Package org.apache.hadoop.hbase.client.MetaScanner

Examples of org.apache.hadoop.hbase.client.MetaScanner.MetaScannerVisitor

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  /**
   * Scan .META. and -ROOT-, adding all regions found to the regionInfo map.
   * @throws IOException if an error is encountered
   */
  void getMetaEntries() throws IOException {
    MetaScannerVisitor visitor = new MetaScannerVisitor() {
      int countRecord = 1;

      // comparator to sort KeyValues with latest modtime
      final Comparator<KeyValue> comp = new Comparator<KeyValue>() {
        public int compare(KeyValue k1, KeyValue k2) {
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    int numRegs = splitKeys == null ? 1 : splitKeys.length + 1;
    int prevRegCount = 0;
    for (int tries = 0; tries < numRetries; ++tries) {
      // Wait for new table to come on-line
      final AtomicInteger actualRegCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        @Override
        public boolean processRow(Result rowResult) throws IOException {
          HRegionInfo info = Writables.getHRegionInfoOrNull(rowResult.getValue(
              HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER));
         
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    }

    public HTableDescriptor[] listTables() throws IOException {
      final TreeSet<HTableDescriptor> uniqueTables =
        new TreeSet<HTableDescriptor>();
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        public boolean processRow(Result result) throws IOException {
          try {
            byte[] value = result.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER);
            HRegionInfo info = null;
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    }

    public boolean isTableAvailable(final byte[] tableName) throws IOException {
      final AtomicBoolean available = new AtomicBoolean(true);
      final AtomicInteger regionCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        @Override
        public boolean processRow(Result row) throws IOException {
          byte[] value = row.getValue(HConstants.CATALOG_FAMILY,
              HConstants.REGIONINFO_QUALIFIER);
          HRegionInfo info = Writables.getHRegionInfoOrNull(value);
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     */
    private void prefetchRegionCache(final byte[] tableName,
        final byte[] row) {
      // Implement a new visitor for MetaScanner, and use it to walk through
      // the .META.
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        public boolean processRow(Result result) throws IOException {
          try {
            byte[] value = result.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER);
            HRegionInfo regionInfo = null;
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      final byte [] tableName, final byte [] rowKey)
  throws IOException {
    final AtomicReference<Pair<HRegionInfo, HServerAddress>> result =
      new AtomicReference<Pair<HRegionInfo, HServerAddress>>(null);

    MetaScannerVisitor visitor =
      new MetaScannerVisitor() {
        @Override
        public boolean processRow(Result data) throws IOException {
          if (data == null || data.size() <= 0) {
            return true;
          }
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      final byte [] tableName, final byte [] rowKey)
  throws IOException {
    final AtomicReference<Pair<HRegionInfo, HServerAddress>> result =
      new AtomicReference<Pair<HRegionInfo, HServerAddress>>(null);

    MetaScannerVisitor visitor =
      new MetaScannerVisitor() {
        @Override
        public boolean processRow(Result data) throws IOException {
          if (data == null || data.size() <= 0) {
            return true;
          }
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    }

    public HTableDescriptor[] listTables() throws IOException {
      final TreeSet<HTableDescriptor> uniqueTables =
        new TreeSet<HTableDescriptor>();
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        public boolean processRow(Result result) throws IOException {
          try {
            byte[] value = result.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER);
            HRegionInfo info = null;
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    }

    public boolean isTableAvailable(final byte[] tableName) throws IOException {
      final AtomicBoolean available = new AtomicBoolean(true);
      final AtomicInteger regionCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        @Override
        public boolean processRow(Result row) throws IOException {
          byte[] value = row.getValue(HConstants.CATALOG_FAMILY,
              HConstants.REGIONINFO_QUALIFIER);
          HRegionInfo info = Writables.getHRegionInfoOrNull(value);
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     */
    private void prefetchRegionCache(final byte[] tableName,
        final byte[] row) {
      // Implement a new visitor for MetaScanner, and use it to walk through
      // the .META.
      MetaScannerVisitor visitor = new MetaScannerVisitor() {
        public boolean processRow(Result result) throws IOException {
          try {
            byte[] value = result.getValue(HConstants.CATALOG_FAMILY,
                HConstants.REGIONINFO_QUALIFIER);
            HRegionInfo regionInfo = null;
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Related Classes of org.apache.hadoop.hbase.client.MetaScanner.MetaScannerVisitor

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  • org.apache.hadoop.hbase.client.HBaseAdmin
  • org.apache.hadoop.hbase.client.HBaseFsck
  • org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation
  • org.apache.hadoop.hbase.client.HConnectionManager$TableServers
  • org.apache.hadoop.hbase.client.HTable
  • org.apache.hadoop.hbase.index.util.SecondaryIndexColocator
  • org.apache.hadoop.hbase.master.CatalogJanitor
  • org.apache.hadoop.hbase.master.HMaster
  • org.apache.hadoop.hbase.master.TestRegionPlacement
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