Thanks Neeraja for your quick response. May I know what replaced Hazelcast in that case?
I mean, how does Drill distributed mode currently offer the multicast and subnet scenarios, or are these scenarios not valid anymore? Regards, Pradeeban. On Mon, Mar 28, 2016 at 3:52 PM, Neeraja Rentachintala < [email protected]> wrote: > Its not currently used as far as I know. > Drill used this at some point, but we removed it due to issues in > multicast/subnet scenarios in Drill distributed mode. > > -Neeraja > > On Mon, Mar 28, 2016 at 12:49 PM, Pradeeban Kathiravelu < > [email protected]> wrote: > > > Hi, > > [1] states that Drill uses Hazelcast as an embedded distributed cache to > > distribute and store metadata and locality information. > > > > However, when I cloned the git repository and looked into the code, it > does > > not look like Hazelcast is used, except for some unused variable > > definitions and pom definitions. > > > > I also found a resolved bug report on Hazelcast cluster membership [2]. > > > > May I know whether Hazelcast is currently used by Drill, and what does > > exactly Drill achieve by using it? Relevant pointers to existing > > discussions (if this was already discussed) or code location (if this was > > indeed implemented in Drill) are also appreciated. > > > > [1] > > > > > http://www.slideshare.net/Hadoop_Summit/understanding-the-value-and-architecture-of-apache-drill > > [2] https://issues.apache.org/jira/browse/DRILL-489 > > > > Thank you. > > Regards, > > Pradeeban. > > -- > > Pradeeban Kathiravelu. > > PhD Researcher, Erasmus Mundus Joint Doctorate in Distributed Computing, > > INESC-ID Lisboa / Instituto Superior Técnico, Universidade de Lisboa, > > Portugal. > > Biomedical Informatics Software Engineer, Emory University School of > > Medicine. > > > > Blog: [Llovizna] http://kkpradeeban.blogspot.com/ > > LinkedIn: www.linkedin.com/pub/kathiravelu-pradeeban/12/b6a/b03 > > > -- Pradeeban Kathiravelu. PhD Researcher, Erasmus Mundus Joint Doctorate in Distributed Computing, INESC-ID Lisboa / Instituto Superior Técnico, Universidade de Lisboa, Portugal. Biomedical Informatics Software Engineer, Emory University School of Medicine. Blog: [Llovizna] http://kkpradeeban.blogspot.com/ LinkedIn: www.linkedin.com/pub/kathiravelu-pradeeban/12/b6a/b03
