Query context logs, 查询上下文日志

Prerequisites

• Simple Log Service is activated. For more information, see Activate Simple Log Service.

• The Simple Log Service SDK for Python is initialized. For more information, see Initialize the SLS Python SDK.

Parameters

def get_context_logs(self, project, logstore, pack_id, pack_meta, back_lines, forward_lines):

Sample code

from aliyun.log import LogClient
import os

# Get the AccessKey ID and AccessKey Secret from environment variables.
access_key_id = os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_ID', '')
access_key_secret = os.environ.get('ALIBABA_CLOUD_ACCESS_KEY_SECRET', '')
# The endpoint of Simple Log Service.
endpoint = "cn-hangzhou.log.aliyuncs.com"

# Create a LogClient instance.
client = LogClient(endpoint, access_key_id, access_key_secret)

project = "proj-test-1"
logstore = "logstore-1"
pack_id = "85C89****52DC6-808"
pack_meta = "2|MTY1NTcw****MTY0MDk1Mg==|3|0"
back_lines = 1
forward_lines = 1

def main():
    # Retrieve log entries before and after a specific log entry.
    res = client.get_context_logs(project, logstore, pack_id, pack_meta, back_lines, forward_lines)
    res.log_print()


if __name__ == '__main__':
    main()    

Sample response

GetContextLogsResponse:
headers: {'Server': 'AliyunSLS', 'Content-Type': 'application/json', 'Content-Length': '1855', 'Connection': 'keep-alive', 'Access-Control-Allow-Origin': '*', 'Date': 'Fri, 15 Nov 2024 05:25:34 GMT', 'x-log-time': '1731648334', 'x-log-requestid': '6736DB4E4DFECE685754****'}
total_lines: 2
back_lines: 1
forward_lines: 0
progress: Complete

QueriedLog class:

QueriedLog:
time: 1731647496
source: 
contents: {'__index_number__': '-1', '@timestamp': '2024-11-15T13:11:36+08:00', 'server_addr': '172.x.x.243', 'remote_addr': '192.x.x.1', 'scheme': 'http', 'method': 'GET', 'path': '/druid/css/bootstrap.min.css', 'request_length': '415', 'uri': '/druid/css/bootstrap.min.css', 'request_time': '0.036000', 'body_bytes_sent': '15532', 'bytes_sent': '15768', 'status': '200', 'upstream_time': '0.036', 'upstream_host': '127.0.0.1:8080', 'upstream_status': '200', 'host': 'www.example.com', 'http_referer': 'http://www.example.com/login.html', 'http_user_agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36', 'request_body': '', '__pack_meta__': '1|MTczMTQwMj****zNTAwMjAyMg==|7|6', '__tag__:__hostname__': 'my-host', '__tag__:__path__': '/data/logs/access.log', '__tag__:__pack_id__': '****06F906394977-3', '__tag__:__receive_time__': '1731647498'}


QueriedLog:
time: 1731647498
source: 
contents: {'__index_number__': '0', '@timestamp': '2024-11-15T13:11:38+08:00', 'server_addr': '172.x.x.243', 'remote_addr': '192.x.x.1', 'scheme': 'http', 'method': 'GET', 'path': '/monitor/server', 'request_length': '538', 'uri': '/monitor/server', 'request_time': '1.584000', 'body_bytes_sent': '2455', 'bytes_sent': '2687', 'status': '200', 'upstream_time': '1.585', 'upstream_host': '127.0.0.1:8080', 'upstream_status': '200', 'host': 'www.example.com', 'http_referer': 'http://www.example.com/index', 'http_user_agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36', 'request_body': '', '__pack_meta__': '1|MTczMTQwMj****zNTAwMjAyMw==|1|0', '__tag__:__hostname__': 'my-host', '__tag__:__path__': '/data/logs/access.log', '__tag__:__pack_id__': '****06F906394977-4', '__tag__:__receive_time__': '1731647501'}



Process finished with exit code 0

References

• The following API operations are also available for querying logs:

  • Query a cursor by time

  • Query server time by cursor

  • Pull logs

  • Query logs in a logstore

  • Query log data in a logstore

  • Query context logs

  • Query log distribution