subject:"RE\: DataImportHandler\: Deleteing from index and db; lastIndexed id feature"

Re: DataImportHandler: Deleteing from index and db; lastIndexed id feature

2008-12-03 Thread Marc Sturlese


That's what I am trying to do. Thanks for the advice. Once I have it done I
will rise the issue and upload the patch.
 

Noble Paul നോബിള്‍ नोब्ळ् wrote:
 
 OK . I guess I see it.  I am thinking of exposing the writes to the
 properties file via an API.
 
 say Context#persist(key,value);
 
 
 This can write the data to the dataimport.properties.
 
 You must be able to retrieve that value by ${dataimport.persist.key}
 
 or through an API, Context.getPersistValue(key)
 
 You can raise an issue and give a patch and we can get it committed
 
 I guess this is what you wish to achieve
 
 --Noble
 
 
 
 On Wed, Dec 3, 2008 at 3:28 AM, Marc Sturlese [EMAIL PROTECTED]
 wrote:

 Do you mean the file used by dataimporthandler called
 dataimport.properties?
 If you mean this one it's writen at the end of the indexing proccess. The
 writen date will be used in the next indexation by delta-query to
 identify
 the new or modified rows from the database.

 What I am trying to do is instead of saving a timestamp save the last
 indexed id. Doing that, in the next execution I will start indexing from
 the
 last doc that was indexed in the previous indexation. But I am still a
 bit
 confused about how to do that...

 Noble Paul നോബിള്‍ नोब्ळ् wrote:

 delta-import file?


 On Wed, Dec 3, 2008 at 12:08 AM, Lance Norskog [EMAIL PROTECTED]
 wrote:
 Does the DIH delta feature rewrite the delta-import file for each set
 of
 rows? If it does not, that sounds like a bug/enhancement.
 Lance

 -Original Message-
 From: Noble Paul നോബിള്‍ नोब्ळ् [mailto:[EMAIL PROTECTED]
 Sent: Tuesday, December 02, 2008 8:51 AM
 To: solr-user@lucene.apache.org
 Subject: Re: DataImportHandler: Deleteing from index and db;
 lastIndexed
 id feature

 You can write the details to a file using a Transformer itself.

 It is wise to stick to the public API as far as possible. We will
 maintain back compat and your code will be usable w/ newer versions.


 On Tue, Dec 2, 2008 at 5:12 PM, Marc Sturlese [EMAIL PROTECTED]
 wrote:

 Thanks I really apreciate your help.

 I didn't explain myself so well in here:

 2.-This is probably my most difficult goal.
 Deltaimport reads a timestamp from the dataimport.properties and
 modify/add all documents from db wich were inserted after that date.
 What I want is to be able to save in the field the id of the last
 idexed doc. So in the next time I ejecute the indexer make it start
 indexing from that last indexed id doc.
 You can use a Transformer to write something to the DB.
 Context#getDataSource(String) for each row

 When I said:

 be able to save in the field the id of the last idexed doc
 I made a mistake, wanted to mean :

 be able to save in the file (dataimport.properties) the id of the last
 indexed doc.
 The point would be to do my own deltaquery indexing from the last doc
 indexed id instead of the timestamp.
 So I think this would not work in that case (it's my mistake because
 of the bad explanation):

You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

 It is because I was saying:
 I think I should begin modifying the SolrWriter.java and
 DocBuilder.java.
 Creating functions like getStartTime, persistStartTime... for ID
 control

 I am in the correct direction?
  Sorry for my englis and thanks in advance


 Noble Paul നോബിള്‍ नोब्ळ् wrote:

 On Tue, Dec 2, 2008 at 3:01 PM, Marc Sturlese
 [EMAIL PROTECTED]
 wrote:

 Hey there,

 I have my dataimporthanlder almost completely configured. I am
 missing three goals. I don't think I can reach them just via xml
 conf or transformer and sqlEntitProcessor plugin. But need to be
 sure of that.
 If there's no other way I will hack some solr source classes, would
 like to know the best way to do that. Once I have it solved, I can
 upload or post the source in the forum in case someone think it can
 be helpful.

