Hi Amr,
One option is to include transaction id in your documents and do delete
in case of failed transaction. It is not cheap option - additional field
if you don't have something to use to identify transaction. Assuming
rollback will not happen to often deleting is not that big issue.
Thanks,
Emir
--
Monitoring * Alerting * Anomaly Detection * Centralized Log Management
Solr & Elasticsearch Support * http://sematext.com/
On 12.05.2015 22:37, Amr Ali wrote:
Please check this
https://lucene.apache.org/solr/4_1_0/solr-solrj/org/apache/solr/client/solrj/SolrServer.html#rollback()
"Note that this is not a true rollback as in databases. Content you have previously
added may have been committed due to autoCommit, buffer full, other client performing a
commit etc."
It is not a real rollback if you have two threads T1 and T2 that are adding. If T1 is
adding 500 and T2 is adding 3 then T2 will commit its 3 document PLUS the documents added
by T1 (because T2 will finish add/commit before T2 due to the documents number). Solr
transactions are "server side" only.
--
Regards,
Amr Ali
City stars capital 8 - 3rd floor, Nasr city, Cairo, Egypt
Ext: 278
-----Original Message-----
From: Jack Krupansky [mailto:jack.krupan...@gmail.com]
Sent: Tuesday, May 12, 2015 10:24 PM
To: solr-user@lucene.apache.org
Subject: Re: Transactional Behavior
Solr does have a <rollback/> command, but it is an expert feature and not so
clear how it works in SolrCloud.
See:
https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Index+Handlers
and
https://wiki.apache.org/solr/UpdateXmlMessages#A.22rollback.22
-- Jack Krupansky
On Tue, May 12, 2015 at 12:58 PM, Amr Ali <amr_...@siliconexpert.com> wrote:
Hello,
I have a business case in which I need to be able for the rollback.
When I tried add/commit I was not able to prevent other threads that
write to a given Solr core from committing everything. I also tried
indexwriter but Solr did not get changes until we restart it.
--
Regards,
Amr Ali
City stars capital 8 - 3rd floor, Nasr city, Cairo, Egypt
Ext: 278
--
Monitoring * Alerting * Anomaly Detection * Centralized Log Management
Solr & Elasticsearch Support * http://sematext.com/
