ctubbsii commented on code in PR #3228: URL: https://github.com/apache/accumulo/pull/3228#discussion_r1278003237
########## test/src/main/java/org/apache/accumulo/test/ExportTableCommandWithMultipleVolumesIT.java: ########## @@ -0,0 +1,156 @@ +/* + * 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 + * + * 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. + */ +package org.apache.accumulo.test; + +import static org.junit.jupiter.api.Assertions.assertTrue; + +import java.io.File; +import java.time.Duration; +import java.util.Map; +import java.util.SortedSet; +import java.util.TreeSet; + +import org.apache.accumulo.core.client.Accumulo; +import org.apache.accumulo.core.client.AccumuloClient; +import org.apache.accumulo.core.client.BatchWriter; +import org.apache.accumulo.core.client.Scanner; +import org.apache.accumulo.core.conf.Property; +import org.apache.accumulo.core.data.Key; +import org.apache.accumulo.core.data.Mutation; +import org.apache.accumulo.core.data.Range; +import org.apache.accumulo.core.data.Value; +import org.apache.accumulo.core.metadata.MetadataTable; +import org.apache.accumulo.core.metadata.schema.MetadataSchema; +import org.apache.accumulo.core.security.Authorizations; +import org.apache.accumulo.harness.AccumuloClusterHarness; +import org.apache.accumulo.miniclusterImpl.MiniAccumuloConfigImpl; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.fs.RawLocalFileSystem; +import org.apache.hadoop.io.Text; +import org.junit.jupiter.api.Test; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class ExportTableCommandWithMultipleVolumesIT extends AccumuloClusterHarness { + private static final Logger log = + LoggerFactory.getLogger(ExportTableCommandWithMultipleVolumesIT.class); + + Path v1, v2; + + public static String[] row_numbers = "1,2,3,4,5,6,7,8,9,10".split(","); + + String baseDirStr = ""; + String baseDir2Str = ""; + String originalVolume = ""; + String secondVolume = ""; + + @Override + protected Duration defaultTimeout() { + return Duration.ofMinutes(1); + } + + @Override + public void configureMiniCluster(MiniAccumuloConfigImpl cfg, Configuration hadoopCoreSite) { + File baseDir = cfg.getDir(); + + // get first volume name + baseDirStr = baseDir.toString(); + String[] baseDirArray = baseDirStr.split("/"); + originalVolume = baseDirArray[2]; + + // get second volume name + String[] baseDir2Array = baseDirArray; + baseDir2Array[2] = baseDir2Array[2] + "2"; Review Comment: > However, an additional volume can not be created or expected to already exist on the machine for a test. I think this statement is incorrect. You should be able to create more than one volume for the test. A volume is simply a URI. You can certainly create two volumes (with `file:///path/to/tempdir/vol1` and `file:///path/to/tempdir/vol2`) by creating these two temporary directories at the beginning of the test, and configuring those in MiniCluster before it starts up. What is preventing that? However, you don't even need to do that much. The table doesn't need to be online or any of its files be read, or actually exist. You can just create an offline table, and add metadata entries that *look* like the table has files in separate volumes. We don't need to actually read the files to do the export and verify that the separate distcp files are created. You can just check that the files were created and contain the expected entries, based on the mock entries you inserted into the metadata of the offline table. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
