I am using org.apache.solr.client.solrj.impl.HttpSolrServer.HttpSolrServer for calling solr.
For sequential delete and add operations , I am hitting solr like
solr.addBeans(<solrDocs>);
solr.deleteByQuery(<Query>)
solr.commit();
Is there anyway, I can achieve same in one solr call, like solr.execute(addbean, deleteByQuery1)?
I know that multiple commands may be contained in one message as per solr wiki. I what to know that how to achieve same in solrj and any other java library.
What I want to achieve by this ?
Atomic opertion.
Lets have a case:There are two process(or thread) P1 and P2. Each perform Add(corresponding A1 and A2) and Delete(D1 and D2) operation. Let the sequence be like this :
D1 (Deletion of docs by process P1)
D2 (Deletion of docs by process P2)
A2 (Addition of docs by process P2)
P2.commit -> (This will make D1 commited in Solr too)
A1 (Addition of docs by process P1) : Now even if it failed, D1 is not going to rollback (beacuse of P2.commit)
What I want is to rollback P1.D1
