You are right this solved the problem. I do not understand why version 1.0.0 was not affected since I used the same configuration yaml file.
Thank you. Michael Vaknine -----Original Message----- From: Brandon Williams [mailto:dri...@gmail.com] Sent: Sunday, November 13, 2011 4:48 PM To: user@cassandra.apache.org Cc: cassandra-u...@incubator.apache.org Subject: Re: Upgrade Cassandra Cluster to 1.0.2 On Sun, Nov 13, 2011 at 4:35 AM, Michael Vaknine <micha...@citypath.com> wrote: > I am trying to upgrade to 1.0.2 and when I try to start the first upgraded > server I get the following error > > > > ERROR [WRITE-/10.5.6.102] 2011-11-13 10:20:37,447 > AbstractCassandraDaemon.java (line 133) Fatal exception in thread > Thread[WRITE-/10.5.6.102,5,main] > > java.lang.NullPointerException > > at > org.apache.cassandra.net.OutboundTcpConnectionPool.isEncryptedChannel(Outbou ndTcpConnectionPool.java:93) > > at > org.apache.cassandra.net.OutboundTcpConnectionPool.newSocket(OutboundTcpConn ectionPool.java:77) > > at > org.apache.cassandra.net.OutboundTcpConnection.connect(OutboundTcpConnection .java:209) > > at > org.apache.cassandra.net.OutboundTcpConnection.run(OutboundTcpConnection.jav a:93) You are probably missing the encryption options in your yaml. I noticed this problem as part of https://issues.apache.org/jira/browse/CASSANDRA-3045. -Brandon