hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Rich Haase <rha...@pandora.com>
Subject Re: What happens to data nodes when name node has failed for long time?
Date Fri, 12 Dec 2014 15:56:31 GMT
The remaining cluster services will continue to run.  That way when the namenode (or other
failed processes) is restored the cluster will resume healthy operation.  This is part of
hadoop’s ability to handle network partition events.

Rich Haase | Sr. Software Engineer | Pandora
m 303.887.1146 | rhaase@pandora.com

From: Chandrashekhar Kotekar <shekhar.kotekar@gmail.com<mailto:shekhar.kotekar@gmail.com>>
Reply-To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Date: Friday, December 12, 2014 at 3:57 AM
To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Subject: What happens to data nodes when name node has failed for long time?

Hi,

What happens if name node has crashed for more than one hour but secondary name node, all
the data nodes, job tracker, task trackers are running fine? Do those daemon services also
automatically shutdown after some time? Or those services keep running hoping for namenode
to come back?

Regards,
Chandrash3khar Kotekar
Mobile - +91 8600011455

Mime
View raw message