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From GitBox <...@apache.org>
Subject [GitHub] [zookeeper] anmolnar commented on a change in pull request #1085: [ZOOKEEPER-3384] Add SO_LINGER socket option to avoid long quorum unavailable during close with full send buffer
Date Fri, 27 Sep 2019 13:03:40 GMT
anmolnar commented on a change in pull request #1085: [ZOOKEEPER-3384] Add SO_LINGER socket
option to avoid long quorum unavailable during close with full send buffer
URL: https://github.com/apache/zookeeper/pull/1085#discussion_r329060854
 
 

 ##########
 File path: zookeeper-server/src/main/java/org/apache/zookeeper/util/SocketUtils.java
 ##########
 @@ -0,0 +1,44 @@
+/**
+ * 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.zookeeper.util;
+
+import java.net.Socket;
+import java.net.SocketException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Util class used to set the common options on socket.
+ */
+public class SocketUtils {
+    private static final Logger LOG = LoggerFactory.getLogger(SocketUtils.class);
+
+    public static final String SOCKET_SO_LINGER = "zookeeper.quorum.solinger";
+    private static int soLinger = 0;
+
+    static {
+        soLinger = Integer.getInteger(SOCKET_SO_LINGER, 0);
+        LOG.info("{} = {}", SOCKET_SO_LINGER, soLinger);
+    }
+
+    public static void setSocketOption(Socket sock, int soTimeout) throws SocketException
{
+        sock.setSoTimeout(soTimeout);
+        sock.setSoLinger(true, soLinger);
 
 Review comment:
   There's no way to turn it off. Is that intentional?

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