[hibernate-dev] HSEARCH-598 (was: Beginner's tasks for Hibernate Search and Hibernate OGM)

[Sanne Grinovero]

Hi Guillaume,
I'm aware of the issue, and I wouldn't mind some help on it: it would
be better to fix the MassIndexer design to use a limited set of
threads than to expose more metadata information, don't you agree?

The reason for me to not have given a high priority to HSEARCH-598 are
  1) there are easy workarounds
  2) I have no tests

Writing an automated test is in this case I think 90% of the
complexity; if you would like to do that, I think I could fix it
quickly or at least propose many possible solutions.
Ideally for this to be included in 4.1.0.Final we should finish it
next week.. do you think you could help with it?

Sanne

On 1 March 2012 10:22, Guillaume Smet <guillaume.smet at gmail.com> wrote:
> Hi Emmanuel,
>
> Here is what I have in mind:
> - Providing a nice API to get the indexed classes. Currently I use
> something extracted from MassIndexerImpl#toRootEntities. We use it
> currently for our reindexAll implementation. As the MassIndexer uses
> too much threads and connections when you have a lot of entities, it
> allows us to limit this number by working an entity at a time. This
> one should be easy: the code is already written but it needs
> refactoring and a proper API.
>
> - https://hibernate.onjira.com/browse/HSEARCH-598 : this is the main
> issue why we need the above workaround. I'm pretty sure it could be
> possible to set a global maximum number of threads instead of a limit
> per entity which is a problem when you have a lot of indexed entities.
> Just to explain the problem, we have customers which don't authorize
> more than 20 connections to the database cluster for applications with
> only a few users. It's currently difficult to use the MassIndexer out
> of the box in this particular use case. I don't know the MassIndexer
> code well enough to know if it's an easy task or not but it might be.
>
> BTW, on the same subject, it might be a good idea to work together at
> Mix-IT in Lyon - I saw you've planned to speak here.
>
> --
> Guillaume
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