org.apache.samza.zk.ZkJobCoordinator.doOnProcessorChange()方法的使用及代码示例

x33g5p2x  于2022-02-05 转载在 其他  
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本文整理了Java中org.apache.samza.zk.ZkJobCoordinator.doOnProcessorChange()方法的一些代码示例，展示了ZkJobCoordinator.doOnProcessorChange()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZkJobCoordinator.doOnProcessorChange()方法的具体详情如下：
包路径：org.apache.samza.zk.ZkJobCoordinator
类名称：ZkJobCoordinator
方法名：doOnProcessorChange

ZkJobCoordinator.doOnProcessorChange介绍

暂无

代码示例

代码示例来源：origin: org.apache.samza/samza-core_2.11

public void onProcessorChange(List<String> processors) {
 if (leaderElector.amILeader()) {
  LOG.info("ZkJobCoordinator::onProcessorChange - list of processors changed. List size=" + processors.size());
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> doOnProcessorChange(processors));
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.12

public void onProcessorChange(List<String> processors) {
 if (leaderElector.amILeader()) {
  LOG.info("ZkJobCoordinator::onProcessorChange - list of processors changed. List size=" + processors.size());
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> doOnProcessorChange(processors));
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.10

public void onProcessorChange(List<String> processors) {
 if (leaderElector.amILeader()) {
  LOG.info("ZkJobCoordinator::onProcessorChange - list of processors changed. List size=" + processors.size());
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> doOnProcessorChange(processors));
 }
}

代码示例来源：origin: org.apache.samza/samza-core

public void onProcessorChange(List<String> processors) {
 if (leaderElector.amILeader()) {
  LOG.info("ZkJobCoordinator::onProcessorChange - list of processors changed. List size=" + processors.size());
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> doOnProcessorChange(processors));
 }
}

代码示例来源：origin: org.apache.samza/samza-core

@Override
 public void onBecomingLeader() {
  LOG.info("ZkJobCoordinator::onBecomeLeader - I became the leader");
  metrics.isLeader.set(true);
  zkUtils.subscribeToProcessorChange(new ProcessorChangeHandler(zkUtils));
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
    // actual actions to do are the same as onProcessorChange
    doOnProcessorChange(new ArrayList<>());
   });
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.12

@Override
 public void onBecomingLeader() {
  LOG.info("ZkJobCoordinator::onBecomeLeader - I became the leader");
  metrics.isLeader.set(true);
  zkUtils.subscribeToProcessorChange(new ProcessorChangeHandler(zkUtils));
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
    // actual actions to do are the same as onProcessorChange
    doOnProcessorChange(new ArrayList<>());
   });
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.11

@Override
 public void onBecomingLeader() {
  LOG.info("ZkJobCoordinator::onBecomeLeader - I became the leader");
  metrics.isLeader.set(true);
  zkUtils.subscribeToProcessorChange(new ProcessorChangeHandler(zkUtils));
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
    // actual actions to do are the same as onProcessorChange
    doOnProcessorChange(new ArrayList<>());
   });
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.10

@Override
 public void onBecomingLeader() {
  LOG.info("ZkJobCoordinator::onBecomeLeader - I became the leader");
  metrics.isLeader.set(true);
  zkUtils.subscribeToProcessorChange(new ProcessorChangeHandler(zkUtils));
  debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
    // actual actions to do are the same as onProcessorChange
    doOnProcessorChange(new ArrayList<>());
   });
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.11

public void onBarrierStateChanged(final String version, ZkBarrierForVersionUpgrade.State state) {
 LOG.info("JobModel version " + version + " obtained consensus successfully!");
 metrics.barrierStateChange.inc();
 metrics.singleBarrierRebalancingTime.update(System.nanoTime() - startTime);
 if (ZkBarrierForVersionUpgrade.State.DONE.equals(state)) {
  debounceTimer.scheduleAfterDebounceTime(barrierAction, 0, () -> {
    LOG.info("pid=" + processorId + "new version " + version + " of the job model got confirmed");
    // read the new Model
    JobModel jobModel = getJobModel();
    // start the container with the new model
    if (coordinatorListener != null) {
     coordinatorListener.onNewJobModel(processorId, jobModel);
    }
   });
 } else {
  if (ZkBarrierForVersionUpgrade.State.TIMED_OUT.equals(state)) {
   // no-op for non-leaders
   // for leader: make sure we do not stop - so generate a new job model
   LOG.warn("Barrier for version " + version + " timed out.");
   if (leaderElector.amILeader()) {
    LOG.info("Leader will schedule a new job model generation");
    debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
      // actual actions to do are the same as onProcessorChange
      doOnProcessorChange(new ArrayList<>());
     });
   }
  }
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.10

