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[Feature](batch write part4) Add http api _stream_load_meta to get av…
…ailable nodes (#52910) Signed-off-by: PengFei Li <[email protected]>
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fe/fe-core/src/main/java/com/starrocks/http/rest/StreamLoadMetaAction.java
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| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| package com.starrocks.http.rest; | ||
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| import com.google.common.base.Strings; | ||
| import com.google.gson.annotations.SerializedName; | ||
| import com.starrocks.common.DdlException; | ||
| import com.starrocks.http.ActionController; | ||
| import com.starrocks.http.BaseRequest; | ||
| import com.starrocks.http.BaseResponse; | ||
| import com.starrocks.http.IllegalArgException; | ||
| import com.starrocks.load.batchwrite.RequestCoordinatorBackendResult; | ||
| import com.starrocks.load.batchwrite.TableId; | ||
| import com.starrocks.load.streamload.StreamLoadHttpHeader; | ||
| import com.starrocks.load.streamload.StreamLoadKvParams; | ||
| import com.starrocks.privilege.AccessDeniedException; | ||
| import com.starrocks.privilege.PrivilegeType; | ||
| import com.starrocks.qe.ConnectContext; | ||
| import com.starrocks.server.GlobalStateMgr; | ||
| import com.starrocks.sql.analyzer.Authorizer; | ||
| import com.starrocks.system.ComputeNode; | ||
| import com.starrocks.thrift.TStatusCode; | ||
| import io.netty.handler.codec.http.HttpMethod; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
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| public class StreamLoadMetaAction extends RestBaseAction { | ||
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| private static final Logger LOG = LogManager.getLogger(StreamLoadMetaAction.class); | ||
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| // batch write stream load parameters ===================================================== | ||
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| // The parameter name to specify the type of metas. | ||
| private static final String TYPE_PARAM_NAME = "type"; | ||
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| // The type name for nodes meta. The response will return available BE nodes that can accept load requests. | ||
| // You can also set the parameter NODE_SERVICE_PARAM to specify the required service the nodes can provide. | ||
| // There will be a key named "nodes" in the response json, and the value is also a json which contains fields | ||
| // for each service type. For example, if you want both http and brpc service, the response will be like: | ||
| // "nodes": { | ||
| // "http":"be_ip1:http_port1,be_ip2:http_port2", | ||
| // "brpc":"be_ip1:brpc_port1,be_ip2:brpc_port2" | ||
| // } | ||
| private static final String NODES_TYPE = "nodes"; | ||
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| // The parameter name to specify the service type of the nodes. The value can be "http" or "brpc". | ||
| // If not set this parameter, the response will return all service types. Each type will be a field | ||
| // in the json, such as "http":"be_ip1:http_port1,be_ip2:http_port2" for http service, and | ||
| // "brpc":"be_ip1:brpc_port1,be_ip2:brpc_port2" for brpc service | ||
| private static final String NODE_SERVICE_PARAM = "node_service"; | ||
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| public StreamLoadMetaAction(ActionController controller) { | ||
| super(controller); | ||
| } | ||
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| public static void registerAction(ActionController controller) throws IllegalArgException { | ||
| controller.registerHandler(HttpMethod.GET, | ||
| "/api/{" + DB_KEY + "}/{" + TABLE_KEY + "}/_stream_load_meta", | ||
| new StreamLoadMetaAction(controller)); | ||
| } | ||
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| @Override | ||
| public void executeWithoutPassword(BaseRequest request, BaseResponse response) throws DdlException, | ||
| AccessDeniedException { | ||
| boolean enableBatchWrite = "true".equalsIgnoreCase( | ||
| request.getRequest().headers().get(StreamLoadHttpHeader.HTTP_ENABLE_BATCH_WRITE)); | ||
| if (enableBatchWrite && redirectToLeader(request, response)) { | ||
| return; | ||
| } | ||
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| String dbName = request.getSingleParameter(DB_KEY); | ||
| if (Strings.isNullOrEmpty(dbName)) { | ||
| StreamLoadMetaResult responseResult = new StreamLoadMetaResult( | ||
