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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2021/09/02 19:16:29 UTC
[GitHub] [pinot] dharakk opened a new issue #7391: [Discussion] Event listener to gather query stats/information
dharakk opened a new issue #7391:
URL: https://github.com/apache/pinot/issues/7391
Hi, We have been looking into doing query analysis in order to pin point a specific scenario and combing through server and broker logs is a difficult task. An event listener interface which enable us to add a hook into query execution and gather query info/stats would be really helpful. For example Presto provides the following interface to hook into query execution. https://github.com/prestodb/presto/blob/master/presto-spi/src/main/java/com/facebook/presto/spi/eventlistener/EventListener.java
Do we already have a similar mechanism in Pinot? Have we ever considered doing so as I can imagine it wont be as simple as Presto because of the query volume and latency sensitive nature of Pinot?
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[GitHub] [pinot] kishoreg commented on issue #7391: [Discussion] Event listener to gather query stats/information
Posted by GitBox <gi...@apache.org>.
kishoreg commented on issue #7391:
URL: https://github.com/apache/pinot/issues/7391#issuecomment-913204354
Good idea. As Subbu mentioned, we have all the information but we lack the listener interface. It's definitely worth adding one in our spi.
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[GitHub] [pinot] mcvsubbu commented on issue #7391: [Discussion] Event listener to gather query stats/information
Posted by GitBox <gi...@apache.org>.
mcvsubbu commented on issue #7391:
URL: https://github.com/apache/pinot/issues/7391#issuecomment-913201584
Yes, see https://github.com/apache/pinot/blob/master/pinot-broker/src/main/java/org/apache/pinot/broker/api/RequestStatistics.java
You will need to plug in your own mechanism to emit this from the broker
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