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Posted to user@hadoop.apache.org by dl...@comcast.net on 2015/01/26 21:16:56 UTC
NN questions
If multiple directories are specified for dfs.namenode.name.dir and dfs.namenode.edits.dir, are the writes to the different directories done in parallel or serial?
Does dfs.namenode.shared.edits.dir support multiple directories like the properties above?
Thanks,
Dave
Re: NN questions
Posted by Ahmed Ossama <ah...@aossama.com>.
Writes are done in parallel.
Yes, dfs.namenode.shared.edits.dir support multiple directories.
On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote:
> If multiple directories are specified for dfs.namenode.name.dir and
> dfs.namenode.edits.dir, are the writes to the different directories
> done in parallel or serial?
>
> Does dfs.namenode.shared.edits.dir support multiple directories like
> the properties above?
>
> Thanks,
> Dave
--
Regards,
Ahmed Ossama
Re: NN questions
Posted by Ahmed Ossama <ah...@aossama.com>.
Writes are done in parallel.
Yes, dfs.namenode.shared.edits.dir support multiple directories.
On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote:
> If multiple directories are specified for dfs.namenode.name.dir and
> dfs.namenode.edits.dir, are the writes to the different directories
> done in parallel or serial?
>
> Does dfs.namenode.shared.edits.dir support multiple directories like
> the properties above?
>
> Thanks,
> Dave
--
Regards,
Ahmed Ossama
Re: NN questions
Posted by Ahmed Ossama <ah...@aossama.com>.
Writes are done in parallel.
Yes, dfs.namenode.shared.edits.dir support multiple directories.
On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote:
> If multiple directories are specified for dfs.namenode.name.dir and
> dfs.namenode.edits.dir, are the writes to the different directories
> done in parallel or serial?
>
> Does dfs.namenode.shared.edits.dir support multiple directories like
> the properties above?
>
> Thanks,
> Dave
--
Regards,
Ahmed Ossama
Re: NN questions
Posted by Ahmed Ossama <ah...@aossama.com>.
Writes are done in parallel.
Yes, dfs.namenode.shared.edits.dir support multiple directories.
On 01/26/2015 10:16 PM, dlmarion@comcast.net wrote:
> If multiple directories are specified for dfs.namenode.name.dir and
> dfs.namenode.edits.dir, are the writes to the different directories
> done in parallel or serial?
>
> Does dfs.namenode.shared.edits.dir support multiple directories like
> the properties above?
>
> Thanks,
> Dave
--
Regards,
Ahmed Ossama