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https://issues.apache.org/jira/browse/HADOOP-16267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
bd2019us updated HADOOP-16267:
------------------------------
Description:
Performance gain if you use replace() instead of replaceAll() for replacing
patterns that do not use a regex. This happens because replace() does not need
to compile the regex pattern like replaceAll() does.
Affected files:
*
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyCommitter.java
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/state/Graph.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/PrintJarMainClass.java
was:
Performance gain if you use replace() instead of replaceAll() for replacing
patterns that do not use a regex. This happens because replace() does not need
to compile the regex pattern like replaceAll() does.
Affected files:
*
hadoop-common/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyCommitter.java
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/state/Graph.java
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/state/Graph.java
> Performance gain if you use replace() instead of replaceAll() for replacing
> patterns that do not use a regex
> -------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-16267
> URL: https://issues.apache.org/jira/browse/HADOOP-16267
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: bd2019us
> Priority: Minor
> Labels: pull-request-available
>
> Performance gain if you use replace() instead of replaceAll() for replacing
> patterns that do not use a regex. This happens because replace() does not
> need to compile the regex pattern like replaceAll() does.
> Affected files:
> *
> hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyCommitter.java
> *
> hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/state/Graph.java
> *
> hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/PrintJarMainClass.java
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