Push again. Regards
Em wrote: > > Just wanted to push that topic. > > Regards > > > Em wrote: >> >> Hi Peter, >> >> I must jump in this discussion: From a logical point of view what you are >> saying makes only sense if both instances do not run on the same machine >> or at least not on the same drive. >> >> When both run on the same machine and the same drive, the overall used >> memory should be equal plus I do not understand why this setup should >> affect cache warming etc., since the process of rewarming should be the >> same. >> >> Well, my knowledge about the internals is not very deep. But from just a >> logical point of view - to me - the same is happening as if I would do it >> in a single solr-instance. So what is the difference, what do I overlook? >> >> Another thing: While W is committing and writing to the index, is there >> any inconsistency in R or isn't there any, because W is writing a new >> Segment and so for R there isn't anything different until the commit >> finished? >> Are there problems during optimizing an index? >> >> How do you inform R about the finished commit? >> >> Thank you for your explanation, it's a really interesting topic! >> >> Regards, >> Em >> >> Peter Sturge-2 wrote: >>> >>> Hi, >>> >>> We use this scenario in production where we have one write-only Solr >>> instance and 1 read-only, pointing to the same data. >>> We do this so we can optimize caching/etc. for each instance for >>> write/read. The main performance gain is in cache warming and >>> associated parameters. >>> For your Index W, it's worth turning off cache warming altogether, so >>> commits aren't slowed down by warming. >>> >>> Peter >>> >>> >>> On Sun, Feb 6, 2011 at 3:25 PM, Isan Fulia <isan.fu...@germinait.com> >>> wrote: >>>> Hi all, >>>> I have setup two indexes one for reading(R) and other for >>>> writing(W).Index R >>>> refers to the same data dir of W (defined in solrconfig via <dataDir>). >>>> To make sure the R index sees the indexed documents of W , i am firing >>>> an >>>> empty commit on R. >>>> With this , I am getting performance improvement as compared to using >>>> the >>>> same index for reading and writing . >>>> Can anyone help me in knowing why this performance improvement is >>>> taking >>>> place even though both the indexeses are pointing to the same data >>>> directory. >>>> >>>> -- >>>> Thanks & Regards, >>>> Isan Fulia. >>>> >>> >>> >> >> > > -- View this message in context: http://lucene.472066.n3.nabble.com/Separating-Index-Reader-and-Writer-tp2437666p2516736.html Sent from the Solr - User mailing list archive at Nabble.com.
