'Re: Review Request 120438: improve baloo file indexing overhead by ~2.5x'

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List:       kde-devel
Subject:    Re: Review Request 120438: improve baloo file indexing overhead by ~2.5x
From:       Christian Stroetmann <stroetmann () ontolinux ! com>
Date:       2015-02-26 11:45:37
Message-ID: 54EF0761.7040009 () ontolinux ! com
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Hey Vishesh

On 26.Feb.2015 12:34, Vishesh Handa wrote:
> Hey Christian
>
> On Thu, Feb 26, 2015 at 11:51 AM, Christian Stroetmann 
> <stroetmann@ontolinux.com <mailto:stroetmann@ontolinux.com>> wrote:
>
>     On 04.Feb.2015 17:26, Vishesh Handa wrote:
>
>     Aloha
>
>>     In Baloo, we're currently in the process of moving away from both
>>     xapian and sqlite.
>>
>
>     I tried to find informations about:
>     1. Baloo, but there is a dead link on the wiki of KDE, and
>     2. the substitutions of Xapian and SQLite.
>
>     Could somebody by so kind and answer my questions:
>     1. Where can I find more informations about Baloo?
>
>
> There isn't much official documentation about Baloo. What are you 
> specifically looking for? Perhaps we can collectively write some :)

Sorry, but there are some reasons so that I cannot help with writing, 
but I would read it to give a feedback.

>
>     2. On what search engine(s) and datastore(s) is Baloo based now
>     resp. will be based instead?
>
>
> We have been evaluating both 'lucene++' (lucene branch) and writing 
> our own engine on top of 'lmdb', which is key-value store. 
> (feature/vhanda/lmdb). Currently, I'm leaning more towards lmdb, as it 
> gives us way more control over the entire system. But I still have to 
> perform comprehensive benchmarks.

What was wrong with Xapian?

>
> -- 
> Vishesh Handa

Christian Stroetmann

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    Hey Vishesh<br>
    <br>
    On 26.Feb.2015 12:34, Vishesh Handa wrote:
    <blockquote
cite="mid:CAOPTMKDoWXGL0joBZy1fdn=NhMgSEXjGGnCx=RbQz0J=E1=rDw@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hey Christian<br>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Thu, Feb 26, 2015 at 11:51 AM,
            Christian Stroetmann <span dir="ltr">&lt;<a
                moz-do-not-send="true"
                href="mailto:stroetmann@ontolinux.com" \
target="_blank">stroetmann@ontolinux.com</a>&gt;</span>  wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div bgcolor="#FFFFFF" text="#000000"> On 04.Feb.2015
                17:26, Vishesh Handa wrote:<br>
                <br>
                Aloha<span class=""><br>
                  <br>
                  <blockquote type="cite">
                    <div
                      style="font-family:Verdana,Arial,Helvetica,Sans-Serif">
                      <pre style="white-space:pre-wrap;word-wrap:break-word"><p \
style="padding:0pt;margin:0pt;line-height:inherit;white-space:inherit">In Baloo, \
we're currently in the process of moving away from both xapian and sqlite.</p></pre>  \
</div>  </blockquote>
                  <br>
                </span> I tried to find informations about:<br>
                1. Baloo, but there is a dead link on the wiki of KDE,
                and<br>
                2. the substitutions of Xapian and SQLite.<br>
                <br>
                Could somebody by so kind and answer my questions:<br>
                1. Where can I find more informations about Baloo?<br>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>There isn't much official documentation about Baloo.
              What are you specifically looking for? Perhaps we can
              collectively write some :)</div>
          </div>
        </div>
      </div>
    </blockquote>
    <br>
    Sorry, but there are some reasons so that I cannot help with
    writing, but I would read it to give a feedback.<br>
    <br>
    <blockquote
cite="mid:CAOPTMKDoWXGL0joBZy1fdn=NhMgSEXjGGnCx=RbQz0J=E1=rDw@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra">
          <div class="gmail_quote">
            <div><br>
            </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div bgcolor="#FFFFFF" text="#000000"> 2. On what search
                engine(s) and datastore(s) is Baloo based now resp. will
                be based instead?  <br>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>We have been evaluating both 'lucene++' (lucene branch)
              and writing our own engine on top of 'lmdb', which is
              key-value store. (feature/vhanda/lmdb). Currently, I'm
              leaning more towards lmdb, as it gives us way more control
              over the entire system. But I still have to perform
              comprehensive benchmarks.</div>
          </div>
        </div>
      </div>
    </blockquote>
    <br>
    What was wrong with Xapian?<br>
    <br>
    <blockquote
cite="mid:CAOPTMKDoWXGL0joBZy1fdn=NhMgSEXjGGnCx=RbQz0J=E1=rDw@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra">
          <div><br>
          </div>
          -- <br>
          <div class="gmail_signature"><span
              style="color:rgb(192,192,192)">Vishesh Handa</span><br>
          </div>
        </div>
      </div>
    </blockquote>
    <br>
    Christian Stroetmann<br>
    <br>
  </body>
</html>

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