Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/15307#discussion_r81874295
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamExecution.scala
---
@@ -105,11 +111,14 @@ 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()
+ private val streamMetrics = new StreamMetrics(uniqueSources.toSet,
triggerClock,
--- End diff --
nit: break at the highest semantic level to avoid breaking in the middle of
things that are the same. i.e.
```scala
private val streamMetrics =
new StreamMetrics(uniqueSources.toSet, triggerClock,
s"StructuredStreaming.$name")
```
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