when changing hibernate index location (lucene) at runtime index is not getting stored on new location

Question

I have requirement in my application where we need to store index on the bases of user so I am trying to change location at runtime, but index is not getting stored on new location and if I am giving same location in config file then it is getting stored

I am using following code to change location

LocalSessionFactoryBean localSessionFactoryBean

localSessionFactoryBean.getConfiguration() .setProperty("hibernate.search.default.indexBase", "New_loc") 
localSessionFactoryBean.getObject().getCurrentSession() //on this session object i am doing DAO opertation .

Rest configuration I have given in config file. I have invested my 3 days to find the solution for this but no success. Any help would be really appreciated. My code to get session is following

protected Session getSession() {

        Configuration conf=sessionFactory.getConfiguration();


        conf.setProperty("hibernate.search.default.indexBase","c:\\testdata" /*CustomerContextHolder.getFile()!=null?CustomerContextHolder.getFile():defaultFileLocation*/);

        ContextHolder.getOrBuildSearchFactory(conf);
        return sessionFactory.getObject().getCurrentSession();
        //  sessionFactory.getObject().openSession();
    }

and Bean is following

<property name="hibernateProperties">
    <props>
        <prop key="hibernate.dialect">${hibernate.dialect}</prop>
        <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
        <prop key="hibernate.jdbc.batch_size">${hibernate.jdbc.batch_size}</prop>
        <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>  <!-- Options are [validate, create, update, create-drop] -->
         <!-- <prop key="hibernate.current_session_context_class">thread</prop> -->

        <!-- Connection pool size -->
        <prop key="hibernate.connection.pool_size">${hibernate.connection.pool_size}</prop>

    issue -->
        <prop key="hibernate.search.default.directory_provider">org.hibernate.search.store.impl.FSDirectoryProvider</prop>
        <prop key="hibernate.search.default.locking_strategy">single</prop>
    <prop key="hibernate.search.default.indexBase">c:\abc</prop>
        <prop key="hibernate.search.lucene_version">LUCENE_35</prop>
    </props>

</property>

Update Code :

Session getSession() {

        Configuration conf=sessionFactory.getConfiguration();

                conf.setProperty("hibernate.search.default.indexBase","c:\\testdata");
        //conf.configure(); Need to commented otherwise shwoing duplicate Property

        ServiceRegistry serviceRegistry= new ServiceRegistryBuilder().applySettings(
                conf.getProperties()).buildServiceRegistry();
        return   (Session) conf.buildSessionFactory(serviceRegistry).openSession();

    }

Have you tried calling `getOrBuildSearchFactory` of `ContextHolder`? e.g `ContextHolder.getOrBuildSearchFactory(config)` — Amogh, Jul 07 '14 at 06:04
after changing hibernate properties using `setProperty` you have to build sessionFactory again. — Amogh, Jul 07 '14 at 06:10
Thanks for comment so do i need to call(getOrBuildSearchFactory) this before localSessionFactoryBean.getObject().getCurrentSession() and after localSessionFactoryBean.getConfiguration() .setProperty("hibernate.search.default.indexBase", "New_loc").Will it make transaction issue becuasue i have tried with disconnecting curent session and then tried to opennew seesion using openSession then it give transection related errror — user1047873, Jul 07 '14 at 06:25
Hi really sorry for late reply!! I am not able to find ContextHolder in hibernate 4.1.0.Final version .Do we have something else in hibernate 4.1.0.Final — user1047873, Jul 07 '14 at 14:55

Amogh · Answer 1 · 2014-07-07T17:29:53.497

2

Try doing this : (For Hibernate 4.x)

Configuration cfg = localSessionFactoryBean.getConfiguration();
cfg .setProperty("hibernate.search.default.indexBase", "New_loc");
cfg.configure();
serviceRegistry = new ServiceRegistryBuilder().applySettings(
            cfg.getProperties()).build();
sessionFactory = cfg.buildSessionFactory(serviceRegistry);

edited Jul 07 '14 at 17:29

answered Jul 07 '14 at 08:23

Amogh

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There is one more issue which i found Some time my previous code works while some time it doesn't write data to index – user1047873 Jul 07 '14 at 15:52
@user1047873, code according to Hibernate 4.x is updated. This works for me – Amogh Jul 07 '14 at 17:30
@Amough :Really Thanks for your kind help .I will check this in evening will update you soon – user1047873 Jul 08 '14 at 02:56
Hi I have tried as you mentioned but still not success i have shared my code as well – user1047873 Jul 08 '14 at 14:35
I am using hibenate 4.1.0.Final – user1047873 Jul 09 '14 at 06:40

score 1 · Answer 2 · answered Jul 08 '14 at 09:39

1

I am not sure whether this dynamic changing of index base will work. Also rebuilding the factory seems dodgy. Did you have a look at index sharding - http://docs.jboss.org/hibernate/stable/search/reference/en-US/html_single/#advanced-features-dynamic-sharding. This should allow you to split data according to let's say a user id.

If sharding does not solve your problem, you maybe could refine your actual usecase. Maybe there is another solution.

answered Jul 08 '14 at 09:39

Hardy

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Thanks Let me check this as i am not aware about this – user1047873 Jul 08 '14 at 14:38
I am not able to update hibernate version on 4.3.0.Final and for shading i need to use this – user1047873 Jul 10 '14 at 05:26
@user1047873 shading? what do you mean? – Sanne Jul 10 '14 at 11:03
sorry my mistake it is dynamic sharding. – user1047873 Jul 10 '14 at 17:02

score 0 · Answer 3 · answered Aug 07 '14 at 10:06

0

After lot's of effor finally i figured out the reason for this.If i will close the sesson after each database write then only index file will get stored on new location .However this is not efficeint approach but this is how it works

answered Aug 07 '14 at 10:06

user1047873

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when changing hibernate index location (lucene) at runtime index is not getting stored on new location

3 Answers3