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From Matt Parker <>
Subject Re: Accumulo 1.4 Memory Issues
Date Thu, 02 Aug 2012 17:34:59 GMT
for my small test case, I'm storing some basic data in three tables:

nodes - spatial index (id, list of child nodes, whether it's a leaf node )
image metadata - (id, bounding box coordinates, a text string of the
bounding box)
link - linking table that tells which images correspond to specific nodes.

The image data isn't being stored in Accumulo, yet.

On Thu, Aug 2, 2012 at 1:25 PM, Marc Parisi <> wrote:

> are you using native maps? if so, are they being used?
> On Thu, Aug 2, 2012 at 1:16 PM, Matt Parker <> wrote:
>> I setup a single instance Accumulo server.
>> I can load 32K rows of image metadata without issue.
>> I have another set of routines that build a dynamic spatial index, where
>> nodes are inserted/updated/deleted over time.
>> These operations are typically done one at a time, where each batchwriter
>> are closed after use.
>> It loads maybe a couple hundred operations, and then it dies with an
>> OutOfMemory error when trying to close a batchwriter.
>> I tried uping the memery settings on my client and on the tserver, but
>> the results were the same.
>> Outside of Accumulo, I can build the whole index in memory without any
>> special JVM memory settings. I was wondering whether anyone else had run
>> into a similar issue?

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