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xds:fix cancel xds watcher accidentally removes the url #9809

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merged 1 commit into from
Jan 11, 2023
Merged

xds:fix cancel xds watcher accidentally removes the url #9809

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3 changes: 2 additions & 1 deletion xds/src/main/java/io/grpc/xds/XdsClientImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -332,12 +332,13 @@ public void run() {
if (!subscriber.isWatched()) {
subscriber.cancelResourceWatch();
resourceSubscribers.get(type).remove(resourceName);
subscribedResourceTypeUrls.remove(type.typeUrl());
if (subscriber.xdsChannel != null) {
subscriber.xdsChannel.adjustResourceSubscription(type);
}
if (resourceSubscribers.get(type).isEmpty()) {
resourceSubscribers.remove(type);
subscribedResourceTypeUrls.remove(type.typeUrl());

}
}
}
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29 changes: 29 additions & 0 deletions xds/src/test/java/io/grpc/xds/XdsClientImplTestBase.java
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Original file line number Diff line number Diff line change
Expand Up @@ -938,6 +938,35 @@ public void ldsResourceUpdated() {
assertThat(channelForEmptyAuthority).isNull();
}

@Test
public void cancelResourceWatcherNotRemoveUrlSubscribers() {
DiscoveryRpcCall call = startResourceWatcher(XdsListenerResource.getInstance(), LDS_RESOURCE,
ldsResourceWatcher);
verifyResourceMetadataRequested(LDS, LDS_RESOURCE);

// Initial LDS response.
call.sendResponse(LDS, testListenerVhosts, VERSION_1, "0000");
call.verifyRequest(LDS, LDS_RESOURCE, VERSION_1, "0000", NODE);
verify(ldsResourceWatcher).onChanged(ldsUpdateCaptor.capture());
verifyGoldenListenerVhosts(ldsUpdateCaptor.getValue());
verifyResourceMetadataAcked(LDS, LDS_RESOURCE, testListenerVhosts, VERSION_1, TIME_INCREMENT);

xdsClient.watchXdsResource(XdsListenerResource.getInstance(),
LDS_RESOURCE + "1", ldsResourceWatcher);
xdsClient.cancelXdsResourceWatch(XdsListenerResource.getInstance(), LDS_RESOURCE + "1",
ldsResourceWatcher);

// Updated LDS response.
Any testListenerVhosts2 = Any.pack(mf.buildListenerWithApiListener(LDS_RESOURCE,
mf.buildRouteConfiguration("new", mf.buildOpaqueVirtualHosts(VHOST_SIZE))));
call.sendResponse(LDS, testListenerVhosts2, VERSION_2, "0001");
call.verifyRequest(LDS, LDS_RESOURCE, VERSION_2, "0001", NODE);
verify(ldsResourceWatcher).onChanged(ldsUpdateCaptor.capture());
verifyGoldenListenerVhosts(ldsUpdateCaptor.getValue());
verifyResourceMetadataAcked(LDS, LDS_RESOURCE, testListenerVhosts2, VERSION_2,
TIME_INCREMENT * 2);
}

@Test
public void ldsResourceUpdated_withXdstpResourceName() {
BootstrapperImpl.enableFederation = true;
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