yuqi1129 commented on a change in pull request #2662:
URL: https://github.com/apache/iotdb/pull/2662#discussion_r583643342
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File path:
cluster/src/main/java/org/apache/iotdb/cluster/client/async/AsyncClientPool.java
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@@ -81,19 +82,19 @@ public AsyncClient getClient(Node node, boolean
activatedOnly) throws IOExceptio
AsyncClient client;
// As clientCaches is ConcurrentHashMap, computeIfAbsent is thread safety.
- Deque<AsyncClient> clientStack =
+ Deque<AsyncClient> clientDeque =
clientCaches.computeIfAbsent(clusterNode, n -> new ArrayDeque<>());
synchronized (this) {
- if (clientStack.isEmpty()) {
+ if (clientDeque.isEmpty()) {
int nodeClientNum = nodeClientNumMap.getOrDefault(clusterNode, 0);
if (nodeClientNum >= maxConnectionForEachNode) {
- client = waitForClient(clientStack, clusterNode, nodeClientNum);
+ client = waitForClient(clientDeque, clusterNode);
} else {
nodeClientNumMap.put(clusterNode, nodeClientNum + 1);
client = asyncClientFactory.getAsyncClient(clusterNode, this);
}
} else {
- client = clientStack.pop();
+ client = clientDeque.getFirst();
Review comment:
Sorry, this is a mistake i make here, `getFirst()` will not remove
element from queue
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