Hello David, - 1. Does the `cassandra` DNS entry within the James container resolves to Cassandra? (this can be achieved with links or network).
- 2. A restarting Cassandra (with many data in the commitlog) might reject clients. Monitor Cassandra logs to check if this happens. I also noticed you used an unoffical image for Cassandra. Could this be a cause for your issue? Are you sure cassandra is well started after your configuration modifications? Cheers, Benoit On 28/10/2019 13:07, David Leangen wrote: > > Hi! > > I am sure the problem is due to my inexperience with Docker and Cassandra, > and even more so networking between multiple Docker containers… but I have > tried everything I can think of and would like to ask for some help. 😅 > > I am getting this error: > > [root@e5cc3846b51c apache-james-3.3.0]# java > -Dworking.directory=/opt/apache-james-3.3.0 -jar > server/container/guice/cassandra-guice/target/james-server-cassandra-guice.jar > 2019-10-28 05:51:54,981 WARN [main] - > [org.apache.james.modules.mailbox.ResilientClusterProvider]- Error > establishing Cassandra connection. Next retry scheduled in PT5S ms > com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) > tried for query failed (tried: /172.17.0.2:9042 > (com.datastax.driver.core.exceptions.TransportException: [/172.17.0.2:9042] > Cannot connect)) > > > The error is shown when I try to run JAMES from within a Docker container. > > Cassandra is up and running, and ought to be available via the IP address > 172.17.0.2, on port 9042. > > [root@james ~]# ip addr > 1: lo: <SNIP> > 2: eth0: <SNIP> > 3: eth1: <SNIP> > 4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP > group default > link/ether 02:42:76:5f:17:bb brd ff:ff:ff:ff:ff:ff > inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0 > valid_lft forever preferred_lft forever > inet6 fe80::42:76ff:fe5f:17bb/64 scope link > valid_lft forever preferred_lft forever > 10: veth81426b0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue > master docker0 state UP group default > link/ether 1a:70:e2:f3:7e:70 brd ff:ff:ff:ff:ff:ff link-netnsid 0 > inet6 fe80::1870:e2ff:fef3:7e70/64 scope link > valid_lft forever preferred_lft forever > 12: vethc13d660@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > noqueue master docker0 state UP group default > link/ether 5a:fd:2d:ad:df:12 brd ff:ff:ff:ff:ff:ff link-netnsid 1 > inet6 fe80::58fd:2dff:fead:df12/64 scope link > valid_lft forever preferred_lft forever > > The two virtual ethernet ports are for the james and cassandra containers. > > Here is the run command for cassandra: > > docker run \ > -dit \ > -v /home/cassandra/conf:/opt/cassandra/latest/conf \ > -v /home/cassandra/data:/data \ > -v /home/cassandra/commitlog:/commitlog \ > -v /home/cassandra/saved_caches:/saved_caches \ > -v /home/cassandra/hints:/hints \ > -p 7000:7000 \ > -p 7001:7001 \ > -p 7199:7199 \ > -p 9042:9042 \ > -p 9160:9160 \ > --ulimit memlock=-1:-1 \ > --memory='1g' \ > --name=cassandra \ > dleangen/cassandra:3.11.4 > > > Here is docker ps from the host: > > [root@james ~]# docker ps > CONTAINER ID IMAGE COMMAND CREATED > STATUS PORTS > NAMES > e5cc3846b51c dleangen/james:3.3.0 "/bin/bash" 7 minutes > ago Up 7 minutes > youthful_pascal > 1fefe86df493 dleangen/cassandra:3.11.4 "cassandra -f" 9 minutes > ago Up 9 minutes 0.0.0.0:7000-7001->7000-7001/tcp, > 0.0.0.0:7199->7199/tcp, 0.0.0.0:9042->9042/tcp, 0.0.0.0:9160->9160/tcp > cassandra > > Here is the /etc/hosts file in the Cassandra container: > > bash-4.2$ more /etc/hosts > 127.0.0.1 localhost > ::1 localhost ip6-localhost ip6-loopback > fe00::0 ip6-localnet > ff00::0 ip6-mcastprefix > ff02::1 ip6-allnodes > ff02::2 ip6-allrouters > 172.17.0.2 1fefe86df493 > > > Cassandra is up. I tested that it is indeed available from within the Docker > container over 127.0.0.1. > > So how the heck do I get my james container to be able to connect to it?? > > (I plan to use Docker Compose later… right now I’m trying to just connect my > containers directly.) > > > Thank you in advance for your help!!! 😇 > > Cheers, > =David > > --------------------------------------------------------------------- To unsubscribe, e-mail: server-user-unsubscr...@james.apache.org For additional commands, e-mail: server-user-h...@james.apache.org
