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Re: Hadoop not working after replacing hadoop-core.jar with hadoop-core-append.jar - HBase - [mail # user]
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...Just a simple suggestion... When you install Hadoop and HBase, you may want to go into /usr/lib/hadoop a nd create a symbolic link called hadoop.jar that points to the current hadoo p jar. D...
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Author: Michel Segel,
2011-06-10, 11:12
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Re: Hbase Hardware requirement - HBase - [mail # user]
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...Expensive is relative and with the latest intel hardware release you're star ting to see 10gbe on the motherboard. Not to mention you don't get a linear boost w port bonding. You...
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Author: Michel Segel,
2011-06-10, 01:58
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Re: How to efficiently join HBase tables? - HBase - [mail # user]
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... This is why I was suggesting using the temp tables and not trying to do it a s a sing map reduce job. When your data sets get very large you will have p roblems......... ...
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Author: Michel Segel,
2011-06-09, 12:09
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Re: How to efficiently join HBase tables? - HBase - [mail # user]
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...Doug, I think I should clarify something... Yes I am the only one who is saying get() won't work. The question was asked on how to do an efficient join where there were no sp eci...
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Author: Michel Segel,
2011-06-09, 12:02
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Re: How to efficiently join HBase tables? - HBase - [mail # user]
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...Unless I am mistaken... get() requires a row key, right? And you can join tables on column data which isn't in the row key, right? So how do you do a get()? :-) Sure there is mor...
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Author: Michel Segel,
2011-06-08, 14:14
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Re: using HBase to read from xml files in HDFS - HBase - [mail # user]
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...James, yes you can do it. You need to write your own input format to split each input on a specified t ag boundary. Sent from a remote device. Please excuse any typos... Mike Seg...
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Author: Michel Segel,
2011-06-03, 12:01
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Re: HBase Transaction per second in Map-Reduce - HBase - [mail # user]
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...You could, but you don't really need to do that. Of course the size of your cache is tunable and based on how much memory you have. On a side note... You said you're on CDH3, it doesn'...
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Author: Michel Segel,
2011-05-24, 21:21
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Re: How to speedup Hbase query throughput - HBase - [mail # user]
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...Ok. This why I asked you earlier about how you were generating your user ids. You're not going to get a good distribution. First, random numbers usually aren't that random. ...
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Author: Michel Segel,
2011-05-20, 06:15
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Re: How to speedup Hbase query throughput - HBase - [mail # user]
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...I had asked the question about how he created random keys... Hadn't seen a r esponse. Sent from a remote device. Please excuse any typos... Mike Segel On May 18, 2011, at 1...
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Author: Michel Segel,
2011-05-19, 11:42
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Re: Hmaster is OutOfMemory - HBase - [mail # user]
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...filesize , parallel scalability will be low and affect scan latency . rashed? Hi, From what everyone I've talked with, a rule of thumb is to have no more th an 1000 regions per ...
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Author: Michel Segel,
2011-05-12, 10:47
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