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Posted to issues@tez.apache.org by "Jonathan Turner Eagles (Jira)" <ji...@apache.org> on 2020/07/17 17:21:00 UTC

[jira] [Assigned] (TEZ-4133) key class implements writableComparable and configurable use default configuration

     [ https://issues.apache.org/jira/browse/TEZ-4133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Turner Eagles reassigned TEZ-4133:
-------------------------------------------

    Assignee: wang qiang

> key class implements 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
>            Assignee: wang qiang
>            Priority: Major
>         Attachments: TEZ-4133-1.patch
>
>
> 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}
> //org.apache.tez.runtime.library.common.ConfigUtils#getIntermediateOutputKeyComparator
> 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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