[GitHub] [ratis] szetszwo commented on a diff in pull request #666: RATIS-1603. TimeoutScheduler can have a huge amount of threads and cause OOM.

[GitBox <gi...@apache.org>]

szetszwo commented on code in PR #666:
URL: https://github.com/apache/ratis/pull/666#discussion_r938989261


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ratis-common/src/main/java/org/apache/ratis/util/TimeoutExecutor.java:
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@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ratis.util;
+
+import org.apache.ratis.util.function.CheckedRunnable;
+import org.slf4j.Logger;
+
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+/** Execute timeout tasks. */
+public interface TimeoutExecutor {
+  int MAXIMUM_POOL_SIZE =  8;
+  static TimeoutExecutor getInstance() {
+    return TimeoutTimer.getInstance();
+  }
+
+  /** @return the number of scheduled but not completed timeout tasks. */
+  int getQueueSize();

Review Comment:
   Sure.



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