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https://issues.apache.org/jira/browse/GEODE-7591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17130355#comment-17130355
]
ASF GitHub Bot commented on GEODE-7591:
---------------------------------------
jvarenina commented on a change in pull request #5182:
URL: https://github.com/apache/geode/pull/5182#discussion_r437924826
##########
File path:
geode-core/src/distributedTest/java/org/apache/geode/distributed/internal/ClusterDistributionManagerDUnitTest.java
##########
@@ -370,6 +377,36 @@ public void testWaitForViewInstallation() {
.untilAsserted(() ->
assertThat(waitForViewInstallationDone.get()).isTrue());
}
+ /**
+ * show that waitForViewInstallation works as expected when distribution
manager is closed
+ * while waiting for the latest membership view to install
+ */
+ @Test
+ public void testWaitForViewInstallationDisconnectDS() {
+ InternalDistributedSystem system = getSystem();
+ ClusterDistributionManager dm = (ClusterDistributionManager)
system.getDM();
+ MembershipView<InternalDistributedMember> view =
dm.getDistribution().getView();
+
+ CyclicBarrier cyclicBarrier = new CyclicBarrier(2);
+ Future future = executorService.submit(() -> {
+ try {
+ cyclicBarrier.await(getTimeout().toMillis(), TimeUnit.MILLISECONDS);
+ dm.waitForViewInstallation(view.getViewId() + 1);
+ } catch (InterruptedException | BrokenBarrierException |
TimeoutException e) {
+ errorCollector.addError(e);
+ }
+ });
+
+ try {
+ cyclicBarrier.await(getTimeout().toMillis(), TimeUnit.MILLISECONDS);
+ system.disconnect();
+ future.get(getTimeout().toMillis(), TimeUnit.MILLISECONDS);
+ } catch (InterruptedException | TimeoutException | ExecutionException
Review comment:
You are right! Done.
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> potential hang
> --------------
>
> Key: GEODE-7591
> URL: https://issues.apache.org/jira/browse/GEODE-7591
> Project: Geode
> Issue Type: Improvement
> Components: membership
> Reporter: Bruce J Schuchardt
> Assignee: Jakov Varenina
> Priority: Major
>
> This method in ClusterDistributionManager waits for a new membership view to
> be installed, but if the cache is being closed while waiting the method could
> hang because it only checks for cache closure if the object it's waiting on
> is notified. We should change the wait() to have a timeout so that the
> `stopper` is polled periodically
> {code:java}
> void waitForViewInstallation(long id) throws InterruptedException {
> if (id <= membershipViewIdAcknowledged) {
> return;
> }
> synchronized (membershipViewIdGuard) {
> while (membershipViewIdAcknowledged < id &&
> !stopper.isCancelInProgress()) {
> if (logger.isDebugEnabled()) {
> logger.debug("waiting for view {}. Current DM view processed by all
> listeners is {}", id,
> membershipViewIdAcknowledged);
> }
> membershipViewIdGuard.wait();
> }
> }
> }
> {code}
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