What you haven't told us is what you mean by "modify the index outside Solr". SolrJ? Using raw Lucene? Trying to modify things by writing your own codec? Standard Java I/O operations? Other?
You could use SolrJ to connect to an existing Solr server and both read and modify at will form your M/R jobs. But if you're thinking of trying to write/modify the segment files by raw I/O operations, good luck! I'm 99.99% certain that's going to cause you endless grief. Best, Erick On Tue, Aug 5, 2014 at 9:55 AM, Ali Nazemian <alinazem...@gmail.com> wrote: > Actually I am going to do some analysis on the solr data using map reduce. > For this purpose it might be needed to change some part of data or add new > fields from outside solr. > > > On Tue, Aug 5, 2014 at 5:51 PM, Shawn Heisey <s...@elyograg.org> wrote: > > > On 8/5/2014 7:04 AM, Ali Nazemian wrote: > > > I changed solr 4.9 to write index and data on hdfs. Now I am going to > > > connect to those data from the outside of solr for changing some of the > > > values. Could somebody please tell me how that is possible? Suppose I > am > > > using Hbase over hdfs for do these changes. > > > > I don't know how you could safely modify the index without a Lucene > > application or another instance of Solr, but if you do manage to modify > > the index, simply reloading the core or restarting Solr should cause it > > to pick up the changes. Either you would need to make sure that Solr > > never modifies the index, or you would need some way of coordinating > > updates so that Solr and the other application would never try to modify > > the index at the same time. > > > > Thanks, > > Shawn > > > > > > > -- > A.Nazemian >
