Querying the Log Histogram
Function
This API is used to query the distribution of reported log events that contain a specified keyword over a certain period. If no keyword is specified, the distribution of all log events reported over the period is returned.
Calling Method
For details, see Calling APIs.
URI
POST /v2/{project_id}/lts/keyword-count
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
project_id |
Yes |
String |
Project ID. For details about how to obtain a project ID, see Obtaining the Project ID, Account ID, Log Group ID, and Log Stream ID. Minimum: 32 Maximum: 32 |
Request Parameters
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
X-Auth-Token |
Yes |
String |
User token obtained from IAM. For details about how to obtain a user token, see Obtaining a User Token. Minimum: 1000 Maximum: 2000 |
Content-Type |
Yes |
String |
Set this parameter to application/json;charset=UTF-8. Minimum: 30 Maximum: 30 |
Parameter |
Mandatory |
Type |
Description |
---|---|---|---|
start_time |
Yes |
String |
Start time. |
end_time |
Yes |
String |
End time. |
step_interval |
Yes |
Long |
Time step, in milliseconds (ms). Recommended formula: (end_time-start_time)/1000 x 1000/60, where /1000 x 1000 means rounding to an integer.
NOTE:
If the calculated result is less than or equal to 1000, the value 1000 is used. |
group_id |
Yes |
String |
Log group ID. Minimum: 36 Maximum: 36 |
stream_id |
Yes |
String |
Log stream ID. Minimum: 36 Maximum: 36 |
key_word |
Yes |
String |
A keyword is a word between two adjacent delimiters. |
is_iterative |
No |
Boolean |
Whether the log query is iterative. The default value is false, indicating that the log query is not iterative. |
Response Parameters
Status code: 200
Parameter |
Type |
Description |
---|---|---|
count |
Long |
Number of logs. |
histogram |
String |
Histogram result. |
isQueryComplete |
Boolean |
Whether the query is complete. |
Status code: 400
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code. Minimum: 8 Maximum: 8 |
error_msg |
String |
Error message. |
Status code: 500
Parameter |
Type |
Description |
---|---|---|
error_code |
String |
Error code. Minimum: 8 Maximum: 8 |
error_msg |
String |
Error message. |
Example Requests
Querying the log histogram
POST https://{endpoint}/v2/{project_id}/lts/keyword-count { "group_id" : "00330565-5baf-4e0d-bd16-ba0c6b951d9a", "stream_id" : "715cda3b-e17f-492a-a6ca-98a1ba16ad8c", "end_time" : 1637820813605, "start_time" : 1637817213605, "key_word" : "test", "step_interval" : 6000 }
Example Responses
Status code: 200
The query is successful.
{ "count" : 1, "histogram" : [ { "num" : 1, "startTime" : 1637821594579, "endTime" : 1637821595000 }, { "num" : 0, "startTime" : 1637821654000, "endTime" : 1637821654579 } ] }
Status code: 400
Invalid request. Modify the request based on the description in error_msg before a retry.
{ "error_code" : "LTS.0601", "error_msg" : "must be less than or equal to 86400000" }
SDK Sample Code
The SDK sample code is as follows.
Querying the log histogram
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.lts.v2.region.LtsRegion; import com.huaweicloud.sdk.lts.v2.*; import com.huaweicloud.sdk.lts.v2.model.*; public class ListLogHistogramSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); String projectId = "{project_id}"; ICredential auth = new BasicCredentials() .withProjectId(projectId) .withAk(ak) .withSk(sk); LtsClient client = LtsClient.newBuilder() .withCredential(auth) .withRegion(LtsRegion.valueOf("<YOUR REGION>")) .build(); ListLogHistogramRequest request = new ListLogHistogramRequest(); QueryLogKeyWordCountRequestBody body = new QueryLogKeyWordCountRequestBody(); body.withKeyWord("test"); body.withStreamId("715cda3b-e17f-492a-a6ca-98a1ba16ad8c"); body.withGroupId("00330565-5baf-4e0d-bd16-ba0c6b951d9a"); body.withStepInterval(6000L); body.withEndTime("1637820813605"); body.withStartTime("1637817213605"); request.withBody(body); try { ListLogHistogramResponse response = client.listLogHistogram(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
Querying the log histogram
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# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdklts.v2.region.lts_region import LtsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdklts.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = LtsClient.new_builder() \ .with_credentials(credentials) \ .with_region(LtsRegion.value_of("<YOUR REGION>")) \ .build() try: request = ListLogHistogramRequest() request.body = QueryLogKeyWordCountRequestBody( key_word="test", stream_id="715cda3b-e17f-492a-a6ca-98a1ba16ad8c", group_id="00330565-5baf-4e0d-bd16-ba0c6b951d9a", step_interval=6000, end_time="1637820813605", start_time="1637817213605" ) response = client.list_log_histogram(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
Querying the log histogram
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" lts "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/lts/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := lts.NewLtsClient( lts.LtsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ListLogHistogramRequest{} request.Body = &model.QueryLogKeyWordCountRequestBody{ KeyWord: "test", StreamId: "715cda3b-e17f-492a-a6ca-98a1ba16ad8c", GroupId: "00330565-5baf-4e0d-bd16-ba0c6b951d9a", StepInterval: int64(6000), EndTime: "1637820813605", StartTime: "1637817213605", } response, err := client.ListLogHistogram(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
Status Code |
Description |
---|---|
200 |
The query is successful. |
400 |
Invalid request. Modify the request based on the description in error_msg before a retry. |
500 |
InternalServerError. The server has received the request but encountered an internal error. |
Error Codes
See Error Codes.
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