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[expand - 1 more] - Re: Compaction slowing queries - Accumulo - [mail # user]
...You can change compression codecs at any time on a per-table basis. Thisonly affects how new files are written. Existing files will still be readthe same way. See the table.file.compress.typ...
   Author: Adam Fuchs, 2014-09-11, 17:25
[ACCUMULO-3079] improve system iterator performance by collapsing call stack - Accumulo - [issue]
...System iterators are at the core of the tightest loops in Accumulo, handling every key/value pair that traverses through a scan or a compaction. In many cases, iterators are the current perf...
http://issues.apache.org/jira/browse/ACCUMULO-3079    Author: Adam Fuchs, 2014-09-02, 20:58
[ACCUMULO-3088] StatsIterator readCounter could be more accurate - Accumulo - [issue]
...When testing seek performance I noticed that the read count displayed on Accumulo's monitor page registered zero entries read per second and a positive number of entries per second returned....
http://issues.apache.org/jira/browse/ACCUMULO-3088    Author: Adam Fuchs, 2014-08-28, 15:19
[ACCUMULO-3067] scan performance degrades after compaction - Accumulo - [issue]
...I've been running some scan performance tests on 1.6.0, and I'm running into an interesting situation in which query performance starts at a certain level and then degrades by ~15% after an ...
http://issues.apache.org/jira/browse/ACCUMULO-3067    Author: Adam Fuchs, 2014-08-21, 20:51
Re: Review Request 24855: ACCUMULO-1454 design doc - Accumulo - [mail # dev]
...On Tue, Aug 19, 2014 at 4:17 PM,  wrote:I thought he found it was more like 90%+ for a long running ingesttest. Citation needed?Adam ...
   Author: Adam Fuchs, 2014-08-19, 20:27
Re: Column size limit - Accumulo - [mail # dev]
...Joe,I would say that a rule of thumb would be tens of megabytes for a singlecell. There are two limits that affect this:1) Amount of memory used: This includes ingesting into the batchwriter...
   Author: Adam Fuchs, 2014-08-18, 17:06
[ACCUMULO-599] investigate permgen collection and class unloading with concurrent mark and sweep garbage collector - Accumulo - [issue]
...The Java concurrent mark and sweep garbage collector appears to default to not unloading classes or sweeping the permgen storage space. Accumulo reloads classes dynamically, potentially cont...
http://issues.apache.org/jira/browse/ACCUMULO-599    Author: Adam Fuchs, 2014-08-06, 21:21
[ACCUMULO-1421] use reflection to improve compatibility between Hadoop 1 and 2 - Accumulo - [issue]
...JobContext switches between an abstract class and an interface in hadoop 1 and 2, causing runtime compatibility problems in the compiled Accumulo bytecode. Avoid the runtime problem by using...
http://issues.apache.org/jira/browse/ACCUMULO-1421    Author: Adam Fuchs, 2014-07-24, 18:19
Re: Search - Accumulo - [mail # dev]
...The nature of the "deadlock" is that the thread that initiates the writecomes from the same pool that handles the other side of the write, and thatthread is not released until the write comp...
   Author: Adam Fuchs, 2014-07-23, 21:26
[expand - 3 more] - Re: web master? - Accumulo - [mail # dev]
...Found it! It was missing dataTables.bootstrap.js.AdamOn Mon, Jul 21, 2014 at 2:24 PM, Josh Elser  wrote: ...
   Author: Adam Fuchs, 2014-07-21, 19:34
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