Querying Logs

Function

This API is used to query logs by different dimensions, such as by cluster, IP address, or application. Pagination queries are supported. For pagination queries, the lineNum (sequence number of the final log in the last query result), type (value: next), and size parameters need to be added. The values of category, searchKey, keyWord, startTime, and endTime must be the same as those in the first query. To implement another pagination query, change the value of lineNum to the sequence number of the final log in the last query result. The rest may be deduced by analogy.

URI

POST /v1/{project_id}/als/action

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID obtained from IAM. Generally, a project ID contains 32 characters.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
type	Yes	String	API call mode. When the value is querylogs, this API is used to query logs. Enumeration values: querylogs

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Project-level token obtained from IAM.
Content-Type	Yes	String	Content type, which is application/json. Enumeration values: application/json

**Table 4** Request body parameters
Parameter	Mandatory	Type	Description
category	Yes	String	Log type. Options: app_log: application log node_log: host log custom_log: log in a custom path Enumeration values: app_log node_log custom_log
searchKey	No	SearchKey object	Log filter criteria, which vary according to log sources.
keyWord	No	String	Exact search by keyword is supported. A keyword is a word between two adjacent delimiters. Fuzzy search by keyword is supported. Example: RROR, ERRO?, ROR, ERR, or EROR. Exact search by phrase is supported. Example: Start to refresh alm Statistic. Search using AND (&&) or OR (\|\|) is supported. Example: query&&logs or query\|\|logs. Note: Default delimiters include ,'";=()[]{}@&<>/:\n\t\r and spaces.
startTime	Yes	Long	Start time of the query (UTC, in ms).
endTime	Yes	Long	End time of the query (UTC, in ms).
lineNum	No	String	Sequence number of the final log in the last query result. This parameter is not required for the first query, but is required for subsequent pagination queries.
type	No	String	Pagination query. This parameter is not required for the first query, but is required for subsequent pagination queries. Enumeration values: next
pageSize/size	No	Integer	Number of logs queried each time. Default value: 5000. Recommended value: 100. For the first query, pageSize is used. For subsequent pagination queries, size is used.
hideSyslog	No	Integer	Whether to hide the system log (icagent\kubectl) during the query. 0 (default): Hide. 1: Display. Enumeration values: 0 1
isDesc	No	Boolean	Whether to query logs based on lineNum in ascending or descending order. true: lineNum in descending order (from the latest time to the earliest time) false: lineNum in ascending order (from the earliest time to the latest time) Enumeration values: true false

**Table 5** SearchKey
Parameter	Mandatory	Type	Description
clusterId	Yes	String	CCE cluster: CCE cluster ID Custom cluster: APM Host log: CONFIG_FILE
nameSpace	No	String	CCE cluster namespace.
appName	No	String	Service name.
podName	No	String	Container instance name.
pathFile	No	String	Log file name.
hostIP	No	String	IP address of the VM where logs are located.

Response Parameters

Status code: 200

**Table 6** Response body parameters
Parameter	Type	Description
errorCode	String	Response code. SVCSTG.ALS.200200: Success response.
errorMessage	String	Response message.
result	LogsResults object	Metadata, including results and the total number of returned records.

**Table 7** LogsResults
Parameter	Type	Description
total	Integer	Number of records that can be returned.
data	Array of LogItem objects	Data array.

**Table 8** LogItem
Parameter	Type	Description
category	String	Log type.
loghash	String	Hash value of the log source.
clusterId	String	CCE cluster ID.
clusterName	String	CCE cluster name.
nameSpace	String	CCE cluster namespace.
podName	String	CCE container instance name.
appName	String	Service name.
serviceID	String	Service ID of an AOM resource.
containerName	String	CCE container name.
logContent	String	Raw log data.
pathFile	String	Absolute path of a log file.
hostIP	String	IP address of the VM where log files are located.
hostId	String	ID of a host in a cluster.
hostName	String	Name of the VM where log files are located.
collectTime	String	Log collection time (UTC time, in ms).
lineNum	String	Sequence number of a log line.
logContentSize	String	Size of a single-line log.

Example Requests

Query application logs in a cluster.

POST https://{Endpoint}/v1/{project_id}/als/action?type=querylogs

{
  "category" : "app_log",
  "searchKey" : {
    "clusterId" : "874819a2-bd6f-11e9-80be-0255ac1001b3"
  },
  "keyWord" : "",
  "startTime" : 1569463658895,
  "endTime" : 1569463958895,
  "pageSize" : 100,
  "hideSyslog" : 0
}

Query data by page.

https://{Endpoint}/v1/{project_id}/als/action

{
  "category" : "app_log",
  "searchKey" : {
    "clusterId" : "874819a2-bd6f-11e9-80be-0255ac1001b3"
  },
  "keyWord" : "",
  "startTime" : 1569463658895,
  "endTime" : 1569463958895,
  "lineNum" : "1569463911294010547",
  "type" : "next",
  "size" : 100,
  "hideSyslog" : 0
}

Example Responses

Status code: 200

The request is successful.

{
  "errorCode" : "SVCSTR.ALS.200200",
  "errorMessage" : "Query data success",
  "result" : {
    "total" : 5000,
    "data" : [ {
      "category" : "app",
      "loghash" : "496b2070d40a83c17f2625401af8a50aadc316f216771fbe38b94d31feaa30eb",
      "clusterId" : "c693fa7c-54cd-11e8-8055-0255ac101e40",
      "clusterName" : "aomdemo",
      "nameSpace" : "default",
      "podName" : "als0712-7c4875f884-q5wwp",
      "appName" : "als0712",
      "serviceID" : "",
      "containerName" : "container-0",
      "logContent" : "warn:2018/10/09 06:57:01 helloworld.go:108: the main process is running now.n",
      "pathFile" : "/var/paas/sys/log/apm/debug_erro.trace",
      "hostIP" : "192.168.0.133",
      "hostId" : "c11c7211-5a0b-4925-bef4-d078661299b0",
      "hostName" : "192.168.0.133",
      "collectTime" : "1539068233983",
      "lineNum" : "15390682339830002",
      "logContentSize" : "77"
    } ]
  }
}

Status Codes

Status Code	Description
200	OK The request is successful.
400	Bad Request Invalid request. The client should not repeat the request without modifications.
401	Unauthorized The authorization information is incorrect or invalid.
403	ForbiddenThe request is rejected. The server has received the request and understood it, but the server refuses to respond to it. The client should not repeat the request without modifications.
500	Internal Server Error The server is able to receive the request but unable to understand the request.
503	Service Unavailable The requested service is invalid. The client should not repeat the request without modifications.