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Posted to dev@tez.apache.org by "wang qiang (Jira)" <ji...@apache.org> on 2020/03/10 02:02:00 UTC
[jira] [Created] (TEZ-4133) key class implments writableComparable
and configurable use default configuration
wang qiang created TEZ-4133:
-------------------------------
Summary: key class implments writableComparable and configurable use default configuration
Key: TEZ-4133
URL: https://issues.apache.org/jira/browse/TEZ-4133
Project: Apache Tez
Issue Type: Bug
Reporter: wang qiang
key class implments writableComparable and configurable ,setConf be invoked with a default configuration,it should like mapreduce(org.apache.hadoop.mapred.JobConf#getOutputKeyComparator)
{code:java}
//代码占位符
public static <K> RawComparator<K> getIntermediateOutputKeyComparator(Configuration conf) {
Class<? extends RawComparator> theClass = conf.getClass(
TezRuntimeConfiguration.TEZ_RUNTIME_KEY_COMPARATOR_CLASS, null,
RawComparator.class);
if (theClass != null)
return ReflectionUtils.newInstance(theClass, conf);
// aybe change to
// return WritableComparator.get(getIntermediateOutputKeyClass(conf).asSubclass( //WritableComparable.class),conf);
return WritableComparator.get(getIntermediateOutputKeyClass(conf).asSubclass(
WritableComparable.class));
}
public static <K> RawComparator<K> getIntermediateInputKeyComparator(Configuration conf) {
Class<? extends RawComparator> theClass = conf.getClass(
TezRuntimeConfiguration.TEZ_RUNTIME_KEY_COMPARATOR_CLASS, null,
RawComparator.class);
if (theClass != null)
return ReflectionUtils.newInstance(theClass, conf);
// maybe change to
// return WritableComparator.get(getIntermediateInputKeyClass(conf).asSubclass( //WritableComparable.class),conf);
return WritableComparator.get(getIntermediateInputKeyClass(conf).asSubclass(
WritableComparable.class));
}
{code}
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