hi Denis, Sorry for late response...
Can you please elaborate on how to share session between queries ? Regards, Nitin Kumar Sharma. On Tue, Jul 28, 2015 at 11:09 AM, Denis DEBARBIEUX <ddebarbi...@norsys.fr> wrote: > Hi, > > You can also share the session between many queries. Avoid to create one > session per tuple. > > Denis > > > Le 28/07/2015 15:51, Ajay a écrit : > > Hi Nitin, > > In Cassandra documentation[1], it is mentioned to increase the number of > open files using ulimit which is a system (Linux) level setting. > > 1) > http://docs.datastax.com/en/cassandra/2.0/cassandra/install/installRecommendSettings.html > > Thanks > Ajay > > > On Tue, Jul 28, 2015 at 7:13 PM, nitin sharma <kumarsharma.ni...@gmail.com > > wrote: > >> HI, >> >> Has anyone worked on Storm - Cassandra setup? in my project Storm bolt >> will inject messages to Cassandra using Datax driver. >> >> We have observed that a single bolt executor thread is able to provide a >> throughput of 16 transactions per sec.. I.e - a single bolt executor thread >> is able to handle 16 tuple messages, process them and write to Cassandra in >> 1 sec. >> >> to meat our load requirement, we need nearly 100 executor thread.. But >> our problem is that after 32 executor thread, we start getting following >> error message while deploying the Storm topology.. >> >> “java.net.SocketException: Too many open files” >> >> Has anyone faced this issue earlier? any suggestions? >> >> >> Regards, >> Nitin Kumar Sharma. >> >> > > > > ------------------------------ > [image: Avast logo] <https://www.avast.com/antivirus> > > L'absence de virus dans ce courrier électronique a été vérifiée par le > logiciel antivirus Avast. > www.avast.com <https://www.avast.com/antivirus> > >
