[LI-HOTFIX] Make the msgSendLatencySensor non-static #500
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TICKET = LIKAFKA-56148
LI_DESCRIPTION =
The msgSendLatencySensor sensor is used to add the following metrics together with client-id tags to a single KafkaProducer:
MetricName [name=message-produce-latency-avg, group=producer-metrics, description=The average latency between record queuing and get acknowledged in ms, tags={client-id=client-id1}],
MetricName [name=message-produce-latency-max, group=producer-metrics, description=The average latency between record queuing and get acknowledged in ms, tags={client-id=client-id1}],
The current implematation uses a static variable for the msgSendLatencySensor field, which means all KafkaProducer objects in the same process share the same sensor, and hence can interfere with each other.
This PR fixes the problem by making the msgSendLatencySensor a non-static field.
EXIT_CRITERIA = When this patch is merged in upstream kafka.
Committer Checklist (excluded from commit message)