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Re: Need help regarding HDFS-RAID - HDFS - [mail # user]
...Hi Dhruba,  Would you consider a contribution of this to branch-0.20-se curity aka 0.20.2xx.x?  If I am mistaken and you do not have a 0.22-i sh HDFS RAID backported to an 0.20-ish...
   Author: Andrew Purtell, 2011-09-17, 16:16
Re: Need help regarding HDFS-RAID - HDFS - [mail # user]
...HDFS RAID from 0.21 will work if back ported to 0.20. Only a minor fixup is  needed.  HDFS RAID from 0.22 relies on new HDFS APIs not available in  0.20.    Best regards,...
   Author: Andrew Purtell, 2011-09-15, 18:01
Re: Need help regarding HDFS-RAID - HDFS - [mail # user]
...But that is the HDFS RAID effectively in 0.22+, not 0.21, right Dhruba?     Best regards,          - Andy  Problems worthy of  attack prove their worth by hitti...
   Author: Andrew Purtell, 2011-09-15, 17:08
Re: HDFS + ZooKeeper - HDFS - [mail # user]
...What do you mean by "actual NameNode methods/functions"? I believe there was an effort during the development of AvatarNode to use BookKeeper (http://zookeeper.apache.org/doc/r3.3.3/bookkeep...
   Author: Andrew Purtell, 2011-04-24, 17:20
Re: Is DFSInputStream.read(long position,...) designed for multi threaded access? - HDFS - [mail # user]
...I looked at HADOOP-6311 recently when deciding if I wanted to port the full  FD-passing bits of HDFS-347 onto CDH3B3. I see Owen changed his -1 to -0,  but that's not really comfor...
   Author: Andrew Purtell, 2011-03-02, 22:38
Re: That append patch in 0.20 - HDFS - [mail # dev]
...[...]  We ported 0.20-append patches on top of Y! 0.20.100.3:     https://github.com/trendmicro/hadoop-common  but stopped at HDFS-1346. This was head of 0.20-append arou...
   Author: Andrew Purtell, 2011-01-31, 00:34
RE: Lots of Different Kind of Datanode Errors - HDFS - [mail # user]
...HDFS-1148    - Andy From: Gokulakannan M  Subject: RE: Lots of Different Kind of Datanode Errors To: [EMAIL PROTECTED], [EMAIL PROTECTED] Date: Monday, June 7, 2010, 10:31 PM   &nb...
   Author: Andrew Purtell, 2010-06-08, 16:54
Re: Lots of Different Kind of Datanode Errors - HDFS - [mail # user]
...Current synchronization on FSDataset seems not quite right. Doing what am ounted to applying Todd's patch that modifies FSDataSet to use reentrant  rwlocks cleared up that type of probl...
   Author: Andrew Purtell, 2010-06-07, 19:53
Re: [VOTE] Commit hdfs-1024 to 0.20 branch - HDFS - [mail # dev]
...+1  tting HDFS-1024 to the hadoop 0.20 branch.  py from 2NN and NN.  Ordinarily, possible tion would merit commit w/o s that UNLESS   IMO, this incompatible change can be e note; e...
   Author: Andrew Purtell, 2010-04-03, 19:55
RE: [VOTE] Commit HDFS-927 to both 0.20 and 0.21 branch? - HDFS - [mail # dev]
...+1     - Andy  From: Stack  Date: Tue, Feb 2, 2010 at 10:22 PM Subject: [VOTE] Commit HDFS-927 to both 0.20 and 0.21 branch? To: [EMAIL PROTECTED]   I'd like to open...
   Author: Andrew Purtell, 2010-02-03, 07:22
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