bhattmanish98 commented on code in PR #7817:
URL: https://github.com/apache/hadoop/pull/7817#discussion_r2314009761
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hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsConnectionManager.java:
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@@ -290,35 +298,45 @@ private void logDebug(String message, Object... args) {
* @param route the HTTP route for which connections are created
* @param numberOfConnections the number of connections to create
*/
- private void cacheExtraConnection(final HttpRoute route, final int
numberOfConnections) {
- if (!isCaching.getAndSet(true)) {
- long start = System.currentTimeMillis();
- // Only one thread allowed at a time
- ExecutorService executorService =
Executors.newFixedThreadPool(Math.min(numberOfConnections, 5));
+ private void cacheExtraConnection(final HttpRoute route,
+ final int numberOfConnections) {
+ if (!isCacheRefreshInProgress.getAndSet(true)) {
+ long start = System.nanoTime();
+ CountDownLatch latch = new CountDownLatch(numberOfConnections);
for (int i = 0; i < numberOfConnections; i++) {
- executorService.submit(() -> {
+ kac.getFixedThreadPool().submit(() -> {
+ HttpClientConnection conn = null;
try {
- HttpClientConnection conn = httpConnectionFactory.create(route,
null);
- connect(conn, route, connectionTimeout, new
AbfsManagedHttpClientContext());
+ conn = httpConnectionFactory.create(route, null);
+ connect(conn, route, abfsConfiguration.getHttpConnectionTimeout(),
+ new AbfsManagedHttpClientContext());
addConnectionToCache(conn);
} catch (Exception e) {
- logDebug("Error creating connection: {}", e.getMessage());
+ logDebug("Error creating connection: {}", e.getMessage());
+ if (conn != null) {
Review Comment:
It should be in catch block only. In case of no exception, the connection
will be put to cache for reuse. So, we should not close the connection in case
there is no exception.
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