Package io.druid.server.coordinator

Examples of io.druid.server.coordinator.CoordinatorStats

65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
  @Override
  public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
  {
    DruidCluster cluster = params.getDruidCluster();
    CoordinatorStats stats = params.getCoordinatorStats();
    ServiceEmitter emitter = params.getEmitter();

    Map<String, AtomicLong> assigned = stats.getPerTierStats().get("assignedCount");
    if (assigned != null) {
      for (Map.Entry<String, AtomicLong> entry : assigned.entrySet()) {
        log.info(
            "[%s] : Assigned %s segments among %,d servers",
            entry.getKey(), entry.getValue().get(), cluster.get(entry.getKey()).size()
        );
      }
    }

    Map<String, AtomicLong> dropped = stats.getPerTierStats().get("droppedCount");
    if (dropped != null) {
      for (Map.Entry<String, AtomicLong> entry : dropped.entrySet()) {
        log.info(
            "[%s] : Dropped %s segments among %,d servers",
            entry.getKey(), entry.getValue().get(), cluster.get(entry.getKey()).size()
        );
      }
    }

    emitTieredStats(
        emitter, "coordinator/%s/cost/raw",
        stats.getPerTierStats().get("initialCost")
    );

    emitTieredStats(
        emitter, "coordinator/%s/cost/normalization",
        stats.getPerTierStats().get("normalization")
    );

    emitTieredStats(
        emitter, "coordinator/%s/moved/count",
        stats.getPerTierStats().get("movedCount")
    );

    emitTieredStats(
        emitter, "coordinator/%s/deleted/count",
        stats.getPerTierStats().get("deletedCount")
    );

    Map<String, AtomicLong> normalized = stats.getPerTierStats().get("normalizedInitialCostTimesOneThousand");
    if (normalized != null) {
      emitTieredStats(
          emitter, "coordinator/%s/cost/normalized",
          Maps.transformEntries(
              normalized,
              new Maps.EntryTransformer<String, AtomicLong, Number>()
              {
                @Override
                public Number transformEntry(String key, AtomicLong value)
                {
                  return value.doubleValue() / 1000d;
                }
              }
          )
      );
    }

    Map<String, AtomicLong> unneeded = stats.getPerTierStats().get("unneededCount");
    if (unneeded != null) {
      for (Map.Entry<String, AtomicLong> entry : unneeded.entrySet()) {
        log.info(
            "[%s] : Removed %s unneeded segments among %,d servers",
            entry.getKey(), entry.getValue().get(), cluster.get(entry.getKey()).size()
        );
      }
    }

    emitter.emit(
        new ServiceMetricEvent.Builder().build(
            "coordinator/overShadowed/count", stats.getGlobalStats().get("overShadowedCount")
        )
    );

    Map<String, AtomicLong> moved = stats.getPerTierStats().get("movedCount");
    if (moved != null) {
      for (Map.Entry<String, AtomicLong> entry : moved.entrySet()) {
        log.info(
            "[%s] : Moved %,d segment(s)",
            entry.getKey(), entry.getValue().get()
View Full Code Here
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
  @Override
  public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
  {
    DatasourceWhitelist whitelist = whiteListRef.get();

    CoordinatorStats stats = new CoordinatorStats();
    Map<String, VersionedIntervalTimeline<String, DataSegment>> dataSources = Maps.newHashMap();

    // Find serviced segments by using a timeline
    for (DataSegment dataSegment : params.getAvailableSegments()) {
      if (whitelist == null || whitelist.contains(dataSegment.getDataSource())) {
        VersionedIntervalTimeline<String, DataSegment> timeline = dataSources.get(dataSegment.getDataSource());
        if (timeline == null) {
          timeline = new VersionedIntervalTimeline<String, DataSegment>(Ordering.<String>natural());
          dataSources.put(dataSegment.getDataSource(), timeline);
        }
        timeline.add(
            dataSegment.getInterval(),
            dataSegment.getVersion(),
            dataSegment.getShardSpec().createChunk(dataSegment)
        );
      }
    }

    // Find segments to merge
    for (final Map.Entry<String, VersionedIntervalTimeline<String, DataSegment>> entry : dataSources.entrySet()) {
      // Get serviced segments from the timeline
      VersionedIntervalTimeline<String, DataSegment> timeline = entry.getValue();
      List<TimelineObjectHolder<String, DataSegment>> timelineObjects =
          timeline.lookup(new Interval(new DateTime(0), new DateTime("3000-01-01")));

      // Accumulate timelineObjects greedily until we reach our limits, then backtrack to the maximum complete set
      SegmentsToMerge segmentsToMerge = new SegmentsToMerge();

      for (int i = 0; i < timelineObjects.size(); i++) {
        if (!segmentsToMerge.add(timelineObjects.get(i))
            || segmentsToMerge.getByteCount() > params.getCoordinatorDynamicConfig().getMergeBytesLimit()
            || segmentsToMerge.getSegmentCount() >= params.getCoordinatorDynamicConfig().getMergeSegmentsLimit()) {
          i -= segmentsToMerge.backtrack(params.getCoordinatorDynamicConfig().getMergeBytesLimit());

          if (segmentsToMerge.getSegmentCount() > 1) {
            stats.addToGlobalStat("mergedCount", mergeSegments(segmentsToMerge, entry.getKey()));
          }

          if (segmentsToMerge.getSegmentCount() == 0) {
            // Backtracked all the way to zero. Increment by one so we continue to make progress.
            i++;
          }

          segmentsToMerge = new SegmentsToMerge();
        }
      }

      // Finish any timelineObjects to merge that may have not hit threshold
      segmentsToMerge.backtrack(params.getCoordinatorDynamicConfig().getMergeBytesLimit());
      if (segmentsToMerge.getSegmentCount() > 1) {
        stats.addToGlobalStat("mergedCount", mergeSegments(segmentsToMerge, entry.getKey()));
      }
    }

    return params.buildFromExisting()
                 .withCoordinatorStats(stats)
View Full Code Here
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
  }

  @Override
  public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
  {
    CoordinatorStats stats = new CoordinatorStats();
    Set<DataSegment> availableSegments = params.getAvailableSegments();
    DruidCluster cluster = params.getDruidCluster();

    // Drop segments that no longer exist in the available segments configuration, if it has been populated. (It might
    // not have been loaded yet since it's filled asynchronously. But it's also filled atomically, so if there are any
    // segments at all, we should have all of them.)
    if (!availableSegments.isEmpty()) {
      for (MinMaxPriorityQueue<ServerHolder> serverHolders : cluster.getSortedServersByTier()) {
        for (ServerHolder serverHolder : serverHolders) {
          ImmutableDruidServer server = serverHolder.getServer();

          for (ImmutableDruidDataSource dataSource : server.getDataSources()) {
            for (DataSegment segment : dataSource.getSegments()) {
              if (!availableSegments.contains(segment)) {
                LoadQueuePeon queuePeon = params.getLoadManagementPeons().get(server.getName());

                if (!queuePeon.getSegmentsToDrop().contains(segment)) {
                  queuePeon.dropSegment(
                      segment, new LoadPeonCallback()
                      {
                        @Override
                        public void execute()
                        {
                        }
                      }
                  );
                  stats.addToTieredStat("unneededCount", server.getTier(), 1);
                }
              }
            }
          }
        }
View Full Code Here
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
  }

  @Override
  public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
  {
    CoordinatorStats stats = new CoordinatorStats();

    // Delete segments that are old
    // Unservice old partitions if we've had enough time to make sure we aren't flapping with old data
    if (params.hasDeletionWaitTimeElapsed()) {
      DruidCluster cluster = params.getDruidCluster();
      Map<String, VersionedIntervalTimeline<String, DataSegment>> timelines = Maps.newHashMap();

      for (MinMaxPriorityQueue<ServerHolder> serverHolders : cluster.getSortedServersByTier()) {
        for (ServerHolder serverHolder : serverHolders) {
          ImmutableDruidServer server = serverHolder.getServer();

          for (ImmutableDruidDataSource dataSource : server.getDataSources()) {
            VersionedIntervalTimeline<String, DataSegment> timeline = timelines.get(dataSource.getName());
            if (timeline == null) {
              timeline = new VersionedIntervalTimeline<>(Comparators.comparable());
              timelines.put(dataSource.getName(), timeline);
            }

            for (DataSegment segment : dataSource.getSegments()) {
              timeline.add(
                  segment.getInterval(), segment.getVersion(), segment.getShardSpec().createChunk(segment)
              );
            }
          }
        }
      }

      for (VersionedIntervalTimeline<String, DataSegment> timeline : timelines.values()) {
        for (TimelineObjectHolder<String, DataSegment> holder : timeline.findOvershadowed()) {
          for (DataSegment dataSegment : holder.getObject().payloads()) {
            coordinator.removeSegment(dataSegment);
            stats.addToGlobalStat("overShadowedCount", 1);
          }
        }
      }
    }
View Full Code Here
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
    replicatorThrottler.updateParams(
        coordinator.getDynamicConfigs().getReplicationThrottleLimit(),
        coordinator.getDynamicConfigs().getReplicantLifetime()
    );

    CoordinatorStats stats = new CoordinatorStats();
    DruidCluster cluster = params.getDruidCluster();

    if (cluster.isEmpty()) {
      log.warn("Uh... I have no servers. Not assigning anything...");
      return params;
    }

    for (String tier : cluster.getTierNames()) {
      replicatorThrottler.updateReplicationState(tier);
      replicatorThrottler.updateTerminationState(tier);
    }

    DruidCoordinatorRuntimeParams paramsWithReplicationManager = params.buildFromExisting()
                                                                       .withReplicationManager(replicatorThrottler)
                                                                       .build();

    // Run through all matched rules for available segments
    DateTime now = new DateTime();
    MetadataRuleManager databaseRuleManager = paramsWithReplicationManager.getDatabaseRuleManager();
    for (DataSegment segment : paramsWithReplicationManager.getAvailableSegments()) {
      List<Rule> rules = databaseRuleManager.getRulesWithDefault(segment.getDataSource());
      boolean foundMatchingRule = false;
      for (Rule rule : rules) {
        if (rule.appliesTo(segment, now)) {
          stats.accumulate(rule.run(coordinator, paramsWithReplicationManager, segment));
          foundMatchingRule = true;
          break;
        }
      }
View Full Code Here
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
                )
            )
        )
    );

    CoordinatorStats stats = rule.run(
        null,
        DruidCoordinatorRuntimeParams.newBuilder()
                                     .withDruidCluster(druidCluster)
                                     .withSegmentReplicantLookup(SegmentReplicantLookup.make(new DruidCluster()))
                                     .withReplicationManager(throttler)
                                     .withAvailableSegments(Arrays.asList(segment)).build(),
        segment
    );

    Assert.assertTrue(stats.getPerTierStats().get("assignedCount").get("hot").get() == 1);
    Assert.assertTrue(stats.getPerTierStats().get("assignedCount").get(DruidServer.DEFAULT_TIER).get() == 2);
  }
View Full Code Here
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
            )
        )
    );


    CoordinatorStats stats = rule.run(
        null,
        DruidCoordinatorRuntimeParams.newBuilder()
                                     .withDruidCluster(druidCluster)
                                     .withSegmentReplicantLookup(SegmentReplicantLookup.make(druidCluster))
                                     .withReplicationManager(throttler)
                                     .withAvailableSegments(Arrays.asList(segment)).build(),
        segment
    );

    Assert.assertTrue(stats.getPerTierStats().get("droppedCount").get("hot").get() == 1);
    Assert.assertTrue(stats.getPerTierStats().get("droppedCount").get(DruidServer.DEFAULT_TIER).get() == 1);
  }
View Full Code Here
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
  }

  @Override
  public DruidCoordinatorRuntimeParams run(DruidCoordinatorRuntimeParams params)
  {
    final CoordinatorStats stats = new CoordinatorStats();
    final DateTime referenceTimestamp = params.getBalancerReferenceTimestamp();
    final BalancerStrategy strategy = params.getBalancerStrategyFactory().createBalancerStrategy(referenceTimestamp);
    final int maxSegmentsToMove = params.getCoordinatorDynamicConfig().getMaxSegmentsToMove();

    for (Map.Entry<String, MinMaxPriorityQueue<ServerHolder>> entry :
        params.getDruidCluster().getCluster().entrySet()) {
      String tier = entry.getKey();

      if (currentlyMovingSegments.get(tier) == null) {
        currentlyMovingSegments.put(tier, new ConcurrentHashMap<String, BalancerSegmentHolder>());
      }

      if (!currentlyMovingSegments.get(tier).isEmpty()) {
        reduceLifetimes(tier);
        log.info("[%s]: Still waiting on %,d segments to be moved", tier, currentlyMovingSegments.size());
        continue;
      }

      final List<ServerHolder> serverHolderList = Lists.newArrayList(entry.getValue());

      if (serverHolderList.size() <= 1) {
        log.info("[%s]: One or fewer servers found.  Cannot balance.", tier);
        continue;
      }

