@Override
public byte[] get(NamedKey key) {
try (ResourceHolder<MemcachedClientIF> clientHolder = client.get()) {
Future<Object> future;
try {
future = clientHolder.get().asyncGet(computeKeyHash(memcachedPrefix, key));
} catch (IllegalStateException e) {
// operation did not get queued in time (queue is full)
errorCount.incrementAndGet();
log.warn(e, "Unable to queue cache operation");
return null;
}
try {
byte[] bytes = (byte[]) future.get(timeout, TimeUnit.MILLISECONDS);
if (bytes != null) {
hitCount.incrementAndGet();
} else {
missCount.incrementAndGet();
}
return bytes == null ? null : deserializeValue(key, bytes);
} catch (TimeoutException e) {
timeoutCount.incrementAndGet();
future.cancel(false);
return null;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw Throwables.propagate(e);
} catch (ExecutionException e) {
errorCount.incrementAndGet();
log.warn(e, "Exception pulling item from cache");
return null;
}
}
}
@Override
public void configure(Binder binder) {
// Instantiate eagerly so that we get everything registered and put into the Lifecycle
// This makes the shutdown run pretty darn near last.
try {
// Reflection to try and allow non Log4j2 stuff to run. This acts as a gateway to stop errors
// in the next few lines
final Class<?> logManagerClazz = Class.forName("org.apache.logging.log4j.LogManager");
final LoggerContextFactory contextFactory = LogManager.getFactory();
if (!(contextFactory instanceof Log4jContextFactory)) {
log.warn(
"Expected [%s] found [%s]. Unknown class for context factory. Not logging shutdown",
Log4jContextFactory.class.getCanonicalName(),
contextFactory.getClass().getCanonicalName());
return;
}
final ShutdownCallbackRegistry registry =
((Log4jContextFactory) contextFactory).getShutdownCallbackRegistry();
if (!(registry instanceof Log4jShutdown)) {
log.warn(
"Shutdown callback registry expected class [%s] found [%s]. Skipping shutdown registry",
Log4jShutdown.class.getCanonicalName(), registry.getClass().getCanonicalName());
return;
}
binder.bind(Log4jShutdown.class).toInstance((Log4jShutdown) registry);
binder
.bind(Key.get(Log4jShutterDowner.class, Names.named("ForTheEagerness")))
.to(Log4jShutterDowner.class)
.asEagerSingleton();
} catch (ClassNotFoundException | ClassCastException | LinkageError e) {
log.warn(e, "Not registering log4j shutdown hooks. Not using log4j?");
}
}
public FileUtils.FileCopyResult getSegmentFiles(
String region, String container, String path, File outDir) throws SegmentLoadingException {
CloudFilesObjectApiProxy objectApi =
new CloudFilesObjectApiProxy(cloudFilesApi, region, container);
final CloudFilesByteSource byteSource = new CloudFilesByteSource(objectApi, path);
try {
final FileUtils.FileCopyResult result =
CompressionUtils.unzip(byteSource, outDir, CloudFilesUtils.CLOUDFILESRETRY, true);
log.info("Loaded %d bytes from [%s] to [%s]", result.size(), path, outDir.getAbsolutePath());
return result;
} catch (Exception e) {
try {
org.apache.commons.io.FileUtils.deleteDirectory(outDir);
} catch (IOException ioe) {
log.warn(
ioe,
"Failed to remove output directory [%s] for segment pulled from [%s]",
outDir.getAbsolutePath(),
path);
}
throw new SegmentLoadingException(e, e.getMessage());
} finally {
try {
byteSource.closeStream();
} catch (IOException ioe) {
log.warn(ioe, "Failed to close payload for segmente pulled from [%s]", path);
}
}
}
@Override
public Map<NamedKey, byte[]> getBulk(Iterable<NamedKey> keys) {
try (ResourceHolder<MemcachedClientIF> clientHolder = client.get()) {
Map<String, NamedKey> keyLookup =
Maps.uniqueIndex(
keys,
new Function<NamedKey, String>() {
@Override
public String apply(@Nullable NamedKey input) {
return computeKeyHash(memcachedPrefix, input);
}
});
Map<NamedKey, byte[]> results = Maps.newHashMap();
BulkFuture<Map<String, Object>> future;
try {
