hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Torsten Curdt <tcu...@apache.org>
Subject Re: Why is the task run in a child JVM?
Date Mon, 14 Jul 2008 14:21:12 GMT
> On 7/14/08, Jason Venner <jason@attributor.com> wrote:
>>
>> One benefit is that if your map or reduce behaves badly it can't  
>> take down
>> the task tracker.


As the tracker jvm could also be monitored (and restarted) from  
outside, the internal execution might still be worth looking into. At  
least to have the option. We had a patch ...but it's terrible out of  
date.

On the other hand starting up the second jvm is supposed to be much  
faster on 1.6 ....no idea if that's true though.

cheers
--
Torsten

Mime
View raw message