Hi all,
I am totally new to this group and of course so happy to join:)
So my question may be repetitive but I did not find how to search all
previous questions.
problem in one sentence:
to read from multiple cores (archive and active ones), write only to the
latest active core
using Solr and Haystack
I am designing a periodic indexing system, one core per months, of which
always the last two indexes are used to search on, and always the last one
is the active one for current indexing.
We are using Haystack to manage the communications with Solr.
We can use multiple cores in the settings.py in Haystack, that is totally
fine.
The problem is that in this case, as I have tested, both cores are getting
updated for new indexing.
Then I decided to use the "--using" parameter of Haystack to select which
backend to use for updating the index, sth like:
./manage.py update_index events.Event --age=24 --workers=4 --using=default
that in default part in the settigns.py file I have defined the active
core.
HAYSTACK_CONNECTIONS = {
'default': {
'ENGINE': 'haystack.backends.solr_backend.SolrEngine',
'URL': 'http://127.0.0.1:8983/solr/core_Feb',
},
'slave':{
'ENGINE': 'haystack.backends.solr_backend.SolrEngine',
'URL': 'http://127.0.0.1:8983/solr/core_Jan',
},
}
here core_Feb is the active core, or is going to be the active core.
then now I am not sure this way it will read from both. Now I can manage
the write part, but again problem with reading from multiple cores. What I
tested before for reading from multiple cores was like :
HAYSTACK_CONNECTIONS = {
'default': {
'ENGINE': 'haystack.backends.solr_backend.SolrEngine',
'URL': 'http://127.0.0.1:8983/solr/core_Feb',
'URL': 'http://127.0.0.1:8983/solr/core_Jan',
},
}
but in this case it will write in both! that I want to write only in the
core_Feb one.
Any help is highly appreciated,
Best,
Serwah