future = clientHolder.get().asyncGetBulk(keyLookup.keySet());
} catch (IllegalStateException e) {
// operation did not get queued in time (queue is full)
errorCount.incrementAndGet();
log.warn(e, "Unable to queue cache operation");
return results;
}
try {
Map<String, Object> some = future.getSome(timeout, TimeUnit.MILLISECONDS);
if (future.isTimeout()) {
future.cancel(false);
timeoutCount.incrementAndGet();
}
missCount.addAndGet(keyLookup.size() - some.size());
hitCount.addAndGet(some.size());
for (Map.Entry<String, Object> entry : some.entrySet()) {
final NamedKey key = keyLookup.get(entry.getKey());
final byte[] value = (byte[]) entry.getValue();
if (value != null) {
results.put(key, deserializeValue(key, value));
}
}
return results;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw Throwables.propagate(e);
} catch (ExecutionException e) {
errorCount.incrementAndGet();
log.warn(e, "Exception pulling item from cache");
return results;
}
}
}
public boolean scheduleAndWait(
final String id, ExtractionNamespace namespace, long waitForFirstRun) {
if (scheduleOrUpdate(id, namespace)) {
log.debug("Scheduled new namespace [%s]: %s", id, namespace);
} else {
log.debug("Namespace [%s] already running: %s", id, namespace);
}
final NamespaceImplData namespaceImplData = implData.get(id);
if (namespaceImplData == null) {
log.warn("NamespaceLookupExtractorFactory[%s] - deleted during start", id);
return false;
}
boolean success = false;
try {
success = namespaceImplData.firstRun.await(waitForFirstRun, TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
log.error(e, "NamespaceLookupExtractorFactory[%s] - interrupted during start", id);
}
if (!success) {
delete(id);
}
return success;
}
private Map<String, Object> buildStringKeyMap(ByteBuffer input) {
Map<String, Object> theMap = Maps.newHashMap();
try {
DynamicMessage message = DynamicMessage.parseFrom(descriptor, ByteString.copyFrom(input));
Map<Descriptors.FieldDescriptor, Object> allFields = message.getAllFields();
for (Map.Entry<Descriptors.FieldDescriptor, Object> entry : allFields.entrySet()) {
String name = entry.getKey().getName();
if (theMap.containsKey(name)) {
continue;
// Perhaps throw an exception here?
// throw new RuntimeException("dupicate key " + name + " in " + message);
}
Object value = entry.getValue();
if (value instanceof Descriptors.EnumValueDescriptor) {
Descriptors.EnumValueDescriptor desc = (Descriptors.EnumValueDescriptor) value;
value = desc.getName();
}
theMap.put(name, value);
}
} catch (InvalidProtocolBufferException e) {
log.warn(e, "Problem with protobuf something");
}
return theMap;
}
@LifecycleStop
public void stop() {
if (log4jShutdown != null) {
log.debug("Shutting down log4j");
log4jShutdown.stop();
} else {
log.warn("Log4j shutdown was registered in lifecycle but no shutdown object exists!");
}
}
@Override
public void newEntry(String name, Map properties) {
synchronized (lock) {
if (currentlyLoading == null) {
log.warn(
"Server[%s] a new entry[%s] appeared, even though nothing is currently loading[%s]",
basePath, name, currentlyLoading);
} else {
if (!name.equals(currentlyLoading.getSegmentIdentifier())) {
log.warn(
"Server[%s] a new entry[%s] appeared that is not the currently loading entry[%s]",
basePath, name, currentlyLoading);
} else {
log.info("Server[%s]'s currently loading entry[%s] appeared.", basePath, name);
}
}
}
}
private static void awaitNextRetry(final Throwable e, final int nTry)
throws InterruptedException {
final long baseSleepMillis = 1000;
final long maxSleepMillis = 60000;
final double fuzzyMultiplier = Math.min(Math.max(1 + 0.2 * new Random().nextGaussian(), 0), 2);
final long sleepMillis =
(long) (Math.min(maxSleepMillis, baseSleepMillis * Math.pow(2, nTry)) * fuzzyMultiplier);
log.warn(e, "Failed on try %d, retrying in %,dms.", nTry, sleepMillis);
