You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-user@hadoop.apache.org by Azuryy Yu <az...@gmail.com> on 2013/02/17 09:55:21 UTC
QJM deployment
Hi,
who can kindly make 2.0.3-alpha QJM deployment document more better, I
cannot understand it successfully, thanks.
such as :
1) by running the command "*hdfs namenode -bootstrapStandby*" on the
unformatted NameNode
- - it should be start formatted namenode firstly.
2) If you are converting a non-HA NameNode to be HA, you should run the
command "*hdfs -initializeSharedEdits*", which will initialize the
JournalNodes with the edits data from the local NameNode edits directories.
-- run this command on which node? and does that this command exists?
QJM "Deployment details" section is bad....
Re: QJM deployment
Posted by Harsh J <ha...@cloudera.com>.
Hi Azuryy,
Thanks for your feedback on the docs! I've filed
https://issues.apache.org/jira/browse/HDFS-4508 on your behalf to
address them. Feel free to file JIRA with documentation complaints
with change patches to have them improved yourself :)
On Sun, Feb 17, 2013 at 2:25 PM, Azuryy Yu <az...@gmail.com> wrote:
> Hi,
>
> who can kindly make 2.0.3-alpha QJM deployment document more better, I
> cannot understand it successfully, thanks.
>
> such as :
> 1) by running the command "hdfs namenode -bootstrapStandby" on the
> unformatted NameNode
>
> - - it should be start formatted namenode firstly.
> 2) If you are converting a non-HA NameNode to be HA, you should run the
> command "hdfs -initializeSharedEdits", which will initialize the
> JournalNodes with the edits data from the local NameNode edits directories.
>
> -- run this command on which node? and does that this command exists?
>
>
> QJM "Deployment details" section is bad....
>
>
--
Harsh J
Re: QJM deployment
Posted by Harsh J <ha...@cloudera.com>.
Hi Azuryy,
Thanks for your feedback on the docs! I've filed
https://issues.apache.org/jira/browse/HDFS-4508 on your behalf to
address them. Feel free to file JIRA with documentation complaints
with change patches to have them improved yourself :)
On Sun, Feb 17, 2013 at 2:25 PM, Azuryy Yu <az...@gmail.com> wrote:
> Hi,
>
> who can kindly make 2.0.3-alpha QJM deployment document more better, I
> cannot understand it successfully, thanks.
>
> such as :
> 1) by running the command "hdfs namenode -bootstrapStandby" on the
> unformatted NameNode
>
> - - it should be start formatted namenode firstly.
> 2) If you are converting a non-HA NameNode to be HA, you should run the
> command "hdfs -initializeSharedEdits", which will initialize the
> JournalNodes with the edits data from the local NameNode edits directories.
>
> -- run this command on which node? and does that this command exists?
>
>
> QJM "Deployment details" section is bad....
>
>
--
Harsh J
Re: QJM deployment
Posted by Harsh J <ha...@cloudera.com>.
Hi Azuryy,
Thanks for your feedback on the docs! I've filed
https://issues.apache.org/jira/browse/HDFS-4508 on your behalf to
address them. Feel free to file JIRA with documentation complaints
with change patches to have them improved yourself :)
On Sun, Feb 17, 2013 at 2:25 PM, Azuryy Yu <az...@gmail.com> wrote:
> Hi,
>
> who can kindly make 2.0.3-alpha QJM deployment document more better, I
> cannot understand it successfully, thanks.
>
> such as :
> 1) by running the command "hdfs namenode -bootstrapStandby" on the
> unformatted NameNode
>
> - - it should be start formatted namenode firstly.
> 2) If you are converting a non-HA NameNode to be HA, you should run the
> command "hdfs -initializeSharedEdits", which will initialize the
> JournalNodes with the edits data from the local NameNode edits directories.
>
> -- run this command on which node? and does that this command exists?
>
>
> QJM "Deployment details" section is bad....
>
>
--
Harsh J
Re: QJM deployment
Posted by Harsh J <ha...@cloudera.com>.
Hi Azuryy,
Thanks for your feedback on the docs! I've filed
https://issues.apache.org/jira/browse/HDFS-4508 on your behalf to
address them. Feel free to file JIRA with documentation complaints
with change patches to have them improved yourself :)
On Sun, Feb 17, 2013 at 2:25 PM, Azuryy Yu <az...@gmail.com> wrote:
> Hi,
>
> who can kindly make 2.0.3-alpha QJM deployment document more better, I
> cannot understand it successfully, thanks.
>
> such as :
> 1) by running the command "hdfs namenode -bootstrapStandby" on the
> unformatted NameNode
>
> - - it should be start formatted namenode firstly.
> 2) If you are converting a non-HA NameNode to be HA, you should run the
> command "hdfs -initializeSharedEdits", which will initialize the
> JournalNodes with the edits data from the local NameNode edits directories.
>
> -- run this command on which node? and does that this command exists?
>
>
> QJM "Deployment details" section is bad....
>
>
--
Harsh J