public void onBarrierStateChanged(final String version, ZkBarrierForVersionUpgrade.State state) {
 LOG.info("JobModel version " + version + " obtained consensus successfully!");
 metrics.barrierStateChange.inc();
 metrics.singleBarrierRebalancingTime.update(System.nanoTime() - startTime);
 if (ZkBarrierForVersionUpgrade.State.DONE.equals(state)) {
  debounceTimer.scheduleAfterDebounceTime(barrierAction, 0, () -> {
    LOG.info("pid=" + processorId + "new version " + version + " of the job model got confirmed");
    // read the new Model
    JobModel jobModel = getJobModel();
    // start the container with the new model
    if (coordinatorListener != null) {
     coordinatorListener.onNewJobModel(processorId, jobModel);
    }
   });
 } else {
  if (ZkBarrierForVersionUpgrade.State.TIMED_OUT.equals(state)) {
   // no-op for non-leaders
   // for leader: make sure we do not stop - so generate a new job model
   LOG.warn("Barrier for version " + version + " timed out.");
   if (leaderElector.amILeader()) {
    LOG.info("Leader will schedule a new job model generation");
    debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
      // actual actions to do are the same as onProcessorChange
      doOnProcessorChange(new ArrayList<>());
     });
   }
  }
 }
}

代码示例来源：origin: org.apache.samza/samza-core

public void onBarrierStateChanged(final String version, ZkBarrierForVersionUpgrade.State state) {
 LOG.info("JobModel version " + version + " obtained consensus successfully!");
 metrics.barrierStateChange.inc();
 metrics.singleBarrierRebalancingTime.update(System.nanoTime() - startTime);
 if (ZkBarrierForVersionUpgrade.State.DONE.equals(state)) {
  debounceTimer.scheduleAfterDebounceTime(barrierAction, 0, () -> {
    LOG.info("pid=" + processorId + "new version " + version + " of the job model got confirmed");
    // read the new Model
    JobModel jobModel = getJobModel();
    // start the container with the new model
    if (coordinatorListener != null) {
     coordinatorListener.onNewJobModel(processorId, jobModel);
    }
   });
 } else {
  if (ZkBarrierForVersionUpgrade.State.TIMED_OUT.equals(state)) {
   // no-op for non-leaders
   // for leader: make sure we do not stop - so generate a new job model
   LOG.warn("Barrier for version " + version + " timed out.");
   if (leaderElector.amILeader()) {
    LOG.info("Leader will schedule a new job model generation");
    debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
      // actual actions to do are the same as onProcessorChange
      doOnProcessorChange(new ArrayList<>());
     });
   }
  }
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.12

public void onBarrierStateChanged(final String version, ZkBarrierForVersionUpgrade.State state) {
 LOG.info("JobModel version " + version + " obtained consensus successfully!");
 metrics.barrierStateChange.inc();
 metrics.singleBarrierRebalancingTime.update(System.nanoTime() - startTime);
 if (ZkBarrierForVersionUpgrade.State.DONE.equals(state)) {
  debounceTimer.scheduleAfterDebounceTime(barrierAction, 0, () -> {
    LOG.info("pid=" + processorId + "new version " + version + " of the job model got confirmed");
    // read the new Model
    JobModel jobModel = getJobModel();
    // start the container with the new model
    if (coordinatorListener != null) {
     coordinatorListener.onNewJobModel(processorId, jobModel);
    }
   });
 } else {
  if (ZkBarrierForVersionUpgrade.State.TIMED_OUT.equals(state)) {
   // no-op for non-leaders
   // for leader: make sure we do not stop - so generate a new job model
   LOG.warn("Barrier for version " + version + " timed out.");
   if (leaderElector.amILeader()) {
    LOG.info("Leader will schedule a new job model generation");
    debounceTimer.scheduleAfterDebounceTime(ON_PROCESSOR_CHANGE, debounceTimeMs, () -> {
      // actual actions to do are the same as onProcessorChange
      doOnProcessorChange(new ArrayList<>());
     });
   }
  }
 }
}

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