ZanderXu commented on code in PR #4597:
URL: https://github.com/apache/hadoop/pull/4597#discussion_r928132207
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hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/fairness/TestRouterRpcFairnessPolicyController.java:
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@@ -83,6 +87,29 @@ public void testHandlerAllocationPreconfigured() {
assertFalse(routerRpcFairnessPolicyController.acquirePermit(CONCURRENT_NS));
}
+ @Test
+ public void testAcquireTimeout() {
+ Configuration conf = createConf(40);
+ conf.setInt(DFS_ROUTER_FAIR_HANDLER_COUNT_KEY_PREFIX + "ns1", 30);
+ conf.setTimeDuration(DFS_ROUTER_FAIRNESS_ACQUIRE_TIMEOUT, 100,
TimeUnit.MILLISECONDS);
+ RouterRpcFairnessPolicyController routerRpcFairnessPolicyController =
+ FederationUtil.newFairnessPolicyController(conf);
+
+ // ns1 should have 30 permits allocated
+ for (int i = 0; i < 30; i++) {
+ assertTrue(routerRpcFairnessPolicyController.acquirePermit("ns1"));
+ }
+ long acquireBeginTimeMs = Time.monotonicNow();
+ assertFalse(routerRpcFairnessPolicyController.acquirePermit("ns1"));
+ long acquireEndTimeMs = Time.monotonicNow();
+
+ long acquireTimeMs = acquireEndTimeMs - acquireBeginTimeMs;
+
+ // There are some other operations, so acquireTimeMs >= 100ms.
+ assertTrue(acquireTimeMs >= 100);
+ assertTrue(acquireTimeMs < 100 + 50);
Review Comment:
@ayushtkn Thanks for your review. About this, do you have some good ideas?
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