2.8 KiB
Log Collecting And Analysis
Collecting
There are various ways to collect logs from application.
Log files collector
You can use Filebeat, Fluentd
and FluentBit to collect logs, and then transport the logs to SkyWalking OAP through Kafka or
HTTP protocol, with the formats Kafka JSON
or HTTP JSON array. When using Kafka protocol, you need to
open kafka-fetcher and enable configs enableNativeJsonLog.
Collector config examples:
Java agent's toolkits
Java agent provides toolkit for log4j, log4j2, logback to report logs through gRPC with automatic injected trace context.
SkyWalking Satellite sidecar is a recommended proxy/side to
forward logs including to use Kafka MQ to transport logs. When use this, need to open kafka-fetcher
and enable configs enableNativeProtoLog.
Java agent provides toolkit for log4j, log4j2, logback to report logs through files with automatic injected trace context.
Log framework config examples:
Log Analyzer
Log analyzer of OAP server supports native log data. OAP could use Log Analysis Language to structurize log content through parse, extract, and save logs. Also the analyzer leverages Meter Analysis Language Engine for further metrics calculation.
log-analyzer:
selector: ${SW_LOG_ANALYZER:default}
default:
lalFiles: ${SW_LOG_LAL_FILES:default}
malFiles: ${SW_LOG_MAL_FILES:""}
Read Log Analysis Language documentation to learn log structurize and metrics analysis.