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Roman Bielik commented on CASSANDRA-9748: ----------------------------------------- Retested with the suggested settings, but it had no effect. The result is still the same. How does "prefer_local" effect the gossip? I mean how does Cassandra identify which interface is local? > Can't see other nodes when using multiple network interfaces > ------------------------------------------------------------ > > Key: CASSANDRA-9748 > URL: https://issues.apache.org/jira/browse/CASSANDRA-9748 > Project: Cassandra > Issue Type: Bug > Environment: Cassandra 2.0.16; multi-DC configuration > Reporter: Roman Bielik > > The idea is to setup a multi-DC environment across 2 different networks based > on the following configuration recommendations: > http://docs.datastax.com/en/cassandra/2.0/cassandra/configuration/configMultiNetworks.html > Each node has 2 network interfaces. One used as a private network (DC1: > 10.0.1.x and DC2: 10.0.2.x). The second one a "public" network where all > nodes can see each other (this one has a higher latency). > Using the following settings in cassandra.yaml: > *seeds:* public IP (same as used in broadcast_address) > *listen_address:* private IP > *broadcast_address:* public IP > *rpc_address:* 0.0.0.0 > *endpoint_snitch:* GossipingPropertyFileSnitch > _(tried different combinations with no luck)_ > No firewall and no SSL/encryption used. > The problem is that nodes do not see each other (a gossip problem I guess). > The nodetool ring/status shows only the local node but not the other ones > (even from the same DC). > When I set listen_address to public IP, then everything works fine, but that > is not the required configuration. > _Note: Not using EC2 cloud!_ > netstat -anp | grep -E "(7199|9160|9042|7000)" > tcp 0 0 0.0.0.0:7199 0.0.0.0:* > LISTEN 3587/java > tcp 0 0 10.0.1.1:9160 0.0.0.0:* > LISTEN 3587/java > tcp 0 0 10.0.1.1:9042 0.0.0.0:* > LISTEN 3587/java > tcp 0 0 10.0.1.1:7000 0.0.0.0:* > LISTEN 3587/java > tcp 0 0 127.0.0.1:7199 127.0.0.1:52874 > ESTABLISHED 3587/java > tcp 0 0 10.0.1.1:7199 10.0.1.1:39650 > ESTABLISHED 3587/java -- This message was sent by Atlassian JIRA (v6.3.4#6332)