bhattmanish98 commented on code in PR #7817:
URL: https://github.com/apache/hadoop/pull/7817#discussion_r2329631985
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hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsConnectionManager.java:
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@@ -192,12 +204,20 @@ public boolean cancel() {
* If so, it starts a new thread to cache extra connections.
*/
private void triggerConnectionRefreshIfNeeded() {
- if (kac.size() <= abfsConfiguration.getApacheMinTriggerRefreshCount()
- && !isCacheRefreshInProgress.get() && !kac.getIsClosed()) {
+ if (!isCacheRefreshInProgress.get() && !kac.getIsClosed()
+ && kac.getFixedThreadPool() != null
+ && kac.getSingleThreadPool() != null
+ && kac.size()
+ <= abfsConfiguration.getApacheMinTriggerRefreshCount()) {
// Use a single-threaded executor or thread pool instead of raw
thread
- kac.getSingleThreadExecutor().submit(() ->
- cacheExtraConnection(route,
- abfsConfiguration.getApacheCacheRefreshCount()));
+ try {
+ kac.getSingleThreadPool().submit(() ->
+ cacheExtraConnection(route,
+ abfsConfiguration.getApacheCacheRefreshCount()));
+ } catch (RejectedExecutionException e) {
Review Comment:
This is intended to prevent the creation of a new connection if the cache
has already been closed. If a thread tries to access the cache after the cache
has been closed, a CacheClosed exception will be thrown, so according to the
design, we should not throw an exception from this point.
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