Examples with TransSplitter org.pentaho.di.trans.cluster.TransSplitter used on opensource projects

Example 1 with TransSplitter

use of org.pentaho.di.trans.cluster.TransSplitter in project pentaho-kettle by pentaho.

the class JobEntryTrans method execute.

/**
 * Execute this job entry and return the result. In this case it means, just set the result boolean in the Result
 * class.
 *
 * @param result The result of the previous execution
 * @param nr     the job entry number
 * @return The Result of the execution.
 */
@Override
public Result execute(Result result, int nr) throws KettleException {
    result.setEntryNr(nr);
    LogChannelFileWriter logChannelFileWriter = null;
    LogLevel transLogLevel = parentJob.getLogLevel();
    // Set Embedded NamedCluter MetatStore Provider Key so that it can be passed to VFS
    if (parentJobMeta.getNamedClusterEmbedManager() != null) {
        parentJobMeta.getNamedClusterEmbedManager().passEmbeddedMetastoreKey(this, parentJobMeta.getEmbeddedMetastoreProviderKey());
    }
    String realLogFilename = "";
    if (setLogfile) {
        transLogLevel = logFileLevel;
        realLogFilename = environmentSubstitute(getLogFilename());
        // if we do not have one, we must fail
        if (Utils.isEmpty(realLogFilename)) {
            logError(BaseMessages.getString(PKG, "JobTrans.Exception.LogFilenameMissing"));
            result.setNrErrors(1);
            result.setResult(false);
            return result;
        }
        // create parent folder?
        if (!FileUtil.createParentFolder(PKG, realLogFilename, createParentFolder, this.getLogChannel(), this)) {
            result.setNrErrors(1);
            result.setResult(false);
            return result;
        }
        try {
            logChannelFileWriter = new LogChannelFileWriter(this.getLogChannelId(), KettleVFS.getFileObject(realLogFilename, this), setAppendLogfile);
            logChannelFileWriter.startLogging();
        } catch (KettleException e) {
            logError(BaseMessages.getString(PKG, "JobTrans.Error.UnableOpenAppender", realLogFilename, e.toString()));
            logError(Const.getStackTracker(e));
            result.setNrErrors(1);
            result.setResult(false);
            return result;
        }
    }
    // 
    switch(specificationMethod) {
        case FILENAME:
            if (isDetailed()) {
                logDetailed(BaseMessages.getString(PKG, "JobTrans.Log.OpeningTrans", environmentSubstitute(getFilename())));
            }
            break;
        case REPOSITORY_BY_NAME:
            if (isDetailed()) {
                logDetailed(BaseMessages.getString(PKG, "JobTrans.Log.OpeningTransInDirec", environmentSubstitute(getFilename()), environmentSubstitute(directory)));
            }
            break;
        case REPOSITORY_BY_REFERENCE:
            if (isDetailed()) {
                logDetailed(BaseMessages.getString(PKG, "JobTrans.Log.OpeningTransByReference", transObjectId));
            }
            break;
        default:
            break;
    }
    // Load the transformation only once for the complete loop!
    // Throws an exception if it was not possible to load the transformation. For example, the XML file doesn't exist or
    // the repository is down.
    // Log the stack trace and return an error condition from this
    // 
    TransMeta transMeta = null;
    try {
        transMeta = getTransMeta(rep, metaStore, this);
    } catch (KettleException e) {
        logError(BaseMessages.getString(PKG, "JobTrans.Exception.UnableToRunJob", parentJobMeta.getName(), getName(), StringUtils.trim(e.getMessage())), e);
        result.setNrErrors(1);
        result.setResult(false);
        return result;
    }
    int iteration = 0;
    String[] args1 = arguments;
    if (args1 == null || args1.length == 0) {
        // No arguments set, look at the parent job.
        args1 = parentJob.getArguments();
    }
    // initializeVariablesFrom(parentJob);
    // 
    // For the moment only do variable translation at the start of a job, not
    // for every input row (if that would be switched on). This is for safety,
    // the real argument setting is later on.
    // 
    String[] args = null;
    if (args1 != null) {
        args = new String[args1.length];
        for (int idx = 0; idx < args1.length; idx++) {
            args[idx] = environmentSubstitute(args1[idx]);
        }
    }
    RowMetaAndData resultRow = null;
    boolean first = true;
    List<RowMetaAndData> rows = new ArrayList<RowMetaAndData>(result.getRows());
    while ((first && !execPerRow) || (execPerRow && rows != null && iteration < rows.size() && result.getNrErrors() == 0) && !parentJob.isStopped()) {
        // 
        if (execPerRow) {
            result.getRows().clear();
        }
        if (rows != null && execPerRow) {
            resultRow = rows.get(iteration);
        } else {
            resultRow = null;
        }
        NamedParams namedParam = new NamedParamsDefault();
        if (parameters != null) {
            for (int idx = 0; idx < parameters.length; idx++) {
                if (!Utils.isEmpty(parameters[idx])) {
                    // We have a parameter
                    // 
