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HBase >> mail # user >> Should we set the property "hbase.local.dir" to a list of directories on different disks to spread I/O?


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答复: 答复: Should we set the property "hbase.local.dir" to a list of directories on different disks to spread I/O?
maybe you have a misunderstanding about "hbase.local.dir", please refer to HBASE-6824 for why it was introduced.

Thanks,
________________________________________
发件人: Tao Xiao [[EMAIL PROTECTED]]
发送时间: 2013年12月20日 16:30
收件人: user
主题: Re: 答复: Should we set the property "hbase.local.dir" to a list of directories on different disks to spread I/O?

Since "hbase.local.dir" specifes local directory, why doesn't it specify
multiple directories on different disks to spread I/O, just as what
"dfs.datanode.data.dir" does ?
2013/12/20 谢良 <[EMAIL PROTECTED]>

> Please take a look at "dfs.datanode.data.dir" in hdfs-site.xml.
> P.S. "hbase.local.dir" supports one dir only, don't specify it with a
> list:)
>
> Thanks,
> ________________________________________
> 发件人: Tao Xiao [[EMAIL PROTECTED]]
> 发送时间: 2013年12月20日 15:11
> 收件人: user
> 主题: Should we set the property "hbase.local.dir" to a list of directories
> on different disks to spread I/O?
>
> Hi,
>
>     To spread I/O on multiple disks of the HBase cluster, I set the
> property "hbase.local.dir"  in hbase-site.xml to a comma-separated list of
> directories on different disks as follows:
>
>      <property>
>                 <name>hbase.local.dir</name>
>
>
> <value>/storage/disk1/hbase.local.dir,/storage/disk2/hbase.local.dir,/storage/disk3/hbase.local.dir</value>
>       </property>
>
> is it right ?
>