Gera Shegalov created MAPREDUCE-6793:
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Summary: io.sort.factor code default and mapred-default.xml values
inconsistent
Key: MAPREDUCE-6793
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6793
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: task
Affects Versions: 3.0.0-alpha1, 2.6.5
Reporter: Gera Shegalov
Priority: Trivial
The actual default value in mapred-default.xml:
{code}
<property>
<name>mapreduce.task.io.sort.factor</name>
<value>10</value>
<description>The number of streams to merge at once while sorting
files. This determines the number of open file handles.</description>
</property>
{code}
However, MapTask and MergeManagerImpl, are coded with:
{code}
int mergeFactor = job.getInt(JobContext.IO_SORT_FACTOR, 100);
{code}
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