IllegalStateException("Illegal operation " + updateResult.result.getResponseResult());
}
}
// NOTE: Breaking out of the retry_on_conflict loop!
break;
}
}
}
return Tuple.tuple(location, item);
}
private void setResponse(BulkItemRequest request, BulkItemResponse response) { private void setResponse(BulkItemRequest request, BulkItemResponse response) {
request.setPrimaryResponse(response); request.setPrimaryResponse(response);
if (response.isFailed()) { if (response.isFailed()) {
@ -335,105 +214,48 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
} }
} }
private WriteResult<IndexResponse> shardIndexOperation(BulkShardRequest request, IndexRequest indexRequest, IndexMetaData metaData, /**
IndexShard indexShard, boolean processed) throws Exception { * Executes update request, doing a get and translating update to a index or delete operation
* NOTE: all operations except NOOP, reassigns the bulk item request
MappingMetaData mappingMd = metaData.mappingOrDefault(indexRequest.type()); */
if (!processed) { private WriteResult<? extends DocWriteResponse> shardUpdateOperation(IndexMetaData metaData, IndexShard indexShard,
indexRequest.process(mappingMd, allowIdGeneration, request.index()); BulkShardRequest request,
} int requestIndex, UpdateRequest updateRequest)
return TransportIndexAction.executeIndexRequestOnPrimary(indexRequest, indexShard, mappingUpdatedAction); throws Exception {
} // Todo: capture read version conflicts, missing documents and malformed script errors in the write result due to get request
static class UpdateResult {
final UpdateHelper.Result result;
final ActionRequest actionRequest;
final boolean retry;
final Throwable error;
final WriteResult writeResult;
final UpdateResponse noopResult;
UpdateResult(UpdateHelper.Result result, ActionRequest actionRequest, boolean retry, Throwable error, WriteResult writeResult) {
this.result = result;
this.actionRequest = actionRequest;
this.retry = retry;
this.error = error;
this.writeResult = writeResult;
this.noopResult = null;
}
UpdateResult(UpdateHelper.Result result, ActionRequest actionRequest, WriteResult writeResult) {
this.result = result;
this.actionRequest = actionRequest;
this.writeResult = writeResult;
this.retry = false;
this.error = null;
this.noopResult = null;
}
public UpdateResult(UpdateHelper.Result result, UpdateResponse updateResponse) {
this.result = result;
this.noopResult = updateResponse;
this.actionRequest = null;
this.writeResult = null;
this.retry = false;
this.error = null;
}
boolean failure() {
return error != null;
}
boolean success() {
return noopResult != null || writeResult != null;
}
@SuppressWarnings("unchecked")
<T extends ActionRequest> T request() {
return (T) actionRequest;
}
}
private UpdateResult shardUpdateOperation(IndexMetaData metaData, BulkShardRequest bulkShardRequest, UpdateRequest updateRequest, IndexShard indexShard) {
UpdateHelper.Result translate = updateHelper.prepare(updateRequest, indexShard); UpdateHelper.Result translate = updateHelper.prepare(updateRequest, indexShard);
switch (translate.getResponseResult()) { switch (translate.getResponseResult()) {
case CREATED: case CREATED:
case UPDATED: case UPDATED:
IndexRequest indexRequest = translate.action(); IndexRequest indexRequest = translate.action();
try { MappingMetaData mappingMd = metaData.mappingOrDefault(indexRequest.type());
WriteResult result = shardIndexOperation(bulkShardRequest, indexRequest, metaData, indexShard, false); indexRequest.process(mappingMd, allowIdGeneration, request.index());
return new UpdateResult(translate, indexRequest, result); WriteResult<IndexResponse> writeResult = TransportIndexAction.executeIndexRequestOnPrimary(indexRequest, indexShard, mappingUpdatedAction);
} catch (Exception e) { BytesReference indexSourceAsBytes = indexRequest.source();
final Throwable cause = ExceptionsHelper.unwrapCause(e); IndexResponse indexResponse = writeResult.getResponse();
boolean retry = false; UpdateResponse writeUpdateResponse = new UpdateResponse(indexResponse.getShardInfo(), indexResponse.getShardId(), indexResponse.getType(), indexResponse.getId(), indexResponse.getVersion(), indexResponse.getResult());
if (cause instanceof VersionConflictEngineException) { if (updateRequest.fields() != null && updateRequest.fields().length > 0) {
retry = true; Tuple<XContentType, Map<String, Object>> sourceAndContent = XContentHelper.convertToMap(indexSourceAsBytes, true);
} writeUpdateResponse.setGetResult(updateHelper.extractGetResult(updateRequest, request.index(), indexResponse.getVersion(), sourceAndContent.v2(), sourceAndContent.v1(), indexSourceAsBytes));
return new UpdateResult(translate, indexRequest, retry, cause, null);
} }
// Replace the update request to the translated index request to execute on the replica.
