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.apache.hadoop.hbase.util.EnvironmentEdgeManager;
  23 import org.junit.Test;
  24
  25 public class CloneSnapshotFromClientCloneLinksAfterDeleteTestBase
  26     extends CloneSnapshotFromClientTestBase {
  27
  28   /**
  29    * Verify that tables created from the snapshot are still alive after source table deletion.
  30    */
  31   @Test
  32   public void testCloneLinksAfterDelete() throws IOException, InterruptedException {
  33     // Clone a table from the first snapshot
  34     final TableName clonedTableName =
  35       TableName.valueOf(getValidMethodName() + "1-" + EnvironmentEdgeManager.currentTime());
  36     admin.cloneSnapshot(snapshotName0, clonedTableName);
  37     verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
  38
  39     // Take a snapshot of this cloned table.
  40     admin.disableTable(clonedTableName);
  41     admin.snapshot(snapshotName2, clonedTableName);
  42
  43     // Clone the snapshot of the cloned table
  44     final TableName clonedTableName2 =
  45       TableName.valueOf(getValidMethodName() + "2-" + EnvironmentEdgeManager.currentTime());
  46     admin.cloneSnapshot(snapshotName2, clonedTableName2);
  47     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  48     admin.disableTable(clonedTableName2);
  49
  50     // Remove the original table
  51     TEST_UTIL.deleteTable(tableName);
  52     waitCleanerRun();
  53
  54     // Verify the first cloned table
  55     admin.enableTable(clonedTableName);
  56     verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
  57
  58     // Verify the second cloned table
  59     admin.enableTable(clonedTableName2);
  60     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  61     admin.disableTable(clonedTableName2);
  62
  63     // Delete the first cloned table
  64     TEST_UTIL.deleteTable(clonedTableName);
  65     waitCleanerRun();
  66
  67     // Verify the second cloned table
  68     admin.enableTable(clonedTableName2);
  69     verifyRowCount(TEST_UTIL, clonedTableName2, snapshot0Rows);
  70
  71     // Clone a new table from cloned
  72     final TableName clonedTableName3 =
  73       TableName.valueOf(getValidMethodName() + "3-" + EnvironmentEdgeManager.currentTime());
  74     admin.cloneSnapshot(snapshotName2, clonedTableName3);
  75     verifyRowCount(TEST_UTIL, clonedTableName3, snapshot0Rows);
  76
  77     // Delete the cloned tables
  78     TEST_UTIL.deleteTable(clonedTableName2);
  79     TEST_UTIL.deleteTable(clonedTableName3);
  80     admin.deleteSnapshot(snapshotName2);
  81   }
  82
  83   private void waitCleanerRun() throws InterruptedException {
  84     TEST_UTIL.getMiniHBaseCluster().getMaster().getHFileCleaner().choreForTesting();
  85   }
  86 }