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From William Slacum <wsla...@gmail.com>
Subject Re: [jira] [Created] (ACCUMULO-474) wikisearch against an unindexed field causes tablet servers to run out of memory, or stop-the-world-gc
Date Tue, 20 Mar 2012 15:12:25 GMT
Another thing to consider is that the document payloads are contained in
the 'd' column family. During an optimized query using the
BooleanLogicIterator, the 'd' column family is never hit by a scan.
However, on a full scan, the 'd' column family will be thought of as a
single event by the EvaluatingIterator, so it will try to glob together all
document payloads into a single multimap object.

On Tue, Mar 20, 2012 at 7:29 AM, Eric Newton (Created) (JIRA) <
jira@apache.org> wrote:

> wikisearch against an unindexed field causes tablet servers to run out of
> memory, or stop-the-world-gc
>
> ------------------------------------------------------------------------------------------------------
>
>                 Key: ACCUMULO-474
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-474
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: wikisearch
>         Environment: Search on "XTEXT == 'old' and XTEXT == 'man' and
> XTEXT == 'sea'"
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Minor
>             Fix For: 1.4.1
>
>
> Looking at a memory dump of a failing server, it looks like 50% of memory
> comes from ColumnVisibility objects.
>
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>
>

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