I got a similar error, and commenting out the below line helped. JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv4Stack=true"
Did you also include "rpc_interface_prefer_ipv6: true" in the YAML file? thanks Sai On Tue, Apr 11, 2017 at 6:37 AM, Martijn Pieters <mjpiet...@fb.com> wrote: > I’m having issues getting a single-node Cassandra cluster to run on a > Ubuntu 16.04 VM with only IPv6 available. I’m running Oracle Java 8 > (8u121-1~webupd8~2), Cassandra 3.10 (installed via the Cassandra > http://www.apache.org/dist/cassandra/debian packages.) > > > > I consistently get a “Protocol family unavailable” exception: > > > > ERROR [main] 2017-04-11 09:54:23,991 CassandraDaemon.java:752 - Exception > encountered during startup > > java.lang.RuntimeException: java.net.SocketException: Protocol family > unavailable > > at > org.apache.cassandra.net.MessagingService.getServerSockets(MessagingService.java:730) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.net.MessagingService.listen(MessagingService.java:664) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.net.MessagingService.listen(MessagingService.java:648) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:773) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.StorageService.initServer(StorageService.java:666) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.StorageService.initServer(StorageService.java:612) > ~[apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:394) > [apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:601) > [apache-cassandra-3.10.jar:3.10] > > at > org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:735) > [apache-cassandra-3.10.jar:3.10] > > Caused by: java.net.SocketException: Protocol family unavailable > > at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_121] > > at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_121] > > at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_121] > > at > sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) > ~[na:1.8.0_121] > > at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) > ~[na:1.8.0_121] > > at > org.apache.cassandra.net.MessagingService.getServerSockets(MessagingService.java:714) > ~[apache-cassandra-3.10.jar:3.10] > > ... 8 common frames omitted > > > > `lo` (loopback) has both `inet` and `inet6` addresses, but `eth0` has no > `inet` addresses, so only inet6 addr entries (both a local and a global > scope address are configured). > > > > My configuration changes: > > > > listen_address: <local or global scope IPv6 address> > > listen_interface_prefer_ipv6: true > > > > Tracing through the source code the exception shows that it is the > listen_address value above that throws the exception, changing it back to > 127.0.0.1 makes the server work again (but then I don’t get to use it on my > local network). I tried both the local and the global scope IPv6 address. > > > > I tried changing the JVM configuration to prefer IPv6 by editing > /etc/cassandra/cassandra-env.sh: > > > > --- etc/cassandra/cassandra-env.sh 2017-01-31 16:29:32.000000000 > +0000 > > +++ /etc/cassandra/cassandra-env.sh 2017-04-11 09:52:51.456000000 > +0000 > > @@ -290,6 +290,9 @@ > > # to the location of the native libraries. > > JVM_OPTS="$JVM_OPTS -Djava.library.path=$CASSANDRA_HOME/lib/sigar-bin" > > > > +#JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv4Stack=true" > > +JVM_OPTS="$JVM_OPTS -Djava.net.preferIPv6Addresses=true" > > + > > JVM_OPTS="$JVM_OPTS $MX4J_ADDRESS" > > JVM_OPTS="$JVM_OPTS $MX4J_PORT" > > JVM_OPTS="$JVM_OPTS $JVM_EXTRA_OPTS" > > > > But this makes no difference > > > > I also tried using `listen_interface` instead, but that only changes the > error message to: > > > > ERROR [main] 2017-04-11 10:35:16,426 CassandraDaemon.java:752 - > Exception encountered during startup: Configured listen_interface "eth0" > could not be found > > > > What else can I do? > > > > Martijn Pieters >
