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HADOOP-18364. All method metrics related to the RPC protocol should be initialized. (#4624). Contributed by Shuyan Zhang.

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Reviewed-by: Erik Krogen <xkrogen@apache.org>
Reviewed-by: Chao Sun <sunchao@apache.org>
Signed-off-by: He Xiaoqiao <hexiaoqiao@apache.org>
This commit is contained in:
zhangshuyan0 2022-08-04 13:00:37 +08:00 committed by GitHub
parent 8eebf40b1a
commit dbf73e16b1
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2 changed files with 14 additions and 1 deletions
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2
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableRatesWithAggregation.java
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@ -72,7 +72,7 @@ public void init(Class<?> protocol) {
return;
}
protocolCache.add(protocol);
for (Method method : protocol.getDeclaredMethods()) {
for (Method method : protocol.getMethods()) {
String name = method.getName();
LOG.debug(name);
addMetricIfNotExists(name);

13
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java
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@ -48,6 +48,9 @@
import java.util.EnumSet;
import java.util.List;
import java.util.Random;
import org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer;
import org.apache.hadoop.ipc.metrics.RpcDetailedMetrics;
import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableList;
import org.slf4j.Logger;
@ -1128,4 +1131,14 @@ public void testEditLogTailing() throws Exception {
}
}
@Test
public void testNNRPCMetricIntegrity() {
RpcDetailedMetrics metrics =
((NameNodeRpcServer) cluster.getNameNode()
.getRpcServer()).getClientRpcServer().getRpcDetailedMetrics();
MetricsRecordBuilder rb = getMetrics(metrics.name());
// CommitBlockSynchronizationNumOps should exist.
assertCounter("CommitBlockSynchronizationNumOps", 0L, rb);
}
}