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Re: compressing values returned to scanner - Accumulo - [mail # user]
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...That is exactly my use case (ingest once, serve often, no server-side iterators). And I'm doing pre-compression on ingest. I was just looking to do away with app-level compression code...
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Author: ameet kini,
2012-10-01, 19:40
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Re: compressing values returned to scanner - Accumulo - [mail # user]
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...In other words, "handle compression/decompression in the application" :) I'm looking to see if there's a way to do this in Accumulo. Maybe a table level config parameter. There's...
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Author: ameet kini,
2012-10-01, 19:27
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compressing values returned to scanner - Accumulo - [mail # user]
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...My understanding of compression in Accumulo 1.4.1 is that it is on by default and that data is decompressed by the tablet server, so data on the wire between server/client is decompressed. I...
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Author: ameet kini,
2012-10-01, 19:03
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Re: tablet identifiers - Accumulo - [mail # user]
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...Thanks Eric, that makes sense - my tables below have row-ids in the same range, so tablet id collisions are frequent. Ameet On Mon, Oct 1, 2012 at 10:08 AM, Eric Newton wr...
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Author: ameet kini,
2012-10-01, 14:13
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tablet identifiers - Accumulo - [mail # user]
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...Are tablet identifiers unique across all tables? For e.g., can table T1 and T2 each have a tablet identified by "6YTr84b7Y8Ur5XLywlhS9Q=="? I'm seeing that case. Other than an identifier, I'...
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Author: ameet kini,
2012-10-01, 13:58
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Re: number of query threads for batch scanner - Accumulo - [mail # user]
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...Thanks Eric and Keith. Is there any reason why the number of concurrent scans on a given tablet server depends on the number of tablets and not the number of cores on that tablet serve...
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Author: ameet kini,
2012-09-28, 13:35
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Re: number of query threads for batch scanner - Accumulo - [mail # user]
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...So I decided to try something different, and changed my splitting policy. This ended up with more tablets per tablet server. Interestingly, this bumped up my maximum concurrent scans on that...
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Author: ameet kini,
2012-09-26, 13:19
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Re: number of query threads for batch scanner - Accumulo - [mail # user]
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...I should also state the not-so-obvious that my Range spans the entire range of the four tablets in question. Ameet On Tue, Sep 25, 2012 at 3:17 PM, ameet kini wrote: ...
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Author: ameet kini,
2012-09-25, 19:23
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Re: number of query threads for batch scanner - Accumulo - [mail # user]
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...Thanks William. The issue here is that without knowing how the numQueryThreads translates to the number of concurrent scans, I cannot effectively tune that parameter to maximize resour...
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Author: ameet kini,
2012-09-25, 19:17
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Re: number of query threads for batch scanner - Accumulo - [mail # user]
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...Probably worth adding that the table mentioned below has a bunch of tablets on other tablet servers as well, which is why I'm using BatchScanner. I'm just not sure how the numQueryThreads re...
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Author: ameet kini,
2012-09-25, 18:45
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