Hi,

1.) I created a core and tried to simplify the managed-schema file. But if
> I remove all "unecessary" fields/fieldtypes, I get errors like: field
> "_version_" is missing, type "boolean" is missing and so on. Why do I have
> to define this types/fields? Which fields/fieldtypes are required?


Solr expects the primitive field names and types in the schema. Though a
better explanation should be there. "_version_" and a unique id field is
mandatory for each document as "_version_" contains the current version of
the document utilised in sync across nodes and atomic updation of the
documents.

 2.) Can I modify the managed-schema remotly/by program e.g. with a post

request or only by editing the managed-schema file directly?

Sure, Schema API is available to us for a while:
https://lucene.apache.org/solr/guide/6_6/schema-api.html

3.) When I have a service(solrnet client) that pushes a file from a
> fileserver to solr, will it cause two times traffic? (from the fileserver
> to my service and from the service to solr?) Is there a chance to index the
> file direct? (I need to add additional attributes to the index document)


Two times traffic? where? Solr will receive the docs once so we are good at
that part. Please utilize the SolrJ to index documents if possible, as it
is most updates one, if you are on solrcloud, use CloudSolrJClient.
Regarding index files direct, you can utilize the DIH (DataImportHandler),
depends on the file format, its csv, xml, json, but mind it is single
threaded.

Hope this clarifies some of it.

Amrit Sarkar
Search Engineer
Lucidworks, Inc.
415-589-9269
www.lucidworks.com
Twitter http://twitter.com/lucidworks
LinkedIn: https://www.linkedin.com/in/sarkaramrit2

On Fri, Oct 13, 2017 at 3:10 PM, startrekfan <startrekfa...@freenet.de>
wrote:

> Hello,
>
> I have some Solr related questions:
>
> 1.) I created a core and tried to simplify the managed-schema file. But if
> I remove all "unecessary" fields/fieldtypes, I get errors like: field
> "_version_" is missing, type "boolean" is missing and so on. Why do I have
> to define this types/fields? Which fields/fieldtypes are required?
>
> 2.) Can I modify the managed-schema remotly/by program e.g. with a post
> request or only by editing the managed-schema file directly?
>
> 3.) When I have a service(solrnet client) that pushes a file from a
> fileserver to solr, will it cause two times traffic? (from the fileserver
> to my service and from the service to solr?) Is there a chance to index the
> file direct? (I need to add additional attributes to the index document)
>
> Thank you
>

Reply via email to