[ElasticSearch]那些年踩过的ElasticSerch坑

1. 索引名称错误

1.1 代码

1. xiaosi@Qunar:~$ curl -XPUT 'localhost:9200/Quanr/employee/1'  '
2. > {
3. >     "first_name" : "John",
4. >     "last_name" :  "Smith",
5. >     "age" :        25,
6. >     "about" :      "I love to go rock climbing",
7. >     "interests": [ "sports", "music" ]
8. > }';
9. {"error":{"root_cause":[{"type":"invalid_index_name_exception","reason":"Invalid index name [Quanr], must be lowercase","index":"Quanr"}],"type":"invalid_index_name_exception","reason":"Invalid index name [Quanr], must be lowercase","index":"Quanr"},"status":400}curl: (3) [globbing] nested brace in column 148

1.2 报错原因

索引名称必须小写

1.3 解决方案

1. xiaosi@Qunar:~/opt/elasticsearch-2.3.3$ curl -XPUT 'localhost:9200/qunar-index/employee/1'  -d '
2. > {
3. >     "first_name" : "John",
4. >     "last_name" :  "Smith",
5. >     "age" :        25,
6. >     "about" :      "I love to go rock climbing",
7. >     "interests": [ "sports", "music" ]
8. > }';
9. {"_index":"qunar-index","_type":"employee","_id":"1","_version":1,"_shards":{"total":2,"successful":1,"failed":0},"created":true}xiaosi@Qunar:~/opt/elasticsearch-2.3.3$

2. 使用Groovy脚本更新文档报错 

2.1 代码

1. /**
2. * 使用脚本更新文档
3. * @param client
4. * @param index
5. * @param type
6. * @param id
7. */
8. public static void updateByScripted(Client client, String index, String type, String id){
10. UpdateRequestBuilder updateRequestBuilder = client.prepareUpdate();
11. updateRequestBuilder.setIndex(index);
12. updateRequestBuilder.setType(type);
13. updateRequestBuilder.setId(id);
15. // 脚本
16. Script collegeScript = new Script("ctx._source.college = \"软件学院\"", ScriptService.ScriptType.INLINE, null, null);
17. updateRequestBuilder.setScript(collegeScript);
18. // 更新文档
19. UpdateResponse response = updateRequestBuilder.get();
21. }

2.2 报错信息

1. java.lang.IllegalArgumentException: failed to execute script
3. at org.elasticsearch.action.update.UpdateHelper.executeScript(UpdateHelper.java:257)
4. at org.elasticsearch.action.update.UpdateHelper.prepare(UpdateHelper.java:197)
5. at org.elasticsearch.action.update.UpdateHelper.prepare(UpdateHelper.java:80)
6. at org.elasticsearch.action.update.TransportUpdateAction.shardOperation(TransportUpdateAction.java:174)
7. at org.elasticsearch.action.update.TransportUpdateAction.shardOperation(TransportUpdateAction.java:168)
8. at org.elasticsearch.action.update.TransportUpdateAction.shardOperation(TransportUpdateAction.java:66)
9. at org.elasticsearch.action.support.single.instance.TransportInstanceSingleOperationAction$ShardTransportHandler.messageReceived(TransportInstanceSingleOperationAction.java:244)
10. at org.elasticsearch.action.support.single.instance.TransportInstanceSingleOperationAction$ShardTransportHandler.messageReceived(TransportInstanceSingleOperationAction.java:240)
11. at org.elasticsearch.transport.TransportRequestHandler.messageReceived(TransportRequestHandler.java:33)
12. at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:75)
13. at org.elasticsearch.transport.TransportService$4.doRun(TransportService.java:376)
14. at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
15. at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
16. at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
17. at java.lang.Thread.run(Thread.java:745)
18. Caused by: ScriptException[scripts of type [inline], operation [update] and lang [groovy] are disabled]
19. at org.elasticsearch.script.ScriptService.compile(ScriptService.java:244)
20. at org.elasticsearch.script.ScriptService.executable(ScriptService.java:442)
21. at org.elasticsearch.action.update.UpdateHelper.executeScript(UpdateHelper.java:250)
22. ... 14 more

2.3 报错原因

脚本默认被禁用了。https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting.html

2.4 解决方案 

在安装目录下config文件夹找到elasticsearch.yml文件，然后添加如下配置：

1. script.engine.groovy.inline.update: on

然后重新启动ElasticSearch