Ngone51 commented on a change in pull request #27419:
[WIP][SPARK-30694][SHUFFLE]If exception occured while fetching blocks by
ExternalBlockClient, fail early when External Shuffle Service is not alive
URL: https://github.com/apache/spark/pull/27419#discussion_r378611424
##########
File path:
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/ExternalBlockStoreClient.java
##########
@@ -105,7 +109,23 @@ public void fetchBlocks(
(blockIds1, listener1) -> {
// Unless this client is closed.
if (clientFactory != null) {
- TransportClient client = clientFactory.createClient(host, port);
+ TransportClient client = null;
+ try {
+ client = clientFactory.createClient(host, port);
+ } catch (InterruptedException e) {
+ throw e;
+ } catch (IOException e) {
+ if (!isHostReachable(host, 3000) ||
!isHostPortConnectable(host, port)) {
Review comment:
It's also possible that `Host` is unreachable or connectable when network is
unstable, right?
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