LuciferYang commented on code in PR #37648:
URL: https://github.com/apache/spark/pull/37648#discussion_r959341662
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resource-managers/yarn/src/test/scala/org/apache/spark/network/shuffle/ShuffleTestAccessor.scala:
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@@ -220,4 +219,21 @@ object ShuffleTestAccessor {
db: DB): ConcurrentMap[ExternalShuffleBlockResolver.AppExecId,
ExecutorShuffleInfo] = {
ExternalShuffleBlockResolver.reloadRegisteredExecutors(db)
}
+
+ private def initDB(dbBackend: DBBackend, file: File): DB = {
+ if (file != null) {
+ // TODO: SPARK-38888, add rocksdb implementation.
+ dbBackend match {
+ case DBBackend.LEVELDB =>
+ val options = new org.iq80.leveldb.Options()
+ options.createIfMissing(true)
+ val factory = new org.fusesource.leveldbjni.JniDBFactory()
+ new LevelDB(factory.open(file, options))
+ case _ =>
+ throw new IllegalArgumentException("Unsupported DBBackend: " +
dbBackend)
+ }
+ } else {
+ null
+ }
Review Comment:
do some check, I think we can directly use another `initDB` and delete this
one.
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