hadoop2.2.0 core-site.xml--Kosmos File System

原创于 2014-05-03 14:24:45 发布 · 459 阅读

CC 4.0 BY-SA版权

本文详细介绍了Kosmos文件系统的配置参数，包括stream-buffer-size、bytes-per-checksum、client-write-packet-size、blocksize、replication等，旨在帮助用户优化文件系统性能。

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<property>
  <name>kfs.stream-buffer-size</name>
  <value>4096</value>
  <description>The size of buffer to stream files.
  The size of this buffer should probably be a multiple of hardware
  page size (4096 on Intel x86), and it determines how much data is
  buffered during read and write operations.</description>
</property>

<property>
  <name>kfs.bytes-per-checksum</name>
  <value>512</value>
  <description>The number of bytes per checksum.  Must not be larger than
  kfs.stream-buffer-size</description>
</property>

<property>
  <name>kfs.client-write-packet-size</name>
  <value>65536</value>
  <description>Packet size for clients to write</description>
</property>

<property>
  <name>kfs.blocksize</name>
  <value>67108864</value>
  <description>Block size</description>
</property>

<property>
  <name>kfs.replication</name>
  <value>3</value>
  <description>Replication factor</description>
</property>