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Re: Iterators returning keys out of scan range - Accumulo - [mail # user]
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...Mr. VonCloud, I suspect you're going for something like eureka synchronization. I suppose that might work, but I wouldn't rely on that behavior persisting long-term. It's definitely in...
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Author: Adam Fuchs,
2013-05-02, 00:36
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Re: asciidoc manual - Accumulo - [mail # dev]
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...This looks good to me. Out of curiosity, what made you decide to use asciidoc rather than the multitude of other options? Cross-platform support looks good (support for Windows, Mac, and Lin...
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Author: Adam Fuchs,
2013-05-01, 21:18
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Re: Accumulo software and processes owner - Accumulo - [mail # user]
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...Terry, To properly secure you Accumulo install it's important that the shared secret in the Accumulo configs only be shared with the Accumulo processes, so I would recommend using a se...
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Author: Adam Fuchs,
2013-04-26, 20:53
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[ACCUMULO-1244] commons-io version conflict with CDH4 - Accumulo - [issue]
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...CDH4 appears to rely on commons-io version 2.0 or greater. Accumulo currently packages in version 1.4. We should bump this up to achieve compatibility.Workaround: put the hadoop dependency l...
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http://issues.apache.org/jira/browse/ACCUMULO-1244
Author: Adam Fuchs,
2013-04-24, 20:40
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[ACCUMULO-794] FirstEntryInRowIterator can scan through entire last row in range - Accumulo - [issue]
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...If the range passed to the FirstEntryInRowIterator is seeked with a Range that has an end key, the FirstEntryInRowIterator will scan through all of the entries in the last row that match the...
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http://issues.apache.org/jira/browse/ACCUMULO-794
Author: Adam Fuchs,
2013-04-16, 22:24
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Re: multi-table isolated batch scanner - Accumulo - [mail # dev]
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...Keith, I'm essentially performing a local sort-merge inner join (local meaning within one tablet at a time). This is similar to what the intersecting iterator does, but I'm doing it on...
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Author: Adam Fuchs,
2013-04-16, 16:33
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Re: multi-table isolated batch scanner - Accumulo - [mail # dev]
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...Hey Dave, You are absolutely right that the server-side space usage is a big concern. One of the ways that we conserve space on the server is to do multiple passes in which we scan a b...
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Author: Adam Fuchs,
2013-04-15, 23:01
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Re: multi-table isolated batch scanner - Accumulo - [mail # dev]
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...Keith, In this case we're filling the buffer before we can amortize the search cost. We're using a document-partitioned table design and we have to do a local sort before we can get th...
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Author: Adam Fuchs,
2013-04-15, 22:19
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Re: multi-table isolated batch scanner - Accumulo - [mail # dev]
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...Chris, The desire for isolation stems from the desire to amortize some computation over a number of results. Say it takes 5 seconds to compute an intersection of a couple of sets withi...
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Author: Adam Fuchs,
2013-04-15, 21:06
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Re: multi-table isolated batch scanner - Accumulo - [mail # dev]
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...Thanks Bill, I care about latency and throughput. First available result ordering is fine, though. Does Guava just chain through a collection of iterators, completing one then mo...
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Author: Adam Fuchs,
2013-04-15, 19:10
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