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https://issues.apache.org/jira/browse/SOLR-4092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13499906#comment-13499906
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Shawn Heisey commented on SOLR-4092:
------------------------------------
In order to be affected by this, the user must be running running Solr 4.1 with
no ramBufferSizeMB in their config.
With the Solr upgrade from 3.x, Solr's memory footprint will be drastically
altered no matter what happens with the default ramBufferSizeMB. In many cases
that footprint will be significantly smaller than it was before, so any change
from this increase may be in the noise. The user may be surprised by new index
segments that are suddenly much larger, but since it comes with better
performance, I doubt there would be any major fallout.
My bias is to change the test, and leave ramBufferSizeMB at 100 for all
luceneMatchVersion values. Or you could appeal to binary perfection and make
it 128. :)
> Test failure in org.apache.solr.core.TestConfig.testDefaults31
> --------------------------------------------------------------
>
> Key: SOLR-4092
> URL: https://issues.apache.org/jira/browse/SOLR-4092
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.1
> Reporter: Shawn Heisey
> Fix For: 4.1
>
> Attachments: SOLR-4092-code.patch, SOLR-4092-test.patch
>
>
> Checkout of branch_4x on 2012/11/18 at about 19:00 UTC.
> [junit4:junit4] FAILURE 0.21s | TestConfig.testDefaults31 <<<
> [junit4:junit4] > Throwable #1: java.lang.AssertionError: default
> ramBufferSizeMB should be 16
> [junit4:junit4] > at
> __randomizedtesting.SeedInfo.seed([25295D05EC822830:3C3BA9C90D30C561]:0)
> [junit4:junit4] > at org.junit.Assert.fail(Assert.java:93)
> [junit4:junit4] > at org.junit.Assert.assertTrue(Assert.java:43)
> [junit4:junit4] > at
> org.apache.solr.core.TestConfig.testDefaults31(TestConfig.java:152)
> <snip>
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