wirybeaver commented on code in PR #9710:
URL: https://github.com/apache/pinot/pull/9710#discussion_r1024597451
##########
pinot-common/src/main/java/org/apache/pinot/common/utils/fetcher/SegmentFetcherFactory.java:
##########
@@ -196,4 +206,21 @@ private void fetchAndDecryptSegmentToLocalInternal(String
uri, File dest, String
crypter.decrypt(tempDownloadedFile, dest);
}
}
+
+ private void fetchAndDecryptSegmentToLocalInternal(@NonNull List<URI> uris,
File dest, String crypterName)
+ throws Exception {
+ Preconditions.checkArgument(!uris.isEmpty(), "empty uris passed into the
fetchAndDecryptSegmentToLocalInternal");
+ URI uri = uris.get(RANDOM.nextInt(uris.size()));
Review Comment:
I am considering whether we should introduces the strategy pattern here:
user can either choose to pick up a random or go over all peers. The trade of
between responsiveness and data reliability can be determined by user. For the
sake of time, I hide the random implementation inside this function. In the
future, I think the function signature would be
```
private void fetchAndDecryptSegmentToLocalInternal(@NonNull List<URI> uris,
File dest, String crypterName, PeerDownloadderStrategy strategy);
interface PeerDownloaderStrategy {
Response download(List<URI> uris, File dest, Context);
}
class Context {
String crypterName;
}
```
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