Examples of org.apache.zookeeper.server.quorum.flexible.QuorumHierarchical

Package org.apache.zookeeper.server.quorum.flexible

Examples of org.apache.zookeeper.server.quorum.flexible.QuorumHierarchical

org.apache.zookeeper.server.quorum.flexible.QuorumHierarchical
This class implements a validator for hierarchical quorums. With this construction, zookeeper servers are split into disjoint groups, and each server has a weight. We obtain a quorum if we get more than half of the total weight of a group for a majority of groups. The configuration of quorums uses two parameters: group and weight. Groups are sets of ZooKeeper servers, and we set a group by passing a colon-separated list of server ids. It is also necessary to assign weights to server. Here is an example of a configuration that creates three groups and assigns a weight of 1 to each server: group.1=1:2:3 group.2=4:5:6 group.3=7:8:9 weight.1=1 weight.2=1 weight.3=1 weight.4=1 weight.5=1 weight.6=1 weight.7=1 weight.8=1 weight.9=1 Note that it is still necessary to define peers using the server keyword.

              }
              
              /*
               * Set the quorumVerifier to be QuorumHierarchical 
               */
                quorumVerifier = new QuorumHierarchical(numGroups, 
                        serverWeight, serverGroup);
            } else {
              /*
               * The default QuorumVerifier is QuorumMaj
               */

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    }
    
    
    private static QuorumVerifier createQuorumVerifier(Properties dynamicConfigProp, boolean isHierarchical) throws ConfigException{
       if(isHierarchical){
            return new QuorumHierarchical(dynamicConfigProp);
        } else {
           /*
             * The default QuorumVerifier is QuorumMaj
             */        
            //LOG.info("Defaulting to majority quorums");

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            tmpdir[i] = ClientBase.createTmpDir();
            port[i] = baseport+i;
        }


        for(int i = 0; i < le.length; i++) {
            QuorumHierarchical hq = new QuorumHierarchical(qp);
            QuorumPeer peer = new QuorumPeer(peers, tmpdir[i], tmpdir[i], port[i], 3, i, 2, 2, 2, hq);
            peer.startLeaderElection();
            LEThread thread = new LEThread(peer, i);
            thread.start();
            threads.add(thread);

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            tmpdir[i] = ClientBase.createTmpDir();
            port[i] = PortAssignment.unique();
        }


        for(int i = 0; i < le.length; i++) {
            QuorumHierarchical hq = new QuorumHierarchical(qp);
            QuorumPeer peer = new QuorumPeer(peers, tmpdir[i], tmpdir[i], port[i], 3, i, 2, 2, 2, hq);
            peer.startLeaderElection();
            LEThread thread = new LEThread(peer, i);
            thread.start();
            threads.add(thread);

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            tmpdir[i] = ClientBase.createTmpDir();
            port[i] = PortAssignment.unique();
        }


        for(int i = 0; i < le.length; i++) {
            QuorumHierarchical hq = new QuorumHierarchical(qp);
            QuorumPeer peer = new QuorumPeer(peers, tmpdir[i], tmpdir[i], port[i], 3, i, 1000, 2, 2, hq);
            peer.startLeaderElection();
            LEThread thread = new LEThread(peer, i);
            thread.start();
            threads.add(thread);

View Full Code Here

                }


                /*
                 * Set the quorumVerifier to be QuorumHierarchical
                 */
                quorumVerifier = new QuorumHierarchical(numGroups,
                        serverWeight, serverGroup);
            } else {
                /*
                 * The default QuorumVerifier is QuorumMaj
                 */

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                new InetSocketAddress("127.0.0.1", leport5 + 1000),
                withObservers ? QuorumPeer.LearnerType.OBSERVER
                        : QuorumPeer.LearnerType.PARTICIPANT));


        LOG.info("creating QuorumPeer 1 port " + port1);
        QuorumHierarchical hq1 = new QuorumHierarchical(qp); 
        s1 = new QuorumPeer(peers, s1dir, s1dir, port1, 3, 1, tickTime, initLimit, syncLimit, hq1);
        assertEquals(port1, s1.getClientPort());
        
        LOG.info("creating QuorumPeer 2 port " + port2);
        QuorumHierarchical hq2 = new QuorumHierarchical(qp); 
        s2 = new QuorumPeer(peers, s2dir, s2dir, port2, 3, 2, tickTime, initLimit, syncLimit, hq2);
        assertEquals(port2, s2.getClientPort());
        
        LOG.info("creating QuorumPeer 3 port " + port3);
        QuorumHierarchical hq3 = new QuorumHierarchical(qp); 
        s3 = new QuorumPeer(peers, s3dir, s3dir, port3, 3, 3, tickTime, initLimit, syncLimit, hq3);
        assertEquals(port3, s3.getClientPort());
        
        LOG.info("creating QuorumPeer 4 port " + port4);
        QuorumHierarchical hq4 = new QuorumHierarchical(qp); 
        s4 = new QuorumPeer(peers, s4dir, s4dir, port4, 3, 4, tickTime, initLimit, syncLimit, hq4);
        if (withObservers) {
            s4.setLearnerType(QuorumPeer.LearnerType.OBSERVER);
        }
        assertEquals(port4, s4.getClientPort());
                       
        LOG.info("creating QuorumPeer 5 port " + port5);
        QuorumHierarchical hq5 = new QuorumHierarchical(qp); 
        s5 = new QuorumPeer(peers, s5dir, s5dir, port5, 3, 5, tickTime, initLimit, syncLimit, hq5);
        if (withObservers) {
            s5.setLearnerType(QuorumPeer.LearnerType.OBSERVER);
        }
        assertEquals(port5, s5.getClientPort());

View Full Code Here

              }
              
              /*
               * Set the quorumVerifier to be QuorumHierarchical 
               */
                quorumVerifier = new QuorumHierarchical(numGroups, 
                        serverWeight, serverGroup);
            } else {
              /*
               * The default QuorumVerifier is QuorumMaj
               */

View Full Code Here

              }
              
              /*
               * Set the quorumVerifier to be QuorumHierarchical 
               */
                quorumVerifier = new QuorumHierarchical(numGroups, 
                        serverWeight, serverGroup);
            } else {
              /*
               * The default QuorumVerifier is QuorumMaj
               */

View Full Code Here

                }


                /*
                 * Set the quorumVerifier to be QuorumHierarchical
                 */
                quorumVerifier = new QuorumHierarchical(numGroups,
                        serverWeight, serverGroup);
            } else {
                /*
                 * The default QuorumVerifier is QuorumMaj
                 */

View Full Code Here

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Related Classes of org.apache.zookeeper.server.quorum.flexible.QuorumHierarchical

org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer

org.apache.zookeeper.server.quorum.QuorumPeerConfig

org.apache.zookeeper.test.FLEZeroWeightTest

org.apache.zookeeper.test.HierarchicalQuorumTest

java.io.StringWriter

java.io.File

java.io.FileInputStream

java.util.Properties

org.apache.zookeeper.server.quorum.QuorumPeerConfig.ConfigException

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