The reason for me to want to try it is because replication is not possible on the single machine, as the index size is around 350gb+another 400gb, and i dont have enough SSD to cover a replication from the master node. Also i have a theory and heard this as well from a presentation at the LR conference in Boston this past year, that multiple solr instances on one machine performs better than multiple machines, would be interesting to have solr have a "read only"/"listen" state to do no writing to the index, but keep referencing the index properties/version files.
On Fri, May 19, 2017 at 1:26 PM, Davis, Daniel (NIH/NLM) [C] < daniel.da...@nih.gov> wrote: > Better off to just do Replication to the slave using the replication > handler. > > However, if there is no network connectivity, e.g. this is an offsite > cold/warm spare, then here is a solution: > > The NAS likely supports some Copy-on-write/snapshotting capabilities. If > your systems people will work with you, you can use the replication/backup > handler to take a NAS snapshot just after hard commit, and then have the > snapshot replicated to another volume. I suspect Solr will have to be > started on the cold/warm spare when you do a failover to offsite, because I > know of no way to have the OS react to events when a snapshot is replicated > by the NAS. > > This kind of solution is what you might see for an Oracle, or any other > binary ACID database, so you can look at best practices for integrating > these products with Netapp or EMC Celera for more ideas. > > -----Original Message----- > From: Rick Leir [mailto:rl...@leirtech.com] > Sent: Friday, May 19, 2017 12:40 PM > To: solr-user@lucene.apache.org > Subject: Re: Solr in NAS or Network Shared Drive > > For an experiment, mount the NAS filesystem ro (readonly). Is there any > way to tell Solr not to bother with a lockfile? And what happens if an > update or add gets requested by mistake, does it take down Solr? > > Why not do this all the simple way, and just replicate? > > On May 19, 2017 10:41:19 AM EDT, David Hastings < > hastings.recurs...@gmail.com> wrote: > >ive always wanted to experiment with this, but you have to be very > >careful that only one of the cores, or neither, can do ANY writes, also > >if you have a suggester index you need to make sure that each core > >builds their own independently. In any case from every thing ive read > >the general answer is dont do it. would like to hear other peoples > >thoughts on this however. > > > >On Fri, May 19, 2017 at 10:33 AM, Ravi Kumar Taminidi < > >ravi.tamin...@whitepine-st.com> wrote: > > > >> Hello, Scenario: Currently we have 2 Solr Servers running in 2 > >different > >> servers (linux), Is there any way can we make the Core to be located > >in NAS > >> or Network shared Drive so both the solrs using the same Index. > >> > >> Let me know if any performance issues, our size of Index is appx 1GB. > >> > >> Thanks > >> > >> Ravi > >> > >> -----Original Message----- > >> From: biplobbiswas [mailto:revolutionisme+s...@gmail.com] > >> Sent: Friday, May 19, 2017 9:23 AM > >> To: solr-user@lucene.apache.org > >> Subject: Re: Nested Document is flattened even with @Field(child = > >true) > >> annotation > >> > >> Hi > >> Mikhail Khludnev-2 wrote > >> > Hello, > >> > > >> > You need to use > >> > > >https://cwiki.apache.org/confluence/display/solr/Other+Parsers#OtherPa > >> > rsers-BlockJoinQueryParsers > >> > and > >> > > >https://cwiki.apache.org/confluence/display/solr/Transforming+Result+D > >> > > >ocuments#TransformingResultDocuments-[child]-ChildDocTransformerFactor > >> > y > >> > to get the nested data back. > >> > > >> > > >> > -- > >> > Sincerely yours > >> > Mikhail Khludnev > >> > >> I had already gone through those links you posted and they talk about > >> retrieving after indexing. My problem is that my documents are not > >indexed > >> in a nested structure. > >> > >> Can you please look at the first comment as well where I posted a > >sample > >> code and sample response which i get back. > >> > >> Because its creating distinct documents for nested structure > >> > >> > >> > >> > >> -- > >> View this message in context: http://lucene.472066.n3. > >> nabble.com/Nested-Document-is-flattened-even-with-Field- > >> child-true-annotation-tp4335877p4335891.html > >> Sent from the Solr - User mailing list archive at Nabble.com. > >> > > -- > Sorry for being brief. Alternate email is rickleir at yahoo dot com >
