[jira] [Commented] (GEODE-9701) ClusterStartupRule starts 4 VMs even if fewer VMs is specified

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GEODE-9701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427912#comment-17427912 ] 

ASF subversion and git services commented on GEODE-9701:
--------------------------------------------------------

Commit 02e4baaadcd1fe7c076a445aa977b3c604d8eabc in geode's branch refs/heads/develop from Kirk Lund
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=02e4baa ]

GEODE-9701: Support lower VM counts in ClusterStartupRule


> ClusterStartupRule starts 4 VMs even if fewer VMs is specified
> --------------------------------------------------------------
>
>                 Key: GEODE-9701
>                 URL: https://issues.apache.org/jira/browse/GEODE-9701
>             Project: Geode
>          Issue Type: Bug
>          Components: tests
>            Reporter: Kirk Lund
>            Assignee: Kirk Lund
>            Priority: Major
>              Labels: GeodeOperationAPI, pull-request-available
>
> Bill reported that ClusterStartupRule seems to be creating 4 VMs no matter how few VMs he specifies in a new test for [PR #6930|https://github.com/apache/geode/pull/6930]. The concern is that by creating more VMs, we are causing unnecessary load on machines in the cloud.
> I wrote this simple test which confirms the problem:
> {noformat}
> import static org.apache.geode.test.dunit.VM.getVMCount;
> import static org.assertj.core.api.Assertions.assertThat;
> import org.junit.Rule;
> import org.junit.Test;
> import org.apache.geode.test.dunit.rules.ClusterStartupRule;
> public class ClusterStartupRuleVmCountDistributedTest {
>   @Rule
>   public ClusterStartupRule clusterStartupRule = new ClusterStartupRule(3);
>   @Test
>   public void limitsVMsTo3() {
>     assertThat(getVMCount()).isEqualTo(3);
>   }
> }
> {noformat}
> But if I replace {{ClusterStartupRule}} with {{DistributedRule}}, it passes so the problem is specific to {{ClusterStartupRule}}.



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