Thread.sleep(sleepMillis);
}
@JsonCreator
public RandomFirehoseFactory(
@JsonProperty("sleepUsec") Long sleepUsec,
@JsonProperty("maxGeneratedRows") Long maxGeneratedRows,
@JsonProperty("seed") Long seed,
@JsonProperty("nTokens") Integer nTokens,
@JsonProperty("nPerSleep") Integer nPerSleep) {
long nsec = (sleepUsec > 0) ? sleepUsec * 1000L : 0;
long msec = nsec / 1000000L;
this.delayMsec = msec;
this.delayNsec = (int) (nsec - (msec * 1000000L));
this.maxGeneratedRows = maxGeneratedRows;
this.seed = seed;
this.nTokens = nTokens;
this.nPerSleep = nPerSleep;
if (nTokens <= 0) {
log.warn("nTokens parameter " + nTokens + " ignored; must be greater than or equal to 1");
nTokens = 1;
}
if (nPerSleep <= 0) {
log.warn("nPerSleep parameter " + nPerSleep + " ignored; must be greater than or equal to 1");
nPerSleep = 1;
}
log.info("maxGeneratedRows=" + maxGeneratedRows);
log.info("seed=" + ((seed == 0L) ? "random value" : seed));
log.info("nTokens=" + nTokens);
log.info("nPerSleep=" + nPerSleep);
double dmsec = (double) delayMsec + ((double) this.delayNsec) / 1000000.;
if (dmsec > 0.0) {
log.info("sleep period=" + dmsec + "msec");
log.info(
"approximate max rate of record generation="
+ (nPerSleep * 1000. / dmsec)
+ "/sec"
+ " or "
+ (60. * nPerSleep * 1000. / dmsec)
+ "/minute");
} else {
log.info("sleep period= NONE");
log.info("approximate max rate of record generation= as fast as possible");
}
}
@Override
public void entryRemoved(String name) {
synchronized (lock) {
if (currentlyLoading == null) {
log.warn(
"Server[%s] an entry[%s] was removed even though it wasn't loading!?", basePath, name);
return;
}
if (!name.equals(currentlyLoading.getSegmentIdentifier())) {
log.warn(
"Server[%s] entry [%s] was removed even though it's not what is currently loading[%s]",
basePath, name, currentlyLoading);
return;
}
actionCompleted();
log.info("Server[%s] done processing [%s]", basePath, name);
}
doNext();
}
@Override
public void put(NamedKey key, byte[] value) {
try (final ResourceHolder<MemcachedClientIF> clientHolder = client.get()) {
clientHolder
.get()
.set(computeKeyHash(memcachedPrefix, key), expiration, serializeValue(key, value));
} catch (IllegalStateException e) {
// operation did not get queued in time (queue is full)
errorCount.incrementAndGet();
log.warn(e, "Unable to queue cache operation");
}
}
public static boolean isInstanceReady(ServerDiscoverySelector serviceProvider) {
try {
Server instance = serviceProvider.pick();
if (instance == null) {
LOG.warn("Unable to find a host");
return false;
}
} catch (Exception e) {
LOG.error(e, "Caught exception waiting for host");
return false;
}
return true;
}
private static void recursivelyDelete(final File dir) {
if (dir != null) {
if (dir.isDirectory()) {
final File[] files = dir.listFiles();
if (files != null) {
for (File file : files) {
recursivelyDelete(file);
}
}
} else {
if (!dir.delete()) {
log.warn("Could not delete file at [%s]", dir.getAbsolutePath());
}
}
}
}
public static long zipAndCopyDir(
File baseDir, OutputStream baseOutputStream, Progressable progressable) throws IOException {
long size = 0L;
try (ZipOutputStream outputStream = new ZipOutputStream(baseOutputStream)) {
List<String> filesToCopy = Arrays.asList(baseDir.list());
for (String fileName : filesToCopy) {
final File fileToCopy = new File(baseDir, fileName);
if (java.nio.file.Files.isRegularFile(fileToCopy.toPath())) {
size += copyFileToZipStream(fileToCopy, outputStream, progressable);
} else {
log.warn(
"File at [%s] is not a regular file! skipping as part of zip", fileToCopy.getPath());
}
}
outputStream.flush();
}
return size;
}
public static void createTable(final DBI dbi, final String tableName, final String sql) {
try {
dbi.withHandle(
new HandleCallback<Void>() {
@Override
public Void withHandle(Handle handle) throws Exception {
