Examples with TransactionPolicy io.cdap.cdap.api.annotation.TransactionPolicy used on opensource projects

Example 11 with TransactionPolicy

use of io.cdap.cdap.api.annotation.TransactionPolicy in project cdap by cdapio.

the class ETLSpark method initialize.

@Override
@TransactionPolicy(TransactionControl.EXPLICIT)
public void initialize() throws Exception {
    SparkClientContext context = getContext();
    SparkConf sparkConf = new SparkConf();
    sparkConf.set("spark.speculation", "false");
    // turn off auto-broadcast by default until we better understand the implications and can set this to a
    // value that we are confident is safe.
    sparkConf.set("spark.sql.autoBroadcastJoinThreshold", "-1");
    sparkConf.set("spark.maxRemoteBlockSizeFetchToMem", String.valueOf(Integer.MAX_VALUE - 512));
    sparkConf.set("spark.network.timeout", "600s");
    // Disable yarn app retries since spark already performs retries at a task level.
    sparkConf.set("spark.yarn.maxAppAttempts", "1");
    // to make sure fields that are the same but different casing are treated as different fields in auto-joins
    // see CDAP-17024
    sparkConf.set("spark.sql.caseSensitive", "true");
    context.setSparkConf(sparkConf);
    Map<String, String> properties = context.getSpecification().getProperties();
    BatchPhaseSpec phaseSpec = GSON.fromJson(properties.get(Constants.PIPELINEID), BatchPhaseSpec.class);
    for (Map.Entry<String, String> pipelineProperty : phaseSpec.getPipelineProperties().entrySet()) {
        sparkConf.set(pipelineProperty.getKey(), pipelineProperty.getValue());
    }
    PipelineRuntime pipelineRuntime = new PipelineRuntime(context);
    MacroEvaluator evaluator = new DefaultMacroEvaluator(pipelineRuntime.getArguments(), context.getLogicalStartTime(), context, context, context.getNamespace());
    SparkPreparer preparer = new SparkPreparer(context, context.getMetrics(), evaluator, pipelineRuntime);
    List<Finisher> finishers = preparer.prepare(phaseSpec);
    finisher = new CompositeFinisher(finishers);
}

Example 12 with TransactionPolicy

use of io.cdap.cdap.api.annotation.TransactionPolicy in project cdap by cdapio.

the class ETLMapReduce method initialize.

@Override
@TransactionPolicy(TransactionControl.EXPLICIT)
public void initialize() throws Exception {
    MapReduceContext context = getContext();
    Map<String, String> properties = context.getSpecification().getProperties();
    if (Boolean.valueOf(properties.get(Constants.STAGE_LOGGING_ENABLED))) {
        LogStageInjector.start();
    }
    PipelineRuntime pipelineRuntime = new PipelineRuntime(context, mrMetrics);
    Job job = context.getHadoopJob();
    Configuration hConf = job.getConfiguration();
    BatchPhaseSpec phaseSpec = GSON.fromJson(properties.get(Constants.PIPELINEID), BatchPhaseSpec.class);
    for (Map.Entry<String, String> pipelineProperty : phaseSpec.getPipelineProperties().entrySet()) {
        hConf.set(pipelineProperty.getKey(), pipelineProperty.getValue());
    }
    // should never happen if planner is correct
    Set<StageSpec> reducers = phaseSpec.getPhase().getStagesOfType(BatchAggregator.PLUGIN_TYPE, BatchJoiner.PLUGIN_TYPE);
    if (reducers.size() > 1) {
        Iterator<StageSpec> reducerIter = reducers.iterator();
        StringBuilder reducersStr = new StringBuilder(reducerIter.next().getName());
        while (reducerIter.hasNext()) {
            reducersStr.append(",");
            reducersStr.append(reducerIter.next().getName());
        }
        throw new IllegalStateException("Found multiple reducers ( " + reducersStr + " ) in the same pipeline phase. " + "This means there was a bug in planning the pipeline when it was deployed. ");
    }
    job.setMapperClass(ETLMapper.class);
    if (reducers.isEmpty()) {
        job.setNumReduceTasks(0);
    } else {
        job.setReducerClass(ETLReducer.class);
    }
    // instantiate plugins and call their prepare methods
    Set<String> connectorDatasets = GSON.fromJson(properties.get(Constants.CONNECTOR_DATASETS), CONNECTOR_DATASETS_TYPE);
    MacroEvaluator evaluator = new DefaultMacroEvaluator(pipelineRuntime.getArguments(), context.getLogicalStartTime(), context, context, context.getNamespace());
    MapReducePreparer preparer = new MapReducePreparer(context, mrMetrics, evaluator, pipelineRuntime, connectorDatasets);
    List<Finisher> finishers = preparer.prepare(phaseSpec, job);
    finisher = new CompositeFinisher(finishers);
}

Example 13 with TransactionPolicy

use of io.cdap.cdap.api.annotation.TransactionPolicy in project cdap by cdapio.

the class ConnectionHandler method deleteConnection.

