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new 351b15f630fa [SPARK-58662][SS] Remove redundant toString in
RocksDBStateStoreProvider state transition messages
351b15f630fa is described below
commit 351b15f630fa4c489c969ff0aa4d68574a56a8af
Author: Uros Bojanic <[email protected]>
AuthorDate: Mon Aug 10 04:29:11 2026 +0000
[SPARK-58662][SS] Remove redundant toString in RocksDBStateStoreProvider
state transition messages
### What changes were proposed in this pull request?
Removes the redundant `.toString` from four error-message interpolations in
`RocksDBStateStoreProvider.validateAndTransitionState`:
```scala
case UPDATE => s"Cannot update after ${oldState}"
```
### Why are the changes needed?
String interpolation already stringifies embedded values via
`String.valueOf`, so the explicit call adds nothing. The `METRICS` branch in
the same `match` already reads `s"Cannot get metrics in ${oldState} state"`, so
dropping the calls makes all five branches read the same way.
`oldState` is a `case object` of the provider's `STATE` trait with a
compiler-generated `toString` and no custom override, and `state` is
initialized to `UPDATING` and only ever assigned other case objects, so the
rendered text is unchanged.
### Does this PR introduce _any_ user-facing change?
No. The error message text is identical.
### How was this patch tested?
Existing tests cover this path. No test asserts these four message strings;
the messages asserted in `RocksDBStateStoreSuite` and
`RocksDBStateStoreLockHardeningSuite` come from `validateState` and from the
unchanged `METRICS` branch, and the error condition and its `errorMsg`
parameter are untouched.
### Was this patch authored or co-authored using generative AI tooling?
Generated-by: Claude Code (Opus 4.8)
Closes #57869 from uros-b/cleanup-rocksdb-tostring.
Authored-by: Uros Bojanic <[email protected]>
Signed-off-by: Uros Bojanic <[email protected]>
---
.../sql/execution/streaming/state/RocksDBStateStoreProvider.scala | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
a/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala
b/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala
index 5cb87bcd070e..36f64d1175dc 100644
---
a/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala
+++
b/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDBStateStoreProvider.scala
@@ -148,10 +148,10 @@ private[sql] class RocksDBStateStoreProvider
case Some(nextState) => nextState
case None =>
val errorMsg = operation match {
- case UPDATE => s"Cannot update after ${oldState.toString}"
- case ABORT => s"Cannot abort after ${oldState.toString}"
- case RELEASE => s"Cannot release after ${oldState.toString}"
- case COMMIT => s"Cannot commit after ${oldState.toString}"
+ case UPDATE => s"Cannot update after ${oldState}"
+ case ABORT => s"Cannot abort after ${oldState}"
+ case RELEASE => s"Cannot release after ${oldState}"
+ case COMMIT => s"Cannot commit after ${oldState}"
case METRICS => s"Cannot get metrics in ${oldState} state"
}
throw StateStoreErrors.stateStoreOperationOutOfOrder(errorMsg)
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