Yiqun Lin created HADOOP-15768:
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Summary: Do not use Time#now to calculate the rpc queue time
duration
Key: HADOOP-15768
URL: https://issues.apache.org/jira/browse/HADOOP-15768
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 3.1.1
Reporter: Yiqun Lin
Assignee: Ryan Wu
For the rpc queue time calculation, we are using a not-recommended way: Using
{{Time#now}} to calculate for this.
{code}
// Invoke the protocol method
long startTime = Time.now();
int qTime = (int) (startTime-receivedTime);
....
server.updateMetrics(detailedMetricsName, qTime, processingTime, false);
{code}
We should use {{Time#monotonicNow()}} instead. This JIRA will fix these across
RpcEngine impl classes.
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