request.items()[requestIndex] = new BulkItemRequest(request.items()[requestIndex].id(), indexRequest);
return new WriteResult<>(writeUpdateResponse, writeResult.getLocation());
case DELETED: case DELETED:
DeleteRequest deleteRequest = translate.action(); DeleteRequest deleteRequest = translate.action();
try { WriteResult<DeleteResponse> deleteResult = TransportDeleteAction.executeDeleteRequestOnPrimary(deleteRequest, indexShard);
WriteResult<DeleteResponse> result = TransportDeleteAction.executeDeleteRequestOnPrimary(deleteRequest, indexShard); DeleteResponse response = deleteResult.getResponse();
return new UpdateResult(translate, deleteRequest, result); UpdateResponse deleteUpdateResponse = new UpdateResponse(response.getShardInfo(), response.getShardId(), response.getType(), response.getId(), response.getVersion(), response.getResult());
} catch (Exception e) { deleteUpdateResponse.setGetResult(updateHelper.extractGetResult(updateRequest, request.index(), response.getVersion(), translate.updatedSourceAsMap(), translate.updateSourceContentType(), null));
final Throwable cause = ExceptionsHelper.unwrapCause(e); // Replace the update request to the translated delete request to execute on the replica.
boolean retry = false; request.items()[requestIndex] = new BulkItemRequest(request.items()[requestIndex].id(), deleteRequest);
if (cause instanceof VersionConflictEngineException) { return new WriteResult<>(deleteUpdateResponse, deleteResult.getLocation());
retry = true;
}
return new UpdateResult(translate, deleteRequest, retry, cause, null);
}
case NOOP: case NOOP:
UpdateResponse updateResponse = translate.action(); BulkItemRequest item = request.items()[requestIndex];
indexShard.noopUpdate(updateRequest.type()); indexShard.noopUpdate(updateRequest.type());
return new UpdateResult(translate, updateResponse); item.setIgnoreOnReplica(); // no need to go to the replica
default: return new WriteResult<>(translate.action(), null);
throw new IllegalStateException("Illegal update operation " + translate.getResponseResult()); default: throw new IllegalStateException("Illegal update operation " + translate.getResponseResult());
} }
} }
@ -477,18 +299,6 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
return location; return location;
} }
private void applyVersion(BulkItemRequest item, long version, VersionType versionType) {
if (item.request() instanceof IndexRequest) {
((IndexRequest) item.request()).version(version).versionType(versionType);
} else if (item.request() instanceof DeleteRequest) {
((DeleteRequest) item.request()).version(version).versionType();
} else if (item.request() instanceof UpdateRequest) {
((UpdateRequest) item.request()).version(version).versionType();
} else {
// log?
}
}
private Translog.Location locationToSync(Translog.Location current, Translog.Location next) { private Translog.Location locationToSync(Translog.Location current, Translog.Location next) {
/* here we are moving forward in the translog with each operation. Under the hood /* here we are moving forward in the translog with each operation. Under the hood
* this might cross translog files which is ok since from the user perspective * this might cross translog files which is ok since from the user perspective