Hi all,
I am interested in knowing, if there is any background daemon in hadoop
which runs for regular periods checking if all the data copies(blocks as
listed in block map) do exist and are not corrupted?. Can you please point
me to that piece of code in hadoop?
Thanks,
Kartheek.
You can look at BlockPoolSliceScanner#scan method. This is in trunk code.
You can find this logic in DataBlockScanner#run in earlier versions.
Regards,
Uma
- Original Message -
From: kartheek muthyala kartheek0...@gmail.com
Date: Monday, November 7, 2011 7:31 pm
Subject: Any daemon?
It seems logical too that launching 4000 map tasks on a 20 node cluster is
going to have a lot of overhead with it. 20 does not seem like the ideal
number, but I don't really know the internals of Cassandra that well. You
might want to post this question on the Cassandra list to see if they
This is a reply to an old message, but I have started working on this only
recently. Just creating the lib directory that it is complaining about
gets you further.
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Hello,
I'm using Fuse to mount HDFS /tmp/samba, after mounted has ? ? ? ?issue,
please see screenshot.
Thanks !
Hey Willson,
Unfortunately, the mailing lists strip away attachments from a mail.
It would be better if you posted it on imgur.com/imageshack.us/etc.
services and sent the list a link. Same for logs --
pastebin.com/gist/etc. them than attach them on the email.
On Sun, Nov 6, 2011 at 10:46 AM,
Does anyone have BETA access into the OceanSync's Hadoop Management Software?
The website is http://www.oceansync.com and sourceforge page is
http://sourceforge.net/p/oceansync/
Is there other software like this somewhere?
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