Hi Ravi, I've not done this myself before, but you might want to look closely at the underlying error behind that 500 exception. Sometimes a simple configuration issue can be the cause of the 500.
Here's how to find the underlying error: https://wiki.lyrasis.org/display/DSPACE/Troubleshoot+an+error#Troubleshootanerror-DSpace7.x(orabove) Here's common causes for 500 exceptions: https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace#InstallingDSpace-%22500ServiceUnavailable%22fromtheUserInterface One other thing to check is that the backend (REST API) "trusts" the User Interface. This is controlled by the "rest.cors.allowed-origins" setting (in the rest.cfg). That setting must list all web-based clients which are using the REST API, otherwise they may be blocked with a 500 exception. Tim On Sunday, July 30, 2023 at 12:32:43 PM UTC-5 ravi...@gmail.com wrote: > Hi Mark, > Thanks for the suggestion but still the same problem. > > I have tried below > 1. Single solr service but still same problem, but I need solr also in HA > mode > 2. Kept Dspace backend in common NAS but can specify only one frontend URL > and one backend URL in local.cfg. Only one DSpace instance works at a time, > the other one shows error 500. But again items/collections/communities > created in one cannot be seen in another even though, DSpace backend is > common to both the frontends. > > Does anyone have any idea or suggestion on at least DSpace frontend HA > with a common DSpace backend? > > Regards > Ravi Konila > > On Tuesday, July 25, 2023 at 10:26:18 PM UTC+5:30 Mark H. Wood wrote: > >> On Tue, Jul 25, 2023 at 10:14:10PM +0530, Ravi Konila wrote: >> > I have successfully installed two Dspace 7.6 servers with a common NAS >> storage connected to both the servers used for bitstore/assetstore. >> > Both the servers works fine individually with the shared storage. But >> items/community/collection created in one is not visible in other one. >> > Please note that, both the servers use same Postgresql 15 server/db. >> > >> > The Dspace configurations are identical (dspace and dspace-ui). Both >> can communicate successfully to common Dspace database. >> > >> > Could anyone please clarify, if someone has done & configured load >> balancing or HA between two Dspace servers using shared storage (NAS). >> > Please guide me to take this forward. >> >> I have not attempted this. But I think that the two instances must >> also share a single Solr instance. >> >> -- >> Mark H. Wood >> Lead Technology Analyst >> >> University Library >> Indiana University - Purdue University Indianapolis >> 755 W. Michigan Street >> Indianapolis, IN 46202 >> 317-274-0749 <(317)%20274-0749> >> www.ulib.iupui.edu >> > -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-tech+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/80dc838f-935b-4b85-8c80-8feecf7e41f4n%40googlegroups.com.
