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https://issues.apache.org/jira/browse/HBASE-10552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13903644#comment-13903644
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Hudson commented on HBASE-10552:
--------------------------------
FAILURE: Integrated in HBase-0.94-on-Hadoop-2 #26 (See
[https://builds.apache.org/job/HBase-0.94-on-Hadoop-2/26/])
HBASE-10552 HFilePerformanceEvaluation.GaussianRandomReadBenchmark fails
sometimes. (larsh: rev 1569129)
*
/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/HFilePerformanceEvaluation.java
> HFilePerformanceEvaluation.GaussianRandomReadBenchmark fails sometimes.
> -----------------------------------------------------------------------
>
> Key: HBASE-10552
> URL: https://issues.apache.org/jira/browse/HBASE-10552
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Priority: Minor
> Fix For: 0.96.2, 0.98.1, 0.99.0, 0.94.17
>
> Attachments: 10552-0.94.txt, 10552-trunk.txt
>
>
> GaussianRandomReadBenchmark generates seek keys by using a Gaussian
> distribution with the mean of N/2 and a sigma of N/10 (N = number of rows
> used) and using this key directly to seek into the HFile. The HFile was
> seeded with keys from 0-N.
> This will fail if we ever generate a key < 0, which is rare, but by no means
> impossible. We need to clamp the min and max values to 0 and N, resp.
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