hbase-server/src/test/java/org/apache/hadoop/hbase/client/CloneSnapshotFromClientCloneLinksAfterDeleteTestBase.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.client;
  19
  20 import java.io.IOException;
  21 import org.apache.hadoop.hbase.TableName;
  22 import org.junit.Test;
  23
  24 public class CloneSnapshotFromClientCloneLinksAfterDeleteTestBase
  25     extends CloneSnapshotFromClientTestBase {
  26
  27   /**
  28    * Verify that tables created from the snapshot are still alive after source table deletion.
  29    */
  30   @Test
  31   public void testCloneLinksAfterDelete() throws IOException, InterruptedException {
  32     // Clone a table from the first snapshot
  33     final TableName clonedTableName =
  34       TableName.valueOf(getValidMethodName() + "1-" + System.currentTimeMillis());
  35     admin.cloneSnapshot(snapshotName0, clonedTableName);
  36     verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
  37
  38     // Take a snapshot of this cloned table.
  39     admin.disableTable(clonedTableName);
  40     admin.snapshot(snapshotName2, clonedTableName);
  41
  42     // Clone the snapshot of the cloned table
  43     final TableName clonedTableName2 =
  44       TableName.valueOf(getValidMethodName() + "2-" + System.currentTimeMillis());
  45     admin.cloneSnapshot(snapshotName2, clonedTableName2);
  46     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  47     admin.disableTable(clonedTableName2);
  48
  49     // Remove the original table
  50     TEST_UTIL.deleteTable(tableName);
  51     waitCleanerRun();
  52
  53     // Verify the first cloned table
  54     admin.enableTable(clonedTableName);
  55     verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
  56
  57     // Verify the second cloned table
  58     admin.enableTable(clonedTableName2);
  59     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  60     admin.disableTable(clonedTableName2);
  61
  62     // Delete the first cloned table
  63     TEST_UTIL.deleteTable(clonedTableName);
  64     waitCleanerRun();
  65
  66     // Verify the second cloned table
  67     admin.enableTable(clonedTableName2);
  68     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  69
  70     // Clone a new table from cloned
  71     final TableName clonedTableName3 =
  72       TableName.valueOf(getValidMethodName() + "3-" + System.currentTimeMillis());
  73     admin.cloneSnapshot(snapshotName2, clonedTableName3);
  74     verifyRowCount(TEST_UTIL, clonedTableName3, snapshot0Rows);
  75
  76     // Delete the cloned tables
  77     TEST_UTIL.deleteTable(clonedTableName2);
  78     TEST_UTIL.deleteTable(clonedTableName3);
  79     admin.deleteSnapshot(snapshotName2);
  80   }
  81
  82   private void waitCleanerRun() throws InterruptedException {
  83     TEST_UTIL.getMiniHBaseCluster().getMaster().getHFileCleaner().choreForTesting();
  84   }
  85 }