mridulm commented on code in PR #37648:
URL: https://github.com/apache/spark/pull/37648#discussion_r956351701
##########
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/ExternalShuffleBlockResolver.java:
##########
@@ -125,18 +125,13 @@ public ShuffleIndexInformation load(String filePath)
throws IOException {
.weigher((Weigher<String, ShuffleIndexInformation>)
(filePath, indexInfo) -> indexInfo.getRetainedMemorySize())
.build(indexCacheLoader);
- DBBackend dbBackend;
- if (registeredExecutorFile != null) {
- String dbBackendName =
- conf.get(Constants.SHUFFLE_SERVICE_DB_BACKEND,
DBBackend.LEVELDB.name());
- dbBackend = DBBackend.byName(dbBackendName);
+ String dbBackendName =
+ conf.get(Constants.SHUFFLE_SERVICE_DB_BACKEND, DBBackend.LEVELDB.name());
+ DBBackend dbBackend = DBBackend.byName(dbBackendName);
+ db = DBProvider.initDB(dbBackend, this.registeredExecutorFile,
CURRENT_VERSION, mapper);
Review Comment:
Review note: Recovery need not be enabled for node managers - in which case
`registeredExecutorFile` will be `null` (in addition to tests).
`DBProvider.initDB` does handle null input though.
So the main change in this file is moving the log message to `if (db !=
null)`
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