本文整理匯總了Java中org.apache.hadoop.mapred.JobConf.getUseNewMapper方法的典型用法代碼示例。如果您正苦於以下問題：Java JobConf.getUseNewMapper方法的具體用法？Java JobConf.getUseNewMapper怎麽用？Java JobConf.getUseNewMapper使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.mapred.JobConf的用法示例。
在下文中一共展示了JobConf.getUseNewMapper方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: checkSpecs
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
private void checkSpecs(Job job) throws ClassNotFoundException,
InterruptedException, IOException {
JobConf jConf = (JobConf)job.getConfiguration();
// Check the output specification
if (jConf.getNumReduceTasks() == 0 ?
jConf.getUseNewMapper() : jConf.getUseNewReducer()) {
org.apache.hadoop.mapreduce.OutputFormat<?, ?> output =
ReflectionUtils.newInstance(job.getOutputFormatClass(),
job.getConfiguration());
output.checkOutputSpecs(job);
} else {
jConf.getOutputFormat().checkOutputSpecs(jtFs, jConf);
}
}
示例2: writeSplits
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
private int writeSplits(org.apache.hadoop.mapreduce.JobContext job,
Path jobSubmitDir) throws IOException,
InterruptedException, ClassNotFoundException {
JobConf jConf = (JobConf)job.getConfiguration();
int maps;
if (jConf.getUseNewMapper()) {
maps = writeNewSplits(job, jobSubmitDir);
} else {
maps = writeOldSplits(jConf, jobSubmitDir);
}
return maps;
}