Jackie-Jiang commented on code in PR #12936:
URL: https://github.com/apache/pinot/pull/12936#discussion_r1567944026
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pinot-core/src/main/java/org/apache/pinot/core/data/manager/BaseTableDataManager.java:
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@@ -693,27 +693,22 @@ File downloadAndDecrypt(String segmentName,
SegmentZKMetadata zkMetadata, File t
}
}
- // not thread safe. Caller should invoke it with safe concurrency control.
protected void downloadFromPeersWithoutStreaming(String segmentName,
SegmentZKMetadata zkMetadata, File destTarFile)
throws Exception {
- Preconditions.checkState(_peerDownloadScheme != null, "Download peers
require non null peer download scheme");
- List<URI> peerSegmentURIs =
- PeerServerSegmentFinder.getPeerServerURIs(_helixManager,
_tableNameWithType, segmentName, _peerDownloadScheme);
- if (peerSegmentURIs.isEmpty()) {
- String msg = String.format("segment %s doesn't have any peers",
segmentName);
- LOGGER.warn(msg);
- // HelixStateTransitionHandler would catch the runtime exception and
mark the segment state as Error
- throw new RuntimeException(msg);
- }
+ Preconditions.checkState(_peerDownloadScheme != null, "Peer download is
not enabled for table: %s",
+ _tableNameWithType);
try {
- // Next download the segment from a randomly chosen server using
configured scheme.
- SegmentFetcherFactory.fetchAndDecryptSegmentToLocal(peerSegmentURIs,
destTarFile, zkMetadata.getCrypterName());
- LOGGER.info("Fetched segment {} from peers: {} to: {} of size: {}",
segmentName, peerSegmentURIs, destTarFile,
+ SegmentFetcherFactory.fetchAndDecryptSegmentToLocal(segmentName,
_peerDownloadScheme, () -> {
+ List<URI> peerServerURIs =
+ PeerServerSegmentFinder.getPeerServerURIs(_helixManager,
_tableNameWithType, segmentName,
+ _peerDownloadScheme);
+ Collections.shuffle(peerServerURIs);
+ return peerServerURIs;
+ }, destTarFile, zkMetadata.getCrypterName());
+ _logger.info("Downloaded tarred segment: {} from peers to: {}, file
length: {}", segmentName, destTarFile,
Review Comment:
It should be `_logger` which contains the table name info.
The actual URI picked is logged on the segment fetcher side
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