List<Map<String, Object>> table =
handle.select(String.format("SHOW tables LIKE '%s'", tableName));
if (table.isEmpty()) {
log.info("Creating table[%s]", tableName);
handle.createStatement(sql).execute();
} else {
log.info("Table[%s] existed: [%s]", tableName, table);
}
return null;
}
});
} catch (Exception e) {
log.warn(e, "Exception creating table");
}
}
public void createTable(final String tableName, final Iterable<String> sql) {
try {
retryWithHandle(
new HandleCallback<Void>() {
@Override
public Void withHandle(Handle handle) throws Exception {
if (!tableExists(handle, tableName)) {
log.info("Creating table[%s]", tableName);
final Batch batch = handle.createBatch();
for (String s : sql) {
batch.add(s);
}
batch.execute();
} else {
log.info("Table[%s] already exists", tableName);
}
return null;
}
});
} catch (Exception e) {
log.warn(e, "Exception creating table");
}
}
public void stop() {
synchronized (handlers) {
List<Exception> exceptions = Lists.newArrayList();
for (Stage stage : Lists.reverse(stagesOrdered())) {
final CopyOnWriteArrayList<Handler> stageHandlers = handlers.get(stage);
final ListIterator<Handler> iter = stageHandlers.listIterator(stageHandlers.size());
while (iter.hasPrevious()) {
final Handler handler = iter.previous();
try {
handler.stop();
} catch (Exception e) {
log.warn(e, "exception thrown when stopping %s", handler);
exceptions.add(e);
}
}
}
started.set(false);
if (!exceptions.isEmpty()) {
throw Throwables.propagate(exceptions.get(0));
}
}
}
// For testing purposes this is protected
protected <T extends ExtractionNamespace> ListenableFuture<?> schedule(
final String id,
final T namespace,
final ExtractionNamespaceCacheFactory<T> factory,
final Runnable postRunnable,
final String cacheId) {
log.debug("Trying to update namespace [%s]", id);
final NamespaceImplData implDatum = implData.get(id);
if (implDatum != null) {
synchronized (implDatum.enabled) {
if (implDatum.enabled.get()) {
// We also check at the end of the function, but fail fast here
throw new IAE(
"Namespace [%s] already exists! Leaving prior running", namespace.toString());
}
}
}
final long updateMs = namespace.getPollMs();
final CountDownLatch startLatch = new CountDownLatch(1);
final Runnable command =
new Runnable() {
@Override
public void run() {
try {
startLatch.await(); // wait for "election" to leadership or cancellation
if (!Thread.currentThread().isInterrupted()) {
final Map<String, String> cache = getCacheMap(cacheId);
final String preVersion = lastVersion.get(id);
final Callable<String> runnable =
factory.getCachePopulator(id, namespace, preVersion, cache);
tasksStarted.incrementAndGet();
final String newVersion = runnable.call();
if (preVersion != null && preVersion.equals(newVersion)) {
throw new CancellationException(
String.format("Version `%s` already exists", preVersion));
}
if (newVersion != null) {
lastVersion.put(id, newVersion);
}
postRunnable.run();
log.debug("Namespace [%s] successfully updated", id);
}
} catch (Throwable t) {
delete(cacheId);
if (t instanceof CancellationException) {
log.debug(t, "Namespace [%s] cancelled", id);
} else {
log.error(t, "Failed update namespace [%s]", namespace);
}
if (Thread.currentThread().isInterrupted()) {
throw Throwables.propagate(t);
}
}
}
};
ListenableFuture<?> future;
try {
if (updateMs > 0) {
future =
listeningScheduledExecutorService.scheduleAtFixedRate(
command, 0, updateMs, TimeUnit.MILLISECONDS);
} else {
future = listeningScheduledExecutorService.schedule(command, 0, TimeUnit.MILLISECONDS);
}
final NamespaceImplData me = new NamespaceImplData(future, namespace, id);
final NamespaceImplData other = implData.putIfAbsent(id, me);
if (other != null) {
if (!future.isDone() && !future.cancel(true)) {
log.warn("Unable to cancel future for namespace[%s] on race loss", id);