| TStatusCode.INVALID_ARGUMENT.name(), ActionStatus.FAILED, "No database selected"); | ||
| sendResult(request, response, responseResult); | ||
| } | ||
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| String tableName = request.getSingleParameter(TABLE_KEY); | ||
| if (Strings.isNullOrEmpty(tableName)) { | ||
| StreamLoadMetaResult responseResult = new StreamLoadMetaResult( | ||
| TStatusCode.INVALID_ARGUMENT.name(), ActionStatus.FAILED, "No table selected"); | ||
| sendResult(request, response, responseResult); | ||
| } | ||
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| Authorizer.checkTableAction(ConnectContext.get().getCurrentUserIdentity(), ConnectContext.get().getCurrentRoleIds(), | ||
| dbName, tableName, PrivilegeType.INSERT); | ||
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| if (!enableBatchWrite) { | ||
| processNormalStreamLoad(request, response, dbName, tableName); | ||
| } else { | ||
| processBatchWriteStreamLoad(request, response, dbName, tableName); | ||
| } | ||
| } | ||
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| private void processNormalStreamLoad(BaseRequest request, BaseResponse response, String dbName, String tableName) { | ||
| // currently there is no meta for normal stream load, and just return a success response. | ||
| StreamLoadMetaResult responseResult = | ||
| new StreamLoadMetaResult(TStatusCode.OK.name(), ActionStatus.OK, ""); | ||
| sendResult(request, response, responseResult); | ||
| } | ||
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| private void processBatchWriteStreamLoad( | ||
| BaseRequest request, BaseResponse response, String dbName, String tableName) { | ||
| TableId tableId = new TableId(dbName, tableName); | ||
| StreamLoadKvParams params = StreamLoadKvParams.fromHttpHeaders(request.getRequest().headers()); | ||
| RequestCoordinatorBackendResult result = GlobalStateMgr.getCurrentState() | ||
| .getBatchWriteMgr().requestCoordinatorBackends(tableId, params); | ||
| if (!result.isOk()) { | ||
| StreamLoadMetaResult responseResult = new StreamLoadMetaResult( | ||
| result.getStatus().status_code.name(), ActionStatus.FAILED, | ||
| result.getStatus().error_msgs.get(0)); | ||
| sendResult(request, response, responseResult); | ||
| return; | ||
| } | ||
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| List<ComputeNode> nodes = result.getValue(); | ||
| StreamLoadMetaResult responseResult = | ||
| new StreamLoadMetaResult(TStatusCode.OK.name(), ActionStatus.OK, ""); | ||
| List<String> metaTypeList = request.getArrayParameter(TYPE_PARAM_NAME); | ||
| boolean allMetas = metaTypeList == null || metaTypeList.isEmpty(); | ||
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| if (allMetas || metaTypeList.contains(NODES_TYPE)) { | ||
| List<String> serviceTypeList = request.getArrayParameter(NODE_SERVICE_PARAM); | ||
| boolean allServiceTypes = serviceTypeList == null || serviceTypeList.isEmpty(); | ||
| if (allServiceTypes || serviceTypeList.contains("http")) { | ||
| String httpNodes = nodes.stream() | ||
| .map(node -> node.getHost() + ":" + node.getHttpPort()) | ||
| .collect(Collectors.joining(",")); | ||
| responseResult.addNodesMeta("http", httpNodes); | ||
| } | ||
| if (allServiceTypes || serviceTypeList.contains("brpc")) { | ||
| String brpcNodes = nodes.stream() | ||
| .map(node -> node.getHost() + ":" + node.getBrpcPort()) | ||
| .collect(Collectors.joining(",")); | ||
| responseResult.addNodesMeta("brpc", brpcNodes); | ||
| } | ||
| } | ||
| sendResult(request, response, responseResult); | ||
| } | ||
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| public static class StreamLoadMetaResult extends RestBaseResult { | ||
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| // metas for batch write ======================================== | ||
|
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| // service type -> nodes list in format "be_ip1:port1,be_ip2:port2" | ||
| @SerializedName(NODES_TYPE) | ||
| private Map<String, String> nodesMap; | ||
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| public StreamLoadMetaResult(String code, ActionStatus status, String msg) { | ||
| super(code, status, msg); | ||
| } | ||
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| public void addNodesMeta(String serviceType, String nodes) { | ||
| if (nodesMap == null) { | ||
| nodesMap = new HashMap<>(); | ||
| } | ||
| nodesMap.put(serviceType, nodes); | ||
| } | ||
| } | ||
| } |
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