elasticsearch 如何在ApacheFlink中连接到elasticsearch 5.x
ApacheFlink版本为1.1.3,elasticsearch版本为5.1.1 flink文件仅针对elasticsearch 2.x API(flink-connector-elasticsearch2_2.1.1)进行解释 elasticsearch 5.x是否没有flink连接器API 我尝试将此版本用于elasticsearch 5.x,但遇到如下错误 弗林克例外elasticsearch 如何在ApacheFlink中连接到elasticsearch 5.x,elasticsearch,apache-flink,elasticsearch,Apache Flink,ApacheFlink版本为1.1.3,elasticsearch版本为5.1.1 flink文件仅针对elasticsearch 2.x API(flink-connector-elasticsearch2_2.1.1)进行解释 elasticsearch 5.x是否没有flink连接器API 我尝试将此版本用于elasticsearch 5.x,但遇到如下错误 弗林克例外 01/03/2017 20:01:21 Job execution switched to status FAILIN
01/03/2017 20:01:21 Job execution switched to status FAILING.
java.lang.RuntimeException: Client is not connected to any Elasticsearch nodes!
at org.apache.flink.streaming.connectors.elasticsearch2.ElasticsearchSink.open(ElasticsearchSink.java:172)
at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91)
at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:376)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:256)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:585)
at java.lang.Thread.run(Thread.java:745)
elasticsearch日志
[2017-01-03T20:01:21,642][WARN ][o.e.h.n.Netty4HttpServerTransport] [7CTs2-R] caught exception while handling client http traffic, closing connection [id: 0xbce51ef2, L:/127.0.0.1:9200 - R:/127.0.0.1:58429]
java.io.IOException: The current connection has been interrupted by a remote host
at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[?:?]
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) ~[?:?]
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:?]
at sun.nio.ch.IOUtil.read(IOUtil.java:197) ~[?:?]
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[?:?]
at io.netty.buffer.PooledHeapByteBuf.setBytes(PooledHeapByteBuf.java:261) ~[netty-buffer-4.1.6.Final.jar:4.1.6.Final]
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1100) ~[netty-buffer-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:366) ~[netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:118) [netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:651) [netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:536) [netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:490) [netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:450) [netty-transport-4.1.6.Final.jar:4.1.6.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873) [netty-common-4.1.6.Final.jar:4.1.6.Final]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Apache Flink 1.1.3不包括用于Elasticsearch 5.x的连接器 对于这样的连接器,有一些工作正在进行中(,),但尚未将其添加到Flink代码库中
您可以尝试根据pull请求作者的创建连接器。您应该能够使用下面的依赖项并使其工作 请注意,flink发行版似乎至少对我在Mac上的elasticsearch5依赖项不起作用。因此,如果您可以将其降级为1.3-SNAPSHOT,它应该可以工作 我能够让它工作并将事件发布到Elastic Search 5.4 更改以下内容 在pom.xml文件中
1.3-1
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-connector-elasticsearch5_2.10</artifactId>
<version>${flink.version}</version>
</dependency>
org.apache.flink
flink-connector-elasticsearch5_2.10
${flink.version}
在使用elasticsearch2的Java代码中,将其更改为5,如下所示
导入org.apache.flink.streaming.connectors.elasticsearch5.ElasticsearchSink
在扩展ElasticSearchSink函数的类中,将此方法(如PopularPlaceInserter中的方法)与现有的process方法一起添加。确保更改elasticsearch的索引和映射名称类型,并且应该能够运行该程序
public IndexRequest createIndexRequest(String element) {
Map<String, String> json = new HashMap<>();
json.put("data", element);
return Requests.indexRequest()
.index("nyc-idx")
.type("popular-locations")
.source(json);
}
public IndexRequest createIndexRequest(字符串元素){
Map json=newhashmap();
put(“数据”,元素);
返回请求。indexRequest()
.索引(“纽约市idx”)
.类型(“流行地点”)
.来源(json);
}