}
throw new IAE("Namespace [%s] already exists! Leaving prior running", namespace);
} else {
if (!me.enabled.compareAndSet(false, true)) {
log.wtf("How did someone enable this before ME?");
}
log.debug("I own namespace [%s]", id);
return future;
}
} finally {
startLatch.countDown();
}
}
public List<DataSegment> run() throws IOException {
final JobConf jobConf = new JobConf();
jobConf.setKeepFailedTaskFiles(false);
for (Map.Entry<String, String> entry : converterConfig.getHadoopProperties().entrySet()) {
jobConf.set(entry.getKey(), entry.getValue(), "converterConfig.getHadoopProperties()");
}
final List<DataSegment> segments = converterConfig.getSegments();
if (segments.isEmpty()) {
throw new IAE("No segments found for datasource [%s]", converterConfig.getDataSource());
}
converterConfigIntoConfiguration(converterConfig, segments, jobConf);
jobConf.setNumReduceTasks(0); // Map only. Number of map tasks determined by input format
jobConf.setWorkingDirectory(new Path(converterConfig.getDistributedSuccessCache()));
setJobName(jobConf, segments);
if (converterConfig.getJobPriority() != null) {
jobConf.setJobPriority(JobPriority.valueOf(converterConfig.getJobPriority()));
}
final Job job = Job.getInstance(jobConf);
job.setInputFormatClass(ConfigInputFormat.class);
job.setMapperClass(ConvertingMapper.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(Text.class);
job.setMapSpeculativeExecution(false);
job.setOutputFormatClass(ConvertingOutputFormat.class);
JobHelper.setupClasspath(
JobHelper.distributedClassPath(jobConf.getWorkingDirectory()),
JobHelper.distributedClassPath(
getJobClassPathDir(job.getJobName(), jobConf.getWorkingDirectory())),
job);
Throwable throwable = null;
try {
job.submit();
log.info("Job %s submitted, status available at %s", job.getJobName(), job.getTrackingURL());
final boolean success = job.waitForCompletion(true);
if (!success) {
final TaskReport[] reports = job.getTaskReports(TaskType.MAP);
if (reports != null) {
for (final TaskReport report : reports) {
log.error(
"Error in task [%s] : %s",
report.getTaskId(), Arrays.toString(report.getDiagnostics()));
}
}
return null;
}
try {
loadedBytes = job.getCounters().findCounter(COUNTER_GROUP, COUNTER_LOADED).getValue();
writtenBytes = job.getCounters().findCounter(COUNTER_GROUP, COUNTER_WRITTEN).getValue();
} catch (IOException ex) {
log.error(ex, "Could not fetch counters");
}
final JobID jobID = job.getJobID();
final Path jobDir = getJobPath(jobID, job.getWorkingDirectory());
final FileSystem fs = jobDir.getFileSystem(job.getConfiguration());
final RemoteIterator<LocatedFileStatus> it = fs.listFiles(jobDir, true);
final List<Path> goodPaths = new ArrayList<>();
while (it.hasNext()) {
final LocatedFileStatus locatedFileStatus = it.next();
if (locatedFileStatus.isFile()) {
final Path myPath = locatedFileStatus.getPath();
if (ConvertingOutputFormat.DATA_SUCCESS_KEY.equals(myPath.getName())) {
goodPaths.add(new Path(myPath.getParent(), ConvertingOutputFormat.DATA_FILE_KEY));
}
}
}
if (goodPaths.isEmpty()) {
log.warn("No good data found at [%s]", jobDir);
return null;
}
final List<DataSegment> returnList =
ImmutableList.copyOf(
Lists.transform(
goodPaths,
new Function<Path, DataSegment>() {
@Nullable
@Override
public DataSegment apply(final Path input) {
try {
if (!fs.exists(input)) {
throw new ISE(
"Somehow [%s] was found but [%s] is missing at [%s]",
ConvertingOutputFormat.DATA_SUCCESS_KEY,
ConvertingOutputFormat.DATA_FILE_KEY,
jobDir);
}
} catch (final IOException e) {
throw Throwables.propagate(e);
}
try (final InputStream stream = fs.open(input)) {
return HadoopDruidConverterConfig.jsonMapper.readValue(
stream, DataSegment.class);
} catch (final IOException e) {
throw Throwables.propagate(e);
}
}
}));
if (returnList.size() == segments.size()) {
return returnList;
