List of coprocessorExec() Examples

Examples of coprocessorExec()

org.apache.hadoop.hbase.client.HTable.coprocessorExec()
{@inheritDoc}
org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()
Invoke the passed {@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call} againstthe {@link CoprocessorProtocol} instances running in the selected regions.All regions beginning with the region containing the startKey row, through to the region containing the endKey row (inclusive) will be used. If startKey or endKey is null, the first and last regions in the table, respectively, will be used in the range selection. @param protocol the CoprocessorProtocol implementation to call @param startKey start region selection with region containing this row @param endKey select regions up to and including the region containingthis row @param callable wraps the CoprocessorProtocol implementation method callsmade per-region @param < T> CoprocessorProtocol subclass for the remote invocation @param < R> Return type for the{@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call#call(Object)}method @return a Map of region names to{@link org.apache.hadoop.hbase.client.coprocessor.Batch.Call#call(Object)} return values

Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    verifyRegionResults(table, results, ROW_C);


    Batch.Call<PingProtocol,String> helloCall =
      Batch.forMethod(PingProtocol.class, "hello", "NAME");
    results =
        table.coprocessorExec(PingProtocol.class, ROW_A, ROW_C, helloCall);




    verifyRegionResults(table, results, "Hello, NAME", ROW_A);
    verifyRegionResults(table, results, "Hello, NAME", ROW_B);
    verifyRegionResults(table, results, "Hello, NAME", ROW_C);

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

  @Test
  public void testRowRange() throws Throwable {
    HTable table = new HTable(util.getConfiguration(), TEST_TABLE);


    // test empty range
    Map<byte[],String> results = table.coprocessorExec(PingProtocol.class,
        null, null, new Batch.Call<PingProtocol,String>() {
          public String call(PingProtocol instance) {
            return instance.ping();
          }
        });

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Examples of org.apache.hadoop.hbase.client.HTable.coprocessorExec()

    verifyRegionResults(table, results, ROW_A);
    verifyRegionResults(table, results, ROW_B);
    verifyRegionResults(table, results, ROW_C);


    // test start row + empty end
    results = table.coprocessorExec(PingProtocol.class, ROW_BC, null,
        new Batch.Call<PingProtocol,String>() {
          public String call(PingProtocol instance) {
            return instance.ping();
          }
        });

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    protected void clearCache() throws SQLException {
        try {
            SQLException sqlE = null;
            HTableInterface htable = this.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
            try {
                htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                        HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
                    @Override
                    public Void call(MetaDataProtocol instance) throws IOException {
                      instance.clearCache();
                      return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    }


    public static void clearMetaDataCache(Connection conn) throws Throwable {
        PhoenixConnection pconn = conn.unwrap(PhoenixConnection.class);
        HTableInterface htable = pconn.getQueryServices().getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
        htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
            @Override
            public Void call(MetaDataProtocol instance) throws IOException {
              instance.clearCache();
              return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    protected void clearCache() throws SQLException {
        try {
            SQLException sqlE = null;
            HTableInterface htable = this.getTable(PhoenixDatabaseMetaData.TYPE_TABLE_NAME_BYTES);
            try {
                htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                        HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
                    @Override
                    public Void call(MetaDataProtocol instance) throws IOException {
                      instance.clearCache();
                      return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    }


    public static void clearMetaDataCache(Connection conn) throws Throwable {
        PhoenixConnection pconn = conn.unwrap(PhoenixConnection.class);
        HTableInterface htable = pconn.getQueryServices().getTable(PhoenixDatabaseMetaData.TYPE_TABLE_NAME_BYTES);
        htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
            @Override
            public Void call(MetaDataProtocol instance) throws IOException {
              instance.clearCache();
              return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    }


    public static void clearMetaDataCache(Connection conn) throws Throwable {
        PhoenixConnection pconn = conn.unwrap(PhoenixConnection.class);
        HTableInterface htable = pconn.getQueryServices().getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
        htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
            @Override
            public Void call(MetaDataProtocol instance) throws IOException {
              instance.clearCache();
              return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    protected void clearCache() throws SQLException {
        try {
            SQLException sqlE = null;
            HTableInterface htable = this.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
            try {
                htable.coprocessorExec(MetaDataProtocol.class, HConstants.EMPTY_START_ROW,
                        HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataProtocol, Void>() {
                    @Override
                    public Void call(MetaDataProtocol instance) throws IOException {
                      instance.clearCache();
                      return null;

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Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorExec()

    @Override
    public <T extends CoprocessorProtocol, R> Map<byte[], R> coprocessorExec(Class<T> protocol,
            byte[] startKey, byte[] endKey, Batch.Call<T,R> callable) throws IOException, Throwable {
        HTableInterface table = pool.getTable(tableNameString);
        try {
            return table.coprocessorExec(protocol, startKey, endKey, callable);
        } finally {
            table.close();
        }
    }

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