Jeff Kim created KAFKA-18610:
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Summary: Add flush metrics to runtime
Key: KAFKA-18610
URL: https://issues.apache.org/jira/browse/KAFKA-18610
Project: Kafka
Issue Type: Sub-task
Reporter: Jeff Kim
Assignee: Jeff Kim
Add 3 metrics
# flush-interval-ms-\{max, p99, p999}: track how long it takes from when a
batch is first created, to right before writing to disk. The bulk of the time
will represent the time spent in the timer, waiting to execute the task.
# records-size-bytes-\{max, p99, p999}: Write events generate records in the
runtime. Most of the time, the generated records have to be appended atomically
into the same batch. If any atomic records exceed __consumer_offset's
`max.message.bytes`, the runtime throws RecordTooLargeException.
# flush-batch-size-\{max, p99, p999}: Track the size of the batch that is
flushed. Note that multiple atomic records can be batched together. This helps
identify how large batches become before they are written, or whether they hit
the max bytes.
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