elasticsearch delete

Elasticsearch is a distributed, restful search and Analysis server, like Apache SOLR, which is a lucence-based index server, but I think the advantage of Elasticsearch versus SOLR is: Lightweight: Easy to install, download the file after a command can be started; Schema Free: You can submit JSON objects of any structure to the server, using Schema.xml to specify the index structure in SOLR; Mul

centralize logging on CentOS 7 using Logstash and Kibana Centralized logging is useful when trying to identify a problem with a server or application because it allows you to search all logs in a single location. It is also useful because it allows you to identify issues across multiple servers by associating their logs within a specific time frame. This series of tutorials will teach you how to install Logstash and Kibana on CentOS, and then how to add more filters to construct your log data.

server in a cluster that, as part of a cluster, stores your data and participates in the indexing and searching capabilities of the cluster. Like a cluster, a node is also identified by a name, by default, the name is random. This name will be assigned to the node when it is started. This name is important for management, because in this management process, you determine which servers in the network correspond to which nodes in the Elasticsearch clus

First, what is Elasticsearch?Elasticsearch is the first choice of open source full-text search engine, it can quickly store, search and analyze massive data. Stack Overflow,github, etc. are in use.Elasticsearch is written in Java and uses Lucene for indexing and searching internally, but it makes full-text retrieval simple, and instead provides a simple, consistent set of RESTful APIs by hiding the complexi

": "elasticsearch", "posttime": "2017-05-01", "content": "elasticsearch is helpfull!" }} Obtain a document that does not exist: GET my_blog/article/2 Return Value: { "_index": "my_blog", "_type": "article", "_id": "2", "found": false}2.2 test whether the document exists Use head to test whether the document exists: HEAD my_blog/article/1200 - OKHEAD my_blog/article/2404 - Not Found2.3 batch acqui

Elasticsearch\client (); $sql = "SELECT * from Log"; $conn = Get_conn (); $stmt = $conn->query ($sql); $rtn = $stmt->fetchall (); //delete index which already created $params = Array (); $params [' index '] = ' Log_index '; $client->indices (),Delete ($params); //create index on LOG_DATE,SRC_IP,DEST_IP $rtnCount = count ($rtn);

under the Composite Query tab, select the Get action type (equivalent to select), and you can see the details of the index file as shown in the following figure. Iv. operating InstructionsThe Elasticsearch's head uses 4 of the HTTP protocol's request methods, including: Post is the number of submissions to the server; Get is to send a request to obtain a resource on the server; Put and post all send data to the server, but it usually specifies where the resource is stored;

of course we can change the name of the cluster and the name of the node at startup. For example:./elasticsearch--cluster.name My_cluster_name--node.name my_node_nameBy default, Elasticsearch uses the rest API provided by Port 9200. The port is configurable.On the native access http://127.0.0.1:9200/Will get a little bit of content:{"Name": "Rintrah", "cluster_name": "