https://community.cloudera.com/t5/Archives-of-Support-Questions/Computation-and-Serving-layer-instances/m-p/7284#M1245 <P>Must the computation and serving layer lie on the same instance?</P><P>If not, how do I tell the serving layer from which ip to take the data from?</P><P>Furthermore, can you please elaborate more on how to create multipe serving layers to improve scalability, and on how it improves performance if in fact they all have to lie on the same instance?</P> Fri, 16 Sep 2022 15:15:17 GMT yarneo 2022-09-16T15:15:17Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Computation-and-Serving-layer-instances/m-p/7284#M1245 <P>Must the computation and serving layer lie on the same instance?</P><P>If not, how do I tell the serving layer from which ip to take the data from?</P><P>Furthermore, can you please elaborate more on how to create multipe serving layers to improve scalability, and on how it improves performance if in fact they all have to lie on the same instance?</P> Fri, 16 Sep 2022 15:15:17 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Computation-and-Serving-layer-instances/m-p/7284#M1245 yarneo 2022-09-16T15:15:17Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Computation-and-Serving-layer-instances/m-p/7286#M1246 No they do not. The serving layer must be able to access HDFS. It takes its config by default from Hadoop config on the local machine at /etc/hadoop/conf. If that is hard I can say more about how to directly specify the HDFS URL. For this reason you can run these on many different machines. Tue, 11 Mar 2014 12:54:31 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Computation-and-Serving-layer-instances/m-p/7286#M1246 srowen 2014-03-11T12:54:31Z