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Subject: Re: Next steps...
Date: Wed, 21 Aug 2013 15:08:33 +0200
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On 21 ao=FBt 2013, at 11:47, Kiran Ayyagari <kayyagari@apache.org> =
wrote:

>=20
>=20
>=20
> On Wed, Aug 21, 2013 at 1:38 PM, Emmanuel L=E9charny =
<elecharny@gmail.com> wrote:
> Hi guys,
>=20
> as I'm going to be off for one week, and as we just cuut a new =
reelase,
> I'd like to share some random thoughts about the server, the API,
> Mavibot and some other aspects of our project, where we are now, and
> what remains to be done in thenear future...
>=20
> First, I think we are slowly but consistently closing the gap to a
> 2.0-RC1. The last release was mainly about fixing some bugs, and the
> next one is probably the first RC. What remains to be done in order to
> cut this RC1 ?
>=20
> ApacheDS
> --------
> o Make Mavibot a first class partition (althouh still experimental). =
It
> should be possible for anyone to configure the server so that the
> partition uses either JDBM or Mavibot, without having to use any weird
> JVM options. This is a work in progress, Kiran already pushed some =
code
> that makes it possible to declare a Mavibot partition.
> o Avoid the cloning of entries we are returning
> o Check the bug list and fix the low hanging fruits
>=20
> Mavibot
> -------
> o make the handling of multiple values more performant. We shuld =
define
> a threshold after which we use a subBtree, instead of creating a
> subBtree everytime
> o improve the performance of writes : we are updating the BTree =
headers
> and teh RM headers after each phisical page update, whihc is adding
> ahuge penalty
> o complete the bulk load implementation
>=20
> API
> ---
> Not too much in this area. We are close to completion, at least for =
1.0.
> The doco is still really poor...
>=20
> Studio
> ------
> o Add the support of ADS 2.0-RC1
> o Add support of Mavibot partition
>=20
> That's all for the short term tasks, as I can see them. I may have
> missed some, so please complete this list.
>=20
> Otherwise, in a middle term vision, we have many areas where we can
> improve the server and the other projects :
>=20
> ApacheDS
> --------
> o switch to MINA 3
> o review the way we handle writes : we should wait for the messageSent
> event before writing a new message, otherwise we cumulate them in =
memory
> o review the encoding part : using a pre-allocated buffer stored in a
> ThreadLocal storage would save us some CPU cycle, as we could get rid =
of
> the allocation of a buffer
> o review the ACI subsystem
> o fix the administrative model, which is not complete
> o add the delta-syncrepl protocol for the MMR subsystem
> o implement the missing LDAP entities (NameForm, DCR, DSR, MRU...)
> o make the server OSGi compliant
> o ditch JDBM as a backend
> o get rid of most of the locks used for JDBM
>=20
> API
> ---
> o implement the missing LDAP entities (NameForm, DCR, DSR, MRU...)
> o implement a better support for some other server schema (OpenLDAP,
> OpenDJ, AD, etc)
>=20
> Mavibot
> -------
> o implement the transaction support
> o manage MVCC free pages
> o add a checker and a fixer after a crash
>=20
> Studio
> ------
> o go for a full web based Studio
> o add configuration support for other servers
>=20
>=20
> This list is just limited, again, please add the items you think it's
> important to have.
> you have covered everything :)

+1.
Nothing much to add here.
Very thorough analysis of what's left to do in short and longer terms.

Regards,
Pierre-Arnaud


> o I would like to get eSCIMo done before 2.0 gets released (though =
this is not
>    included in ApacheDS distribution there will be support for easily =
including eSCIMo as a webapp)
> o there is some interest in having DHCP support in ApacheDS we might =
need to look
>    into that post 2.0  =20
>=20
> Comments very welcome !
>=20
> --
> Regards,
> Cordialement,
> Emmanuel L=E9charny
> www.iktek.com
>=20
>=20
>=20
>=20
> --=20
> Kiran Ayyagari
> http://keydap.com


