org.apache.samza.storage.ChangelogStreamManager.createChangelogStreams java code examples

Common ways to obtain ChangelogStreamManager

private void myMethod () {
 ChangelogStreamManager c =CoordinatorStreamManager coordinatorStreamManager;new ChangelogStreamManager(coordinatorStreamManager)
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}

ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
hasCreatedStreams = true;

ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
hasCreatedStreams = true;

ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
hasCreatedStreams = true;

ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
storeConfigInCoordinatorStream();
hasCreatedStreams = true;

ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
hasCreatedStreams = true;

@Override
public void start() {
 // No-op
 JobModel jobModel = null;
 try {
  jobModel = getJobModel();
  CheckpointManager checkpointManager = new TaskConfigJava(jobModel.getConfig()).getCheckpointManager(null);
  if (checkpointManager != null) {
   checkpointManager.createResources();
  }
  ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
 } catch (Exception e) {
  LOGGER.error("Exception while trying to getJobModel.", e);
  if (coordinatorListener != null) {
   coordinatorListener.onCoordinatorFailure(e);
  }
 }
 if (jobModel != null && jobModel.getContainers().containsKey(processorId)) {
  if (coordinatorListener != null) {
   coordinatorListener.onJobModelExpired();
   coordinatorListener.onNewJobModel(processorId, jobModel);
  }
 } else {
  LOGGER.info("JobModel: {} does not contain processorId: {}. Stopping the JobCoordinator", jobModel, processorId);
  stop();
 }
}

 checkpointManager.createResources();
ChangelogStreamManager.createChangelogStreams(jobModel.getConfig(), jobModel.maxChangeLogStreamPartitions);

 checkpointManager.createResources();
ChangelogStreamManager.createChangelogStreams(jobModel.getConfig(), jobModel.maxChangeLogStreamPartitions);

@Override
public void start() {
 // No-op
 JobModel jobModel = null;
 try {
  jobModel = getJobModel();
  CheckpointManager checkpointManager = new TaskConfigJava(jobModel.getConfig()).getCheckpointManager(null);
  if (checkpointManager != null) {
   checkpointManager.createResources();
  }
  ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
 } catch (Exception e) {
  LOGGER.error("Exception while trying to getJobModel.", e);
  if (coordinatorListener != null) {
   coordinatorListener.onCoordinatorFailure(e);
  }
 }
 if (jobModel != null && jobModel.getContainers().containsKey(processorId)) {
  if (coordinatorListener != null) {
   coordinatorListener.onJobModelExpired();
   coordinatorListener.onNewJobModel(processorId, jobModel);
  }
 } else {
  stop();
 }
}

 checkpointManager.createResources();
ChangelogStreamManager.createChangelogStreams(jobModel.getConfig(), jobModel.maxChangeLogStreamPartitions);

 checkpointManager.createResources();
ChangelogStreamManager.createChangelogStreams(jobModel.getConfig(), jobModel.maxChangeLogStreamPartitions);

 checkpointManager.createResources();
ChangelogStreamManager.createChangelogStreams(jobModel.getConfig(), jobModel.maxChangeLogStreamPartitions);

@Override
public void start() {
 // No-op
 JobModel jobModel = null;
 try {
  jobModel = getJobModel();
  CheckpointManager checkpointManager = new TaskConfigJava(jobModel.getConfig()).getCheckpointManager(null);
  if (checkpointManager != null) {
   checkpointManager.createResources();
  }
  ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
 } catch (Exception e) {
  LOGGER.error("Exception while trying to getJobModel.", e);
  if (coordinatorListener != null) {
   coordinatorListener.onCoordinatorFailure(e);
  }
 }
 if (jobModel != null && jobModel.getContainers().containsKey(processorId)) {
  if (coordinatorListener != null) {
   coordinatorListener.onJobModelExpired();
   coordinatorListener.onNewJobModel(processorId, jobModel);
  }
 } else {
  stop();
 }
}

@Override
public void start() {
 // No-op
 JobModel jobModel = null;
 try {
  jobModel = getJobModel();
  CheckpointManager checkpointManager = new TaskConfigJava(jobModel.getConfig()).getCheckpointManager(null);
  if (checkpointManager != null) {
   checkpointManager.createResources();
  }
  ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
 } catch (Exception e) {
  LOGGER.error("Exception while trying to getJobModel.", e);
  if (coordinatorListener != null) {
   coordinatorListener.onCoordinatorFailure(e);
  }
 }
 if (jobModel != null && jobModel.getContainers().containsKey(processorId)) {
  if (coordinatorListener != null) {
   coordinatorListener.onJobModelExpired();
   coordinatorListener.onNewJobModel(processorId, jobModel);
  }
 } else {
  stop();
 }
}

@Override
public void start() {
 // No-op
 JobModel jobModel = null;
 try {
  jobModel = getJobModel();
  CheckpointManager checkpointManager = new TaskConfigJava(jobModel.getConfig()).getCheckpointManager(null);
  if (checkpointManager != null) {
   checkpointManager.createResources();
  }
  ChangelogStreamManager.createChangelogStreams(config, jobModel.maxChangeLogStreamPartitions);
 } catch (Exception e) {
  LOGGER.error("Exception while trying to getJobModel.", e);
  if (coordinatorListener != null) {
   coordinatorListener.onCoordinatorFailure(e);
  }
 }
 if (jobModel != null && jobModel.getContainers().containsKey(processorId)) {
  if (coordinatorListener != null) {
   coordinatorListener.onJobModelExpired();
   coordinatorListener.onNewJobModel(processorId, jobModel);
  }
 } else {
  stop();
 }
}

Javadoc

Utility method to create and validate changelog streams. The method is static because it does not require an instance of the CoordinatorStreamManager

Popular methods of ChangelogStreamManager

<init>
Construct changelog manager with a bootstrapped coordinator stream.
readPartitionMapping
Read the taskName to partition mapping that is being maintained by this ChangelogManager
updatePartitionMapping
Merge previous and new taskName to partition mapping and write it.
writePartitionMapping
Write the taskName to partition mapping.

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How to use createChangelogStreamsmethodin org.apache.samza.storage.ChangelogStreamManager

Best Java code snippets using org.apache.samza.storage.ChangelogStreamManager.createChangelogStreams (Showing top 15 results out of 315)

How to use
createChangelogStreams
method
in
org.apache.samza.storage.ChangelogStreamManager