ankitsultana commented on code in PR #12317:
URL: https://github.com/apache/pinot/pull/12317#discussion_r1482212043
##########
pinot-common/src/main/java/org/apache/pinot/common/utils/fetcher/BaseSegmentFetcher.java:
##########
@@ -109,6 +110,40 @@ public File fetchUntarSegmentToLocalStreamed(URI uri, File
dest, long rateLimit,
throw new UnsupportedOperationException();
}
+ /**
+ * @param segmentName the name of the segment to fetch.
+ * @param uriSupplier the supplier to the list of segment download uris.
+ * @param dest The destination to put the downloaded segment.
+ * throws exception when the segment fetch fails after all attempts are
exhausted or other runtime exceptions occur.
Review Comment:
nit: `throws` ==> `@throws`
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeTableDataManager.java:
##########
@@ -658,11 +659,15 @@ private void downloadSegmentFromPeer(String segmentName,
String downloadScheme,
try {
tempRootDir = getTmpSegmentDataDir("tmp-" + segmentName + "." +
System.currentTimeMillis());
File segmentTarFile = new File(tempRootDir, segmentName +
TarGzCompressionUtils.TAR_GZ_FILE_EXTENSION);
- // First find servers hosting the segment in a ONLINE state.
- List<URI> peerSegmentURIs =
PeerServerSegmentFinder.getPeerServerURIs(segmentName, downloadScheme,
_helixManager);
- // Next download the segment from a randomly chosen server using
configured scheme.
-
SegmentFetcherFactory.getSegmentFetcher(downloadScheme).fetchSegmentToLocal(peerSegmentURIs,
segmentTarFile);
- _logger.info("Fetched segment {} from: {} to: {} of size: {}",
segmentName, peerSegmentURIs, segmentTarFile,
+ // Next download the segment from a randomly chosen server using
configured download scheme (http or https).
+
SegmentFetcherFactory.getSegmentFetcher(downloadScheme).fetchSegmentToLocal(segmentName,
+ () -> {
+ List<URI> peerServerURIs =
+ PeerServerSegmentFinder.getPeerServerURIs(segmentName,
downloadScheme, _helixManager);
+ Collections.shuffle(peerServerURIs);
+ return peerServerURIs;
+ }, segmentTarFile);
+ _logger.info("Fetched segment {} from: {} to: {} of size: {}",
segmentName, segmentTarFile,
Review Comment:
nit: number of args and `{}` placeholders don't match
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