hdfs - How can i set the map chunk size in hadoop? -

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i know default size of chunks in hadoop 64 mb. want change it. how can this? thanks

in hadoop version 1.0 default size 64mb , in version 2.0 default size 128mb. if want change block size go hdfs-site.xml file , add following property

<property>      <name>dfs.block.size<name>      <value>134217728<value>      <description>block size<description>  <property>

note: should mention size in bits.for example : 134217728 bits = 128 mb.

for further query go link (extra)

change block size of existing files in hadoop


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