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https://issues.apache.org/jira/browse/LUCENE-1591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698841#action_12698841
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Michael McCandless commented on LUCENE-1591:
--------------------------------------------
Hmm I'm still hitting some errors, eg:
{code}
[junit] Testcase:
testRegularFileWithBZipCompressionEnabled(org.apache.lucene.benchmark.byTask.tasks.WriteLineDocTaskTest):
FAILED
[junit] expected:<3> but was:<1>
[junit] junit.framework.AssertionFailedError: expected:<3> but was:<1>
[junit] at
org.apache.lucene.benchmark.byTask.tasks.WriteLineDocTaskTest.doReadTest(WriteLineDocTaskTest.java:87)
[junit] at
org.apache.lucene.benchmark.byTask.tasks.WriteLineDocTaskTest.testRegularFileWithBZipCompressionEnabled(WriteLineDocTaskTest.java:144)
[junit]
{code}
and
{code}
[junit] Testcase:
testBZip2WithBzipCompressionDisabled(org.apache.lucene.benchmark.byTask.feeds.LineDocMakerTest):
FAILED
[junit] expected:<1> but was:<0>
[junit] junit.framework.AssertionFailedError: expected:<1> but was:<0>
[junit] at
org.apache.lucene.benchmark.byTask.feeds.LineDocMakerTest.doIndexAndSearchTest(LineDocMakerTest.java:96)
[junit] at
org.apache.lucene.benchmark.byTask.feeds.LineDocMakerTest.testBZip2WithBzipCompressionDisabled(LineDocMakerTest.java:119)
{code}
> Enable bzip compression in benchmark
> ------------------------------------
>
> Key: LUCENE-1591
> URL: https://issues.apache.org/jira/browse/LUCENE-1591
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/benchmark
> Reporter: Shai Erera
> Fix For: 2.9
>
> Attachments: commons-compress-dev20090413.jar,
> commons-compress-dev20090413.jar, LUCENE-1591.patch, LUCENE-1591.patch,
> LUCENE-1591.patch, LUCENE-1591.patch, LUCENE-1591.patch
>
>
> bzip compression can aid the benchmark package by not requiring extracting
> bzip files (such as enwiki) in order to index them. The plan is to add a
> config parameter bzip.compression=true/false and in the relevant tasks either
> decompress the input file or compress the output file using the bzip streams.
> It will add a dependency on ant.jar which contains two classes similar to
> GZIPOutputStream and GZIPInputStream which compress/decompress files using
> the bzip algorithm.
> bzip is known to be superior in its compression performance to the gzip
> algorithm (~20% better compression), although it does the
> compression/decompression a bit slower.
> I wil post a patch which adds this parameter and implement it in
> LineDocMaker, EnwikiDocMaker and WriteLineDoc task. Maybe even add the
> capability to DocMaker or some of the super classes, so it can be inherited
> by all sub-classes.
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