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Cloudera, BigData, Semantic IoT, Hadoop, NoSQL

Cloudera CDH/CDP 및 Hadoop EcoSystem, Semantic IoT등의 개발/운영 기술을 정리합니다. gooper@gooper.com로 문의 주세요.


curl -u 'xxxx':'xxxx' 'http://CM_server.domain.com:7180/api/v11/clusters/cluster/services/impala/impalaQueries?from=2017-10... statement RLIKE ".*fawzea.*"' >>f.json


http://CM-server.domain.com:7180/api/v19/clusters/cluster/services/impala/impalaQueries?statment%20RLIKE%20%22.*test.*%22




*참고 : https://cloudera.github.io/cm_api/apidocs/v19/index.html

Introduction

This document describes the Cloudera Manager REST API. All requests and responses are presented in Javascript Object Notation (JSON).

The API resources listed below follow standard Create-Read-Update-Delete (CRUD) semantics where the HTTP request path defines the entity to be acted on and the HTTP method expresses the type of action to perform.

HTTP MethodOperation
POSTCreate entries
GETRead entries
PUTUpdate or edit entries
DELETEDelete entries

All collections in the API use plural names, 'users', instead of the singular, 'user'. To address a specific user in the system, expand the URL path to include the user identifier. For example, '/users/foo' identifies user 'foo' and '/users/bar' identifies user 'bar'.

CollectionPOST (create)GET (read)PUT (update)DELETE (delete)
/usersCreate a new userList all users in the systemBulk update all usersDelete all users
/users/fooerrorRead information about user 'foo'If user 'foo' exists, update their information; otherwise, error.Delete user 'foo'

Keep in mind that not all collections support all operations. For example, events in the system are read-only; you cannot create new events with the API.

You can list the entries in a collection using one of two views: 'summary' or 'full'. The default 'summary' view provides the core information about each entry. The 'full' view is more heavyweight and provides a fully expanded view of each entry. The view is controlled by a query parameter called 'view' e.g. 'GET /users?view=full'.

HTTP requests should set the "Content-Type" header to "application/json" for most calls, unless specified otherwise.

Authentication

The Cloudera Manager API uses HTTP basic access authentication. It accepts the same user credentials as the web interface. Different users may have different levels of access, as defined by their roles. (See the user management API calls for more.) With every authenticated request, the server returns a session cookie, which can be subsequently used for authentication.

Error Code

The API returns HTTP code in the 400s and 500s upon errors:

  • 400 — Invalid request parameters; Malformed requests
  • 401 — Authentication failure
  • 403 — Authorization failure
  • 404 — Object not found
  • 500 — Internal API error
  • 503 — Response temporarily unavailable; caller should retry later

See /tools/echoError for a discussion on the body of an error response.

API Usage Tutorial

Tutorial link.

API Version

The API can be queried for the latest version it supports. By making a GET request to the '/version' URL, a string will be returned with the highest supported version (for example, "v2").

Note that servers that only support API v1 do not support this call. In that case, a 404 error will be returned, and can be used to detect that the server only supports v1.

The version should be prepended to the path of the REST resources listed below. The documentation of the different resources lists the version which added the particular functionality.

REST Resources

This API supports a Representational State Transfer (REST) model for accessing a set of resources through a fixed set of operations. The following resources are accessible through the RESTful model:

There is also a WADL document describing the REST API.

Data Model

All endpoints act on a common set of data. The Cloudera Manager API uses JSON.

Data Elements

번호 제목 날짜 조회 수
310 tablet별 disk사용량 확인하는 방법 2021.08.27 3754
309 Caused by: java.lang.ClassNotFoundException: org.apache.spark.Logging 발생시 조치사항 2017.04.19 3751
308 문자열을 숫자(integer)로 casting하기 2016.01.13 3751
307 mysql sqoop작업을 위해서 mysql-connector-java.jar을 추가하는 경우 확실하게 인식시키는 방법 2020.05.11 3747
306 update(update와 delete->insert)사용시 주의/참고사항 2016.01.06 3747
305 fuseki webUI를 통해서 전체 카운트를 하면 급격하게 메모리를 소모해 버리는 문제가 있음 file 2017.04.28 3742
304 small file 한개 파일로 만들기(text file 혹은 parquet file의 테이블) 2022.07.04 3740
303 impala테이블 쿼리시 max_row_size 관련 오류가 발생할때 조치사항 2020.02.12 3736
302 Hadoop의 Datanode를 Decommission하고 나서 HBase의 regionservers파일에 해당 노드명을 지웠는데 여전히 "Dead regionser"로 표시되는 경우 처리 2018.01.25 3734
301 특정 커밋 시점(commit id를 기준으로)으로 돌리기(reset) 2016.11.21 3732
300 root계정으로 MariaDB설치후 mysql -u root -p로 db에 접근하여 바로 해줘야 하는일..(케릭터셑은 utf8) 2015.10.02 3731
299 cassandra cluster 문제가 있는 node제거 하기(DN상태의 노드가 있으면 cassandra cluster 전체에 문제가 발생하므로 반드시 제거할것) 2017.06.21 3727
298 거침없이 배우는 Drools 책의 샘플소스 file 2016.07.22 3727
297 Hive JDBC Connection과 유형별 에러및 필요한 jar파일 2021.05.24 3724
296 cloudera의 hue에서 사용자가 사용한 쿼리 목록 2020.02.07 3720
295 kafka로 부터 메세지를 stream으로 받아 처리하는 spark샘플소스(spark의 producer와 consumer를 sbt로 컴파일 하고 서버에서 spark-submit하는 방법) 2016.07.13 3719
294 lagom에서 제공하는 초기 생성기능을 이용하여 생성한 프로젝트의 소스 파악 2018.01.16 3715
293 fuseki에 update하는 방법(java api이용)및 주의 사항 2015.12.30 3715
292 hadoop 어플리케이션을 사용하는 사용자 변경시 바꿔줘야 하는 부분 2016.09.23 3711
291 spark-submit 실행시 "java.lang.OutOfMemoryError: Java heap space"발생시 조치사항 2018.02.01 3710
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