                    namedParam.addParameterDefinition(parameters[idx], "", "Job entry runtime");
                    if (Utils.isEmpty(Const.trim(parameterFieldNames[idx]))) {
                        // There is no field name specified.
                        // 
                        String value = Const.NVL(environmentSubstitute(parameterValues[idx]), "");
                        namedParam.setParameterValue(parameters[idx], value);
                    } else {
                        // something filled in, in the field column...
                        // 
                        String value = "";
                        if (resultRow != null) {
                            value = resultRow.getString(parameterFieldNames[idx], "");
                        }
                        namedParam.setParameterValue(parameters[idx], value);
                    }
                }
            }
        }
        first = false;
        Result previousResult = result;
        try {
            if (isDetailed()) {
                logDetailed(BaseMessages.getString(PKG, "JobTrans.StartingTrans", getFilename(), getName(), getDescription()));
            }
            if (clearResultRows) {
                previousResult.setRows(new ArrayList<RowMetaAndData>());
            }
            if (clearResultFiles) {
                previousResult.getResultFiles().clear();
            }
            /*
         * Set one or more "result" rows on the transformation...
         */
            if (execPerRow) {
                if (argFromPrevious) {
                    // Copy the input row to the (command line) arguments
                    args = null;
                    if (resultRow != null) {
                        args = new String[resultRow.size()];
                        for (int i = 0; i < resultRow.size(); i++) {
                            args[i] = resultRow.getString(i, null);
                        }
                    }
                } else {
                    // Just pass a single row
                    List<RowMetaAndData> newList = new ArrayList<RowMetaAndData>();
                    newList.add(resultRow);
                    // This previous result rows list can be either empty or not.
                    // Depending on the checkbox "clear result rows"
                    // In this case, it would execute the transformation with one extra row each time
                    // Can't figure out a real use-case for it, but hey, who am I to decide that, right?
                    // :-)
                    // 
                    previousResult.getRows().addAll(newList);
                }
                if (paramsFromPrevious) {
                    if (parameters != null) {
                        for (int idx = 0; idx < parameters.length; idx++) {
                            if (!Utils.isEmpty(parameters[idx])) {
                                // We have a parameter
                                if (Utils.isEmpty(Const.trim(parameterFieldNames[idx]))) {
                                    namedParam.setParameterValue(parameters[idx], Const.NVL(environmentSubstitute(parameterValues[idx]), ""));
                                } else {
                                    String fieldValue = "";
                                    if (resultRow != null) {
                                        fieldValue = resultRow.getString(parameterFieldNames[idx], "");
                                    }
                                    // Get the value from the input stream
                                    namedParam.setParameterValue(parameters[idx], Const.NVL(fieldValue, ""));
                                }
                            }
                        }
                    }
                }
            } else {
                if (argFromPrevious) {
                    // Only put the first Row on the arguments
                    args = null;
                    if (resultRow != null) {
                        args = new String[resultRow.size()];
                        for (int i = 0; i < resultRow.size(); i++) {
                            args[i] = resultRow.getString(i, null);
                        }
                    }
                }
                if (paramsFromPrevious) {
                    // Copy the input the parameters
                    if (parameters != null) {
                        for (int idx = 0; idx < parameters.length; idx++) {
                            if (!Utils.isEmpty(parameters[idx])) {
                                // We have a parameter
                                if (Utils.isEmpty(Const.trim(parameterFieldNames[idx]))) {
                                    namedParam.setParameterValue(parameters[idx], Const.NVL(environmentSubstitute(parameterValues[idx]), ""));
                                } else {
                                    String fieldValue = "";
                                    if (resultRow != null) {
                                        fieldValue = resultRow.getString(parameterFieldNames[idx], "");
                                    }
                                    // Get the value from the input stream
                                    namedParam.setParameterValue(parameters[idx], Const.NVL(fieldValue, ""));
