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Re: child task choking on large (19K) input line - Hadoop - [mail # dev]
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...On Fri, Jun 5, 2009 at 1:41 PM, Thushara Wijeratna wrote: Please do contribute patches! The instructions are at http://wiki.apache.org/hadoop/HowToContribute . You'll end u...
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Author: Philip Zeyliger,
2009-06-17, 18:43
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Re: Running hadoop in standalone mode using Eclipse - Hadoop - [mail # dev]
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...Hi George, You're probably missing a handful of Java properties. One way to figure out which is to run it on the commandline, look at the commandline with ps (you'll want the -ww flag...
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Author: Philip Zeyliger,
2009-06-17, 18:41
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Re: [VOTE] Rename Core to Common - Hadoop - [mail # general]
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...+1 On Wed, Jun 17, 2009 at 11:28 AM, Owen O'Malley wrote: ...
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Author: Philip Zeyliger,
2009-06-17, 18:30
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Re: Finding where the file blocks are - Hadoop - [mail # user]
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...On Tue, May 19, 2009 at 1:00 AM, Foss User wrote: It'll send you to a data node which has at least one block, and that data node will proxy other blocks. So, you'll ...
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Author: Philip Zeyliger,
2009-05-19, 18:13
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Re: public IP for datanode on EC2 - Hadoop - [mail # user]
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...On Tue, May 12, 2009 at 9:11 PM, Joydeep Sen Sarma w rote: ng hdfs on ec2 from outside ec2 is not possible. -985. Even if datanode ports are authorized in ec2 and we set the public ho ...
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Author: Philip Zeyliger,
2009-05-13, 21:39
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Re: Setting thread stack size for child JVM - Hadoop - [mail # user]
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...On Fri, May 8, 2009 at 1:11 PM, Ken Krugler wrote: It doesn't look like Hadoop lets you run an arbitrary ulimit command, but if you take a look at Shell.getUlimitMemoryCommand(c...
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Author: Philip Zeyliger,
2009-05-08, 22:18
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Re: Setting thread stack size for child JVM - Hadoop - [mail # user]
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...You could add "-Xss" to the "mapred.child.java.opts" configuration setting. That's controlling the Java stack size, which I think is the relevant bit for you. Cheers, &nbs...
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Author: Philip Zeyliger,
2009-05-08, 18:57
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Re: Is HDFS protocol written from scratch? - Hadoop - [mail # user]
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...On Thu, May 7, 2009 at 1:04 PM, Foss User wrote: I believe that the JobClient does write the job's files to HDFS (with mapred.submit.replication replication factor) as par...
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Author: Philip Zeyliger,
2009-05-08, 01:20
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Re: Is HDFS protocol written from scratch? - Hadoop - [mail # user]
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...It's over TCP/IP, in a custom protocol. See DataXceiver.java. My sense is that it's a custom protocol because Hadoop's IPC mechanism isn't optimized for large messages. On...
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Author: Philip Zeyliger,
2009-05-07, 17:43
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Re: cannot open an hdfs file in O_RDWR mode - Hadoop - [mail # user]
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... Set dfs.support.append to true in your hadoop-site.xml. See also https://issues.apache.org/jira/browse/HADOOP-5332 . ...
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Author: Philip Zeyliger,
2009-05-04, 21:35
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