gengliangwang commented on code in PR #39202:
URL: https://github.com/apache/spark/pull/39202#discussion_r1057932574
##########
core/src/main/scala/org/apache/spark/internal/config/History.scala:
##########
@@ -79,6 +79,21 @@ private[spark] object History {
.stringConf
.createOptional
+ object LocalStoreSerializer extends Enumeration {
+ val JSON, PROTOBUF = Value
+ }
+
+ val LOCAL_STORE_SERIALIZER = ConfigBuilder("spark.history.store.serializer")
+ .doc("Serializer for writing/reading in-memory UI objects to/from
disk-based KV Store; " +
Review Comment:
It follows
```
val HYBRID_STORE_DISK_BACKEND =
ConfigBuilder("spark.history.store.hybridStore.diskBackend")
.doc("Specifies a disk-based store used in hybrid store; LEVELDB or
ROCKSDB.")
```
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