simbadzina commented on code in PR #5691:
URL: https://github.com/apache/hadoop/pull/5691#discussion_r1208078130
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hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/NamenodeHeartbeatService.java:
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@@ -447,8 +462,13 @@ private void updateJMXParameters(
String address, NamenodeStatusReport report) {
try {
// TODO part of this should be moved to its own utility
- getFsNamesystemMetrics(address, report);
- getNamenodeInfoMetrics(address, report);
+ if (shouldUpdateJmx()) {
+ lastJmxUpdateAttempt = Time.monotonicNow();
+ getFsNamesystemMetrics(address);
+ getNamenodeInfoMetrics(address);
+ }
+ populateFsNamesystemMetrics(fsNamesystemMetrics, report);
+ populateNamenodeInfoMetrics(namenodeInfoMetrics, report);
Review Comment:
My other question was "How does the AvailableSpaceResolver and related code
behave when we fully disable updating JMX parameters?". In this case the
reported value will be 0.
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