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Re: Replacing the JSP web UIs to HTML 5 applications - HDFS - [mail # dev]
...Right now, if you do a search on Google for dfshealth.jsp, you will find many unsecured NameNode web UIs which were accidentally exposed to the internet.  If the UIs were client-side, a...
[+ more]    Author: Colin McCabe, 2013-11-01, 17:56
Re: [VOTE] Merge HDFS-4949 to trunk - HDFS - [mail # dev]
...With 3 +1s, the vote passes.  Thanks, all.  best, Colin  On Fri, Oct 25, 2013 at 4:01 PM, Colin McCabe  wrote:...
[+ more]    Author: Colin McCabe, 2013-10-29, 01:14
Re: libhdfs portability - HDFS - [mail # dev]
...On Mon, Oct 28, 2013 at 4:24 PM, Kyle Sletmoe  wrote:  libhdfs is the basis of a lot of software built on top of HDFS, such as Impala and fuse_dfs, and yes, it works.  Patches...
   Author: Colin McCabe, 2013-10-29, 01:08
Re: Build Still Unstable: CDH5beta1-Hadoop-Common-2.1.0-CDH-JDK7-tests-JDK7-run-JDK7 - Build # 21 - HDFS - [mail # dev]
...Sorry for the noise.  I posted to the wrong list.  best, Colin  On Wed, Oct 16, 2013 at 9:13 AM, Colin McCabe  wrote:...
[+ more]    Author: Colin McCabe, 2013-10-16, 16:43
Re: hdfs native build failing in trunk - HDFS - [mail # dev]
...The relevant line is:  [exec]   gcc: vfork: Resource temporarily unavailable  Looks like the build slave was overloaded and could not create new processes?  Colin  O...
   Author: Colin McCabe, 2013-09-16, 17:14
Re: Secure deletion of blocks - HDFS - [mail # dev]
...Just to clarify, ext4 has the option to turn off journalling.  ext3 does not.  Not sure about reiser.  Colin   On Tue, Aug 20, 2013 at 12:42 PM, Colin McCabe wrote:  ...
[+ more]    Author: Colin McCabe, 2013-08-20, 19:43
Re: Feature request to provide DFSInputStream subclassing mechanism - HDFS - [mail # dev]
...There is work underway to decouple the block layer and the namespace layer of HDFS from each other.  Once this is done, block behaviors like the one you describe will be easy to impleme...
   Author: Colin McCabe, 2013-08-08, 19:10
Re: I'm interested in working with HDFS-4680. Can somebody be a mentor? - HDFS - [mail # dev]
...Andrew Wang has been working on getting this kind of Dapper-style trace functionality in HDFS.  He is on vacation this week, but next week he might have some ideas about how you could c...
   Author: Colin McCabe, 2013-07-17, 21:25
Re: data loss after cluster wide power loss - HDFS - [mail # dev]
...Thanks.  Suresh and Kihwal are right-- renames are journalled, but not necessarily durable (stored to disk).  I was getting mixed up with HDFS semantics, in which we actually do ma...
[+ more]    Author: Colin McCabe, 2013-07-09, 01:53
Re: dfs.datanode.socket.reuse.keepalive - HDFS - [mail # dev]
...Thanks for reminding me.  I filed https://issues.apache.org/jira/browse/HDFS-4911 for this.  4307 was about making the cache robust against programs that change the wall-clock time...
[+ more]    Author: Colin McCabe, 2013-06-17, 18:09
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