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https://issues.apache.org/jira/browse/CASSANDRA-16246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yifan Cai updated CASSANDRA-16246:
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Bug Category: Parent values: Code(13163)Level 1 values: Bug - Unclear
Impact(13164)
Complexity: Low Hanging Fruit
Discovered By: User Report
Severity: Low
Status: Open (was: Triage Needed)
> Unexpected warning "Ignoring Unrecognized strategy option" for
> NetworkTopologyStrategy when restarting
> ------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-16246
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16246
> Project: Cassandra
> Issue Type: Bug
> Components: Observability/Logging
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Normal
>
> During restarting, bunch of warning messages like
> "AbstractReplicationStrategy.java:364 - Ignoring Unrecognized strategy option
> {datacenter2} passed to NetworkTopologyStrategy for keyspace
> distributed_test_keyspace" are logged.
> The warnings are not expected since the mentioned DC exist.
> It seems to be caused by the improper order during startup, so that when
> opening keyspaces it is unaware of DCs.
> The warning can be reproduced using the test below.
> {code:java}
> @Test
> public void testEmitsWarningsForNetworkTopologyStategyConfigOnRestart()
> throws Exception {
> int nodesPerDc = 2;
> try (Cluster cluster = builder().withConfig(c -> c.with(GOSSIP, NETWORK))
> .withRacks(2, 1, nodesPerDc)
> .start()) {
> cluster.schemaChange("CREATE KEYSPACE " + KEYSPACE +
> " WITH replication = {'class':
> 'NetworkTopologyStrategy', " +
> "'datacenter1' : " + nodesPerDc + ",
> 'datacenter2' : " + nodesPerDc + " };");
> cluster.get(2).nodetool("flush");
> System.out.println("Stop node 2 in datacenter 1");
> cluster.get(2).shutdown().get();
> System.out.println("Start node 2 in datacenter 1");
> cluster.get(2).startup();
> List<String> result = cluster.get(2).logs().grep("Ignoring
> Unrecognized strategy option \\{datacenter2\\}").getResult();
> Assert.assertFalse(result.isEmpty());
> }
> }
> {code}
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