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Refactor FaunusCompiler to allow for getting job status #165

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Refactor FaunusCompiler to allow for getting job status #165

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24 changes: 17 additions & 7 deletions src/main/java/com/thinkaurelius/faunus/FaunusPipeline.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import com.thinkaurelius.faunus.formats.EdgeCopyMapReduce;
import com.thinkaurelius.faunus.formats.MapReduceFormat;
import com.thinkaurelius.faunus.mapreduce.FaunusCompiler;
import com.thinkaurelius.faunus.mapreduce.FaunusTool;
import com.thinkaurelius.faunus.mapreduce.IdentityMap;
import com.thinkaurelius.faunus.mapreduce.filter.BackFilterMapReduce;
import com.thinkaurelius.faunus.mapreduce.filter.CyclicPathFilterMap;
Expand Down Expand Up @@ -44,11 +45,13 @@
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.WritableComparable;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.ToolRunner;
import org.codehaus.groovy.jsr223.GroovyScriptEngineImpl;

import javax.script.ScriptEngine;
import javax.script.ScriptException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
Expand Down Expand Up @@ -1034,7 +1037,7 @@ public String toString() {
return this.stringRepresentation.toString();
}

private FaunusPipeline done() {
public FaunusPipeline done() throws Exception {
if (!this.state.isLocked()) {
final Pair<String, Class<? extends WritableComparable>> pair = this.state.popProperty();
if (null != pair) {
Expand All @@ -1046,6 +1049,15 @@ private FaunusPipeline done() {
this.state.lock();
}
}

if (MapReduceFormat.class.isAssignableFrom(this.graph.getGraphOutputFormat())) {
this.state.assertNotLocked();
((Class<? extends MapReduceFormat>) this.graph.getGraphOutputFormat()).getConstructor().newInstance().addMapReduceJobs(this.compiler);
}

this.compiler.completeSequence();
this.compiler.composeJobs();

return this;
}

Expand All @@ -1067,12 +1079,10 @@ public void submit() throws Exception {
*/
public void submit(final String script, final Boolean showHeader) throws Exception {
this.done();
if (MapReduceFormat.class.isAssignableFrom(this.graph.getGraphOutputFormat())) {
this.state.assertNotLocked();
((Class<? extends MapReduceFormat>) this.graph.getGraphOutputFormat()).getConstructor().newInstance().addMapReduceJobs(this.compiler);
}
this.compiler.completeSequence();
ToolRunner.run(this.compiler, new String[]{script, showHeader.toString()});

FaunusTool faunusTool = new FaunusTool(this.graph, this.compiler.getJobs());

ToolRunner.run(faunusTool, new String[]{script, showHeader.toString()});
}

/**
Expand Down
47 changes: 15 additions & 32 deletions src/main/java/com/thinkaurelius/faunus/mapreduce/FaunusCompiler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

Expand Down Expand Up @@ -279,6 +280,10 @@ public void composeJobs() throws IOException {
}
}

public List<Job> getJobs() {
return this.jobs;
}

public int run(final String[] args) throws Exception {
String script = null;
boolean showHeader = true;
Expand All @@ -288,11 +293,6 @@ public int run(final String[] args) throws Exception {
showHeader = Boolean.valueOf(args[1]);
}

final FileSystem hdfs = FileSystem.get(this.getConf());
if (this.graph.getOutputLocationOverwrite() && hdfs.exists(this.graph.getOutputLocation())) {
hdfs.delete(this.graph.getOutputLocation(), true);
}

if (showHeader) {
logger.info("Faunus: Graph Analytics Engine");
logger.info(" ,");
Expand All @@ -309,37 +309,20 @@ public int run(final String[] args) throws Exception {
logger.info(" |/");
}

if (null != script && !script.isEmpty())
if (null != script && !script.isEmpty()) {
logger.info("Generating job chain: " + script);
}

this.composeJobs();
logger.info("Compiled to " + this.jobs.size() + " MapReduce job(s)");
final String jobPath = this.graph.getOutputLocation().toString() + "/" + Tokens.JOB;
for (int i = 0; i < this.jobs.size(); i++) {
final Job job = this.jobs.get(i);
try {
((JobConfigurationFormat) (FormatTools.getBaseOutputFormatClass(job).newInstance())).updateJob(job);
} catch (final Exception e) {
}
logger.info("Executing job " + (i + 1) + " out of " + this.jobs.size() + ": " + job.getJobName());
logger.info("Job data location: " + jobPath + "-" + i);
boolean success = job.waitForCompletion(true);
if (i > 0) {
final Path path = new Path(jobPath + "-" + (i - 1));
// delete previous intermediate graph data
for (final FileStatus temp : hdfs.globStatus(new Path(path.toString() + "/" + Tokens.GRAPH + "*"))) {
hdfs.delete(temp.getPath(), true);
}
// delete previous intermediate graph data
for (final FileStatus temp : hdfs.globStatus(new Path(path.toString() + "/" + Tokens.PART + "*"))) {
hdfs.delete(temp.getPath(), true);
}
}
if (!success) {
logger.error("Faunus job error -- remaining MapReduce jobs have been canceled");
return -1;
}

