IndexMissingException [[wham]缺失

Question

浏览:http://127.0.0.1:9200/wham/_search
给我:

{
  "error": "IndexMissingException[[wham] missing]",
  "status": 404
}

我根据这些文件设置了所有内容:

• http://blog.comperiosearch.com/blog/2014/01/30/elasticsearch-indexing-sql-databases-the-easy-way/
• https://github.com/jprante/elasticsearch-river-jdbc
• https://github.com/jprante/elasticsearch-river-jdbc/wiki/Step-by-step-recipe-for-setting-up-the-river-with-PostgreSQL
• 如何在预先存在的SQL数据库之上使用Elastic Search？

最后一个是目前最有帮助的.
那很难过,我通过curl使用了两个不同的"设置"查询来创建我的河流:

curl -XPUT 'localhost:9200/_river/wham/_meta' -d '{
  "type": "jdbc",
  "jdbc": {
    "url": "jdbc:postgresql://localhost:5432/testdb",
    "user": "postgres",
    "password": "passywordu",
    "index": "source",
    "type": "wham",
    "sql": "select * from testtable;"
  }
}'

然后我尝试了这是上面最后一个链接的修改版本.

curl -XPUT 'localhost:9200/_river/wham/_meta' -d '{
  "type": "jdbc",
  "jdbc": {
    "strategy": "simple",
    "poll": "5s",
    "scale": 0,
    "autocommit": false,
    "fetchsize": 10,
    "max_rows": 0,
    "max_retries": 3,
    "max_retries_wait": "10s",
    "url": "jdbc:postgresql://localhost:5432/testdb",
    "user": "postgres",
    "password": "passywordu",
    "sql": "select * from testtable",
    "index": "wham"
  }
}'

我正在使用最后一个卷发并http://127.0.0.1:9200/_river/wham/_status给我这个:

{
  "_index": "_river",
  "_type": "wham",
  "_id": "_status",
  "_version": 4,
  "found": true,
  "_source": {
    "node": {
      "id": "v1DmcsEOSbKfEbjRdwLYOg",
      "name": "Miles Warren",
      "transport_address": "inet[/192.168.43.211:9300]"
    }
  }
}

所以河流在那里,但我没有看到任何查询到达我的postgresql数据库引擎.我相应地设置了:

su - postgres
initdb --locale en_US.UTF-8 -E UTF8 -D '/tmp/testdb'
postgres -D /tmp/testdb
createdb testdb
psql -d testdb

CREATE TABLE testtable (
    source      varchar(20) NOT NULL,
    destination varchar(20) NOT NULL,
    service     int, NOT NULL
);

INSERT INTO testtable VALUES('192.168.0.10', '192.168.0.1', 80)
INSERT INTO testtable VALUES('192.168.0.11', '192.168.0.2', 21)

我可以在默认端口查询数据库,它使用用户名和密码运行正常.
我哪里出错了？我是否误解了弹性搜索或者我是否应该能够/wham/_search从提到的SQL查询中获取所有结果？

Answer 1

我认为你对查询感到困惑

查询1)

  curl -XPUT 'localhost:9200/_river/wham/_meta' -d '{
        "type" : "jdbc",
        "jdbc" : {
            "url" : "jdbc:postgresql://localhost:5432/testdb",
            "user" : "postgres",
            "password" : "passywordu",
            "index" : "source",
            "type" : "wham",
            "sql" : "select * from testtable;"
        }
   }'

同时使用上面的查询

您创建名为" source " 的索引.因为你创建了一个索引类型的wham.所以在执行上面的卷曲之后.您需要使用以下格式查询数据

    http://127.0.0.1:9200/source/wham/_search

它意味着在索引"source"中搜索数据并输入"wham".

查询2)

curl -XPUT 'localhost:9200/_river/wham/_meta' -d '{
"type" : "jdbc",
"jdbc" : {
    "strategy" : "simple",
    "poll" : "5s",
    "scale" : 0,
    "autocommit" : false,
    "fetchsize" : 10,
    "max_rows" : 0,
    "max_retries" : 3,
    "max_retries_wait" : "10s",
    "url" : "jdbc:postgresql://localhost:5432/testdb",
    "user" : "postgres",
    "password" : "passywordu",
    "sql" : "select * from testtable",
    "type": "typename", //add the type of documents to be indexed[like tables in RDBMS]
    "index" : "wham"
}
      }'

同时使用上面的查询

你创建一个名为" wham " 的索引.因为你创建了一个索引类型的wham.所以在执行上面的卷曲之后.您需要使用以下格式查询数据

    http://127.0.0.1:9200/wham/typename/_search [or]   
    http://127.0.0.1:9200/wham/_search

它意味着在索引"wham"和indextype"typename"中搜索数据.

在尝试上面之前curl.delete _river索引并尝试.如果数据不重要清除数据文件夹并尝试..!

希望能帮助到你..!