First question--file descriptor limit for the user executing storm workers, would recommend confirming it is > 1024.
--John On Wed, May 18, 2016 at 10:59 AM, Gurusamy Thirupathy <[email protected]> wrote: > Hi, > > I have 8 storm workers to read data from Kafka with 8 partitions(using > kafka spout) and writing to Cassandra(Cassandra bolt). > I have 12g RAM and 4 CPU machine(centOs). I configured all 8 workers in > one machine(VM) > > I started loading data into kafka(20000 messages every 6 seconds), I ran > the test last 20 hour. I was performing well until 10 hours, I don’t see > any single failure. After that(from 11th hour) I am seeing failure in storm > UI. > So the write count also got reduced in Cassandra. > > Also I am seeing the folloing error in workers log. > > > b.s.m.n.Client [ERROR] connection attempt 32 to Netty-Client-stormWorkers > failed: java.lang.RuntimeException: Returned channel was actually not > established > > Anyone experienced this kind of issue? > > Thanks, > Guru >