} else {
throw new ISE(
"Tasks reported success but result length did not match! Expected %d found %d at path [%s]",
segments.size(), returnList.size(), jobDir);
}
} catch (InterruptedException | ClassNotFoundException e) {
RuntimeException exception = Throwables.propagate(e);
throwable = exception;
throw exception;
} catch (Throwable t) {
throwable = t;
throw t;
} finally {
try {
cleanup(job);
} catch (IOException e) {
if (throwable != null) {
throwable.addSuppressed(e);
} else {
log.error(e, "Could not clean up job [%s]", job.getJobID());
}
}
}
}
@Override
protected void map(String key, String value, final Context context)
throws IOException, InterruptedException {
final InputSplit split = context.getInputSplit();
if (!(split instanceof DatasourceInputSplit)) {
throw new IAE(
"Unexpected split type. Expected [%s] was [%s]",
DatasourceInputSplit.class.getCanonicalName(), split.getClass().getCanonicalName());
}
final String tmpDirLoc = context.getConfiguration().get(TMP_FILE_LOC_KEY);
final File tmpDir = Paths.get(tmpDirLoc).toFile();
final DataSegment segment =
Iterables.getOnlyElement(((DatasourceInputSplit) split).getSegments()).getSegment();
final HadoopDruidConverterConfig config =
converterConfigFromConfiguration(context.getConfiguration());
context.setStatus("DOWNLOADING");
context.progress();
final Path inPath = new Path(JobHelper.getURIFromSegment(segment));
final File inDir = new File(tmpDir, "in");
if (inDir.exists() && !inDir.delete()) {
log.warn("Could not delete [%s]", inDir);
}
if (!inDir.mkdir() && (!inDir.exists() || inDir.isDirectory())) {
log.warn("Unable to make directory");
}
final long inSize =
JobHelper.unzipNoGuava(inPath, context.getConfiguration(), inDir, context);
log.debug("Loaded %d bytes into [%s] for converting", inSize, inDir.getAbsolutePath());
context.getCounter(COUNTER_GROUP, COUNTER_LOADED).increment(inSize);
context.setStatus("CONVERTING");
context.progress();
final File outDir = new File(tmpDir, "out");
if (!outDir.mkdir() && (!outDir.exists() || !outDir.isDirectory())) {
throw new IOException(String.format("Could not create output directory [%s]", outDir));
}
HadoopDruidConverterConfig.INDEX_MERGER.convert(
inDir, outDir, config.getIndexSpec(), JobHelper.progressIndicatorForContext(context));
if (config.isValidate()) {
context.setStatus("Validating");
HadoopDruidConverterConfig.INDEX_IO.validateTwoSegments(inDir, outDir);
}
context.progress();
context.setStatus("Starting PUSH");
final Path baseOutputPath = new Path(config.getSegmentOutputPath());
final FileSystem outputFS = baseOutputPath.getFileSystem(context.getConfiguration());
final DataSegment finalSegmentTemplate =
segment.withVersion(segment.getVersion() + "_converted");
final DataSegment finalSegment =
JobHelper.serializeOutIndex(
finalSegmentTemplate,
context.getConfiguration(),
context,
context.getTaskAttemptID(),
outDir,
JobHelper.makeSegmentOutputPath(baseOutputPath, outputFS, finalSegmentTemplate));
context.progress();
context.setStatus("Finished PUSH");
final String finalSegmentString =
HadoopDruidConverterConfig.jsonMapper.writeValueAsString(finalSegment);
context
.getConfiguration()
.set(ConvertingOutputFormat.PUBLISHED_SEGMENT_KEY, finalSegmentString);
context.write(new Text("dataSegment"), new Text(finalSegmentString));
context.getCounter(COUNTER_GROUP, COUNTER_WRITTEN).increment(finalSegment.getSize());
context.progress();
context.setStatus("Ready To Commit");
}
@Override
public Sequence<T> run(final Query<T> queryParam) {
final GroupByQuery query = (GroupByQuery) queryParam;
final Pair<IncrementalIndex, Accumulator<IncrementalIndex, T>> indexAccumulatorPair =
GroupByQueryHelper.createIndexAccumulatorPair(query, configSupplier.get());
final Pair<List, Accumulator<List, T>> bySegmentAccumulatorPair =
GroupByQueryHelper.createBySegmentAccumulatorPair();
