Details
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Improvement
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Status: Resolved
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Low
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Resolution: Fixed
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None
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Cassandra 2.0.16; multi-DC configuration
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Docs
Description
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
Attachments
Attachments
Issue Links
- Blocked
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CASSANDRA-12631 Multiple Network Interfaces in non-EC2
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- Resolved
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- links to
