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HDFS-15974. RBF: Unable to display the datanode UI of the router #2915

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Merged
merged 2 commits into from
Apr 23, 2021
Merged

HDFS-15974. RBF: Unable to display the datanode UI of the router #2915

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51b6759
Fix RBF does not display datanode UI
Apr 16, 2021
1ac78a8
return to empty set and add test
Apr 20, 2021
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2 changes: 1 addition & 1 deletion ...f/src/main/java/org/apache/hadoop/hdfs/server/federation/metrics/NamenodeBeanMetrics.java
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Original file line number Diff line number Diff line change
Expand Up @@ -855,7 +855,7 @@ public long getNumberOfSnapshottableDirs() {

@Override
public String getEnteringMaintenanceNodes() {
return "N/A";
return "{}";
}

@Override
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8 changes: 8 additions & 0 deletions ...hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java
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Expand Up @@ -1748,6 +1748,14 @@ public void testRBFMetricsMethodsRelayOnStateStore() {
assertEquals(0, metrics.getNumLiveNodes());
}

@Test
public void testNamenodeMetricsEnteringMaintenanceNodes() throws IOException {
final NamenodeBeanMetrics metrics =
router.getRouter().getNamenodeMetrics();

assertEquals("{}", metrics.getEnteringMaintenanceNodes());
}

@Test
public void testCacheAdmin() throws Exception {
DistributedFileSystem routerDFS = (DistributedFileSystem) routerFS;
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