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Re: Hbase bkup options - HBase - [mail # user]
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...There are a couple of nits... 1) Compression. This will help a bit when moving the files around. 2) Data size. You may have bandwidth issues. Moving TBs of data over...
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Author: Michael Segel,
2012-07-23, 23:03
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Re: Hbase bkup options - HBase - [mail # user]
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...Amian, Like always the answer to your question is... it depends. First, how much data are we talking about? What's the value of the underlying data? One possible s...
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Author: Michael Segel,
2012-07-23, 14:49
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Re: Use of MD5 as row keys - is this safe? - HBase - [mail # user]
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...Ethan, Its not a question of collision attacks, although that is an indication of the strength of the hash. Just because both MD5 and SHA-1 yield a key of the same length,...
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Author: Michael Segel,
2012-07-23, 11:55
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Re: How to merge regions in HBase? - HBase - [mail # user]
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...Find a different row key? The problem with merging regions is that once you merge the regions, any net new regions will still have the same problem. So you'll have to merg...
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Author: Michael Segel,
2012-07-17, 23:15
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Re: Maximum number of tables ? - HBase - [mail # user]
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...I'm going from memory. There was a hardcoded number. I'd have to go back and try to find it. From a practical standpoint, going over 1000 regions per RS will put you on th...
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Author: Michael Segel,
2012-07-13, 17:40
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Re: Maximum number of tables ? - HBase - [mail # user]
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...Currently there is a hardcoded limit on the number of regions that a region server can manage. Its 1500. Note that if the number of regions gets to around 1000 regions per ...
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Author: Michael Segel,
2012-07-13, 15:42
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Re: Embedded table data model - HBase - [mail # user]
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...First, A caveat... Schema design in HBase is one of the hardest things to teach/learn because its so open. There is more than one correct answer when it comes to creating a...
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Author: Michael Segel,
2012-07-13, 14:55
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Re: DataNode Hardware - HBase - [mail # user]
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...Uhm... I'd take a step back... this CPU bound; plus my naive assumption was that four spindles will have a hard time supplying data to MR fast enough for it to become bogge...
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Author: Michael Segel,
2012-07-12, 23:22
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Re: Improvement: Provide better feedback on Put to unknown CF - HBase - [mail # user]
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...Nobody is arguing that the exception message doesn't make sense. +1 to making better error messages. What I am suggesting is to take advantage of HBase's meta data. That is, &nbs...
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Author: Michael Segel,
2012-07-10, 22:15
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Re: Mixing Puts and Deletes in a single RPC - HBase - [mail # user]
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...Regardless, Its still a bad design. On Jul 9, 2012, at 10:02 PM, Jonathan Hsieh wrote: ...
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Author: Michael Segel,
2012-07-10, 11:57
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