Hi, when can the discrepancy in the index arise. Any specific example?
any documentation which says the index automatically rebuilds/keeps itself > up to date after updations and deletions I was unable to locate anything saying this in Apache C* docs. But here is Datastax link if that is good for you https://docs.datastax.com/en/cassandra/3.0/cassandra/dml/dmlIndexInternals.html?hl=secondary%2Cindex On 30 April 2018 at 17:51, Akshit Jain <akshit13...@iiitd.ac.in> wrote: > Hi, > This looks good but when can the discrepancy in the index arise. Any > specific example? > Is there any documentation which says the index automatically > rebuilds/keeps itself up to date after updations and deletions. Also if > there anything specific to stratio-lucene-index. > > Regards > Akshit Jain > 9891724697 > > On Fri, Apr 27, 2018 at 9:59 AM, Anup Shirolkar < > anup.shirol...@instaclustr.com> wrote: > >> Hi, >> >> The secondary indices in Cassandra are maintained continuously as data is >> written. Also index rebuilding is kicked off automatically when you create >> a new index. So, there is no good reason to schedule nodetool rebuild_index >> regularly. >> >> However, if you find any discrepancy in the index and data you should run >> it. Ideally, this should not happen but if it is required as a result of >> any major activity/failure you can use it. >> >> Talking about the load it puts on system, it depends upon the size of >> index itself. Although it will consume resources, it should not give a >> major performance hit to the system. >> >> Regards, >> Anup >> >> On 27 April 2018 at 13:46, Akshit Jain <akshit13...@iiitd.ac.in> wrote: >> >>> Hi, >>> How frequently one should run nodetool rebuild_index and what's its >>> impact on performance in terms of iops,cpu utilisation etc. >>> >>> Regards >>> >>> >> >
