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https://issues.apache.org/jira/browse/BIGTOP-614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13294731#comment-13294731
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Sujay Rau commented on BIGTOP-614:
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Namenodes in HA might always be specified from hdfs-site.xml, so changing the
following to your tests in the setUp() might get rid of the need to specify
-Dservice.id.1=nn1 and -Dservice.id.2=nn2 from the command line.
import org.apache.hadoop.conf.Configuration;
static void setUp() {
Configuration conf = new Configuration();
conf.addResource('hdfs-site.xml');
String namenodes = conf.get("dfs.ha.namenodes.ha-nn-uri");
service_id_1 = namenodes.split(",")[0];
service_id_2 = namenodes.split(",")[1];
assertTrue("Unspecified service id 1", service_id_1 != null);
assertTrue("Unspecified service id 2", service_id_2 != null);
num_failover = Integer.parseInt(System.getProperty("num.failover", "10"));
}
> Add HDFS HA tests
> -----------------
>
> Key: BIGTOP-614
> URL: https://issues.apache.org/jira/browse/BIGTOP-614
> Project: Bigtop
> Issue Type: Test
> Components: Tests
> Reporter: Stephen Chu
> Assignee: Stephen Chu
> Attachments: HATests.patch
>
>
> In this patch, I am adding 2 tests and a test util class.
> 1) TestHAFailover: Fails over between the NameNodes a configurable number of
> times. Checks the service state of each NN after each failover to ensure that
> the service state is correct.
> 2) TestKilLNNFailover: Kills the Active NN. Waits and fails over to the
> standby NN. Waits and checks that the former standby is now active. Restarts
> the killed NN and checks that it is now standby. Goes through this process a
> configurable number of times.
> 3) HATestUtil: Helper methods to fail over and kill the NameNodes.
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