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- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
-
User Guide
- Granting LTS Permissions to IAM Users
- Log Management
-
Log Ingestion
- Overview
-
Using ICAgent to Collect Logs
- Overview
- Installing ICAgent (Intra-Region Hosts)
- Installing ICAgent (Extra-Region Hosts)
- Managing ICAgent
- Managing Host Groups
- Ingesting BMS Text Logs to LTS
- Ingesting CCE Application Logs to LTS
- Ingesting ECS Text Logs to LTS
- Ingesting ServiceStage Containerized Application Logs to LTS
- Ingesting ServiceStage Cloud Host Logs to LTS
- Ingesting Self-Built Kubernetes Application Logs to LTS
- Setting ICAgent Structuring Parsing Rules
-
Ingesting Cloud Service Logs to LTS
- Overview
- Ingesting AOM Logs to LTS
- Ingesting APIG Logs to LTS
- Ingesting CBH Logs to LTS
- Ingesting CFW Logs to LTS
- Ingesting CTS Logs to LTS
- Ingesting DDS Logs to LTS
- Ingesting DMS for Kafka Logs to LTS
- Ingesting DRS Logs to LTS
- Ingesting GaussDB(DWS) Logs to LTS
- Ingesting ELB Logs to LTS
- Ingesting Enterprise Router Logs to LTS
- Ingesting FunctionGraph Logs to LTS
- Ingesting GaussDB Logs to LTS
- Ingesting GES Logs to LTS
- Ingesting TaurusDB Logs to LTS
- Ingesting GeminiDB Logs to LTS
- Ingesting GeminiDB Mongo Logs to LTS
- Ingesting GeminiDB Cassandra Logs to LTS
- Ingesting IoTDA Logs to LTS
- Ingesting ModelArts Logs to LTS
- Ingesting MRS Logs to LTS
- Ingesting RDS for MySQL Logs to LTS
- Ingesting RDS for PostgreSQL Logs to LTS
- Ingesting RDS for SQL Server Logs to LTS
- Ingesting ROMA Connect Logs to LTS
- Ingesting SMN Logs to LTS
- Ingesting SecMaster Logs to LTS
- Ingesting OBS Files to LTS (Beta)
- Ingesting VPC Logs to LTS
- Ingesting WAF Logs to LTS
- Using APIs to Ingest Logs to LTS
- Ingesting Logs to LTS Across IAM Accounts
- Using Kafka to Report Logs to LTS
- Using Flume to Report Logs to LTS
- Log Search and Analysis
-
Log Visualization
- Overview
- Visualizing Logs in Statistical Charts
-
Visualizing Logs in Dashboards
- Creating a Dashboard
- Adding a Dashboard Filter
-
Dashboard Templates
- APIG Dashboard Templates
- CCE Dashboard Templates
- CDN Dashboard Templates
- CFW Dashboard Templates
- CSE Dashboard Templates
- DCS Dashboard Template
- DDS Dashboard Template
- DMS Dashboard Template
- DSL Dashboard Template
- ER Dashboard Template
- METRIC Dashboard Template
- Nginx Dashboard Templates
- VPC Dashboard Template
- WAF Dashboard Templates
- Log Alarms
- Log Transfer
- Log Processing
- Configuration Center
- Querying Real-Time LTS Traces
-
Best Practices
- Overview
-
Log Ingestion
- Collecting Logs from Third-Party Cloud Vendors, Internet Data Centers, and Other Huawei Cloud Regions to LTS
- Collecting Kubernetes Logs from Third-Party Clouds, IDCs, and Other Huawei Cloud Regions to LTS
- Collecting Syslog Aggregation Server Logs to LTS
- Importing Logs of Self-built ELK to LTS
- Using Flume to Report Logs to LTS
- Collecting Zabbix Data Through ECS Log Ingestion
- Collecting Logs from Multiple Channels to LTS
- Log Search and Analysis
- Log Transfer
- Billing
- Developer Guide
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- API Calling Examples
- Examples
-
APIs
- Host Group Management
- Log Group Management
- Log Stream Management
- Log Management
- Log Ingestion
- Log Transfer
- Log Collection Beyond Free Quota
- Cloud Log Structuring
- Container Log Ingestion from AOM to LTS
- Alarm Topics
- Message Template Management
- SQL Alarm Rules
- Keyword Alarm Rules
- Alarm List
- Tag Management
- Dashboard Management
- Log Charts
- Quick Search
- Multi-Account Log Aggregation
- Permissions Policies and Supported Actions
- Appendix
- SDK Reference
-
FAQs
- Overview
- Consultation
- Log Management
-
Host Management
- What Do I Do If ICAgent Installation Fails in Windows and the Message "SERVICE STOP" Is Displayed?
- What Do I Do If ICAgent Upgrade Fails on the LTS Console?
- What Do I Do If I Could Not Query New Logs on LTS?
- What Do I Do If ICAgent Restarts Repeatedly After Being Installed?
