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Re: deadNodes in DFSInputStream - HDFS - [mail # dev]
...Take a look at HDFS-4273, which fixes some issues with the read retry logic.  cheers, Colin  On Tue, Dec 31, 2013 at 1:25 AM, lei liu  wrote:...
   Author: Colin McCabe, 2013-12-31, 22:12
Re: ByteBuffer-based read API for pread - HDFS - [mail # dev]
...It's true that HDFS (and Hadoop generally) doesn't currently have a ByteBuffer-based pread API.  There is a JIRA open for this issue, HDFS-3246.  I do not know if implementing a By...
   Author: Colin McCabe, 2013-12-31, 22:04
Re: Deprecate BackupNode - HDFS - [mail # dev]
...+1  Colin On Dec 4, 2013 3:07 PM, "Suresh Srinivas"  wrote:  ...
   Author: Colin McCabe, 2013-12-06, 00:20
Re: HDFS single datanode cluster issues - HDFS - [mail # dev]
...First of all, HDFS isn't really the right choice for single-node environments.  I would recommend using LocalFileSystem in this case. If you're evaluating HDFS and only have one compute...
   Author: Colin McCabe, 2013-11-07, 17:09
[expand - 1 more] - 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...
   Author: Colin McCabe, 2013-11-01, 17:56
[expand - 1 more] - 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:...
   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
[expand - 1 more] - 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:...
   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
[expand - 1 more] - 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:  ...
   Author: Colin McCabe, 2013-08-20, 19:43
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB