org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore.checkpointIdToPath()方法的使用及代码示例-6ren

org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore.checkpointIdToPath()方法的使用及代码示例

转载作者：知者更新时间：2024-03-17 02:57:31

本文整理了Java中org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore.checkpointIdToPath()方法的一些代码示例，展示了ZooKeeperCompletedCheckpointStore.checkpointIdToPath()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。ZooKeeperCompletedCheckpointStore.checkpointIdToPath()方法的具体详情如下：
包路径：org.apache.flink.runtime.checkpoint.ZooKeeperCompletedCheckpointStore
类名称：ZooKeeperCompletedCheckpointStore
方法名：checkpointIdToPath

ZooKeeperCompletedCheckpointStore.checkpointIdToPath介绍

[英]Convert a checkpoint id into a ZooKeeper path.
[中]将检查点id转换为ZooKeeper路径。

代码示例

代码示例来源：origin: org.apache.flink/flink-runtime

/**
 * Tries to remove the checkpoint identified by the given checkpoint id.
 *
 * @param checkpointId identifying the checkpoint to remove
 * @return true if the checkpoint could be removed
 */
private boolean tryRemove(long checkpointId) throws Exception {
  return checkpointsInZooKeeper.releaseAndTryRemove(checkpointIdToPath(checkpointId));
}

代码示例来源：origin: org.apache.flink/flink-runtime_2.11

/**
 * Tries to remove the checkpoint identified by the given checkpoint id.
 *
 * @param checkpointId identifying the checkpoint to remove
 * @return true if the checkpoint could be removed
 */
private boolean tryRemove(long checkpointId) throws Exception {
  return checkpointsInZooKeeper.releaseAndTryRemove(checkpointIdToPath(checkpointId));
}

代码示例来源：origin: org.apache.flink/flink-runtime_2.10

/**
 * Removes a subsumed checkpoint from ZooKeeper and drops the state.
 */
private void removeSubsumed(
  final CompletedCheckpoint completedCheckpoint) throws Exception {
  if (completedCheckpoint == null) {
    return;
  }
  ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint> action =
    new ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint>() {
      @Override
      public void apply(@Nullable RetrievableStateHandle<CompletedCheckpoint> value) throws FlinkException {
        if (value != null) {
          try {
            completedCheckpoint.discardOnSubsume();
          } catch (Exception e) {
            throw new FlinkException("Could not discard the completed checkpoint on subsume.", e);
          }
        }
      }
    };
  checkpointsInZooKeeper.releaseAndTryRemove(
    checkpointIdToPath(completedCheckpoint.getCheckpointID()),
    action);
}

代码示例来源：origin: com.alibaba.blink/flink-runtime

/**
 * Removes a checkpoint from ZooKeeper because of Job shutdown and drops the state.
 */
private void removeShutdown(
    final CompletedCheckpoint completedCheckpoint,
    final JobStatus jobStatus) throws Exception {
  if (completedCheckpoint == null) {
    return;
  }
  ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint> removeAction = new ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint>() {
    @Override
    public void apply(@Nullable RetrievableStateHandle<CompletedCheckpoint> value) throws FlinkException {
      try {
        completedCheckpoint.discardOnShutdown(jobStatus);
      } catch (Exception e) {
        throw new FlinkException("Could not discard the completed checkpoint on subsume.", e);
      }
    }
  };
  checkpointsInZooKeeper.releaseAndTryRemove(
    checkpointIdToPath(completedCheckpoint.getCheckpointID()),
    removeAction);
}

代码示例来源：origin: org.apache.flink/flink-runtime_2.10

/**
 * Removes a checkpoint from ZooKeeper because of Job shutdown and drops the state.
 */
private void removeShutdown(
    final CompletedCheckpoint completedCheckpoint,
    final JobStatus jobStatus) throws Exception {
  if (completedCheckpoint == null) {
    return;
  }
  ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint> removeAction = new ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint>() {
    @Override
    public void apply(@Nullable RetrievableStateHandle<CompletedCheckpoint> value) throws FlinkException {
      try {
        completedCheckpoint.discardOnShutdown(jobStatus);
      } catch (Exception e) {
        throw new FlinkException("Could not discard the completed checkpoint on subsume.", e);
      }
    }
  };
  checkpointsInZooKeeper.releaseAndTryRemove(
    checkpointIdToPath(completedCheckpoint.getCheckpointID()),
    removeAction);
}

