Mohit Saindane created HDFS-15491:
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Summary: Journal transactions batched in sync metrics are missing
from Journal Node JMX
Key: HDFS-15491
URL: https://issues.apache.org/jira/browse/HDFS-15491
Project: Hadoop HDFS
Issue Type: Bug
Components: 3.1.1, hdfs, journal-node, qjm
Affects Versions: 3.1.1
Reporter: Mohit Saindane
Fix For: 3.1.1
Attachments: JournalNode metrics issue.png
I have enable the HA in HDP3.1.5 multinode cluster, I was trying to access the
REST response given by Journal Node on http 8480 port, but as per [Apache
Hadoop 3.1.1
Documentation|[https://hadoop.apache.org/docs/r3.1.1/hadoop-project-dist/hadoop-common/Metrics.html#JournalNode]]
I found that some of the Journal Node specific metrics are missing. (metrics
like NumTransactionsBatchedInSync_(60,300,3600)_sNumOps and
NumTransactionsBatchedInSync_Num_s_(50/75/90/95/99)_thPercentileLatencyMicros),
So checked the _JournalMetrics.java_ code given in
_hadoop-hdfs-3.1.1.3.1.5.0-152-sources.jar_ as well as __ [Hadoop Open Source
Code|[https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalMetrics.java]]
found that the following code is missing :
@Metric("Journal transactions batched in sync")
final MutableQuantiles[] numTransactionsBatchedInSync;
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