Elasticsearch 1.3.2 Java api setScript在执行时引发异常

Question

在Elasticsearch Java api版本1.3.2中，默认情况下“ setScript（）”方法不起作用，就像Elasticsearch主站点中给出的示例一样。 我尝试了以下操作，但是在执行时引发了异常。

UpdateResponse ur = null;
Map par = new HashMap();
par.put("nsite", "newfield");
par.put("docid", "56783");
ur = client.prepareUpdate(index, type, id)
     .setScriptParams(par)
     .setScript("ctx._source.sites.nsite=docid",ScriptService.ScriptType.INLINE)
     .execute().actionGet();                
System.out.println("updated for "+site);

（注意：-在最新版本中，Elasticsearch的“ setScript”方法需要两个参数）.setScript（“ ctx._source.sites.nsite = docid”）=>错误的方法签名，脚本类型现在是强制性参数。

运行此程序时，我得到了“执行异常”，如下所示：

Exception in thread "main" org.elasticsearch.transport.TransportSerializationException: Failed to deserialize exception response from stream
    at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:173)
    at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:125)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:310)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.io.StreamCorruptedException: unexpected end of block data
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1369)
    at java.io.ObjectInputStream.access$300(ObjectInputStream.java:205)
    at java.io.ObjectInputStream$GetFieldImpl.readFields(ObjectInputStream.java:2132)
    at java.io.ObjectInputStream.readFields(ObjectInputStream.java:537)
    at java.net.InetSocketAddress.readObject(InetSocketAddress.java:282)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1004)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1872)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1970)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1894)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1970)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1894)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1777)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:369)
    at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:171)
    ... 23 more

Answer 1

似乎，由于某些原因，默认情况下脚本语言在es的较新版本中并不通用。 需要太明确地提供。 因此，现在提供脚本语言就可以了。 （注意：如果groovy是您在es中选择的脚本，则setScriptLang（“ groovy”）是必需的参数）。

UpdateResponse ur = null;
Map par = new HashMap();
par.put("nsite", "newfield");
par.put("docid", "56783");
ur = client.prepareUpdate(index, type, id)
     .setScriptLang("groovy")
     .setScriptParams(par)
     .setScript("ctx._source.sites.nsite=docid",ScriptService.ScriptType.INLINE)
     .execute().actionGet();                
System.out.println("updated for "+site);