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Re: Draining/Decommisioning a tasktracker - Hadoop - [mail # user]
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...On Jan 28, 2011, at 1:09 AM, rishi pathak wrote: Decommissioning task trackers was added in 0.21....
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Author: Allen Wittenauer,
2011-01-29, 06:14
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Re: Java->native .so->seg fault->core dump file? - Hadoop - [mail # user]
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...On Jan 21, 2011, at 12:57 PM, Keith Wiley wrote: e slave nodes): .bashrc likely isn't executed at task startup, btw. Also, you would need to have this in whatever account ...
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Author: Allen Wittenauer,
2011-01-28, 17:39
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Re: Best way to limit the number of concurrent tasks per job on hadoop 0.20.2 - Hadoop - [mail # user]
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...On Jan 25, 2011, at 12:48 PM, Renaud Delbru wrote: allow a hard upper limit in number of concurrent tasks, do anybody know an y other solutions to achieve this ? The specific ch...
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Author: Allen Wittenauer,
2011-01-28, 17:34
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Re: [DISCUSS] Hadoop Security Release off Yahoo! patchset - Hadoop - [mail # general]
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...On Jan 17, 2011, at 2:56 PM, Eric Baldeschwieler wrote: ing for a stabilized modern version of Hadoop. Can we ratchet down the hyperbole to at least a point where I don't want...
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Author: Allen Wittenauer,
2011-01-18, 19:10
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Re: No locks available - Hadoop - [mail # user]
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...On Jan 11, 2011, at 2:39 AM, Adarsh Sharma wrote: rm some jobs ). But today when I start my cluster I came across a problem o n one of my datanodes. Are you running this on NFS?...
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Author: Allen Wittenauer,
2011-01-11, 23:49
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Re: monit? daemontools? jsvc? something else? - Hadoop - [mail # user]
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...On Jan 6, 2011, at 12:39 AM, Otis Gospodnetic wrote: ump, cores VM heap I'm talking about system level core dumps. i.e., ulimit -c and friends. [ I'm much mo...
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Author: Allen Wittenauer,
2011-01-06, 19:20
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Re: How to Achieve TaskTracker Decommission - Hadoop - [mail # user]
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...On Jan 6, 2011, at 3:35 AM, sandeep wrote: mradmin -refreshNodes was added in 0.21. ...
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Author: Allen Wittenauer,
2011-01-06, 16:38
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Re: monit? daemontools? jsvc? something else? - Hadoop - [mail # user]
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...On Jan 5, 2011, at 7:57 PM, Lance Norskog wrote: No. Ganglia does metrics, not monitoring. he ght one , ores it en eed...
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Author: Allen Wittenauer,
2011-01-06, 04:54
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Re: monit? daemontools? jsvc? something else? - Hadoop - [mail # user]
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...On Jan 4, 2011, at 10:29 PM, Otis Gospodnetic wrote: t it e the In the case of Hadoop, no. There has usually been at least a core dump, m essage in syslog, m...
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Author: Allen Wittenauer,
2011-01-05, 08:12
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Re: When does Reduce job start - Hadoop - [mail # user]
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...On Jan 4, 2011, at 10:53 AM, sagar naik wrote: Reduce tasks also eat slots while doing the map output. On shared grids, t his can be extremely bad behavior. mapred.reduce.slows...
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Author: Allen Wittenauer,
2011-01-04, 20:16
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