Arya Goudarzi created CASSANDRA-4382:
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Summary: describering returns empty endpoint with
NetworkTopologyStrategy
Key: CASSANDRA-4382
URL: https://issues.apache.org/jira/browse/CASSANDRA-4382
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.1.1
Environment: Ubuntu Precise
2 x Ec2 m2.xlarge in 2 distinct zone (total 4 nodes)
Cassandra 1.1.1
Reporter: Arya Goudarzi
nodetool describering returns empty endpoints with NetworkTopologyStrategy and
Ec2MultiRegionSnitch.
Steps to Reproduce:
1. Launch a 4 node cluster in 2 distinct Ec2 zones using Cassandra 1.1.1 binary
build. This is how the ring looks like:
Address DC Rack Status State Load Owns
Token
127605887595351923798765477788721654896
******** us-east 1c Up Normal 198.26 KB 25.00%
1808575600
******** us-east 1b Up Normal 142.7 KB 25.00%
42535295865117307932921825930779602032
******** us-east 1c Up Normal 155.82 KB 25.00%
85070591730234615865843651859750628464
******** us-east 1b Up Normal 216.49 KB 25.00%
127605887595351923798765477788721654896
Noteworthy Configurations:
Ec2MultiRegionSnitch
2. Create the following keyspace:
create keyspace test_app
with placement_strategy = 'NetworkTopologyStrategy'
and strategy_options = {us-east-1 : 2}
and durable_writes = true;
3. nodetool describering test_app
Schema Version:cbae47df-99ee-3b41-aa33-238fe2f8e448
TokenRange:
TokenRange(start_token:127605887595351923798765477788721654896,
end_token:1808575600, endpoints:[], rpc_endpoints:[], endpoint_details:[])
TokenRange(start_token:85070591730234615865843651859750628464,
end_token:127605887595351923798765477788721654896, endpoints:[],
rpc_endpoints:[], endpoint_details:[])
TokenRange(start_token:42535295865117307932921825930779602032,
end_token:85070591730234615865843651859750628464, endpoints:[],
rpc_endpoints:[], endpoint_details:[])
TokenRange(start_token:1808575600,
end_token:42535295865117307932921825930779602032, endpoints:[],
rpc_endpoints:[], endpoint_details:[])
I had asked this in chat yesterday. First in my test environment where I had
only one local node I was mistakenly using NetworkTopology like above which
ended up in returning no endpoint, so that was my problem and changing it to
SimpleStrategy worked. Now I have a 4 node cluster and NetworkTopology seams to
not work as expected.
Please investigate. Thank You.
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