 1.- Every time I execute dataimporthandler (to index data from a
 db), at the start time or end time I need to delete some expired
 documents. I have to delete them from the database and from the
 index. I know wich documents must be deleted because of a field in
 the db that says it. Would not like to delete first all from DB or
 first all from index but one from index and one from doc every time.

 You can override the init() destroy() of the SqlEntityProcessor and
 use it as the processor for the root entity. At this point you can
 run the necessary db queries and solr delete queries . look at
 Context#getSolrCore() and Context#getdataSource(String)


 The delete mark is setted as an update in the db row so I think I
 could use deltaImport. Don't know If deletedPkQuery is the way to do
 that. Can not find so much information about how to make it work. As
 deltaQuery modifies docs (delete old and insert new) I supose it
 must be a easy way to do this just doing the delete and not the new
 insert.
 deletedPkQuery does everything first. it runs the query and uses that
 to identify the deleted rows.

 2

Re: DataImportHandler: Deleteing from index and db; lastIndexed id feature

2008-12-03 Thread Noble Paul നോബിള്‍ नोब्ळ्

Good.
We need usecases like these and contributions from users .

This is a win-win
you will not have to manage the code yourself once it is checked in
As we have more eyes on the DIH code it will also improve

Thanks a lot,
Noble

On Wed, Dec 3, 2008 at 1:49 PM, Marc Sturlese [EMAIL PROTECTED] wrote:

 That's what I am trying to do. Thanks for the advice. Once I have it done I
 will rise the issue and upload the patch.


 Noble Paul നോബിള്‍ नोब्ळ् wrote:

 OK . I guess I see it.  I am thinking of exposing the writes to the
 properties file via an API.

 say Context#persist(key,value);


 This can write the data to the dataimport.properties.

 You must be able to retrieve that value by ${dataimport.persist.key}

 or through an API, Context.getPersistValue(key)

 You can raise an issue and give a patch and we can get it committed

 I guess this is what you wish to achieve

 --Noble



 On Wed, Dec 3, 2008 at 3:28 AM, Marc Sturlese [EMAIL PROTECTED]
 wrote:

 Do you mean the file used by dataimporthandler called
 dataimport.properties?
 If you mean this one it's writen at the end of the indexing proccess. The
 writen date will be used in the next indexation by delta-query to
 identify
 the new or modified rows from the database.

 What I am trying to do is instead of saving a timestamp save the last
 indexed id. Doing that, in the next execution I will start indexing from
 the
 last doc that was indexed in the previous indexation. But I am still a
 bit
 confused about how to do that...

 Noble Paul നോബിള്‍ नोब्ळ् wrote:

 delta-import file?


 On Wed, Dec 3, 2008 at 12:08 AM, Lance Norskog [EMAIL PROTECTED]
 wrote:
 Does the DIH delta feature rewrite the delta-import file for each set
 of
 rows? If it does not, that sounds like a bug/enhancement.
 Lance

 -Original Message-
 From: Noble Paul നോബിള്‍ नोब्ळ् [mailto:[EMAIL PROTECTED]
 Sent: Tuesday, December 02, 2008 8:51 AM
 To: solr-user@lucene.apache.org
 Subject: Re: DataImportHandler: Deleteing from index and db;
 lastIndexed
 id feature

 You can write the details to a file using a Transformer itself.

 It is wise to stick to the public API as far as possible. We will
 maintain back compat and your code will be usable w/ newer versions.


 On Tue, Dec 2, 2008 at 5:12 PM, Marc Sturlese [EMAIL PROTECTED]
 wrote:

 Thanks I really apreciate your help.

 I didn't explain myself so well in here:

 2.-This is probably my most difficult goal.
 Deltaimport reads a timestamp from the dataimport.properties and
 modify/add all documents from db wich were inserted after that date.
 What I want is to be able to save in the field the id of the last
 idexed doc. So in the next time I ejecute the indexer make it start
 indexing from that last indexed id doc.
 You can use a Transformer to write something to the DB.
 Context#getDataSource(String) for each row

 When I said:

 be able to save in the field the id of the last idexed doc
 I made a mistake, wanted to mean :

 be able to save in the file (dataimport.properties) the id of the last
 indexed doc.
 The point would be to do my own deltaquery indexing from the last doc
 indexed id instead of the timestamp.
 So I think this would not work in that case (it's my mistake because
 of the bad explanation):

