Hi,
I would appreciate any help. I have a cluster of 4 servers with replication factor 3 version 1.0.0 The cluster was upgraded from 0.7.8. 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) ERROR [WRITE-/10.4.251.82] 2011-11-13 10:20:37,448 AbstractCassandraDaemon.java (line 133) Fatal exception in thread Thread[WRITE-/10.4.251.82,5,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) ERROR [WRITE-/10.64.146.54] 2011-11-13 10:20:37,449 AbstractCassandraDaemon.java (line 133) Fatal exception in thread Thread[WRITE-/10.64.146.54,5,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) when I run nodetool version I get ReleaseVersion: 1.0.2 When I run nodetool ring I get Address DC Rack Status State Load Owns Token 127605887595351923798765477786913079296 10.5.6.102 datacenter1 rack1 Down Normal ? 25.00% 0 10.4.251.82 datacenter1 rack1 Down Normal ? 25.00% 42535295865117307932921825928971026432 10.64.146.54 datacenter1 rack1 Down Normal ? 25.00% 85070591730234615865843651857942052864 10.104.121.246 datacenter1 rack1 Up Normal 9.55 GB 25.00% 127605887595351923798765477786913079296 The only server up is the one I have upgraded. When I run nodetool ring from a different server on the cluster I get this 10.5.6.102 datacenter1 rack1 Up Normal 22.56 GB 25.00% 0 10.4.251.82 datacenter1 rack1 Up Normal 18.85 GB 25.00% 42535295865117307932921825928971026432 10.64.146.54 datacenter1 rack1 Up Normal 16.24 GB 25.00% 85070591730234615865843651857942052864 10.104.121.246 datacenter1 rack1 Down Normal 10.21 GB 25.00% 127605887595351923798765477786913079296 All up except for the upgraded server. Thanks Michael vaknine