final boolean bySegment = query.getContextBySegment(false);
final int priority = query.getContextPriority(0);
if (Iterables.isEmpty(queryables)) {
log.warn("No queryables found.");
}
ListenableFuture<List<Void>> futures =
Futures.allAsList(
Lists.newArrayList(
Iterables.transform(
queryables,
new Function<QueryRunner<T>, ListenableFuture<Void>>() {
@Override
public ListenableFuture<Void> apply(final QueryRunner<T> input) {
return exec.submit(
new AbstractPrioritizedCallable<Void>(priority) {
@Override
public Void call() throws Exception {
try {
if (bySegment) {
input
.run(queryParam)
.accumulate(
bySegmentAccumulatorPair.lhs,
bySegmentAccumulatorPair.rhs);
} else {
input
.run(queryParam)
.accumulate(
indexAccumulatorPair.lhs, indexAccumulatorPair.rhs);
}
return null;
} catch (QueryInterruptedException e) {
throw Throwables.propagate(e);
} catch (Exception e) {
log.error(e, "Exception with one of the sequences!");
throw Throwables.propagate(e);
}
}
});
}
})));
// Let the runners complete
try {
queryWatcher.registerQuery(query, futures);
final Number timeout = query.getContextValue("timeout", (Number) null);
if (timeout == null) {
futures.get();
} else {
futures.get(timeout.longValue(), TimeUnit.MILLISECONDS);
}
} catch (InterruptedException e) {
log.warn(e, "Query interrupted, cancelling pending results, query id [%s]", query.getId());
futures.cancel(true);
throw new QueryInterruptedException("Query interrupted");
} catch (CancellationException e) {
throw new QueryInterruptedException("Query cancelled");
} catch (TimeoutException e) {
log.info("Query timeout, cancelling pending results for query id [%s]", query.getId());
futures.cancel(true);
throw new QueryInterruptedException("Query timeout");
} catch (ExecutionException e) {
throw Throwables.propagate(e.getCause());
}
if (bySegment) {
return Sequences.simple(bySegmentAccumulatorPair.lhs);
}
return Sequences.simple(
Iterables.transform(
indexAccumulatorPair.lhs.iterableWithPostAggregations(null),
new Function<Row, T>() {
@Override
public T apply(Row input) {
return (T) input;
}
}));
}
@Override
public void getSegmentFiles(final DataSegment segment, final File outDir)
throws SegmentLoadingException {
final S3Coords s3Coords = new S3Coords(segment);
log.info("Pulling index at path[%s] to outDir[%s]", s3Coords, outDir);
if (!isObjectInBucket(s3Coords)) {
throw new SegmentLoadingException("IndexFile[%s] does not exist.", s3Coords);
}
if (!outDir.exists()) {
outDir.mkdirs();
}
if (!outDir.isDirectory()) {
throw new ISE("outDir[%s] must be a directory.", outDir);
}
try {
S3Utils.retryS3Operation(
new Callable<Void>() {
@Override
public Void call() throws Exception {
long startTime = System.currentTimeMillis();
S3Object s3Obj = null;
try {
s3Obj = s3Client.getObject(s3Coords.bucket, s3Coords.path);
try (InputStream in = s3Obj.getDataInputStream()) {
final String key = s3Obj.getKey();
if (key.endsWith(".zip")) {
CompressionUtils.unzip(in, outDir);
} else if (key.endsWith(".gz")) {
final File outFile = new File(outDir, toFilename(key, ".gz"));
ByteStreams.copy(
new GZIPInputStream(in), Files.newOutputStreamSupplier(outFile));
} else {
ByteStreams.copy(
in, Files.newOutputStreamSupplier(new File(outDir, toFilename(key, ""))));
}
log.info(
"Pull of file[%s] completed in %,d millis",
s3Obj, System.currentTimeMillis() - startTime);
return null;
} catch (IOException e) {
throw new IOException(
String.format("Problem decompressing object[%s]", s3Obj), e);
}
} finally {
S3Utils.closeStreamsQuietly(s3Obj);
}
}
});
} catch (Exception e) {
try {
FileUtils.deleteDirectory(outDir);
} catch (IOException ioe) {
log.warn(
ioe,
"Failed to remove output directory for segment[%s] after exception: %s",
segment.getIdentifier(),
outDir);
}
throw new SegmentLoadingException(e, e.getMessage());
}
}
