hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Harsh J <ha...@cloudera.com>
Subject Re: How to monitor HDFS upgrade status after removal of "dfsadmin -upgradeProgress status" command?
Date Sun, 17 Feb 2013 19:49:09 GMT
Hi Scott,

Is your goal to monitor the metadata upgrade? It can be checked on the web UI.

Before finalization, you can see a message on the top banner on the NN
frontpage such as:

"Upgrade for version -40 is in progress. Status = 94% has been
completed. Upgrade is not finalized."

After the upgrade procedure completes, its "Upgrade for version -40
has been completed. Upgrade is not finalized."

At which point you can check for operational stability and issue a
finalize to make the upgrade permanent.

Does this help? Is there anything else you'd like to see?

On Sun, Feb 3, 2013 at 2:26 AM, Scott Forman <lsforman.931@gmail.com> wrote:
> Hi,
> I am resending this mail, as it appears it never made it to the hdfs-dev mailing list.
> I see that the dfsadmin command, -upgradeProgress, has been removed as part of HDFS-2686
(https://issues.apache.org/jira/browse/HDFS-2686).  So I am wondering if there is another
command that can be used to determine the upgrade status.
> I believe a script could be written to determine the upgrade status by looking to see
if the namenode is running with  either the upgrade or finalize flag, and to check if there
is a previous directory under dfs.name.dir.  But I am wondering if there is an existing method.
> Thanks,
> Scott

Harsh J

View raw message