FaunusJobControl faunusJobControl = new FaunusJobControl(graph, jobs);
faunusJobControl.run();

if (faunusJobControl.getFailedJobs().size() == 0) {
return 0;
} else {
return -1;
}
return 0;
}
}
138 changes: 138 additions & 0 deletions src/main/java/com/thinkaurelius/faunus/mapreduce/FaunusJobControl.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,138 @@
package com.thinkaurelius.faunus.mapreduce;

import com.thinkaurelius.faunus.FaunusGraph;
import com.thinkaurelius.faunus.Tokens;
import com.thinkaurelius.faunus.formats.FormatTools;
import com.thinkaurelius.faunus.formats.JobConfigurationFormat;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.StringUtils;
import org.apache.log4j.Logger;

import java.io.IOException;
import java.util.*;

public class FaunusJobControl implements Runnable {

public static final Logger logger = Logger.getLogger(FaunusJobControl.class);

private final FaunusGraph graph;
private final LinkedList<Job> jobsInProgress = new LinkedList<>();
private Job runningJob = null;
private final LinkedList<Job> successfulJobs = new LinkedList<>();
private final LinkedList<Job> failedJobs = new LinkedList<>();

public FaunusJobControl(FaunusGraph graph, Collection<Job> jobs) {
this.graph = graph;
jobsInProgress.addAll(jobs);
}

private List<Job> toList(LinkedList<Job> jobs) {
ArrayList<Job> retv = new ArrayList<>();
synchronized (jobs) {
retv.addAll(jobs);
}
return retv;
}

public List<Job> getJobsInProgress() {
return toList(jobsInProgress);
}

synchronized public Job getRunningJob() {
return runningJob;
}

public List<Job> getSuccessfulJobs() {
return toList(successfulJobs);
}

public List<Job> getFailedJobs() {
return toList(failedJobs);
}

synchronized public boolean allFinished() {
return jobsInProgress.isEmpty();
}

@Override
public void run() {
try {
final FileSystem hdfs = FileSystem.get(this.graph.getConf());
if (this.graph.getOutputLocationOverwrite() && hdfs.exists(this.graph.getOutputLocation())) {
hdfs.delete(this.graph.getOutputLocation(), true);
}

int jobCount = this.jobsInProgress.size();
final String jobPath = this.graph.getOutputLocation().toString() + "/" + Tokens.JOB;

Iterator<Job> it = jobsInProgress.iterator();
for (int i = 0; i < jobCount; ++i) {
synchronized (this) {
runningJob = it.next();

try {
((JobConfigurationFormat) (FormatTools.getBaseOutputFormatClass(runningJob).newInstance())).updateJob(runningJob);
} catch (final Exception e) {
}

logger.info("Executing job " + (i + 1) + " out of " + jobCount + ": " + runningJob.getJobName());
logger.info("Job data location: " + jobPath + "-" + i);

runningJob.submit();
}

boolean success = runningJob.waitForCompletion(true);

synchronized (this) {
if (success) {
successfulJobs.add(runningJob);
} else {
failedJobs.add(runningJob);
}

it.remove();
runningJob = null;
}

if (i > 0) {
final Path path = new Path(jobPath + "-" + (i - 1));
// delete previous intermediate graph data
for (final FileStatus temp : hdfs.globStatus(new Path(path.toString() + "/" + Tokens.GRAPH + "*"))) {
hdfs.delete(temp.getPath(), true);
}
// delete previous intermediate graph data
for (final FileStatus temp : hdfs.globStatus(new Path(path.toString() + "/" + Tokens.PART + "*"))) {
hdfs.delete(temp.getPath(), true);
}
}
if (!success) {
logger.error("Faunus job error -- remaining MapReduce jobs have been canceled");
break;
}
}

} catch (Throwable t) {
logger.error("Error while trying to run jobs.", t);
// Mark all the jobs as failed because we got something bad.
failAllJobs(t);
}
}

synchronized private void failAllJobs(Throwable t) {
String message = "Unexpected System Error Occurred " + StringUtils.stringifyException(t);

if (runningJob != null) {
try {
runningJob.killJob();
} catch (IOException e) {
logger.error("Error trying to clean up " + runningJob.getJobName(), e);
} finally {
failedJobs.add(runningJob);
runningJob = null;
}
}
}
}
64 changes: 64 additions & 0 deletions src/main/java/com/thinkaurelius/faunus/mapreduce/FaunusTool.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,64 @@
package com.thinkaurelius.faunus.mapreduce;

import com.thinkaurelius.faunus.FaunusGraph;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.Tool;
import org.apache.log4j.Logger;

import java.util.List;

public class FaunusTool extends Configured implements Tool {
public static final Logger logger = Logger.getLogger(FaunusTool.class);

private final FaunusGraph graph;
private final List<Job> jobs;

public FaunusTool(FaunusGraph graph, List<Job> jobs) {
this.graph = graph;
this.jobs = jobs;
}

@Override
public int run(String[] args) throws Exception {

String script = null;
boolean showHeader = true;

if (args.length == 2) {
script = args[0];
showHeader = Boolean.valueOf(args[1]);
}

if (showHeader) {
logger.info("Faunus: Graph Analytics Engine");
logger.info(" ,");
logger.info(" , |\\ ,__");
logger.info(" |\\ \\/ `\\");
logger.info(" \\ `-.:. `\\");
logger.info(" `-.__ `\\/\\/\\|");
logger.info(" / `'/ () \\");
logger.info(" .' /\\ )");
logger.info(" .-' .'| \\ \\__");
logger.info(" .' __( \\ '`(()");
logger.info("/_.'` `. | )(");
logger.info(" \\ |");
logger.info(" |/");
}

if (null != script && !script.isEmpty()) {
logger.info("Generating job chain: " + script);
}

logger.info("Compiled to " + this.jobs.size() + " MapReduce job(s)");

FaunusJobControl faunusJobControl = new FaunusJobControl(graph, jobs);
faunusJobControl.run();

if (faunusJobControl.getFailedJobs().size() == 0) {
return 0;
} else {
return -1;
}
}
}