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https://issues.apache.org/jira/browse/ACCUMULO-2985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058911#comment-14058911
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Josh Elser commented on ACCUMULO-2985:
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There's a single non-daemon thread. To implement ACCUMULO-2764, I wrapped the
methods which stop the MAC sub processes in {{Callable}}'s so we can get the
timeout semantics. Sadly, this requires an Executor to get those timeout
semantics. That Executor wasn't being stopped which introduced the bug that the
above program outlines.
I'm guessing that because Maven ultimately just ends the forked process, we
never noticed that the surefire runner wasn't cleanly exiting on its own.
> MAC doesn't stop cleanly in 1.6.1-SNAPSHOT
> ------------------------------------------
>
> Key: ACCUMULO-2985
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2985
> Project: Accumulo
> Issue Type: Bug
> Components: mini
> Reporter: John Vines
> Assignee: Josh Elser
> Priority: Blocker
> Fix For: 1.6.1, 1.7.0
>
>
> Using the following code to do some work-
> {code}public class TestMACWithRealInstance {
> public static void main(String args[]) throws IOException,
> AccumuloException, AccumuloSecurityException, TableExistsException,
> InterruptedException {
> MiniAccumuloConfig macConfig = new MiniAccumuloConfig(new
> File("/tmp/mac"), "secret");
> macConfig.setNumTservers(2);
> MiniAccumuloCluster mac = new MiniAccumuloCluster(macConfig);
> mac.start();
> mac.getConnector("root", "secret").tableOperations().create("macCreated");
> mac.stop();
> }
> }
> {code}
> It works fine against 1.6.0, but it seems broken against
> 01da4f4a8b14a125d3a2e29ef98dd044ab9ec75f after calling stop() it just sits in
> the terminal spewing messages about unable to connect to zookeeper
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