leixm commented on code in PR #1146:
URL:
https://github.com/apache/incubator-uniffle/pull/1146#discussion_r1381190550
##########
client-spark/spark3/src/main/java/org/apache/spark/shuffle/RssShuffleManager.java:
##########
@@ -1104,4 +1112,79 @@ private ShuffleHandleInfo getRemoteShuffleHandleInfo(int
shuffleId) {
public void addFailuresShuffleServerInfos(String shuffleServerId) {
failuresShuffleServerIds.add(shuffleServerId);
}
+
+ /**
+ * Reassign the ShuffleServer list for ShuffleId
+ *
+ * @param shuffleId
+ * @param numPartitions
+ */
+ @Override
+ public synchronized boolean reassignShuffleServers(
+ int stageId, int stageAttemptNumber, int shuffleId, int numPartitions) {
+ String stageIdAndAttempt = stageId + "_" + stageAttemptNumber;
+ Boolean needReassgin =
serverAssignedInfos.computeIfAbsent(stageIdAndAttempt, id -> false);
+ if (!needReassgin) {
+ String storageType =
sparkConf.get(RssSparkConfig.RSS_STORAGE_TYPE.key());
+ RemoteStorageInfo defaultRemoteStorage =
+ new
RemoteStorageInfo(sparkConf.get(RssSparkConfig.RSS_REMOTE_STORAGE_PATH.key(),
""));
+ RemoteStorageInfo remoteStorage =
+ ClientUtils.fetchRemoteStorage(
+ id.get(), defaultRemoteStorage, dynamicConfEnabled, storageType,
shuffleWriteClient);
+ Set<String> assignmentTags =
RssSparkShuffleUtils.getAssignmentTags(sparkConf);
+ int requiredShuffleServerNumber =
+ RssSparkShuffleUtils.getRequiredShuffleServerNumber(sparkConf);
+ long retryInterval =
sparkConf.get(RssSparkConfig.RSS_CLIENT_ASSIGNMENT_RETRY_INTERVAL);
+ int retryTimes =
sparkConf.get(RssSparkConfig.RSS_CLIENT_ASSIGNMENT_RETRY_TIMES);
+ int estimateTaskConcurrency =
RssSparkShuffleUtils.estimateTaskConcurrency(sparkConf);
+ /** Before reassigning ShuffleServer, clear the ShuffleServer list in
ShuffleWriteClient. */
+ shuffleWriteClient.unregisterShuffle(id.get(), shuffleId);
+ Map<Integer, List<ShuffleServerInfo>> partitionToServers;
+ try {
+ partitionToServers =
+ RetryUtils.retry(
+ () -> {
+ ShuffleAssignmentsInfo response =
+ shuffleWriteClient.getShuffleAssignments(
+ id.get(),
+ shuffleId,
+ numPartitions,
+ 1,
+ assignmentTags,
+ requiredShuffleServerNumber,
+ estimateTaskConcurrency,
+ failuresShuffleServerIds);
+ registerShuffleServers(
+ id.get(), shuffleId,
response.getServerToPartitionRanges(), remoteStorage);
+ return response.getPartitionToServers();
+ },
+ retryInterval,
+ retryTimes);
+
+ } catch (Throwable throwable) {
+ throw new RssException("registerShuffle failed!", throwable);
+ }
+ /**
+ * we need to clear the metadata of the completed task, otherwise some
of the stage's data
+ * will be lost
+ */
+ try {
+ unregisterAllMapOutput(shuffleId);
Review Comment:
Okay.
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