You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

 It is because I was saying:
 I think I should begin modifying the SolrWriter.java and
 DocBuilder.java.
 Creating functions like getStartTime, persistStartTime... for ID
 control

 I am in the correct direction?
  Sorry for my englis and thanks in advance


 Noble Paul നോബിള്‍ नोब्ळ् wrote:

 On Tue, Dec 2, 2008 at 3:01 PM, Marc Sturlese
 [EMAIL PROTECTED]
 wrote:

 Hey there,

 I have my dataimporthanlder almost completely configured. I am
 missing three goals. I don't think I can reach them just via xml
 conf or transformer and sqlEntitProcessor plugin. But need to be
 sure of that.
 If there's no other way I will hack some solr source classes, would
 like to know the best way to do that. Once I have it solved, I can
 upload or post the source in the forum in case someone think it can
 be helpful.

 1.- Every time I execute dataimporthandler (to index data from a
 db), at the start time or end time I need to delete some expired
 documents. I have to delete them from the database and from the
 index. I know wich documents must be deleted because of a field in
 the db that says it. Would not like to delete first all from DB or
 first all from index but one from index and one from doc every time.

 You can override the init() destroy() of the SqlEntityProcessor and
 use it as the processor for the root entity. At this point you can
 run the necessary db queries and solr delete queries . look at
 Context#getSolrCore() and Context#getdataSource(String)


 The delete mark is setted as an update in the db row so I think I
 could use deltaImport. Don't know If deletedPkQuery is the way to do
 that. Can not find so

Re: DataImportHandler: Deleteing from index and db; lastIndexed id feature

2008-12-02 Thread Noble Paul നോബിള്‍ नोब्ळ्

On Tue, Dec 2, 2008 at 3:01 PM, Marc Sturlese [EMAIL PROTECTED] wrote:

Hey there,

I have my dataimporthanlder almost completely configured. I am missing three
goals. I don't think I can reach them just via xml conf or transformer and
sqlEntitProcessor plugin. But need to be sure of that.
If there's no other way I will hack some solr source classes, would like to
know the best way to do that. Once I have it solved, I can upload or post
the source in the forum in case someone think it can be helpful.

1.- Every time I execute dataimporthandler (to index data from a db), at the
start time or end time I need to delete some expired documents. I have to
delete them from the database and from the index. I know wich documents must
be deleted because of a field in the db that says it. Would not like to
delete first all from DB or first all from index but one from index and one
from doc every time.

You can override the init() destroy() of the SqlEntityProcessor and
use it as the processor for the root entity. At this point you can run
the necessary db queries and solr delete queries . look at
Context#getSolrCore() and Context#getdataSource(String)

The delete mark is setted as an update in the db row so I think I could
use deltaImport. Don't know If deletedPkQuery is the way to do that. Can not
find so much information about how to make it work. As deltaQuery modifies
docs (delete old and insert new) I supose it must be a easy way to do this
just doing the delete and not the new insert.
deletedPkQuery does everything first. it runs the query and uses that
to identify the deleted rows.

2.-This is probably my most difficult goal.
Deltaimport reads a timestamp from the dataimport.properties and modify/add
all documents from db wich were inserted after that date. What I want is to
be able to save in the field the id of the last idexed doc. So in the next
time I ejecute the indexer make it start indexing from that last indexed id
doc.
You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

The point of doing this is that if I do a full import from a db with lots of
rows the app could encounter a problem in the middle of the execution and
abort the process. As deltaquey works I would have to restart the execution
from the begining. Having this new functionality I could optimize the index
and start from the last indexed doc.
I think I should begin modifying the SolrWriter.java and DocBuilder.java.
Creating functions like getStartTime, persistStartTime... for ID control

3.-I commented before about this last point. I want to give boost to doc
fields at indexing time.
Adding fieldboost is a planned item.

It must work as follows .
Add a special value $fieldBoost.fieldname to the row map

And DocBuilder should respect that. You can raise a bug and we can
commit it soon.
How can I do to rise a bug?
https://issues.apache.org/jira/secure/CreateIssue!default.jspa

Thanks in advance

--
View this message in context:
http://www.nabble.com/DataImportHandler%3A-Deleteing-from-index-and-db--lastIndexed-id-feature-tp20788755p20788755.html
Sent from the Solr - User mailing list archive at Nabble.com.

