On Fri, Jul 20, 2012 at 10:36 AM, Tharindu Mathew <[email protected]> wrote:
> Subash, > > Can I know why this is needed? This was not required earlier so I'd like > to understand why it's needed now? > Hi Tharidu, I hope you meant why caching a must for jdbc mounting. I am not sure why this didn't wanted earlier. In caching of carbon clusters, each carbon instance has its own cache. Assume replicated caching not enabled. So suppose a two node cluster which has jdbc mount. When do a update on one carbon instance and it clears the cache and persist the change(delete/put) to the DB. The problem comes when some other node do a *get* from the same earlier changed location. Because its cache not updated. Unless you do a put on the same location and clears the cache you will not see the changes. If replicated caching enabled, infinispan does the sync between two caches. Hi Charitha, In fact this is a MUST for atom/ws as well IF you need 100% consistency across the cluster. Because there are some edge cases. It works fine until you do changes from the mounted side. If you do some changes on the other side(master), the changes not get reflected. I hope you got what I meant. > > > On Fri, Jul 20, 2012 at 9:49 AM, Charitha Kankanamge <[email protected]>wrote: > >> Thanks Subash, this is something we have not documented anywhere. We >> should update all docs, blogs with this information. >> >> >> On Friday, July 20, 2012, Subash Chaturanga wrote: >> >>> >>> >>> On Thu, Jul 19, 2012 at 11:48 PM, Charitha Kankanamge <[email protected] >>> > wrote: >>> >>>> Folks, >>>> Should replicated caching be enabled with registry mounting? Suppose >>>> /_system/governance space of an ESB instance is mounted (jdbc or ws) to the >>>> same collection of a central G-reg. In that case, should we enable >>>> replicated caching in both ESB and G-reg instances? >>>> Please confirm. >>>> >>> Hi Charitha, >>> Yes, for JDBC mounting it is a MUST. But AFAIK, for atom/ws mounting it >>> should be fine without replicated caching enabled. >>> >>> >>>> >>>> Thanks! >>>> Charitha >>>> >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> [email protected] >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> >>> Subash Chaturanga >>> Software Engineer >>> WSO2 Inc. http://wso2.com >>> >>> email - [email protected] >>> phone - 077 2225922 >>> >>> >> >> -- >> Charitha Kankanamge >> cell: +94 718 359 265 >> blog: http://charithaka.blogspot.com <http://wso2.com> >> >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > > -- > Regards, > > Tharindu > > blog: http://mackiemathew.com/ > M: +94777759908 > > -- Subash Chaturanga Software Engineer WSO2 Inc. http://wso2.com email - [email protected] phone - 077 2225922
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