jerqi commented on code in PR #470:
URL: https://github.com/apache/incubator-uniffle/pull/470#discussion_r1068850390
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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) {
Review Comment:
Could we copy the allServers , modify the order of copy and then use the
copy?
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