/**
 * Delete a connection in the given namespace
 */
@DELETE
@TransactionPolicy(value = TransactionControl.EXPLICIT)
@Path(API_VERSION + "/contexts/{context}/connections/{connection}")
public void deleteConnection(HttpServiceRequest request, HttpServiceResponder responder, @PathParam("context") String namespace, @PathParam("connection") String connection) {
    respond(namespace, responder, namespaceSummary -> {
        if (namespaceSummary.getName().equalsIgnoreCase(NamespaceId.SYSTEM.getNamespace())) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "Deleting connection in system namespace is currently not supported");
            return;
        }
        ConnectionId connectionId = new ConnectionId(namespaceSummary, connection);
        contextAccessEnforcer.enforce(new ConnectionEntityId(namespace, connectionId.getConnectionId()), StandardPermission.DELETE);
        Connection oldConnection = store.getConnection(connectionId);
        store.deleteConnection(connectionId);
        Metrics child = metrics.child(ImmutableMap.of(Constants.Metrics.Tag.APP_ENTITY_TYPE, Constants.CONNECTION_SERVICE_NAME, Constants.Metrics.Tag.APP_ENTITY_TYPE_NAME, oldConnection.getConnectionType()));
        child.count(Constants.Metrics.Connection.CONNECTION_DELETED_COUNT, 1);
        responder.sendStatus(HttpURLConnection.HTTP_OK);
    });
}

Example 14 with TransactionPolicy

use of io.cdap.cdap.api.annotation.TransactionPolicy in project cdap by cdapio.

the class ConnectionHandler method sample.

/**
 * Retrive sample result for the connection
 */
@POST
@TransactionPolicy(value = TransactionControl.EXPLICIT)
@Path(API_VERSION + "/contexts/{context}/connections/{connection}/sample")
public void sample(HttpServiceRequest request, HttpServiceResponder responder, @PathParam("context") String namespace, @PathParam("connection") String connection) {
    respond(namespace, responder, namespaceSummary -> {
        if (namespaceSummary.getName().equalsIgnoreCase(NamespaceId.SYSTEM.getNamespace())) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "Sampling connection in system namespace is currently not supported");
            return;
        }
        contextAccessEnforcer.enforce(new ConnectionEntityId(namespace, ConnectionId.getConnectionId(connection)), StandardPermission.USE);
        String sampleRequestString = StandardCharsets.UTF_8.decode(request.getContent()).toString();
        SampleRequest sampleRequest = GSON.fromJson(sampleRequestString, SampleRequest.class);
        if (sampleRequest == null) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "The request body is empty");
            return;
        }
        if (sampleRequest.getPath() == null) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "Path is not provided in the sample request");
            return;
        }
        if (sampleRequest.getLimit() <= 0) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "Limit should be greater than 0");
            return;
        }
        Connection conn = store.getConnection(new ConnectionId(namespaceSummary, connection));
        if (getContext().isRemoteTaskEnabled()) {
            executeRemotely(namespace, sampleRequestString, conn, RemoteConnectionSampleTask.class, responder);
        } else {
            sampleLocally(namespaceSummary.getName(), sampleRequestString, conn, responder);
        }
        Metrics child = metrics.child(ImmutableMap.of(Constants.Metrics.Tag.APP_ENTITY_TYPE, Constants.CONNECTION_SERVICE_NAME, Constants.Metrics.Tag.APP_ENTITY_TYPE_NAME, conn.getConnectionType()));
        child.count(Constants.Metrics.Connection.CONNECTION_SAMPLE_COUNT, 1);
        // sample will also generate the spec, so add the metric for it
        child.count(Constants.Metrics.Connection.CONNECTION_SPEC_COUNT, 1);
    });
}

Example 15 with TransactionPolicy

use of io.cdap.cdap.api.annotation.TransactionPolicy in project cdap by cdapio.

the class ConnectionHandler method getConnection.

/**
 * Returns the specific connection information in the given namespace
 */
@GET
@TransactionPolicy(value = TransactionControl.EXPLICIT)
@Path(API_VERSION + "/contexts/{context}/connections/{connection}")
public void getConnection(HttpServiceRequest request, HttpServiceResponder responder, @PathParam("context") String namespace, @PathParam("connection") String connection) {
    respond(namespace, responder, namespaceSummary -> {
        if (namespaceSummary.getName().equalsIgnoreCase(NamespaceId.SYSTEM.getNamespace())) {
            responder.sendError(HttpURLConnection.HTTP_BAD_REQUEST, "Getting connection in system namespace is currently not supported");
            return;
        }
        contextAccessEnforcer.enforce(new ConnectionEntityId(namespace, ConnectionId.getConnectionId(connection)), StandardPermission.GET);
        Connection conn = store.getConnection(new ConnectionId(namespaceSummary, connection));
        Metrics child = metrics.child(ImmutableMap.of(Constants.Metrics.Tag.APP_ENTITY_TYPE, Constants.CONNECTION_SERVICE_NAME, Constants.Metrics.Tag.APP_ENTITY_TYPE_NAME, conn.getConnectionType()));
        child.count(Constants.Metrics.Connection.CONNECTION_GET_COUNT, 1);
        responder.sendJson(conn);
    });
}