Package org.apache.hadoop.hbase

Examples of org.apache.hadoop.hbase.Coprocessor

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    RegionCoprocessorHost host = new RegionCoprocessorHost(r, null, conf);
    r.setCoprocessorHost(host);

    for (Class<?> implClass : implClasses) {
      host.load(implClass, Coprocessor.PRIORITY_USER, conf);
      Coprocessor c = host.findCoprocessor(implClass.getName());
      assertNotNull(c);
    }

    // Here we have to call pre and postOpen explicitly.
    host.preOpen();
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      put.add(A, A, iBytes);
      table.put(put);
    }

    HRegion firstRegion = cluster.getRegions(compactTable).get(0);
    Coprocessor cp = firstRegion.getCoprocessorHost().findCoprocessor(
        EvenOnlyCompactor.class.getName());
    assertNotNull("EvenOnlyCompactor coprocessor should be loaded", cp);
    EvenOnlyCompactor compactor = (EvenOnlyCompactor)cp;

    // force a compaction
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            continue;
          }
          RegionCoprocessorHost cph = t.getRegionServer().getOnlineRegion(r.getRegionName()).
              getCoprocessorHost();

          Coprocessor cp = cph.findCoprocessor(c.getName());
          assertNotNull(cp);
          for (int i = 0; i < methodName.length; ++i) {
            Method m = c.getMethod(methodName[i]);
            Object o = m.invoke(cp);
            assertTrue("Result of " + c.getName() + "." + methodName[i]
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      throw new IOException("Configured class " + implClass.getName() + " must implement "
          + Coprocessor.class.getName() + " interface ");
    }

    // create the instance
    Coprocessor impl;
    Object o = null;
    try {
      o = implClass.newInstance();
      impl = (Coprocessor)o;
    } catch (InstantiationException e) {
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      throw new IOException("Configured class " + implClass.getName() + " must implement "
          + Coprocessor.class.getName() + " interface ");
    }

    // create the instance
    Coprocessor impl;
    Object o = null;
    try {
      o = implClass.newInstance();
      impl = (Coprocessor)o;
    } catch (InstantiationException e) {
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   * @throws java.io.IOException Exception
   */
  public E loadInstance(Class<?> implClass, int priority, Configuration conf)
      throws IOException {
    // create the instance
    Coprocessor impl;
    Object o = null;
    try {
      o = implClass.newInstance();
      impl = (Coprocessor)o;
    } catch (InstantiationException e) {
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    put.add(A, A, A);
    int lockid = region.obtainRowLock(ROW);
    region.put(put, lockid);
    region.releaseRowLock(lockid);

    Coprocessor c = h.findCoprocessor(ObserverA.class.getName());
    long idA = ((ObserverA)c).id;
    c = h.findCoprocessor(ObserverB.class.getName());
    long idB = ((ObserverB)c).id;
    c = h.findCoprocessor(ObserverC.class.getName());
    long idC = ((ObserverC)c).id;
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    for (int i = 0; i < regions.length; i++) {
      regions[i] = reopenRegion(regions[i], CoprocessorImpl.class);
    }
    region.close();
    region.getLog().closeAndDelete();
    Coprocessor c = region.getCoprocessorHost().
      findCoprocessor(CoprocessorImpl.class.getName());

    // HBASE-4197
    Scan s = new Scan();
    RegionScanner scanner = regions[0].getCoprocessorHost().postScannerOpen(s, regions[0].getScanner(s));
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    RegionCoprocessorHost host = new RegionCoprocessorHost(r, null, conf);
    r.setCoprocessorHost(host);

    host.load(implClass, Coprocessor.PRIORITY_USER, conf);

    Coprocessor c = host.findCoprocessor(implClass.getName());
    assertNotNull(c);

    // Here we have to call pre and postOpen explicitly.
    host.preOpen();
    host.postOpen();
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  @Test
  public void testWALCoprocessorLoaded() throws Exception {
    // test to see whether the coprocessor is loaded or not.
    HLog log = new HLog(fs, dir, oldLogDir, conf);
    WALCoprocessorHost host = log.getCoprocessorHost();
    Coprocessor c = host.findCoprocessor(SampleRegionWALObserver.class.getName());
    assertNotNull(c);
  }
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Related Classes of org.apache.hadoop.hbase.Coprocessor

  • org.apache.hadoop.hbase.coprocessor.CoprocessorHost
  • org.apache.hadoop.hbase.coprocessor.TestClassLoading
  • org.apache.hadoop.hbase.coprocessor.TestCoprocessorInterface
  • org.apache.hadoop.hbase.coprocessor.TestRegionObserverInterface
  • org.apache.hadoop.hbase.coprocessor.TestRegionObserverStacking
  • org.apache.hadoop.hbase.coprocessor.TestRegionServerObserver
  • org.apache.hadoop.hbase.coprocessor.TestWALObserver
  • org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost
  • org.apache.hadoop.hbase.regionserver.wal.TestHLog
  • org.apache.hadoop.hbase.security.access.SecureTestUtil
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