- What Do I Do If ICAgent Is Displayed as Offline on the LTS Console After Installation?
- What Do I Do If I Do Not See a Host with ICAgent Installed on the LTS Console?
- How Do I Create a VPC Endpoint on the VPCEP Console?
- How Do I Obtain an AK/SK Pair?
- How Do I Install ICAgent by Creating an Agency?
-
Log Ingestion
- What Do I Do If LTS Cannot Collect Logs After I Configure Host Log Ingestion?
- Will LTS Stop Collecting Logs After the Free Quota Is Used Up If I Disable "Continue to Collect Logs When the Free Quota Is Exceeded" in AOM?
- What Do I Do If the CPU Usage Is High When ICAgent Is Collecting Logs?
- What Kinds of Logs and Files Does LTS Collect?
- How Do I Disable the Function of Collecting CCE Standard Output Logs to AOM on the LTS Console?
- What Log Rotation Scheme Should I Use for ICAgent to Collect Logs?
- Does LTS Use the Log4j Plug-in to Report Logs?
- How Long Does It Take to Generate Logs After Configuring Log Ingestion?
- What Do I Do If LTS Cannot Collect Logs After I Configure Log Ingestion with ICAgent?
- Log Search and Analysis
-
Log Transfer
- Does LTS Delete Logs That Have Been Transferred to OBS Buckets?
- What Are the Common Causes of LTS Log Transfer Abnormalities?
- How Do I Transfer CTS Logs to an OBS Bucket?
- What Do I Do If I Cannot View Historical Data in an OBS Bucket After Transferring Data from LTS to OBS?
- What Do I Do If I Cannot Find a New Partition in a DLI Table After Logs Are Transferred to DLI?
-
More Documents
- User Guide (ME-Abu Dhabi Region)
- API Reference (ME-Abu Dhabi Region)
- User Guide(Paris Regions)
- API Reference(Paris Regions)
- User Guide (Kuala Lumpur Region)
- API Reference (Kuala Lumpur Region)
- User Guide (Ankara Region)
-
API Reference (Ankara Region)
- Before You Start
- Calling APIs
- API Calling Examples
- APIs
- Permissions and Supported Actions
- Appendix
- Change History
- Videos
- General Reference
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Phrase Search
Phrase search is used to precisely match the target phrase. For example, the search statement abc def matches all logs that contain both abc and def regardless of the sequence. For details about the differences between phrase search and keyword search, see Table 1.
- Phrase search: It is implemented based on the keyword search syntax. Phrase search can distinguish the sequence of keywords and is used to accurately match target phrases, making the search result more accurate. Phrase search is applicable to English phrases and Chinese phrases, but cannot be used together with fuzzy search.
- Keyword search: Keyword search is implemented based on word segmentation. Delimiters are used to split the search content into multiple keywords for log matching. Keyword search does not distinguish the sequence of keywords. Therefore, as long as a keyword can be matched in a log based on the AND or NOT logic, the log can be found.
Table 1 Differences between two search modes Search Mode
Phrase Search
Keyword Search
Differences
Distinguishes the sequence of keywords and is used to accurately match target phrases, making the search result more accurate.
Does not distinguish the sequence of keywords. The keyword is matched based on the search logic.
Examples
Assume that your log stream contains the following two raw logs:
- Raw log 1: this service is lts
- Raw log 2: lts is service
If you search for the phrase #"is lts", one log is matched.
If you search for the keyword is lts, two logs are matched.
If you search for the phrase #"lts is", one log is matched.
If you search for the keyword lts is, two logs are matched.
Search Syntax
Search Mode |
Description |
---|---|
Full-text search |
content is a built-in field corresponding to the original log text. #"abc def" is equivalent to content:#"abc def" and matches the original log content by default. |
Field Search |
key:#"abc def"
|
Restrictions
- Fuzzy search cannot be used together with phrase search.
The asterisk (*) and question mark (?) in phrase search are regarded as common characters. Therefore, phrase search does not support fuzzy search and can be used to search for the asterisk (*) and question mark (?) in logs.
- Phrase search does not support search by delimiter.
For example, in the search statement #"var/log", / is a delimiter. The search statement is equivalent to #"var log", and is used to search for logs containing the target phrase var log. Similarly, search statements such as #"var:log" and #"var;log" are used to search for logs that contain the target phrase var log.
- Phrase search is recommended for search in Chinese.
By default, unary word segmentation is used for Chinese characters. Each Chinese character is segmented separately. During the search, logs that contain each Chinese character in the search statement are matched, which is similar to fuzzy search. When more accurate results are required, phrase search is recommended.
Example
Search Requirement |
Search Statement |
---|---|
Logs in which the value of User-Agent contains the phrase Mon, 17 Apr 2023. |
User-Agent:#"Mon, 17 Apr 2023" |
Logs in which the value of User-Agent contains the phrase Mozilla/5.0. |
User-Agent:#"Mozilla/5.0" |
Logs in which the value of week contains the phrase Monday. |
week:#"Monday" |
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