anishshri-db commented on code in PR #42066:
URL: https://github.com/apache/spark/pull/42066#discussion_r1281027560
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/StateStore.scala:
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@@ -636,17 +691,46 @@ object StateStore extends Logging {
if (SparkEnv.get == null) {
throw new IllegalStateException("SparkEnv not active, cannot do
maintenance on StateStores")
}
- loadedProviders.synchronized { loadedProviders.toSeq }.foreach { case (id,
provider) =>
- try {
- provider.doMaintenance()
- if (!verifyIfStoreInstanceActive(id)) {
- unload(id)
- logInfo(s"Unloaded $provider")
- }
- } catch {
- case NonFatal(e) =>
- logWarning(s"Error managing $provider, stopping management thread")
- throw e
+ loadedProviders.synchronized {
+ loadedProviders.toSeq
+ }.foreach { case (id, provider) =>
+ // check exception
+ if (threadPoolException.get() != null) {
+ val exception = threadPoolException.get()
+ logWarning("Error in maintenanceThreadPool", exception)
+ throw exception
+ }
+ if (processThisPartition(id)) {
+ maintenanceThreadPool.execute(() => {
+ val startTime = System.currentTimeMillis()
+ try {
+ provider.doMaintenance()
+ if (!verifyIfStoreInstanceActive(id)) {
+ unload(id)
+ logInfo(s"Unloaded $provider")
+ }
+ } catch {
+ case NonFatal(e) =>
+ logWarning(s"Error managing $provider, stopping management
thread", e)
+ threadPoolException.set(e)
+ throw e
Review Comment:
In this single threaded case, its caught by the maintenance thread itself
right ? we are executing everything within the context of a single thread
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