[SOLR-2346] Non UTF-8 Text files having other than english texts(Japanese/Hebrew) are no getting indexed correctly.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.4.1, 3.1, 4.0-ALPHA
• Fix Version/s: 3.6, 4.0-ALPHA
• Component/s: contrib - Solr Cell (Tika extraction)

Environment

Solr 1.4.1, Packaged Jetty as servlet container, Windows XP SP1, Machine was booted in Japanese Locale.

• Assignee: Koji Sekiguchi
• Reporter: Prasad Deshpande
• Created: 03/Feb/11 05:48
• Updated: 10/May/13 10:39
• Resolved: 28/Dec/11 07:37

Description

I am able to successfully index/search non-Engilsh files (like Hebrew, Japanese) which was encoded in UTF-8. However, When I tried to index data which was encoded in local encoding like Big5 for Japanese I could not see the desired results. The contents after indexing looked garbled for Big5 encoded document when I searched for all indexed documents. When I index attached non utf-8 file it indexes in following way

• <result name="response" numFound="1" start="0">
• <doc>
• <arr name="attr_content">
  <str>�� ������</str>
  </arr>
• <arr name="attr_content_encoding">
  <str>Big5</str>
  </arr>
• <arr name="attr_content_language">
  <str>zh</str>
  </arr>
• <arr name="attr_language">
  <str>zh</str>
  </arr>
• <arr name="attr_stream_size">
  <str>17</str>
  </arr>
• <arr name="content_type">
  <str>text/plain</str>
  </arr>
  <str name="id">doc2</str>
  </doc>
  </result>
  </response>

Here you said it index file in UTF8 however it seems that non UTF8 file gets indexed in Big5 encoding.
Here I tried fetching indexed data stream in Big5 and converted in UTF8.

String id = (String) resulDocument.getFirstValue("attr_content");
byte[] bytearray = id.getBytes("Big5");
String utf8String = new String(bytearray, "UTF-8");
It does not gives expected results.

When I index UTF-8 file it indexes like following

• <doc>
• <arr name="attr_content">
  <str>マイ ネットワーク</str>
  </arr>
• <arr name="attr_content_encoding">
  <str>UTF-8</str>
  </arr>
• <arr name="attr_stream_content_type">
  <str>text/plain</str>
  </arr>
• <arr name="attr_stream_name">
  <str>sample_jap_unicode.txt</str>
  </arr>
• <arr name="attr_stream_size">
  <str>28</str>
  </arr>
• <arr name="attr_stream_source_info">
  <str>myfile</str>
  </arr>
• <arr name="content_type">
  <str>text/plain</str>
  </arr>
  <str name="id">doc2</str>
  </doc>

So, I can index and search UTF-8 data.

For more reference below is the discussion with Yonik.
Please find attached TXT file which I was using to index and search.

curl "http://localhost:8983/solr/update/extract?literal.id=doc1&uprefix=attr_&fmap.content=attr_content&fmap.div=foo_t&boost.foo_t=3&commit=true&charset=utf-8" -F "myfile=@sample_jap_non_UTF-8"

One problem is that you are giving big5 encoded text to Solr and saying that it's UTF8.
Here's one way to actually tell solr what the encoding of the text you are sending is:

curl "http://localhost:8983/solr/update/extract?literal.id=doc1&uprefix=attr_&fmap.content=attr_content&fmap.div=foo_t&boost.foo_t=3&commit=true" --data-binary @sample_jap_non_UTF-8.txt -H 'Content-type:text/plain; charset=big5'

Now the problem appears that for some reason, this doesn't work...
Could you open a JIRA issue and attach your two test files?

-Yonik
http://lucidimagination.com