Java CompactionState.NONE属性代码示例

/**
 * Find out if a given region is in compaction now.
 *
 * @param regionId
 * @return a CompactionState
 */
public static CompactionState getCompactionState(
    final long regionId) {
  Long key = Long.valueOf(regionId);
  AtomicInteger major = majorCompactions.get(key);
  AtomicInteger minor = minorCompactions.get(key);
  int state = 0;
  if (minor != null && minor.get() > 0) {
    state += 1;  // use 1 to indicate minor here
  }
  if (major != null && major.get() > 0) {
    state += 2;  // use 2 to indicate major here
  }
  switch (state) {
  case 3:  // 3 = 2 + 1, so both major and minor
    return CompactionState.MAJOR_AND_MINOR;
  case 2:
    return CompactionState.MAJOR;
  case 1:
    return CompactionState.MINOR;
  default:
    return CompactionState.NONE;
  }
}
 

@Override public CompactionState getCompactionState() {
  boolean hasMajor = majorInProgress.get() > 0, hasMinor = minorInProgress.get() > 0;
  return (hasMajor ?
      (hasMinor ? CompactionState.MAJOR_AND_MINOR : CompactionState.MAJOR) :
      (hasMinor ? CompactionState.MINOR : CompactionState.NONE));
}
 

/**
 * @return if a given region is in compaction now.
 */
public CompactionState getCompactionState() {
    boolean hasMajor = majorInProgress.get() > 0, hasMinor = minorInProgress.get() > 0;
    return (hasMajor ? (hasMinor ? CompactionState.MAJOR_AND_MINOR : CompactionState.MAJOR)
            : (hasMinor ? CompactionState.MINOR : CompactionState.NONE));
}
 

@Test
public void testTags() throws Exception {
  Table table = null;
  try {
    TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
    byte[] fam = Bytes.toBytes("info");
    byte[] row = Bytes.toBytes("rowa");
    // column names
    byte[] qual = Bytes.toBytes("qual");

    byte[] row1 = Bytes.toBytes("rowb");

    byte[] row2 = Bytes.toBytes("rowc");

    HTableDescriptor desc = new HTableDescriptor(tableName);
    HColumnDescriptor colDesc = new HColumnDescriptor(fam);
    colDesc.setBlockCacheEnabled(true);
    // colDesc.setDataBlockEncoding(DataBlockEncoding.NONE);
    colDesc.setDataBlockEncoding(DataBlockEncoding.PREFIX_TREE);
    desc.addFamily(colDesc);
    Admin admin = TEST_UTIL.getHBaseAdmin();
    admin.createTable(desc);
    byte[] value = Bytes.toBytes("value");
    table = new HTable(TEST_UTIL.getConfiguration(), tableName);
    Put put = new Put(row);
    put.add(fam, qual, HConstants.LATEST_TIMESTAMP, value);
    put.setAttribute("visibility", Bytes.toBytes("myTag"));
    table.put(put);
    admin.flush(tableName);
    // We are lacking an API for confirming flush request compaction.
    // Just sleep for a short time. We won't be able to confirm flush
    // completion but the test won't hang now or in the future if
    // default compaction policy causes compaction between flush and
    // when we go to confirm it.
    Thread.sleep(1000);

    Put put1 = new Put(row1);
    byte[] value1 = Bytes.toBytes("1000dfsdf");
    put1.add(fam, qual, HConstants.LATEST_TIMESTAMP, value1);
    // put1.setAttribute("visibility", Bytes.toBytes("myTag3"));
    table.put(put1);
    admin.flush(tableName);
    Thread.sleep(1000);

    Put put2 = new Put(row2);
    byte[] value2 = Bytes.toBytes("1000dfsdf");
    put2.add(fam, qual, HConstants.LATEST_TIMESTAMP, value2);
    put2.setAttribute("visibility", Bytes.toBytes("myTag3"));
    table.put(put2);
    admin.flush(tableName);
    Thread.sleep(1000);

    result(fam, row, qual, row2, table, value, value2, row1, value1);

    admin.compact(tableName);
    while (admin.getCompactionState(tableName) != CompactionState.NONE) {
      Thread.sleep(10);
    }
    result(fam, row, qual, row2, table, value, value2, row1, value1);
  } finally {
    if (table != null) {
      table.close();
    }
  }
}
 

/**
 * @return if a given region is in compaction now.
 */
public CompactionState getCompactionState() {
  boolean hasMajor = majorInProgress.get() > 0, hasMinor = minorInProgress.get() > 0;
  return (hasMajor ? (hasMinor ? CompactionState.MAJOR_AND_MINOR : CompactionState.MAJOR)
      : (hasMinor ? CompactionState.MINOR : CompactionState.NONE));
}
 

public static boolean isMajorCompacting(Args args, HBaseAdmin admin, String tableName)
    throws IOException, InterruptedException {
    CompactionState compactionState = admin.getCompactionState(tableName);
    return !(compactionState == CompactionState.NONE || compactionState == CompactionState.MINOR);
}