[
https://issues.apache.org/jira/browse/TIKA-2520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16490894#comment-16490894
]
ASF GitHub Bot commented on TIKA-2520:
--------------------------------------
chrismattmann commented on issue #237: TIKA-2520 optimize OptimaizeLangDetector
default loadModel()
URL: https://github.com/apache/tika/pull/237#issuecomment-392101027
didn't fix it for branch_1x either :( @tballison
```
Results :
Failed tests:
PDFParserTest.testEmbeddedDocsWithOCROnly:1250->TikaTest.assertContains:103
pdf_haystack not found in:
<html xmlns="http://www.w3.org/1999/xhtml";>
<head>
<meta name="date" content="2013-05-23T18:30:00Z" />
<meta name="cp:revision" content="1" />
<meta name="extended-properties:AppVersion" content="14.0000" />
<meta name="meta:paragraph-count" content="1" />
<meta name="meta:word-count" content="16" />
<meta name="extended-properties:Company" content="" />
<meta name="Word-Count" content="16" />
<meta name="dcterms:created" content="2013-05-23T18:30:00Z" />
<meta name="meta:line-count" content="1" />
<meta name="Last-Modified" content="2013-05-23T18:30:00Z" />
<meta name="dcterms:modified" content="2013-05-23T18:30:00Z" />
<meta name="Last-Save-Date" content="2013-05-23T18:30:00Z" />
<meta name="meta:character-count" content="96" />
<meta name="Template" content="Normal.dotm" />
<meta name="Line-Count" content="1" />
<meta name="Paragraph-Count" content="1" />
<meta name="meta:save-date" content="2013-05-23T18:30:00Z" />
<meta name="meta:character-count-with-spaces" content="111" />
<meta name="Application-Name" content="Microsoft Office Word" />
<meta name="modified" content="2013-05-23T18:30:00Z" />
<meta name="Content-Type"
content="application/vnd.openxmlformats-officedocument.wordprocessingml.document"
/>
<meta name="X-Parsed-By" content="org.apache.tika.parser.DefaultParser" />
<meta name="X-Parsed-By"
content="org.apache.tika.parser.microsoft.ooxml.OOXMLParser" />
<meta name="meta:creation-date" content="2013-05-23T18:30:00Z" />
<meta name="extended-properties:Application" content="Microsoft Office Word"
/>
<meta name="Creation-Date" content="2013-05-23T18:30:00Z" />
<meta name="xmpTPg:NPages" content="1" />
<meta name="Character-Count-With-Spaces" content="111" />
<meta name="Character Count" content="96" />
<meta name="Page-Count" content="1" />
<meta name="Revision-Number" content="1" />
<meta name="Application-Version" content="14.0000" />
<meta name="extended-properties:Template" content="Normal.dotm" />
<meta name="publisher" content="" />
<meta name="meta:page-count" content="1" />
<meta name="dc:publisher" content="" />
<title></title>
</head>
<body><p class="header" />
<p class="header" />
<p class="header" />
<p>Outer_haystack</p>
<p>Outer_haystack</p>
<p><div class="embedded" id="rId8" />
</p>
<p>Outer_haystack</p>
<p />
<p>Outer_haystack</p>
<p />
<p>Outer_haystack</p>
<p><a name="_GoBack" /></p>
<p class="footer" />
<p class="footer" />
<p class="footer" />
<p>attached.pdf</p>
<div class="page"><div class="ocr">dehayslack dehaystack dehayslack
dehaystack dehaystack dehaystack pd'
</div>
</div>
<p class="header" />
<p class="header" />
<p class="header" />
<p>Haystack</p>
<p>Needle</p>
<p>Haystack</p>
<p><a name="_GoBack" /></p>
<p class="footer" />
<p class="footer" />
<p class="footer" />
<div source="attachment" class="embedded" id="Test.docx" />
</body></html>
Tests run: 1009, Failures: 1, Errors: 0, Skipped: 30
[INFO]
------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Apache Tika parent ................................. SUCCESS [ 2.496
s]
[INFO] Apache Tika core ................................... SUCCESS [ 35.187
s]
[INFO] Apache Tika parsers ................................ FAILURE [07:03
min]
[INFO] Apache Tika XMP .................................... SKIPPED
[INFO] Apache Tika serialization .......................... SKIPPED
[INFO] Apache Tika batch .................................. SKIPPED
[INFO] Apache Tika language detection ..................... SKIPPED
[INFO] Apache Tika application ............................ SKIPPED
[INFO] Apache Tika OSGi bundle ............................ SKIPPED
[INFO] Apache Tika translate .............................. SKIPPED
[INFO] Apache Tika server ................................. SKIPPED
[INFO] Apache Tika examples ............................... SKIPPED
[INFO] Apache Tika Java-7 Components ...................... SKIPPED
[INFO] Apache Tika eval ................................... SKIPPED
[INFO] Apache Tika Deep Learning (powered by DL4J) ........ SKIPPED
[INFO] Apache Tika Natural Language Processing ............ SKIPPED
[INFO] Apache Tika ........................................ SKIPPED
[INFO]
------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 07:42 min
[INFO] Finished at: 2018-05-25T08:45:25-07:00
[INFO] Final Memory: 66M/751M
[INFO]
------------------------------------------------------------------------
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on
project tika-parsers: There are test failures.
[ERROR]
[ERROR] Please refer to
/Users/mattmann/tmp/tika2.0.0/tika-parsers/target/surefire-reports for the
individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e
switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please
read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the
command
[ERROR] mvn <goals> -rf :tika-parsers
nonas:tika2.0.0 mattmann$ git branch
TIKA-1988
TIKA-1988-new
TIKA-2016
TIKA-2298
* branch_1x
gsoc17
master
merge-mattmann-TIKA-1988
nonas:tika2.0.0 mattmann$
```
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> OptimaizeLangDetector#loadModels() should not be called for every single
> langdetect HTTP request
> ------------------------------------------------------------------------------------------------
>
> Key: TIKA-2520
> URL: https://issues.apache.org/jira/browse/TIKA-2520
> Project: Tika
> Issue Type: Improvement
> Components: server
> Affects Versions: 1.16
> Reporter: Vincent van Donselaar
> Assignee: Chris A. Mattmann
> Priority: Minor
> Labels: performance
> Fix For: 1.19
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Tika REST server's `/language` resource invokes the relatively heavy
> `loadModels` operation for every language detect call:
> {code:title=LanguageResource.java}
> public String detect(final String string) throws IOException {
> LanguageResult language = new
> OptimaizeLangDetector().loadModels().detect(string);
> String detectedLang = language.getLanguage();
> LOG.info("Detecting language for incoming resource: [{}]",
> detectedLang);
> return detectedLang;
> }
> {code}
> This could be optimized by (lazy?) loading the models only once and keep them
> in memory. I assume the `LanguageDetector` is not thread safe, so I expect
> this requires an ExecutorService with language detectors.
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