gerlowskija commented on code in PR #1458: URL: https://github.com/apache/solr/pull/1458#discussion_r1144825350
########## solr/core/src/java/org/apache/solr/handler/admin/api/InstallCoreDataAPI.java: ########## @@ -0,0 +1,136 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 + * + * http://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. + */ + +package org.apache.solr.handler.admin.api; + +import com.fasterxml.jackson.annotation.JsonProperty; +import org.apache.solr.cloud.CloudDescriptor; +import org.apache.solr.cloud.ZkController; +import org.apache.solr.cloud.ZkShardTerms; +import org.apache.solr.common.SolrException; +import org.apache.solr.common.cloud.Slice; +import org.apache.solr.common.params.CoreAdminParams; +import org.apache.solr.core.CoreContainer; +import org.apache.solr.core.SolrCore; +import org.apache.solr.core.backup.repository.BackupRepository; +import org.apache.solr.handler.RestoreCore; +import org.apache.solr.handler.admin.CoreAdminHandler; +import org.apache.solr.jersey.JacksonReflectMapWriter; +import org.apache.solr.jersey.PermissionName; +import org.apache.solr.jersey.SolrJerseyResponse; +import org.apache.solr.request.SolrQueryRequest; +import org.apache.solr.response.SolrQueryResponse; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.ws.rs.POST; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.Produces; + +import java.lang.invoke.MethodHandles; +import java.net.URI; +import java.util.Set; +import java.util.stream.Collectors; + +import static org.apache.solr.client.solrj.impl.BinaryResponseParser.BINARY_CONTENT_TYPE_V2; +import static org.apache.solr.security.PermissionNameProvider.Name.CORE_EDIT_PERM; + +@Path("/cores/{coreName}/install") +public class InstallCoreDataAPI extends CoreAdminAPIBase { + + private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); + + public InstallCoreDataAPI(CoreContainer coreContainer, CoreAdminHandler.CoreAdminAsyncTracker coreAdminAsyncTracker, SolrQueryRequest req, SolrQueryResponse rsp) { + super(coreContainer, coreAdminAsyncTracker, req, rsp); + } + + @POST + @Produces({"application/json", "application/xml", BINARY_CONTENT_TYPE_V2}) + @PermissionName(CORE_EDIT_PERM) + public SolrJerseyResponse installCoreData(@PathParam("coreName") String coreName, InstallCoreDataRequestBody requestBody) throws Exception { + log.info("JEGERLOW: In install-core-data v2 API with coreName {}", coreName); + final SolrJerseyResponse response = instantiateJerseyResponse(SolrJerseyResponse.class); + + // TODO Actual implementation (look at RESTORECORE for example) + final ZkController zkController = coreContainer.getZkController(); + if (zkController == null) { + throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Only valid for SolrCloud"); + } + + try (BackupRepository repository = coreContainer.newBackupRepository(requestBody.repository); SolrCore core = coreContainer.getCore(coreName)) { + String location = repository.getBackupLocation(requestBody.location); + if (location == null) { + throw new SolrException( + SolrException.ErrorCode.BAD_REQUEST, + "'location' is not specified as a query" + + " parameter or as a default repository property"); + } + + URI locationUri = repository.createDirectoryURI(location); + CloudDescriptor cd = core.getCoreDescriptor().getCloudDescriptor(); + // this core must be the only replica in its shard otherwise + // we cannot guarantee consistency between replicas because when we add data (or restore + // index) to this replica + Slice slice = + zkController + .getClusterState() + .getCollection(cd.getCollectionName()) + .getSlice(cd.getShardId()); + if (slice.getReplicas().size() != 1 && !core.readOnly) { + throw new SolrException( + SolrException.ErrorCode.SERVER_ERROR, + "Failed to restore core=" + + core.getName() + + ", the core must be the only replica in its shard or it must be read only"); + } + + // TODO RestoreCore.create expects a backup 'name' that it appends to the Uri via 'BackupRepository#resolve'...how does this handle null? + final RestoreCore restoreCore = RestoreCore.create(repository, core, locationUri, ""); + boolean success = restoreCore.doRestore(); + if (!success) { + throw new SolrException( + SolrException.ErrorCode.SERVER_ERROR, "Failed to install data to core=" + core.getName()); + } + + final Set<String> nonLeaderCoreNames = slice.getReplicas() + .stream() + .filter(r -> !r.isLeader()) + .map(r -> r.getName()) + .collect(Collectors.toSet()); + log.info("JEGERLOW Non leader core names are: {} and leader is {}", nonLeaderCoreNames, coreName); Review Comment: Disabling makes sense to me 👍 -- This is an automated message from the Apache Git Service. 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