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Re: High load on datanode startup - Hadoop - [mail # user]
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...That's real weird.. If you can reproduce this after a reboot, I'd recommend letting the DN run for a minute, and then capturing a "jstack " as well as the output of "top -H -p -b...
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Author: Todd Lipcon,
2012-05-10, 08:33
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Re: [VOTE] Release hadoop-2.0.0-alpha - Hadoop - [mail # general]
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...Hi Andrew, Have you seen the new MiniMRClientCluster class? It's meant to be what you describe - a minicluster which only exposes "external" APIs -- most importantly a way of getting a...
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Author: Todd Lipcon,
2012-05-10, 05:00
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[HADOOP-8344] Improve test-patch to make it easier to find javadoc warnings - Hadoop - [issue]
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...Often I have to spend a lot of time digging through logs to find javadoc warnings as the result of a test-patch. Similar to the improvement made in HADOOP-8339, we should do the following: t...
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http://issues.apache.org/jira/browse/HADOOP-8344
Author: Todd Lipcon,
2012-05-03, 20:27
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Re: High Availability Framework for HDFS Namenode in 2.0.0 - Hadoop - [mail # user]
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...Hi Shi, The 20% regression was prior to implementing a few optimizations on the branch. Here's the later comment: https://issues.apache.org/jira/browse/HDFS-1623?focusedCommentId=13218...
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Author: Todd Lipcon,
2012-05-03, 17:29
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[HADOOP-8248] Clarify bylaws about review-then-commit policy - Hadoop - [issue]
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...As discussed on the mailing list (thread "Requirements for patch review" 4/4/2012) we should clarify the bylaws with respect to the review-then-commit policy. This JIRA is to agree on the pr...
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http://issues.apache.org/jira/browse/HADOOP-8248
Author: Todd Lipcon,
2012-04-26, 18:04
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[HADOOP-8306] ZKFC: improve error message when ZK is not running - Hadoop - [issue]
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...Currently if you start the ZKFC without starting ZK, you get an ugly stack trace. We should improve the error message and give it a unique exit code....
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http://issues.apache.org/jira/browse/HADOOP-8306
Author: Todd Lipcon,
2012-04-24, 19:35
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Re: [VOTE] Release hadoop-0.23.2-rc0 - Hadoop - [mail # general]
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...On Fri, Apr 20, 2012 at 7:28 AM, Daryn Sharp wrote: I think blocking the release of a non-alpha on this feature is a bit nutty. Not to undermine the work, but it only affects us...
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Author: Todd Lipcon,
2012-04-20, 18:41
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[HADOOP-8258] Add interfaces for compression codecs to use direct byte buffers - Hadoop - [issue]
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...Currently, the codec interface only provides input/output functions based on byte arrays. Given that most of the codecs are implemented in native code, this necessitates two extra copies - o...
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http://issues.apache.org/jira/browse/HADOOP-8258
Author: Todd Lipcon,
2012-04-20, 02:36
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[HADOOP-8295] ToolRunner.confirmPrompt spins if stdin goes away - Hadoop - [issue]
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...Currently, ToolRunner.confirmPrompt treats a "-1" response to its System.in.read() call the same as \n or \r. So, if stdin goes away, it can cause the JVM to spin in a loop. Instead, it shou...
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http://issues.apache.org/jira/browse/HADOOP-8295
Author: Todd Lipcon,
2012-04-20, 00:29
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Re: [VOTE] Release hadoop-0.23.2-rc0 - Hadoop - [mail # general]
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...On Thu, Apr 19, 2012 at 12:26 PM, Eli Collins wrote: Regarding protocols: +1 to _not_ locking down "cluster-internal" wire compatibility at this point. i.e we can break DNNN, or...
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Author: Todd Lipcon,
2012-04-19, 19:54
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