How to use

verifyReplicasCameOnline

method

in

org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils

private void verifyReplicasCameOnline(TableName tableName) throws IOException {
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}

@Test
public void testCloneSnapshotOfCloned() throws IOException, InterruptedException {
 TableName clonedTableName =
  TableName.valueOf(getValidMethodName() + "-" + System.currentTimeMillis());
 admin.cloneSnapshot(snapshotName0, clonedTableName);
 verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(clonedTableName, admin, getNumReplicas());
 admin.disableTable(clonedTableName);
 admin.snapshot(snapshotName2, clonedTableName);
 TEST_UTIL.deleteTable(clonedTableName);
 waitCleanerRun();
 admin.cloneSnapshot(snapshotName2, clonedTableName);
 verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(clonedTableName, admin, getNumReplicas());
 TEST_UTIL.deleteTable(clonedTableName);
}

@Test
public void testCloneAndRestoreSnapshot() throws IOException, InterruptedException {
 TEST_UTIL.deleteTable(tableName);
 waitCleanerRun();
 admin.cloneSnapshot(snapshotName0, tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 waitCleanerRun();
 admin.disableTable(tableName);
 admin.restoreSnapshot(snapshotName0);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}

@Test
public void testRestoreSnapshot() throws IOException {
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 admin.disableTable(tableName);
 admin.snapshot(snapshotName1, tableName);
 // Restore from snapshot-0
 admin.restoreSnapshot(snapshotName0);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from emptySnapshot
 admin.disableTable(tableName);
 admin.restoreSnapshot(emptySnapshot);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, 0);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from snapshot-1
 admin.disableTable(tableName);
 admin.restoreSnapshot(snapshotName1);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from snapshot-1
 TEST_UTIL.deleteTable(tableName);
 admin.restoreSnapshot(snapshotName1);
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}

admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot0Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, 0);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot1Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.restoreSnapshot(snapshotName1);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot1Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());

admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot0Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, 0);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.enableTable(tableName);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot1Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
admin.restoreSnapshot(snapshotName1);
SnapshotTestingUtils.verifyRowCount(UTIL, tableName, snapshot1Rows);
SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());

 @Test
 public void testRestoreSnapshotAfterTruncate() throws Exception {
  TableName tableName = TableName.valueOf(getValidMethodName());
  SnapshotTestingUtils.createTable(TEST_UTIL, tableName, getNumReplicas(), FAMILY);
  SnapshotTestingUtils.loadData(TEST_UTIL, tableName, 500, FAMILY);
  int numOfRows = 0;

  try (Table table = TEST_UTIL.getConnection().getTable(tableName)) {
   numOfRows = countRows(table);
  }
  // take snapshot
  admin.snapshot("snap", tableName);
  admin.disableTable(tableName);
  admin.truncateTable(tableName, false);
  admin.disableTable(tableName);
  admin.restoreSnapshot("snap");

  admin.enableTable(tableName);
  verifyRowCount(TEST_UTIL, tableName, numOfRows);
  SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 }
}

private void verifyReplicasCameOnline(TableName tableName) throws IOException {
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}

@Test
public void testCloneSnapshotOfCloned() throws IOException, InterruptedException {
 TableName clonedTableName =
  TableName.valueOf(getValidMethodName() + "-" + System.currentTimeMillis());
 admin.cloneSnapshot(snapshotName0, clonedTableName);
 verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(clonedTableName, admin, getNumReplicas());
 admin.disableTable(clonedTableName);
 admin.snapshot(snapshotName2, clonedTableName);
 TEST_UTIL.deleteTable(clonedTableName);
 waitCleanerRun();
 admin.cloneSnapshot(snapshotName2, clonedTableName);
 verifyRowCount(TEST_UTIL, clonedTableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(clonedTableName, admin, getNumReplicas());
 TEST_UTIL.deleteTable(clonedTableName);
}

@Test
public void testCloneAndRestoreSnapshot() throws IOException, InterruptedException {
 TEST_UTIL.deleteTable(tableName);
 waitCleanerRun();
 admin.cloneSnapshot(snapshotName0, tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 waitCleanerRun();
 admin.disableTable(tableName);
 admin.restoreSnapshot(snapshotName0);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}

@Test
public void testRestoreSnapshot() throws IOException {
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 admin.disableTable(tableName);
 admin.snapshot(snapshotName1, tableName);
 // Restore from snapshot-0
 admin.restoreSnapshot(snapshotName0);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot0Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from emptySnapshot
 admin.disableTable(tableName);
 admin.restoreSnapshot(emptySnapshot);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, 0);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from snapshot-1
 admin.disableTable(tableName);
 admin.restoreSnapshot(snapshotName1);
 admin.enableTable(tableName);
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
 // Restore from snapshot-1
 TEST_UTIL.deleteTable(tableName);
 admin.restoreSnapshot(snapshotName1);
 verifyRowCount(TEST_UTIL, tableName, snapshot1Rows);
 SnapshotTestingUtils.verifyReplicasCameOnline(tableName, admin, getNumReplicas());
}