                                }
                            }
                        }
                    }
                }
            }
            // Handle the parameters...
            // 
            transMeta.clearParameters();
            String[] parameterNames = transMeta.listParameters();
            StepWithMappingMeta.activateParams(transMeta, transMeta, this, parameterNames, parameters, parameterValues);
            boolean doFallback = true;
            SlaveServer remoteSlaveServer = null;
            TransExecutionConfiguration executionConfiguration = new TransExecutionConfiguration();
            if (!Utils.isEmpty(runConfiguration)) {
                log.logBasic(BaseMessages.getString(PKG, "JobTrans.RunConfig.Message"), runConfiguration);
                runConfiguration = environmentSubstitute(runConfiguration);
                executionConfiguration.setRunConfiguration(runConfiguration);
                try {
                    ExtensionPointHandler.callExtensionPoint(log, KettleExtensionPoint.SpoonTransBeforeStart.id, new Object[] { executionConfiguration, parentJob.getJobMeta(), transMeta, rep });
                    if (!executionConfiguration.isExecutingLocally() && !executionConfiguration.isExecutingRemotely() && !executionConfiguration.isExecutingClustered()) {
                        result.setResult(true);
                        return result;
                    }
                    clustering = executionConfiguration.isExecutingClustered();
                    remoteSlaveServer = executionConfiguration.getRemoteServer();
                    doFallback = false;
                } catch (KettleException e) {
                    log.logError(e.getMessage(), getName());
                    result.setNrErrors(1);
                    result.setResult(false);
                    return result;
                }
            }
            if (doFallback) {
                // 
                if (!Utils.isEmpty(remoteSlaveServerName)) {
                    String realRemoteSlaveServerName = environmentSubstitute(remoteSlaveServerName);
                    remoteSlaveServer = parentJob.getJobMeta().findSlaveServer(realRemoteSlaveServerName);
                    if (remoteSlaveServer == null) {
                        throw new KettleException(BaseMessages.getString(PKG, "JobTrans.Exception.UnableToFindRemoteSlaveServer", realRemoteSlaveServerName));
                    }
                }
            }
            // 
            if (clustering) {
                executionConfiguration.setClusterPosting(true);
                executionConfiguration.setClusterPreparing(true);
                executionConfiguration.setClusterStarting(true);
                executionConfiguration.setClusterShowingTransformation(false);
                executionConfiguration.setSafeModeEnabled(false);
                executionConfiguration.setRepository(rep);
                executionConfiguration.setLogLevel(transLogLevel);
                executionConfiguration.setPreviousResult(previousResult);
                // Also pass the variables from the transformation into the execution configuration
                // That way it can go over the HTTP connection to the slave server.
                // 
                executionConfiguration.setVariables(transMeta);
                // Also set the arguments...
                // 
                executionConfiguration.setArgumentStrings(args);
                if (parentJob.getJobMeta().isBatchIdPassed()) {
                    executionConfiguration.setPassedBatchId(parentJob.getPassedBatchId());
                }
                TransSplitter transSplitter = null;
                long errors = 0;
                try {
                    transSplitter = Trans.executeClustered(transMeta, executionConfiguration);
                    // Monitor the running transformations, wait until they are done.
                    // Also kill them all if anything goes bad
                    // Also clean up afterwards...
                    // 
                    errors += Trans.monitorClusteredTransformation(log, transSplitter, parentJob);
                } catch (Exception e) {
                    logError("Error during clustered execution. Cleaning up clustered execution.", e);
                    // In case something goes wrong, make sure to clean up afterwards!
                    // 
                    errors++;
                    if (transSplitter != null) {
                        Trans.cleanupCluster(log, transSplitter);
                    } else {
                        // Try to clean anyway...
                        // 
                        SlaveServer master = null;
                        for (StepMeta stepMeta : transMeta.getSteps()) {
                            if (stepMeta.isClustered()) {
                                for (SlaveServer slaveServer : stepMeta.getClusterSchema().getSlaveServers()) {
                                    if (slaveServer.isMaster()) {
                                        master = slaveServer;
                                        break;
                                    }
                                }
                            }
