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Re: Hadoop counter - MapReduce - [mail # user]
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...On Oct 21, 2012, at 1:45 AM, Lin Ma wrote: resolved by you. The last two questions (or comments) are used to confirm my understanding is correct, the counters from previous...
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Author: Michael Segel,
2012-10-21, 12:15
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Re: Hadoop counter - MapReduce - [mail # user]
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...On Oct 19, 2012, at 10:27 PM, Lin Ma wrote: discussion. when a specific task completed (and counter is aggregated in JT after the task completed from our discussion?), the ...
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Author: Michael Segel,
2012-10-20, 07:12
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Re: Hadoop counter - MapReduce - [mail # user]
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...Yeah, sorry... I meant that if you were dynamically creating a counter foo in the Mapper task, then each mapper would be creating their own counter foo. As the job runs, ...
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Author: Michael Segel,
2012-10-19, 21:05
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Re: Hadoop counter - MapReduce - [mail # user]
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...On Oct 19, 2012, at 11:27 AM, Lin Ma wrote: reducer instance? Either. the JT and see if the counter exists or if it could get a value or even an accurate value...
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Author: Michael Segel,
2012-10-19, 16:42
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Re: Hadoop counter - MapReduce - [mail # user]
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...As I understand it... each Task has its own counters and are independently updated. As they report back to the JT, they update the counter(s)' status. The JT then will aggregate ...
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Author: Michael Segel,
2012-10-19, 14:35
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Re: HDFS using SAN - MapReduce - [mail # user]
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...I haven't played with a NetApp box, but the way it has been explained to me is that your SAN appears as if its direct attached storage. Its possible, based on drives and other ha...
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Author: Michael Segel,
2012-10-18, 13:58
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Re: Hadoop and CUDA - MapReduce - [mail # user]
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...When you create your jar using netbeans, do you include the Hadoop libraries in the jar you create? This would increase the size of the jar and in this case, size does matt...
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Author: Michael Segel,
2012-10-18, 12:21
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Re: Hive Query with UDF - MapReduce - [mail # user]
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...You really don't want to do that. It becomes a nightmare in that you now ship a derivative of Hive and then have to maintain it and keep it in lock step w Hive from Apache. &nbs...
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Author: Michael Segel,
2012-10-18, 02:21
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Re: Hive Query with UDF - MapReduce - [mail # user]
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...You don't need an UDF... You encrypt the string 'Ann' first then use that encrypted value in the Select statement. That should make things a bit simpler. On...
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Author: Michael Segel,
2012-10-18, 01:10
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Re: Using a hard drive instead of - MapReduce - [mail # user]
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...Meh. If you are worried about the memory constraints of a Linux system, I'd say go with MapR and their CLDB. I just did a quick look at Supermico servers and found that o...
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Author: Michael Segel,
2012-10-17, 23:27
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