--
--Noble Paul

Re: DataImportHandler: Deleteing from index and db; lastIndexed id feature

2008-12-02 Thread Marc Sturlese

Thanks I really apreciate your help.

I didn't explain myself so well in here:

2.-This is probably my most difficult goal.
Deltaimport reads a timestamp from the dataimport.properties and
modify/add
all documents from db wich were inserted after that date. What I want is
to
be able to save in the field the id of the last idexed doc. So in the next
time I ejecute the indexer make it start indexing from that last indexed
id
doc.
You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

When I said:

be able to save in the field the id of the last idexed doc
I made a mistake, wanted to mean :

be able to save in the file (dataimport.properties) the id of the last
indexed doc.
The point would be to do my own deltaquery indexing from the last doc
indexed id instead of the timestamp.
So I think this would not work in that case (it's my mistake because of the
bad explanation):

You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

It is because I was saying:
I think I should begin modifying the SolrWriter.java and DocBuilder.java.
Creating functions like getStartTime, persistStartTime... for ID control

I am in the correct direction?
Sorry for my englis and thanks in advance

Noble Paul നോബിള്‍ नोब्ळ् wrote:

On Tue, Dec 2, 2008 at 3:01 PM, Marc Sturlese [EMAIL PROTECTED]
wrote:

Hey there,

I have my dataimporthanlder almost completely configured. I am missing
three
goals. I don't think I can reach them just via xml conf or transformer
and
sqlEntitProcessor plugin. But need to be sure of that.
If there's no other way I will hack some solr source classes, would like
to
know the best way to do that. Once I have it solved, I can upload or post
the source in the forum in case someone think it can be helpful.

1.- Every time I execute dataimporthandler (to index data from a db), at
the
start time or end time I need to delete some expired documents. I have to
delete them from the database and from the index. I know wich documents
must
be deleted because of a field in the db that says it. Would not like to
delete first all from DB or first all from index but one from index and
one
from doc every time.

The delete mark is setted as an update in the db row so I think I could
use deltaImport. Don't know If deletedPkQuery is the way to do that. Can
not
find so much information about how to make it work. As deltaQuery
modifies
docs (delete old and insert new) I supose it must be a easy way to do
this
just doing the delete and not the new insert.
deletedPkQuery does everything first. it runs the query and uses that
to identify the deleted rows.

2.-This is probably my most difficult goal.
Deltaimport reads a timestamp from the dataimport.properties and
modify/add
all documents from db wich were inserted after that date. What I want is
to
be able to save in the field the id of the last idexed doc. So in the
next
time I ejecute the indexer make it start indexing from that last indexed
id
doc.
You can use a Transformer to write something to the DB.
Context#getDataSource(String) for each row

The point of doing this is that if I do a full import from a db with lots
of
rows the app could encounter a problem in the middle of the execution and
abort the process. As deltaquey works I would have to restart the
execution
from the begining. Having this new functionality I could optimize the
index
and start from the last indexed doc.
I think I should begin modifying the SolrWriter.java and DocBuilder.java.
Creating functions like getStartTime, persistStartTime... for ID control

3.-I commented before about this last point. I want to give boost to doc
fields at indexing time.
Adding fieldboost is a planned item.

It must work as follows .
Add a special value $fieldBoost.fieldname to the row map

And DocBuilder should respect that. You can raise a bug and we can
commit it soon.
How can I do to rise a bug?
https://issues.apache.org/jira/secure/CreateIssue!default.jspa

Thanks in advance

--
--Noble Paul

--
View this message in context:
http://www.nabble.com/DataImportHandler%3A-Deleteing-from-index-and-db--lastIndexed-id-feature-tp20788755p20790542.html
Sent from the Solr - User mailing list archive at Nabble.com.

Re: DataImportHandler: Deleteing from index and db; lastIndexed id feature

2008-12-02 Thread Noble Paul നോബിള്‍ नोब्ळ्

You can write the details to a file using a Transformer itself.

It is wise to stick to the public API as far as possible. We will
maintain back compat and your code will be usable w/ newer versions.

On Tue, Dec 2, 2008 at 5:12 PM, Marc Sturlese [EMAIL PROTECTED] wrote: