本文整理汇总了Java中storm.kafka.trident.MaxMetric类的典型用法代码示例。如果您正苦于以下问题：Java MaxMetric类的具体用法？Java MaxMetric怎么用？Java MaxMetric使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
MaxMetric类属于storm.kafka.trident包，在下文中一共展示了MaxMetric类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: PartitionManager
import storm.kafka.trident.MaxMetric; //导入依赖的package包/类
public PartitionManager(DynamicPartitionConnections connections, String topologyInstanceId, ZkState state, Map stormConf, SpoutConfig spoutConfig, Partition id) {
_partition = id;
_connections = connections;
_spoutConfig = spoutConfig;
_topologyInstanceId = topologyInstanceId;
_consumer = connections.register(id.host, id.partition);
_state = state;
_stormConf = stormConf;
numberAcked = numberFailed = 0;
String jsonTopologyId = null;
Long jsonOffset = null;
String path = committedPath();
try {
Map<Object, Object> json = _state.readJSON(path);
LOG.info("Read partition information from: " + path + " --> " + json );
if (json != null) {
jsonTopologyId = (String) ((Map<Object, Object>) json.get("topology")).get("id");
jsonOffset = (Long) json.get("offset");
}
} catch (Throwable e) {
LOG.warn("Error reading and/or parsing at ZkNode: " + path, e);
}
Long currentOffset = KafkaUtils.getOffset(_consumer, spoutConfig.topic, id.partition, spoutConfig);
if (jsonTopologyId == null || jsonOffset == null) { // failed to parse JSON?
_committedTo = currentOffset;
LOG.info("No partition information found, using configuration to determine offset");
} else if (!topologyInstanceId.equals(jsonTopologyId) && spoutConfig.forceFromStart) {
_committedTo = KafkaUtils.getOffset(_consumer, spoutConfig.topic, id.partition, spoutConfig.startOffsetTime);
LOG.info("Topology change detected and reset from start forced, using configuration to determine offset");
} else {
_committedTo = jsonOffset;
LOG.info("Read last commit offset from zookeeper: " + _committedTo + "; old topology_id: " + jsonTopologyId + " - new topology_id: " + topologyInstanceId );
}
if (currentOffset - _committedTo > spoutConfig.maxOffsetBehind || _committedTo <= 0) {
LOG.info("Last commit offset from zookeeper: " + _committedTo);
_committedTo = currentOffset;
LOG.info("Commit offset " + _committedTo + " is more than " +
spoutConfig.maxOffsetBehind + " behind, resetting to startOffsetTime=" + spoutConfig.startOffsetTime);
}
LOG.info("Starting Kafka " + _consumer.host() + ":" + id.partition + " from offset " + _committedTo);
_emittedToOffset = _committedTo;
_fetchAPILatencyMax = new CombinedMetric(new MaxMetric());
_fetchAPILatencyMean = new ReducedMetric(new MeanReducer());
_fetchAPICallCount = new CountMetric();
_fetchAPIMessageCount = new CountMetric();
}
示例2: PartitionManager
import storm.kafka.trident.MaxMetric; //导入依赖的package包/类
public PartitionManager(DynamicPartitionConnections connections, String topologyInstanceId, ZkState state, Map stormConf, SpoutConfig spoutConfig, Partition id) {
_partition = id;
_connections = connections;
_spoutConfig = spoutConfig;
_topologyInstanceId = topologyInstanceId;
_consumer = connections.register(id.host, id.partition);
_state = state;
_stormConf = stormConf;
String jsonTopologyId = null;
Long jsonOffset = null;
String path = committedPath();
try {
Map<Object, Object> json = _state.readJSON(path);
LOG.info("Read partition information from: " + path + " --> " + json );
if (json != null) {
jsonTopologyId = (String) ((Map<Object, Object>) json.get("topology")).get("id");
jsonOffset = (Long) json.get("offset");
}
} catch (Throwable e) {
LOG.warn("Error reading and/or parsing at ZkNode: " + path, e);
}
if (jsonTopologyId == null || jsonOffset == null) { // failed to parse JSON?
_committedTo = KafkaUtils.getOffset(_consumer, spoutConfig.topic, id.partition, spoutConfig);
LOG.info("No partition information found, using configuration to determine offset");
} else if (!topologyInstanceId.equals(jsonTopologyId) && spoutConfig.forceFromStart) {
_committedTo = KafkaUtils.getOffset(_consumer, spoutConfig.topic, id.partition, spoutConfig.startOffsetTime);
LOG.info("Topology change detected and reset from start forced, using configuration to determine offset");
} else {
_committedTo = jsonOffset;
LOG.info("Read last commit offset from zookeeper: " + _committedTo + "; old topology_id: " + jsonTopologyId + " - new topology_id: " + topologyInstanceId );
}
LOG.info("Starting " + _partition + " from offset " + _committedTo);
_emittedToOffset = _committedTo;
_fetchAPILatencyMax = new CombinedMetric(new MaxMetric());
_fetchAPILatencyMean = new ReducedMetric(new MeanReducer());
_fetchAPICallCount = new CountMetric();
_fetchAPIMessageCount = new CountMetric();
}