jerqi commented on code in PR #470:
URL: https://github.com/apache/incubator-uniffle/pull/470#discussion_r1066944249
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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()) {
+ // allServers is shared and is not thread safe
+ synchronized (this) {
+ for (int i = allServers.size() - 2; i >= 0; i--) {
+ ShuffleServerInfo serverInfo = allServers.get(i);
+ if (shuffleServerBlacklist.contains(serverInfo)) {
Review Comment:
What will it happen if all the servers are added the blacklist?
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