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Re: Heartbeat interval and timeout: why 3 secs and 10 min? - HDFS - [mail # dev]
...My understanding is that the 10 minute timeout helps to avoid replication storms, especially during startup.  You might be interested in HDFS-3703, which adds a "stale" state which data...
   Author: Colin McCabe, 2013-03-13, 18:08
Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
...On Tue, Feb 26, 2013 at 5:09 PM, Suresh Srinivas  wrote:  Hi Suresh,  HDFS-4538 adds the ability to use the old block reader in the HDFS-347 branch.  Check it out.  ...
   Author: Colin McCabe, 2013-03-05, 20:24
Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
...Here is a compromise proposal, which hopefully will satisfy both sides: We keep the old block reader and have a configuration option that enables it.  So in addition to dfs.client.use.l...
   Author: Colin McCabe, 2013-02-27, 23:28
Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
...On Sat, Feb 23, 2013 at 4:23 PM, Tsz Wo Sze  wrote:  UNIX domain sockets are supported on MacOS, FreeBSD, OpenBSD, NetBSD, Linux, etc etc.  Their behavior is standardized by P...
   Author: Colin McCabe, 2013-02-25, 18:31
Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
...On Thu, Feb 21, 2013 at 1:24 PM, Chris Douglas  wrote:  This seems like a reasonable solution to me.  To implement this on Windows, you would use the DuplicateHandle or WSADup...
   Author: Colin McCabe, 2013-02-22, 19:13
VOTE: HDFS-347 merge - HDFS - [mail # dev]
...Hi all,  I would like to merge the HDFS-347 branch back to trunk.  It's been under intensive review and testing for several months.  The branch adds a lot of new unit tests, a...
   Author: Colin McCabe, 2013-02-17, 21:48
Re: How to remove three disks from three different nodes in a ten node cluster in less than an hour without losing replicas? - HDFS - [mail # user]
...It sounds like what you would like is a way to decommission just one storage directory on the DataNode. We don't currently support that.  You might be able to get something approaching ...
   Author: Colin McCabe, 2013-02-04, 22:53
Re: JournalNode desynchronized - HDFS - [mail # user]
...You can rsync from one of your other JournalNodes into the correct directory on the new one. You can safely do this while the old one is running.  In the future, there will be a way to ...
   Author: Colin McCabe, 2013-02-04, 22:49
HDFS-347 (Short-circuit local reads with security) - HDFS - [mail # dev]
...Hi all,  The HDFS-347 branch implements short-circuit local reads with support for security.  This is just a "heads up" that it is getting ready to merge, and we will probably send...
   Author: Colin McCabe, 2013-01-16, 04:41
Re: /etc/hosts - HDFS - [mail # user]
...Hi Pavel,  There's some information about the need for 127.0.1.1 here:  http://www.leonardoborda.com/blog/127-0-1-1-ubuntu-debian/  If you have more questions about this, I re...
   Author: Colin McCabe, 2013-01-14, 20:36
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