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https://issues.apache.org/jira/browse/ZOOKEEPER-2933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16244983#comment-16244983
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ASF GitHub Bot commented on ZOOKEEPER-2933:
-------------------------------------------
Github user afine commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/415#discussion_r149832062
--- Diff:
src/java/test/org/apache/zookeeper/server/util/SerializeUtilsTest.java ---
@@ -0,0 +1,73 @@
+/**
+ * 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.server.util;
+
+import org.apache.jute.OutputArchive;
+import org.apache.jute.Record;
+import org.apache.zookeeper.server.Request;
+import org.apache.zookeeper.txn.TxnHeader;
+import org.junit.Test;
+import org.mockito.InOrder;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.inOrder;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+public class SerializeUtilsTest {
+
+ @Test
+ public void testSerializeRequest_RequestIsNull() {
+ byte[] data = SerializeUtils.serializeRequest(null);
+ assertNull(data);
+ }
+
+ @Test
+ public void testSerializeRequest_RequestHeaderIsNull() {
+ Request request = new Request(0, 0, 0, null, null, 0);
+ byte[] data = SerializeUtils.serializeRequest(request);
+ assertNull(data);
+ }
+
+ @Test
+ public void testSerializeRequest_WithoutTxn() throws IOException {
+ TxnHeader header = mock(TxnHeader.class);
+ Request request = new Request(1, 2, 3, header, null, 4);
+ byte[] data = SerializeUtils.serializeRequest(request);
+ assertNotNull(data);
+ verify(header).serialize(any(OutputArchive.class), eq("hdr"));
+ }
+
+ @Test
+ public void testSerializeRequest_WithTxn() throws IOException {
+ Record txn = mock(Record.class);
+ TxnHeader header = mock(TxnHeader.class);
+ Request request = new Request(1, 2, 3, header, txn, 4);
+ byte[] data = SerializeUtils.serializeRequest(request);
+ assertNotNull(data);
+ InOrder inOrder = inOrder(header, txn);
--- End diff --
I'm concerned that we do not actually check that the result of serializing
the header and transaction ever make it into `data`. Would it be possible to
write this test to mock out the serialization of the `header` and `txn` then
make sure we get the `data` we expect?
> Ability to monitor the jute.maxBuffer usage in real-time
> --------------------------------------------------------
>
> Key: ZOOKEEPER-2933
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2933
> Project: ZooKeeper
> Issue Type: New Feature
> Components: jute, server
> Reporter: Andor Molnar
> Assignee: Andor Molnar
> Labels: buffer, buffer-length
> Fix For: 3.5.4, 3.6.0
>
>
> This is related to jute.maxbuffer problems on the server side when Leader
> generates a proposal that doesn't fit into Follower's Jute buffer causing the
> quorum to be broken.
> Proposed solution is to add the following new JMX Beans:
> 1. Add getJuteMaxBuffer to ZookeeperServerBean which monitors the current
> jute.maxbuffer setting,
> 2. Add get last/min/max ProposalSize to LeaderBean which monitors the size of
> the latest/min/max proposal.
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