zuston commented on code in PR #1652:
URL:
https://github.com/apache/incubator-uniffle/pull/1652#discussion_r1574227737
##########
client-spark/spark3/src/main/java/org/apache/spark/shuffle/RssShuffleManager.java:
##########
@@ -1201,61 +1209,75 @@ public synchronized boolean
reassignAllShuffleServersForWholeStage(
// this is only valid on driver side that exposed to being invoked by grpc
server
@Override
- public ShuffleServerInfo reassignFaultyShuffleServerForTasks(
- int shuffleId, Set<Integer> partitionIds, String faultyShuffleServerId) {
+ public ShuffleHandleInfo reassignFaultyShuffleServerForTasks(
+ int shuffleId,
+ Set<Integer> partitionIds,
+ String faultyShuffleServerId,
+ Set<Integer> needLoadBalancePartitionIds) {
ShuffleHandleInfo handleInfo = shuffleIdToShuffleHandleInfo.get(shuffleId);
synchronized (handleInfo) {
// find out whether this server has been marked faulty in this shuffle
// if it has been reassigned, directly return the replacement server.
// otherwise, it should request new servers to reassign
- Set<ShuffleServerInfo> replacements =
- handleInfo.getExistingReplacements(faultyShuffleServerId);
+ Set<ShuffleServerInfo> replacements =
handleInfo.getReplacements(faultyShuffleServerId);
if (replacements == null) {
- replacements = requestServersForTask(shuffleId, partitionIds,
faultyShuffleServerId);
+ int requiredServerNum = 1;
+ if (CollectionUtils.isNotEmpty(needLoadBalancePartitionIds)) {
+ requiredServerNum = partitionReassignLoadBalanceServerNum;
+ }
+ Set<String> faultyServers = new
HashSet<>(handleInfo.listFaultyServers());
+ faultyServers.add(faultyShuffleServerId);
+ replacements =
+ reassignServerForTask(shuffleId, partitionIds, faultyServers,
requiredServerNum);
}
- handleInfo.updateReassignment(partitionIds, faultyShuffleServerId,
replacements);
+ handleInfo.updateAssignment(
+ partitionIds, faultyShuffleServerId, replacements,
needLoadBalancePartitionIds);
Review Comment:
The task t2 will reuse the s1's replacement that being reassigned for the t1.
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