jerqi commented on code in PR #470:
URL: https://github.com/apache/incubator-uniffle/pull/470#discussion_r1068870197
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client/src/main/java/org/apache/uniffle/client/impl/ShuffleWriteClientImpl.java:
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@@ -246,6 +259,18 @@ public SendShuffleDataResult sendShuffleData(String appId,
List<ShuffleBlockInfo
// which is minimum number when there is at most *replicaWrite - replica*
sending server failures.
for (ShuffleBlockInfo sbi : shuffleBlockInfoList) {
List<ShuffleServerInfo> allServers = sbi.getShuffleServerInfos();
+ if (replica > 1 && !shuffleServerBlacklist.isEmpty()) {
+ // We can't modify allServers directly, because allServers is shared
and is not thread safe
+ List<ShuffleServerInfo> newServerList = new ArrayList<>(allServers);
+ for (int i = newServerList.size() - 2; i >= 0; i--) {
+ ShuffleServerInfo serverInfo = newServerList.get(i);
+ if (shuffleServerBlacklist.contains(serverInfo)) {
+ newServerList.remove(i);
+ newServerList.add(serverInfo);
+ }
+ }
+ sbi.setShuffleServerInfos(newServerList);
Review Comment:
It seems that we don't need to call `setShuffleServerInfos`, we just need to
call the `genServerToBlocks` with newServerList.
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