Thanks for the pointer, Lance! Is there an example of this somewhere?
-Peter
On Jul 31, 2010, at 3:13 PM, Lance Norskog wrote:
> Ah! You're not just highlighting, you're snippetizing. This makes it easier.
>
> Highlighting does not stream- it pulls the entire stored contents into
> one string and then pulls out the snippet. If you want this to be
> fast, you have to split up the text into small pieces and only
> snippetize from the most relevant text. So, separate documents with a
> common group id for the document it came from. You might have to do 2
> queries to achieve what you want, but the second query for the same
> query will be blindingly fast. Often <1ms.
>
> Good luck!
>
> Lance
>
> On Sat, Jul 31, 2010 at 1:12 PM, Peter Spam <ps...@mac.com> wrote:
>> However, I do need to search the entire document, or else the highlighting
>> will sometimes be blank :-(
>> Thanks!
>>
>> - Peter
>>
>> ps. sorry for the many responses - I'm rushing around trying to get this
>> working.
>>
>> On Jul 31, 2010, at 1:11 PM, Peter Spam wrote:
>>
>>> Correction - it went from 17 seconds to 10 seconds - I was changing the
>>> hl.regex.maxAnalyzedChars the first time.
>>> Thanks!
>>>
>>> -Peter
>>>
>>> On Jul 31, 2010, at 1:06 PM, Peter Spam wrote:
>>>
>>>> On Jul 30, 2010, at 1:16 PM, Peter Karich wrote:
>>>>
>>>>> did you already try other values for hl.maxAnalyzedChars=2147483647
>>>>
>>>> Yes, I tried dropping it down to 21, but it didn't have much of an impact
>>>> (one search I just tried went from 17 seconds to 15.8 seconds, and this is
>>>> an 8-core Mac Pro with 6GB RAM - 4GB for java).
>>>>
>>>>> ? Also regular expression highlighting is more expensive, I think.
>>>>> What does the 'fuzzy' variable mean? If you use this to query via
>>>>> "~someTerm" instead "someTerm"
>>>>> then you should try the trunk of solr which is a lot faster for fuzzy or
>>>>> other wildcard search.
>>>>
>>>> "fuzzy" could be set to "*" but isn't right now.
>>>>
>>>> Thanks for the tips, Peter - this has been very frustrating!
>>>>
>>>>
>>>> - Peter
>>>>
>>>>> Regards,
>>>>> Peter.
>>>>>
>>>>>> Data set: About 4,000 log files (will eventually grow to millions).
>>>>>> Average log file is 850k. Largest log file (so far) is about 70MB.
>>>>>>
>>>>>> Problem: When I search for common terms, the query time goes from under
>>>>>> 2-3 seconds to about 60 seconds. TermVectors etc are enabled. When I
>>>>>> disable highlighting, performance improves a lot, but is still slow for
>>>>>> some queries (7 seconds). Thanks in advance for any ideas!
>>>>>>
>>>>>>
>>>>>> -Peter
>>>>>>
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>
>>>>>> 4GB RAM server
>>>>>> % java -Xms2048M -Xmx3072M -jar start.jar
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>
>>>>>> schema.xml changes:
>>>>>>
>>>>>> <fieldType name="text_pl" class="solr.TextField">
>>>>>> <analyzer>
>>>>>> <tokenizer class="solr.WhitespaceTokenizerFactory"/>
>>>>>> <filter class="solr.LowerCaseFilterFactory"/>
>>>>>> <filter class="solr.WordDelimiterFilterFactory" generateWordParts="0"
>>>>>> generateNumberParts="0" catenateWords="0" catenateNumbers="0"
>>>>>> catenateAll="0" splitOnCaseChange="0"/>
>>>>>> </analyzer>
>>>>>> </fieldType>
>>>>>>
>>>>>> ...
>>>>>>
>>>>>> <field name="body" type="text_pl" indexed="true" stored="true"
>>>>>> multiValued="false" termVectors="true" termPositions="true"
>>>>>> termOffsets="true" />
>>>>>> <field name="timestamp" type="date" indexed="true" stored="true"
>>>>>> default="NOW" multiValued="false"/>
>>>>>> <field name="version" type="string" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="device" type="string" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="filename" type="string" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="filesize" type="long" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="pversion" type="int" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="first2md5" type="string" indexed="false" stored="true"
>>>>>> multiValued="false"/>
>>>>>> <field name="ckey" type="string" indexed="true" stored="true"
>>>>>> multiValued="false"/>
>>>>>>
>>>>>> ...
>>>>>>
>>>>>> <dynamicField name="*" type="ignored" multiValued="true" />
>>>>>> <defaultSearchField>body</defaultSearchField>
>>>>>> <solrQueryParser defaultOperator="AND"/>
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>
>>>>>> solrconfig.xml changes:
>>>>>>
>>>>>> <maxFieldLength>2147483647</maxFieldLength>
>>>>>> <ramBufferSizeMB>128</ramBufferSizeMB>
>>>>>>
>>>>>> -------------------------------------------------------------------------------------------------------------------------------------
>>>>>>
>>>>>> The query:
>>>>>>
>>>>>> rowStr = "&rows=10"
>>>>>> facet =
>>>>>> "&facet=true&facet.limit=10&facet.field=device&facet.field=ckey&facet.field=version"
>>>>>> fields = "&fl=id,score,filename,version,device,first2md5,filesize,ckey"
>>>>>> termvectors = "&tv=true&qt=tvrh&tv.all=true"
>>>>>> hl = "&hl=true&hl.fl=body&hl.snippets=1&hl.fragsize=400"
>>>>>> regexv = "(?m)^.*\n.*\n.*$"
>>>>>> hl_regex = "&hl.regex.pattern=" + CGI::escape(regexv) +
>>>>>> "&hl.regex.slop=1&hl.fragmenter=regex&hl.regex.maxAnalyzedChars=2147483647&hl.maxAnalyzedChars=2147483647"
>>>>>> justq = '&q=' + CGI::escape('body:' + fuzzy + p['q'].to_s.gsub(/\\/,
>>>>>> '').gsub(/([:~!<>="])/,'\\\\\1') + fuzzy + minLogSizeStr)
>>>>>>
>>>>>> thequery = '/solr/select?timeAllowed=5000&wt=ruby' + (p['fq'].empty? ?
>>>>>> '' : ('&fq='+p['fq'].to_s) ) + justq + rowStr + facet + fields +
>>>>>> termvectors + hl + hl_regex
>>>>>>
>>>>>> baseurl = '/cgi-bin/search.rb?q=' + CGI::escape(p['q'].to_s) + '&rows='
>>>>>> + p['rows'].to_s + '&minLogSize=' + p['minLogSize'].to_s
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> http://karussell.wordpress.com/
>>>>>
>>>>
>>>
>>
>>
>
>
>
> --
> Lance Norskog
> goks...@gmail.com
