kaisun2000 commented on a change in pull request #1295:
URL: https://github.com/apache/helix/pull/1295#discussion_r492432202
##########
File path:
zookeeper-api/src/main/java/org/apache/helix/zookeeper/zkclient/metric/ZkClientMonitor.java
##########
@@ -38,9 +38,13 @@
import org.apache.helix.monitoring.mbeans.dynamicMBeans.SimpleDynamicMetric;
import org.apache.helix.monitoring.mbeans.exception.MetricException;
import org.apache.helix.zookeeper.zkclient.ZkEventThread;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
public class ZkClientMonitor extends DynamicMBeanProvider {
+ private static final Logger LOG =
LoggerFactory.getLogger(ZkClientMonitor.class);
Review comment:
fixed.
##########
File path:
zookeeper-api/src/main/java/org/apache/helix/zookeeper/zkclient/metric/ZkClientPathMonitor.java
##########
@@ -32,6 +32,9 @@
import org.apache.helix.monitoring.mbeans.dynamicMBeans.DynamicMetric;
import org.apache.helix.monitoring.mbeans.dynamicMBeans.HistogramDynamicMetric;
import org.apache.helix.monitoring.mbeans.dynamicMBeans.SimpleDynamicMetric;
+import org.apache.helix.zookeeper.zkclient.ZkClient;
Review comment:
removed.
##########
File path:
zookeeper-api/src/main/java/org/apache/helix/zookeeper/zkclient/metric/ZkClientMonitor.java
##########
@@ -109,12 +135,8 @@ public DynamicMBeanProvider register() throws JMException {
doRegister(attributeList, MBEAN_DESCRIPTION,
getObjectName(_monitorType, _monitorKey, _monitorInstanceName));
for (ZkClientPathMonitor.PredefinedPath path :
ZkClientPathMonitor.PredefinedPath.values()) {
- // If monitor root path only, check if the current path is Root.
- // Otherwise, add monitors for every path.
- if (!_monitorRootOnly ||
path.equals(ZkClientPathMonitor.PredefinedPath.Root)) {
- _zkClientPathMonitorMap.put(path,
- new ZkClientPathMonitor(path, _monitorType, _monitorKey,
_monitorInstanceName)
- .register());
+ if (_zkClientPathMonitorMap.get(path) != null) {
+ _zkClientPathMonitorMap.get(path).register();
Review comment:
There are many ways to write a loop and now we have stream.
Still, I will just change it anyway.
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