Github user brkyvz commented on a diff in the pull request:
https://github.com/apache/spark/pull/15307#discussion_r82890465
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamExecution.scala
---
@@ -105,11 +105,21 @@ class StreamExecution(
var lastExecution: QueryExecution = null
@volatile
- var streamDeathCause: StreamingQueryException = null
+ private var streamDeathCause: StreamingQueryException = null
/* Get the call site in the caller thread; will pass this into the micro
batch thread */
private val callSite = Utils.getCallSite()
+ /** Metrics for this query */
+ private val streamMetrics =
+ new StreamMetrics(uniqueSources.toSet, triggerClock,
s"StructuredStreaming.$name")
--- End diff --
makes sense. Since metrics are updated in the execution thread and not the
listener bus, there can't be old data suddenly updating the metrics right after
a stream is stopped?
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