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https://issues.apache.org/jira/browse/GEARPUMP-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303691#comment-15303691
]
ASF GitHub Bot commented on GEARPUMP-122:
-----------------------------------------
Github user huafengw commented on a diff in the pull request:
https://github.com/apache/incubator-gearpump/pull/25#discussion_r64866016
--- Diff:
external/kafka/src/main/java/org/apache/gearpump/streaming/kafka/KafkaSource.java
---
@@ -0,0 +1,54 @@
+/*
+ * 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.gearpump.streaming.kafka;
+
+import kafka.common.TopicAndPartition;
+import org.apache.gearpump.streaming.kafka.lib.source.AbstractKafkaSource;
+import org.apache.gearpump.streaming.kafka.lib.util.KafkaClient;
+import org.apache.gearpump.streaming.kafka.lib.source.consumer.FetchThread;
+import org.apache.gearpump.streaming.kafka.util.KafkaConfig;
+import org.apache.gearpump.streaming.transaction.api.CheckpointStore;
+import org.apache.gearpump.streaming.transaction.api.TimeReplayableSource;
+
+import java.util.Properties;
+
+/**
+ * USER API for kafka source connector.
+ * Please refer to {@link AbstractKafkaSource} for detailed descriptions
and implementations.
+ */
+public class KafkaSource extends AbstractKafkaSource implements
TimeReplayableSource {
+
+ public KafkaSource(String topic, Properties properties) {
+ super(topic, properties);
+ }
+
+ // constructor for tests
+ KafkaSource(String topic, Properties properties,
+ KafkaConfig.KafkaConfigFactory configFactory,
+ KafkaClient.KafkaClientFactory clientFactory,
+ FetchThread.FetchThreadFactory threadFactory) {
+ super(topic, properties, configFactory, clientFactory, threadFactory);
+ }
+
+ /**
+ * for tests only
+ */
+ void addPartitionAndStore(TopicAndPartition tp, CheckpointStore store) {
--- End diff --
```protected```?
> KafkaSource Stuck
> -----------------
>
> Key: GEARPUMP-122
> URL: https://issues.apache.org/jira/browse/GEARPUMP-122
> Project: Apache Gearpump
> Issue Type: Bug
> Components: kafka
> Affects Versions: 0.8.0
> Reporter: Qi Shu
> Assignee: Manu Zhang
> Fix For: 0.8.1
>
> Attachments: 2.png, screenshot-1.png
>
>
> Kafka's version is 2.10-0.8.2.0 and deployed on a cluster of 3 machines.
> Gearpump's version is 2.11-0.8.0 and deployed on local mode.
> The app running on gearpump is a java example Kafka2Kafka.
> The topic has millions of messages in It。
> After app started for a while, there were no messages received from kafka,
> but kafka console can recevie messages from that topic.
> And if I use the kafka source without offset checkpoint, then messages begin
> to flow.
> "screenshot-1.png" means app started for 7 minutes and no messages received
> from kafka source.
> "2.png" was a screen shot of JProfiler, I use JProfiler to watch the thread
> of Gearpump, and it seems the kafka source stucked when doing offset
> checkpoint.
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