Examples of Replica

com.sleepycat.je.rep.impl.node.Replica
The Replica class is the locus of the replay operations and replica transaction consistency tracking and management operations at a replica node. A single instance of this class is created when the replication node is created and exists for the lifetime of the replication node, although it is only really used when the node is operating as a Replica. Note that the Replica (like the FeederManager) does not have its own independent thread of control; it runs in the RepNode's thread.
com.volantis.mcs.layouts.Replica
org.apache.hadoop.hdfs.server.datanode.Replica
This represents block replicas which stored in DataNode.
org.robotninjas.barge.Replica

Examples of org.apache.hadoop.hdfs.server.datanode.Replica


    List<LocatedBlock> lb = cluster.getNameNode().getBlockLocations(
      filePath.toString(), FILE_SIZE - 1, FILE_SIZE).getLocatedBlocks();


    for (DataNode dn : cluster.getDataNodes()) {
      Replica r = DataNodeAdapter.fetchReplicaInfo(
        dn, lb.get(0).getBlock().getBlockId());


      assertTrue("Replica on DN " + dn + " shouldn't be null", r != null);
      assertEquals(
        "Should be RBW replica on " + dn + " after sequence of calls " +
        "append()/write()/hflush()",
        HdfsConstants.ReplicaState.RBW, r.getState());
    }
    ofs.close();
  }

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Examples of org.apache.hadoop.hdfs.server.datanode.Replica

    return volumeMap.get(bpid, blockId);
  }


  @Override 
  public synchronized String getReplicaString(String bpid, long blockId) {
    final Replica r = volumeMap.get(bpid, blockId);
    return r == null? "null": r.toString();
  }

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Examples of org.apache.hadoop.hdfs.server.datanode.Replica

  }


  @Override // FsDatasetSpi
  public synchronized long getReplicaVisibleLength(final ExtendedBlock block)
  throws IOException {
    final Replica replica = getReplicaInfo(block.getBlockPoolId(), 
        block.getBlockId());
    if (replica.getGenerationStamp() < block.getGenerationStamp()) {
      throw new IOException(
          "replica.getGenerationStamp() < block.getGenerationStamp(), block="
          + block + ", replica=" + replica);
    }
    return replica.getVisibleLength();
  }

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Examples of org.apache.hadoop.hdfs.server.datanode.Replica

    List<LocatedBlock> lb = cluster.getNameNodeRpc().getBlockLocations(
      filePath.toString(), FILE_SIZE - 1, FILE_SIZE).getLocatedBlocks();


    String bpid = cluster.getNamesystem().getBlockPoolId();
    for (DataNode dn : cluster.getDataNodes()) {
      Replica r = DataNodeTestUtils.fetchReplicaInfo(dn, bpid, lb.get(0)
          .getBlock().getBlockId());


      assertTrue("Replica on DN " + dn + " shouldn't be null", r != null);
      assertEquals("Should be RBW replica on " + dn
          + " after sequence of calls append()/write()/hflush()",
          HdfsServerConstants.ReplicaState.RBW, r.getState());
    }
    ofs.close();
  }

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Examples of org.apache.hadoop.hdfs.server.datanode.Replica

    List<LocatedBlock> lb = cluster.getNameNodeRpc().getBlockLocations(
      filePath.toString(), FILE_SIZE - 1, FILE_SIZE).getLocatedBlocks();


    String bpid = cluster.getNamesystem().getBlockPoolId();
    for (DataNode dn : cluster.getDataNodes()) {
      Replica r = DataNodeTestUtils.fetchReplicaInfo(dn, bpid, lb.get(0)
          .getBlock().getBlockId());


      assertTrue("Replica on DN " + dn + " shouldn't be null", r != null);
      assertEquals("Should be RBW replica on " + dn
          + " after sequence of calls append()/write()/hflush()",
          HdfsServerConstants.ReplicaState.RBW, r.getState());
    }
    ofs.close();
  }

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Examples of org.robotninjas.barge.Replica

          Term term = entry.getTerm();
          visitor.term(mark, term.getTerm());
        } else if (entry.hasVote()) {
          Vote vote = entry.getVote();
          String votedfor = vote.getVotedFor();
          Replica replica = votedfor == null
            ? null : config.getReplica(votedfor);
          visitor.vote(mark, Optional.fromNullable(replica));
        }


      }

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Examples of org.robotninjas.barge.Replica


    //  If votedFor is null or candidateId, and candidate's log is at 
    //  least as up-to-date as receiver’s log, grant vote (§5.2, §5.4)
      
    Optional<Replica> votedFor = log.votedFor();
    Replica candidate = log.getReplica(request.getCandidateId());


    if (votedFor.isPresent()) {
      if (!votedFor.get().equals(candidate)) {
        return false;
      }

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Examples of org.robotninjas.barge.Replica

          ctx.setState(this, FOLLOWER);
        }


      }


      Replica candidate = log.getReplica(request.getCandidateId());
      voteGranted = shouldVoteFor(log, request);


      if (voteGranted) {
        log.votedFor(Optional.of(candidate));
      }

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Examples of org.robotninjas.barge.Replica

      .setLastLogIndex(2)
      .setLastLogTerm(3)
      .setTerm(2)
      .build();


    Replica otherCandidate = config.getReplica("other");
    when(mockRaftLog.votedFor()).thenReturn(Optional.of(otherCandidate));
    boolean shouldVote = state.shouldVoteFor(mockRaftLog, requestVote);


    assertTrue(shouldVote);
  }

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Examples of org.robotninjas.barge.Replica

      .setLastLogIndex(2)
      .setLastLogTerm(1)
      .setTerm(2)
      .build();


    Replica otherCandidate = config.getReplica("other");
    when(mockRaftLog.votedFor()).thenReturn(Optional.of(otherCandidate));
    boolean shouldVote = state.shouldVoteFor(mockRaftLog, requestVote);


    assertFalse(shouldVote);
  }

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