      int numSegments = 0;
      for (ServerHolder server : serverHolderList) {
        numSegments += server.getServer().getSegments().size();
      }

      if (numSegments == 0) {
        log.info("No segments found.  Cannot balance.");
        continue;
      }

      for (int iter = 0; iter < maxSegmentsToMove; iter++) {
        final BalancerSegmentHolder segmentToMove = strategy.pickSegmentToMove(serverHolderList);

        if (segmentToMove != null && params.getAvailableSegments().contains(segmentToMove.getSegment())) {
          final ServerHolder holder = strategy.findNewSegmentHomeBalancer(segmentToMove.getSegment(), serverHolderList);

          if (holder != null) {
            moveSegment(segmentToMove, holder.getServer(), params);
          }
        }
      }
      stats.addToTieredStat("movedCount", tier, currentlyMovingSegments.get(tier).size());
      if (params.getCoordinatorDynamicConfig().emitBalancingStats()) {
        strategy.emitStats(tier, stats, serverHolderList);

      }
      log.info(
View Full Code Here
30
31
32
33
34
35
36
37
38
39
public abstract class DropRule implements Rule
{
  @Override
  public CoordinatorStats run(DruidCoordinator coordinator, DruidCoordinatorRuntimeParams params, DataSegment segment)
  {
    CoordinatorStats stats = new CoordinatorStats();
    coordinator.removeSegment(segment);
    stats.addToGlobalStat("deletedCount", 1);
    return stats;
  }
View Full Code Here
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
  private static final String droppedCount = "droppedCount";

  @Override
  public CoordinatorStats run(DruidCoordinator coordinator, DruidCoordinatorRuntimeParams params, DataSegment segment)
  {
    final CoordinatorStats stats = new CoordinatorStats();
    final Set<DataSegment> availableSegments = params.getAvailableSegments();

    final Map<String, Integer> loadStatus = Maps.newHashMap();

    int totalReplicantsInCluster = params.getSegmentReplicantLookup().getTotalReplicants(segment.getIdentifier());
    for (Map.Entry<String, Integer> entry : getTieredReplicants().entrySet()) {
      final String tier = entry.getKey();
      final int expectedReplicantsInTier = entry.getValue();
      final int totalReplicantsInTier = params.getSegmentReplicantLookup()
                                              .getTotalReplicants(segment.getIdentifier(), tier);
      final int loadedReplicantsInTier = params.getSegmentReplicantLookup()
                                         .getLoadedReplicants(segment.getIdentifier(), tier);

      final MinMaxPriorityQueue<ServerHolder> serverQueue = params.getDruidCluster().getServersByTier(tier);
      if (serverQueue == null) {
        log.makeAlert("Tier[%s] has no servers! Check your cluster configuration!", tier).emit();
        return stats;
      }

      final List<ServerHolder> serverHolderList = Lists.newArrayList(serverQueue);
      final DateTime referenceTimestamp = params.getBalancerReferenceTimestamp();
      final BalancerStrategy strategy = params.getBalancerStrategyFactory().createBalancerStrategy(referenceTimestamp);
      if (availableSegments.contains(segment)) {
        CoordinatorStats assignStats = assign(
            params.getReplicationManager(),
            tier,
            totalReplicantsInCluster,
            expectedReplicantsInTier,
            totalReplicantsInTier,
            strategy,
            serverHolderList,
            segment
        );
        stats.accumulate(assignStats);
        totalReplicantsInCluster += assignStats.getPerTierStats().get(assignedCount).get(tier).get();
      }

      loadStatus.put(tier, expectedReplicantsInTier - loadedReplicantsInTier);
    }
    // Remove over-replication
View Full Code Here
TOP

Related Classes of io.druid.server.coordinator.CoordinatorStats

  • io.druid.server.coordinator.helper.DruidCoordinatorBalancer
  • io.druid.server.coordinator.helper.DruidCoordinatorCleanupOvershadowed
  • io.druid.server.coordinator.helper.DruidCoordinatorCleanupUnneeded
  • io.druid.server.coordinator.helper.DruidCoordinatorLogger
  • io.druid.server.coordinator.helper.DruidCoordinatorRuleRunner
  • io.druid.server.coordinator.helper.DruidCoordinatorSegmentMerger
  • io.druid.server.coordinator.rules.DropRule
  • io.druid.server.coordinator.rules.LoadRule
  • io.druid.server.coordinator.rules.LoadRuleTest
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.