                        }
                        if (master != null) {
                            master.deAllocateServerSockets(transMeta.getName(), null);
                        }
                    }
                }
                result.clear();
                if (transSplitter != null) {
                    Result clusterResult = Trans.getClusteredTransformationResult(log, transSplitter, parentJob, executionConfiguration.isLogRemoteExecutionLocally());
                    result.add(clusterResult);
                }
                result.setNrErrors(result.getNrErrors() + errors);
            } else if (remoteSlaveServer != null) {
                // Execute this transformation remotely
                // 
                // Make sure we can parameterize the slave server connection
                // 
                remoteSlaveServer.shareVariablesWith(this);
                // Remote execution...
                // 
                executionConfiguration.setPreviousResult(previousResult.clone());
                executionConfiguration.setArgumentStrings(args);
                executionConfiguration.setVariables(this);
                executionConfiguration.setRemoteServer(remoteSlaveServer);
                executionConfiguration.setLogLevel(transLogLevel);
                executionConfiguration.setRepository(rep);
                executionConfiguration.setLogFileName(realLogFilename);
                executionConfiguration.setSetAppendLogfile(setAppendLogfile);
                executionConfiguration.setSetLogfile(setLogfile);
                Map<String, String> params = executionConfiguration.getParams();
                for (String param : transMeta.listParameters()) {
                    String value = Const.NVL(transMeta.getParameterValue(param), Const.NVL(transMeta.getParameterDefault(param), transMeta.getVariable(param)));
                    params.put(param, value);
                }
                if (parentJob.getJobMeta().isBatchIdPassed()) {
                    executionConfiguration.setPassedBatchId(parentJob.getPassedBatchId());
                }
                // Send the XML over to the slave server
                // Also start the transformation over there...
                // 
                String carteObjectId = Trans.sendToSlaveServer(transMeta, executionConfiguration, rep, metaStore);
                // Now start the monitoring...
                // 
                SlaveServerTransStatus transStatus = null;
                while (!parentJob.isStopped() && waitingToFinish) {
                    try {
                        transStatus = remoteSlaveServer.getTransStatus(transMeta.getName(), carteObjectId, 0);
                        if (!transStatus.isRunning()) {
                            // The transformation is finished, get the result...
                            // 
                            // get the status with the result ( we don't do it above because of changing PDI-15781)
                            transStatus = remoteSlaveServer.getTransStatus(transMeta.getName(), carteObjectId, 0, true);
                            Result remoteResult = transStatus.getResult();
                            result.clear();
                            result.add(remoteResult);
                            // 
                            if (remoteResult.isStopped()) {
                                // 
                                result.setNrErrors(result.getNrErrors() + 1);
                            }
                            // Make sure to clean up : write a log record etc, close any left-over sockets etc.
                            // 
                            remoteSlaveServer.cleanupTransformation(transMeta.getName(), carteObjectId);
                            break;
                        }
                    } catch (Exception e1) {
                        logError(BaseMessages.getString(PKG, "JobTrans.Error.UnableContactSlaveServer", "" + remoteSlaveServer, transMeta.getName()), e1);
                        result.setNrErrors(result.getNrErrors() + 1L);
                        // Stop looking too, chances are too low the server will come back on-line
                        break;
                    }
                    // sleep for 2 seconds
                    try {
                        Thread.sleep(2000);
                    } catch (InterruptedException e) {
                    // Ignore
                    }
                }
                if (parentJob.isStopped()) {
                    // 
                    if (transStatus == null || transStatus.isRunning()) {
                        // Try a remote abort ...
                        // 
                        remoteSlaveServer.stopTransformation(transMeta.getName(), transStatus.getId());
                        // And a cleanup...
                        // 
                        remoteSlaveServer.cleanupTransformation(transMeta.getName(), transStatus.getId());
                        // Set an error state!
                        // 
                        result.setNrErrors(result.getNrErrors() + 1L);
                    }
                }
            } else {
                // Execute this transformation on the local machine