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Diso-8859-1"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
"><br><div><div>On 21 ao=FBt 2013, at 11:47, Kiran Ayyagari &lt;<a =
href=3D"mailto:kayyagari@apache.org">kayyagari@apache.org</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><br><div=
 class=3D"gmail_quote">On Wed, Aug 21, 2013 at 1:38 PM, Emmanuel =
L=E9charny <span dir=3D"ltr">&lt;<a href=3D"mailto:elecharny@gmail.com" =
target=3D"_blank">elecharny@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hi guys,<br>
<br>
as I'm going to be off for one week, and as we just cuut a new =
reelase,<br>
I'd like to share some random thoughts about the server, the API,<br>
Mavibot and some other aspects of our project, where we are now, and<br>
what remains to be done in thenear future...<br>
<br>
First, I think we are slowly but consistently closing the gap to a<br>
2.0-RC1. The last release was mainly about fixing some bugs, and the<br>
next one is probably the first RC. What remains to be done in order =
to<br>
cut this RC1 ?<br>
<br>
ApacheDS<br>
--------<br>
o Make Mavibot a first class partition (althouh still experimental). =
It<br>
should be possible for anyone to configure the server so that the<br>
partition uses either JDBM or Mavibot, without having to use any =
weird<br>
JVM options. This is a work in progress, Kiran already pushed some =
code<br>
that makes it possible to declare a Mavibot partition.<br>
o Avoid the cloning of entries we are returning<br>
o Check the bug list and fix the low hanging fruits<br>
<br>
Mavibot<br>
-------<br>
o make the handling of multiple values more performant. We shuld =
define<br>
a threshold after which we use a subBtree, instead of creating a<br>
subBtree everytime<br>
o improve the performance of writes : we are updating the BTree =
headers<br>
and teh RM headers after each phisical page update, whihc is adding<br>
ahuge penalty<br>
o complete the bulk load implementation<br>
<br>
API<br>
---<br>
Not too much in this area. We are close to completion, at least for =
1.0.<br>
The doco is still really poor...<br>
<br>
Studio<br>
------<br>
o Add the support of ADS 2.0-RC1<br>
o Add support of Mavibot partition<br>
<br>
That's all for the short term tasks, as I can see them. I may have<br>
missed some, so please complete this list.<br>
<br>
Otherwise, in a middle term vision, we have many areas where we can<br>
improve the server and the other projects :<br>
<br>
ApacheDS<br>
--------<br>
o switch to MINA 3<br>
o review the way we handle writes : we should wait for the =
messageSent<br>
event before writing a new message, otherwise we cumulate them in =
memory<br>
o review the encoding part : using a pre-allocated buffer stored in =
a<br>
ThreadLocal storage would save us some CPU cycle, as we could get rid =
of<br>
the allocation of a buffer<br>
o review the ACI subsystem<br>
o fix the administrative model, which is not complete<br>
o add the delta-syncrepl protocol for the MMR subsystem<br>
o implement the missing LDAP entities (NameForm, DCR, DSR, MRU...)<br>
o make the server OSGi compliant<br>
o ditch JDBM as a backend<br>
o get rid of most of the locks used for JDBM<br>
<br>
API<br>
---<br>
o implement the missing LDAP entities (NameForm, DCR, DSR, MRU...)<br>
o implement a better support for some other server schema (OpenLDAP,<br>
OpenDJ, AD, etc)<br>
<br>
Mavibot<br>
-------<br>
o implement the transaction support<br>
o manage MVCC free pages<br>
o add a checker and a fixer after a crash<br>
<br>
Studio<br>
------<br>
o go for a full web based Studio<br>
o add configuration support for other servers<br>
<br>
<br>
This list is just limited, again, please add the items you think =
it's<br>
important to have.<br></blockquote><div>you have covered everything =
:)<br></div></div></div></div></blockquote><div><br></div><div>+1.</div><d=
iv>Nothing much to add here.</div><div>Very thorough analysis of what's =
left to do in short and longer =
terms.</div><div><br></div><div>Regards,</div><div>Pierre-Arnaud</div><div=
><br></div><br><blockquote type=3D"cite"><div dir=3D"ltr"><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><div>o I would like to =
get eSCIMo done before 2.0 gets released (though this is =
not<br></div><div>&nbsp;&nbsp; included in ApacheDS distribution there =
will be support for easily including eSCIMo as a webapp)<br>
</div><div>o there is some interest in having DHCP support in ApacheDS =
we might need to look<br></div><div>&nbsp;&nbsp; into that post 2.0 =
&nbsp; <br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">

<br>
Comments very welcome !<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
--<br>
Regards,<br>
Cordialement,<br>
Emmanuel L=E9charny<br>
<a href=3D"http://www.iktek.com/" target=3D"_blank">www.iktek.com</a><br>
<br>
</font></span></blockquote></div><br><br clear=3D"all"><br>-- <br>Kiran =
Ayyagari<br><a href=3D"http://keydap.com/" =
target=3D"_blank">http://keydap.com</a>
</div></div>
</blockquote></div><br></body></html>=

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