colinmjj commented on code in PR #16:
URL: https://github.com/apache/incubator-uniffle/pull/16#discussion_r912900515
##########
server/src/main/java/org/apache/uniffle/server/ShuffleFlushManager.java:
##########
@@ -135,59 +139,62 @@ public void addToFlushQueue(ShuffleDataFlushEvent event) {
private void flushToFile(ShuffleDataFlushEvent event) {
- Storage storage = storageManager.selectStorage(event);
- if (!storage.canWrite()) {
- addPendingEvents(event);
- return;
- }
-
long start = System.currentTimeMillis();
List<ShufflePartitionedBlock> blocks = event.getShuffleBlocks();
boolean writeSuccess = false;
try {
- if (blocks == null || blocks.isEmpty()) {
- LOG.info("There is no block to be flushed: " + event);
- } else if (!event.isValid()) {
- // avoid printing error log
- writeSuccess = true;
- LOG.warn("AppId {} was removed already, event {} should be dropped",
event.getAppId(), event);
- } else {
- ShuffleWriteHandler handler = storage.getOrCreateWriteHandler(new
CreateShuffleWriteHandlerRequest(
- storageType,
- event.getAppId(),
- event.getShuffleId(),
- event.getStartPartition(),
- event.getEndPartition(),
- storageBasePaths,
- shuffleServerId,
- hadoopConf,
- storageDataReplica));
+ Storage storage = storageManager.selectStorage(event);
+ // storage info maybe null if the application cache was cleared already
+ if (storage != null) {
+ if (!storage.canWrite()) {
+ addPendingEvents(event);
Review Comment:
right, it should be out of the try block.
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