Scott Forman 2013-02-02, 20:56
-Re: How to monitor HDFS upgrade status after removal of "dfsadmin -upgradeProgress status" command?
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 <[EMAIL PROTECTED]> wrote:
> 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.
Scott Forman 2013-02-20, 19:30