bhattmanish98 commented on code in PR #7817:
URL: https://github.com/apache/hadoop/pull/7817#discussion_r2280768741
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hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/KeepAliveCache.java:
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@@ -259,48 +151,39 @@ public synchronized HttpClientConnection get()
* will make space for the new connection. If the cache is closed or of zero
size,
* the connection is closed and not added to the cache.
*
- * @param httpClientConnection HttpClientConnection to be cached
+ * @param conn HttpClientConnection to be cached
* @return true if the HttpClientConnection is added in active cache, false
otherwise.
*/
- public synchronized boolean put(HttpClientConnection httpClientConnection) {
- if (isClosed.get() || maxConn == 0) {
- closeHttpClientConnection(httpClientConnection);
+ public boolean add(HttpClientConnection conn) {
+ if (conn == null) {
+ LOG.warn("Attempt to add null HttpClientConnection to the cache for
account: {}",
+ accountNamePath);
return false;
}
- if (size() == maxConn) {
- closeHttpClientConnection(get(0).httpClientConnection);
- subList(0, 1).clear();
+ if (isClosed.get() || maxCacheConnections <= 0
+ || !conn.isOpen() || conn.isStale()) {
+ closeHttpClientConnection(conn);
+ return false;
+ }
+ while (size() >= maxCacheConnections) {
Review Comment:
I have kept this like this intentionally because making it synchronized will
come with performance impact. Since while condition is checking for >=
condition so it will clear all extra connections at the end and maintain the
required number of connections in the cache.
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