代码示例来源：origin: org.apache.flink/flink-runtime_2.10

/**
 * Synchronously writes the new checkpoints to ZooKeeper and asynchronously removes older ones.
 *
 * @param checkpoint Completed checkpoint to add.
 */
@Override
public void addCheckpoint(final CompletedCheckpoint checkpoint) throws Exception {
  checkNotNull(checkpoint, "Checkpoint");
  final String path = checkpointIdToPath(checkpoint.getCheckpointID());
  // Now add the new one. If it fails, we don't want to loose existing data.
  checkpointsInZooKeeper.addAndLock(path, checkpoint);
  completedCheckpoints.addLast(checkpoint);
  // Everything worked, let's remove a previous checkpoint if necessary.
  while (completedCheckpoints.size() > maxNumberOfCheckpointsToRetain) {
    try {
      removeSubsumed(completedCheckpoints.removeFirst());
    } catch (Exception e) {
      LOG.warn("Failed to subsume the old checkpoint", e);
    }
  }
  LOG.debug("Added {} to {}.", checkpoint, path);
}

代码示例来源：origin: com.alibaba.blink/flink-runtime

/**
 * Removes a subsumed checkpoint from ZooKeeper and drops the state.
 */
private void removeSubsumed(
  final CompletedCheckpoint completedCheckpoint) throws Exception {
  if (completedCheckpoint == null) {
    return;
  }
  ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint> action =
    new ZooKeeperStateHandleStore.RemoveCallback<CompletedCheckpoint>() {
      @Override
      public void apply(@Nullable RetrievableStateHandle<CompletedCheckpoint> value) throws FlinkException {
        if (value != null) {
          try {
            completedCheckpoint.discardOnSubsume();
          } catch (Exception e) {
            throw new FlinkException("Could not discard the completed checkpoint on subsume.", e);
          }
        }
      }
    };
  checkpointsInZooKeeper.releaseAndTryRemove(
    checkpointIdToPath(completedCheckpoint.getCheckpointID()),
    action);
}

代码示例来源：origin: org.apache.flink/flink-runtime_2.11

/**
 * Synchronously writes the new checkpoints to ZooKeeper and asynchronously removes older ones.
 *
 * @param checkpoint Completed checkpoint to add.
 */
@Override
public void addCheckpoint(final CompletedCheckpoint checkpoint) throws Exception {
  checkNotNull(checkpoint, "Checkpoint");
  final String path = checkpointIdToPath(checkpoint.getCheckpointID());
  // Now add the new one. If it fails, we don't want to loose existing data.
  checkpointsInZooKeeper.addAndLock(path, checkpoint);
  completedCheckpoints.addLast(checkpoint);
  // Everything worked, let's remove a previous checkpoint if necessary.
  while (completedCheckpoints.size() > maxNumberOfCheckpointsToRetain) {
    final CompletedCheckpoint completedCheckpoint = completedCheckpoints.removeFirst();
    tryRemoveCompletedCheckpoint(completedCheckpoint, CompletedCheckpoint::discardOnSubsume);
  }
  LOG.debug("Added {} to {}.", checkpoint, path);
}

代码示例来源：origin: com.alibaba.blink/flink-runtime

/**
 * Synchronously writes the new checkpoints to ZooKeeper and asynchronously removes older ones.
 *
 * @param checkpoint Completed checkpoint to add.
 */
@Override
public void addCheckpoint(final CompletedCheckpoint checkpoint) throws Exception {
  checkNotNull(checkpoint, "Checkpoint");
  final String path = checkpointIdToPath(checkpoint.getCheckpointID());
  // Now add the new one. If it fails, we don't want to loose existing data.
  checkpointsInZooKeeper.addAndLock(path, checkpoint);
  completedCheckpoints.addLast(checkpoint);
  // Everything worked, let's remove a previous checkpoint if necessary.
  while (completedCheckpoints.size() > maxNumberOfCheckpointsToRetain) {
    try {
      removeSubsumed(completedCheckpoints.removeFirst());
    } catch (Exception e) {
      LOG.warn("Failed to subsume the old checkpoint", e);
    }
  }
  LOG.debug("Added {} to {}.", checkpoint, path);
}

代码示例来源：origin: org.apache.flink/flink-runtime

/**
 * Synchronously writes the new checkpoints to ZooKeeper and asynchronously removes older ones.
 *
 * @param checkpoint Completed checkpoint to add.
 */
@Override
public void addCheckpoint(final CompletedCheckpoint checkpoint) throws Exception {
  checkNotNull(checkpoint, "Checkpoint");
  final String path = checkpointIdToPath(checkpoint.getCheckpointID());
  // Now add the new one. If it fails, we don't want to loose existing data.
  checkpointsInZooKeeper.addAndLock(path, checkpoint);
  completedCheckpoints.addLast(checkpoint);
  // Everything worked, let's remove a previous checkpoint if necessary.
  while (completedCheckpoints.size() > maxNumberOfCheckpointsToRetain) {
    final CompletedCheckpoint completedCheckpoint = completedCheckpoints.removeFirst();
    tryRemoveCompletedCheckpoint(completedCheckpoint, CompletedCheckpoint::discardOnSubsume);
  }
  LOG.debug("Added {} to {}.", checkpoint, path);
}

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