                // 
                // Create the transformation from meta-data
                // 
                // trans = new Trans( transMeta, this );
                final TransMeta meta = transMeta;
                trans = new TransSupplier(transMeta, log, () -> new Trans(meta)).get();
                trans.setParent(this);
                // Pass the socket repository as early as possible...
                // 
                trans.setSocketRepository(parentJob.getSocketRepository());
                if (parentJob.getJobMeta().isBatchIdPassed()) {
                    trans.setPassedBatchId(parentJob.getPassedBatchId());
                }
                // set the parent job on the transformation, variables are taken from here...
                // 
                trans.setParentJob(parentJob);
                trans.setParentVariableSpace(parentJob);
                trans.setLogLevel(transLogLevel);
                trans.setPreviousResult(previousResult);
                trans.setArguments(arguments);
                // Mappings need the repository to load from
                // 
                trans.setRepository(rep);
                // inject the metaStore
                trans.setMetaStore(metaStore);
                // First get the root job
                // 
                Job rootJob = parentJob;
                while (rootJob.getParentJob() != null) {
                    rootJob = rootJob.getParentJob();
                }
                // Get the start and end-date from the root job...
                // 
                trans.setJobStartDate(rootJob.getStartDate());
                trans.setJobEndDate(rootJob.getEndDate());
                // 
                for (DelegationListener delegationListener : parentJob.getDelegationListeners()) {
                    // TODO: copy some settings in the job execution configuration, not strictly needed
                    // but the execution configuration information is useful in case of a job re-start
                    // 
                    delegationListener.transformationDelegationStarted(trans, new TransExecutionConfiguration());
                }
                try {
                    // Start execution...
                    // 
                    trans.execute(args);
                    // TODO is it possible to implement Observer pattern to avoid Thread.sleep here?
                    while (!trans.isFinished() && trans.getErrors() == 0) {
                        if (parentJob.isStopped()) {
                            trans.stopAll();
                            break;
                        } else {
                            try {
                                Thread.sleep(0, 500);
                            } catch (InterruptedException e) {
                            // Ignore errors
                            }
                        }
                    }
                    trans.waitUntilFinished();
                    if (parentJob.isStopped() || trans.getErrors() != 0) {
                        trans.stopAll();
                        result.setNrErrors(1);
                    }
                    Result newResult = trans.getResult();
                    // clear only the numbers, NOT the files or rows.
                    result.clear();
                    result.add(newResult);
                    // Set the result rows too, if any ...
                    if (!Utils.isEmpty(newResult.getRows())) {
                        result.setRows(newResult.getRows());
                    }
                    if (setLogfile) {
                        ResultFile resultFile = new ResultFile(ResultFile.FILE_TYPE_LOG, KettleVFS.getFileObject(realLogFilename, this), parentJob.getJobname(), toString());
                        result.getResultFiles().put(resultFile.getFile().toString(), resultFile);
                    }
                } catch (KettleException e) {
                    logError(BaseMessages.getString(PKG, "JobTrans.Error.UnablePrepareExec"), e);
                    result.setNrErrors(1);
                }
            }
        } catch (Exception e) {
            logError(BaseMessages.getString(PKG, "JobTrans.ErrorUnableOpenTrans", e.getMessage()));
            logError(Const.getStackTracker(e));
            result.setNrErrors(1);
        }
        iteration++;
    }
    if (setLogfile) {
        if (logChannelFileWriter != null) {
            logChannelFileWriter.stopLogging();
            ResultFile resultFile = new ResultFile(ResultFile.FILE_TYPE_LOG, logChannelFileWriter.getLogFile(), parentJob.getJobname(), getName());
            result.getResultFiles().put(resultFile.getFile().toString(), resultFile);
            // 
            if (logChannelFileWriter.getException() != null) {
                logError("Unable to open log file [" + getLogFilename() + "] : ");
                logError(Const.getStackTracker(logChannelFileWriter.getException()));
                result.setNrErrors(1);
                result.setResult(false);
                return result;
            }
        }
    }
    if (result.getNrErrors() == 0) {
        result.setResult(true);
    } else {
        result.setResult(false);
    }
    return result;
}

