Quanlong Huang created IMPALA-11553:
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Summary: Add events specific metrics on table level
Key: IMPALA-11553
URL: https://issues.apache.org/jira/browse/IMPALA-11553
Project: IMPALA
Issue Type: Improvement
Reporter: Quanlong Huang
Currently, we have global metrics for event-processor in catalogd's web UI:
||Name||Value||Description||
|{{events-processor.avg-events-fetch-duration}}|989ms|Average time taken to
fetch a batch of metastore events|
|{{events-processor.avg-events-process-duration}}|0|Average time taken to
process a batch of events received from metastore|
|{{events-processor.events-received}}|0|Total number of metastore events
received|
|{{events-processor.events-received-15min-rate}}|0.000000|Exponentially
weighted moving average (EWMA) of number of events received in last 15 min|
|{{events-processor.events-received-1min-rate}}|0.000000|Exponentially weighted
moving average (EWMA) of number of events received in last 1 min|
|{{events-processor.events-received-5min-rate}}|0.000000|Exponentially weighted
moving average (EWMA) of number of events received in last 5 min|
|{{events-processor.events-skipped}}|0|Total number of metastore events skipped|
|{{events-processor.last-synced-event-id}}|734979|Last metastore event id that
the catalog server processed and synced to|
|{{events-processor.status}}|ACTIVE|Metastore event processor status|
Some metrics can be added for table level, e.g. {{avg-events-process-duration
(also extend it to measure the last 30min, 1h, 24h)}}
This helps users to find which tables are causing the event-processor lagging
behind. So they can disable event-processor on them as a workaround.
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