@VisibleForTesting
Fetcher(
JobConf job,
TaskAttemptID reduceId,
ShuffleSchedulerImpl<K, V> scheduler,
MergeManager<K, V> merger,
Reporter reporter,
ShuffleClientMetrics metrics,
ExceptionReporter exceptionReporter,
SecretKey shuffleKey,
int id) {
this.jobConf = job;
this.reporter = reporter;
this.scheduler = scheduler;
this.merger = merger;
this.metrics = metrics;
this.exceptionReporter = exceptionReporter;
this.id = id;
this.reduce = reduceId.getTaskID().getId();
this.shuffleSecretKey = shuffleKey;
ioErrs = reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.IO_ERROR.toString());
wrongLengthErrs =
reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_LENGTH.toString());
badIdErrs = reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.BAD_ID.toString());
wrongMapErrs = reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_MAP.toString());
connectionErrs = reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.CONNECTION.toString());
wrongReduceErrs =
reporter.getCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_REDUCE.toString());
this.connectionTimeout =
job.getInt(MRJobConfig.SHUFFLE_CONNECT_TIMEOUT, DEFAULT_STALLED_COPY_TIMEOUT);
this.readTimeout = job.getInt(MRJobConfig.SHUFFLE_READ_TIMEOUT, DEFAULT_READ_TIMEOUT);
setName("fetcher#" + id);
setDaemon(true);
synchronized (Fetcher.class) {
sslShuffle =
job.getBoolean(MRConfig.SHUFFLE_SSL_ENABLED_KEY, MRConfig.SHUFFLE_SSL_ENABLED_DEFAULT);
if (sslShuffle && sslFactory == null) {
sslFactory = new SSLFactory(SSLFactory.Mode.CLIENT, job);
try {
sslFactory.init();
} catch (Exception ex) {
sslFactory.destroy();
throw new RuntimeException(ex);
}
}
}
}
public Fetcher(
Configuration job,
ShuffleScheduler scheduler,
MergeManager merger,
ShuffleClientMetrics metrics,
Shuffle shuffle,
SecretKey jobTokenSecret,
TezInputContext inputContext)
throws IOException {
this.job = job;
this.scheduler = scheduler;
this.merger = merger;
this.metrics = metrics;
this.shuffle = shuffle;
this.id = ++nextId;
this.jobTokenSecret = jobTokenSecret;
ioErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.IO_ERROR.toString());
wrongLengthErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_LENGTH.toString());
badIdErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.BAD_ID.toString());
wrongMapErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_MAP.toString());
connectionErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.CONNECTION.toString());
wrongReduceErrs =
inputContext
.getCounters()
.findCounter(SHUFFLE_ERR_GRP_NAME, ShuffleErrors.WRONG_REDUCE.toString());
if (ConfigUtils.isIntermediateInputCompressed(job)) {
Class<? extends CompressionCodec> codecClass =
ConfigUtils.getIntermediateInputCompressorClass(job, DefaultCodec.class);
codec = ReflectionUtils.newInstance(codecClass, job);
decompressor = CodecPool.getDecompressor(codec);
} else {
codec = null;
decompressor = null;
}
this.connectionTimeout =
job.getInt(
TezJobConfig.TEZ_RUNTIME_SHUFFLE_CONNECT_TIMEOUT,
TezJobConfig.DEFAULT_TEZ_RUNTIME_SHUFFLE_STALLED_COPY_TIMEOUT);
this.readTimeout =
job.getInt(
TezJobConfig.TEZ_RUNTIME_SHUFFLE_READ_TIMEOUT,
TezJobConfig.DEFAULT_TEZ_RUNTIME_SHUFFLE_READ_TIMEOUT);
setName("fetcher#" + id);
setDaemon(true);
synchronized (Fetcher.class) {
sslShuffle =
job.getBoolean(
TezJobConfig.TEZ_RUNTIME_SHUFFLE_ENABLE_SSL,
TezJobConfig.DEFAULT_TEZ_RUNTIME_SHUFFLE_ENABLE_SSL);
if (sslShuffle && sslFactory == null) {
sslFactory = new SSLFactory(SSLFactory.Mode.CLIENT, job);
try {
sslFactory.init();
} catch (Exception ex) {
sslFactory.destroy();
throw new RuntimeException(ex);
}
}
}
}