Example 2 with TransSplitter

use of org.pentaho.di.trans.cluster.TransSplitter in project pentaho-kettle by pentaho.

the class MasterSlaveIT method runParallelFileReadOnSlavesWithPartitioning2.

/**
 * This test reads a CSV file in parallel on all 3 slaves, each with 4 partitions.<br>
 * This is a variation on the test right above, with 2 steps in sequence in clustering & partitioning.<br>
 * It then passes the data over to a dummy step on the slaves.<br>
 */
public void runParallelFileReadOnSlavesWithPartitioning2() throws Exception {
    TransMeta transMeta = loadTransMetaReplaceSlavesInCluster(clusterGenerator, "test/org/pentaho/di/cluster/test-parallel-file-read-on-slaves-with-partitioning2.ktr");
    TransExecutionConfiguration config = createClusteredTransExecutionConfiguration();
    TransSplitter transSplitter = Trans.executeClustered(transMeta, config);
    LogChannel logChannel = createLogChannel("cluster unit test <runParallelFileReadOnSlavesWithPartitioning2>");
    long nrErrors = Trans.monitorClusteredTransformation(logChannel, transSplitter, null, 1);
    assertEquals(0L, nrErrors);
    String result = loadFileContent(transMeta, "${java.io.tmpdir}/test-parallel-file-read-on-slaves-with-partitioning2.txt");
    assertEqualsIgnoreWhitespacesAndCase("100", result);
}

Example 3 with TransSplitter

use of org.pentaho.di.trans.cluster.TransSplitter in project pentaho-kettle by pentaho.

the class MasterSlaveIT method runParallelFileReadOnSlavesWithPartitioning.

/**
 * This test reads a CSV file in parallel on all 3 slaves, each with 4 partitions.<br>
 * It then passes the data over to a dummy step on the slaves.<br>
 */
public void runParallelFileReadOnSlavesWithPartitioning() throws Exception {
    TransMeta transMeta = loadTransMetaReplaceSlavesInCluster(clusterGenerator, "test/org/pentaho/di/cluster/test-parallel-file-read-on-slaves-with-partitioning.ktr");
    TransExecutionConfiguration config = createClusteredTransExecutionConfiguration();
    TransSplitter transSplitter = Trans.executeClustered(transMeta, config);
    LogChannel logChannel = createLogChannel("cluster unit test <runParallelFileReadOnSlavesWithPartitioning>");
    long nrErrors = Trans.monitorClusteredTransformation(logChannel, transSplitter, null, 1);
    assertEquals(0L, nrErrors);
    String result = loadFileContent(transMeta, "${java.io.tmpdir}/test-parallel-file-read-on-slaves-with-partitioning.txt");
    assertEqualsIgnoreWhitespacesAndCase("100", result);
}

Example 4 with TransSplitter

use of org.pentaho.di.trans.cluster.TransSplitter in project pentaho-kettle by pentaho.

the class MasterSlaveIT method runOneStepClustered.

/**
 * This test generates rows on the master, generates random values clustered and brings them back the master.<br>
 * See also: PDI-6324 : Generate Rows to a clustered step ceases to work
 */
public void runOneStepClustered() throws Exception {
    TransMeta transMeta = loadTransMetaReplaceSlavesInCluster(clusterGenerator, "test/org/pentaho/di/cluster/one-step-clustered.ktr");
    TransExecutionConfiguration config = createClusteredTransExecutionConfiguration();
    TransSplitter transSplitter = Trans.executeClustered(transMeta, config);
    LogChannel logChannel = createLogChannel("cluster unit test <runOneStepClustered>");
    long nrErrors = Trans.monitorClusteredTransformation(logChannel, transSplitter, null, 1);
    assertEquals(0L, nrErrors);
    String result = loadFileContent(transMeta, "${java.io.tmpdir}/one-step-clustered.txt");
    assertEqualsIgnoreWhitespacesAndCase("10000", result);
}

Example 5 with TransSplitter

use of org.pentaho.di.trans.cluster.TransSplitter in project pentaho-kettle by pentaho.

the class MasterSlaveIT method runSubtransformationClustered.

/**
 * This test check passing rows to sub-transformation executed on cluster
 * See PDI-10704 for details
 * @throws Exception
 */
public void runSubtransformationClustered() throws Exception {
    TransMeta transMeta = loadTransMetaReplaceSlavesInCluster(clusterGenerator, "test/org/pentaho/di/cluster/test-subtrans-clustered.ktr");
    TransExecutionConfiguration config = createClusteredTransExecutionConfiguration();
    Result prevResult = new Result();
    prevResult.setRows(getSampleRows());
    config.setPreviousResult(prevResult);
    TransSplitter transSplitter = Trans.executeClustered(transMeta, config);
    LogChannel logChannel = createLogChannel("cluster unit test <runSubtransformationClustered>");
    long nrErrors = Trans.monitorClusteredTransformation(logChannel, transSplitter, null, 1);
    assertEquals(0L, nrErrors);
    String result = loadFileContent(transMeta, "${java.io.tmpdir}/test-subtrans-clustered.txt");
    assertEqualsIgnoreWhitespacesAndCase("10", result);
}