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

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

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    for (int tries = 0; tries < this.numRetries * this.retryLongerMultiplier;
      ++tries) {
      if (!doneWithMetaScan) {
        // Wait for new table to come on-line
        final AtomicInteger actualRegCount = new AtomicInteger(0);
        MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
          @Override
          public boolean processRow(Result rowResult) throws IOException {
            if (rowResult == null || rowResult.size() <= 0) {
              return true;
            }
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    Pair<HRegionInfo, ServerName> pair = MetaReader.getRegion(ct, tableNameOrRegionName);
    if (pair == null) {
      final AtomicReference<Pair<HRegionInfo, ServerName>> result =
        new AtomicReference<Pair<HRegionInfo, ServerName>>(null);
      final String encodedName = Bytes.toString(tableNameOrRegionName);
      MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result data) throws IOException {
          if (data == null || data.size() <= 0) {
            return true;
          }
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      // Will remove later if we can fix it
      errors.reportError("Fatal error: unable to get root region location. Exiting...");
      return false;
    }

    MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
      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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      final byte [] tableName, final byte [] rowKey)
  throws IOException {
    final AtomicReference<Pair<HRegionInfo, ServerName>> result =
      new AtomicReference<Pair<HRegionInfo, ServerName>>(null);

    MetaScannerVisitor visitor =
      new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result data) throws IOException {
          if (data == null || data.size() <= 0) {
            return true;
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    int prevRegCount = 0;
    for (int tries = 0; tries < this.numRetries * this.retryLongerMultiplier;
      ++tries) {
      // Wait for new table to come on-line
      final AtomicInteger actualRegCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result rowResult) throws IOException {
          HRegionInfo info = Writables.getHRegionInfoOrNull(
              rowResult.getValue(HConstants.CATALOG_FAMILY,
                  HConstants.REGIONINFO_QUALIFIER));
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      // Will remove later if we can fix it
      errors.reportError("Fatal error: unable to get root region location. Exiting...");
      return false;
    }

    MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
      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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      final byte [] tableName, final byte [] rowKey)
  throws IOException {
    final AtomicReference<Pair<HRegionInfo, ServerName>> result =
      new AtomicReference<Pair<HRegionInfo, ServerName>>(null);

    MetaScannerVisitor visitor =
      new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result data) throws IOException {
          if (data == null || data.size() <= 0) {
            return true;
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    @Override
    public boolean isTableAvailable(final TableName tableName) throws IOException {
      final AtomicBoolean available = new AtomicBoolean(true);
      final AtomicInteger regionCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result row) throws IOException {
          HRegionInfo info = MetaScanner.getHRegionInfo(row);
          if (info != null && !info.isSplitParent()) {
            if (tableName.equals(info.getTable())) {
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    @Override
    public boolean isTableAvailable(final TableName tableName, final byte[][] splitKeys)
        throws IOException {
      final AtomicBoolean available = new AtomicBoolean(true);
      final AtomicInteger regionCount = new AtomicInteger(0);
      MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
        @Override
        public boolean processRow(Result row) throws IOException {
          HRegionInfo info = MetaScanner.getHRegionInfo(row);
          if (info != null && !info.isSplitParent()) {
            if (tableName.equals(info.getTable())) {
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     */
    private void prefetchRegionCache(final TableName tableName,
        final byte[] row) {
      // Implement a new visitor for MetaScanner, and use it to walk through
      // the hbase:meta
      MetaScannerVisitor visitor = new MetaScannerVisitorBase() {
        public boolean processRow(Result result) throws IOException {
          try {
            HRegionInfo regionInfo = MetaScanner.getHRegionInfo(result);
            if (regionInfo == null) {
              return true;
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Related Classes of org.apache.hadoop.hbase.client.MetaScanner.MetaScannerVisitor

  • org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation
  • org.apache.hadoop.hbase.client.HBaseAdmin
  • org.apache.hadoop.hbase.client.HBaseFsck
  • org.apache.hadoop.hbase.client.HConnectionManager$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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