perf($JVM): enable JVM GC log

[skip ci]
johnnymillergh · Sep 22, 2021 · 0b8147b · 0b8147b
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commit 0b8147b
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Showing 3 changed files with 20 additions and 7 deletions.
diff --git a/.gitignore b/.gitignore
@@ -7,6 +7,8 @@ logs/
 .DS_Store
 HELP.md
 nohup.out
+*.log
+*.gz
 
 ### STS ###
 .apt_generated

diff --git a/README.md b/README.md
@@ -55,20 +55,22 @@ Here is the highlights of **Muscle and Fitness Server**:
 
 12. [Knife4j](https://doc.xiaominfo.com/) API visualization. Enhanced Swagger API documentation.
 
-13. Log compression. [ELK](https://www.elastic.co/what-is/elk-stack) log aggregation.
+13. [Async log output](https://examples.javacodegeeks.com/enterprise-java/logback/logback-ayncappender-example/). Log file compressed by standard GNU zip ([gzip](https://en.wikipedia.org/wiki/Gzip)) compression algorithm. [ELK](https://www.elastic.co/what-is/elk-stack) log aggregation.
 
-14. AOP based request log, configurable for turning on or off.
+14. JVM log configuration for JVM garbage collection.
 
-15. Customized method argument validation.
+15. AOP based request log, configurable for turning on or off.
+
+16. Customized method argument validation.
 
     - [Date time range validator](https://github.com/johnnymillergh/muscle-and-fitness-server/blob/master/spring-cloud-starter/src/main/java/com/jmsoftware/maf/springcloudstarter/validation/validator/DateTimeRangeValidator.java)
     - [Enum value validator](https://github.com/johnnymillergh/muscle-and-fitness-server/blob/master/spring-cloud-starter/src/main/java/com/jmsoftware/maf/springcloudstarter/validation/validator/EnumValueValidator.java)
 
-16. Docker container log persistence. Size and time based rolling policy.
+17. Docker container log persistence. Size and time based rolling policy.
 
-17. [Startup and deployment statistics](https://github.com/johnnymillergh/muscle-and-fitness-server/blob/master/spring-cloud-starter/src/main/java/com/jmsoftware/maf/springcloudstarter/helper/SpringBootStartupHelper.java).
+18. [Startup and deployment statistics](https://github.com/johnnymillergh/muscle-and-fitness-server/blob/master/spring-cloud-starter/src/main/java/com/jmsoftware/maf/springcloudstarter/helper/SpringBootStartupHelper.java).
 
-18. Customized startup banner.
+19. Customized startup banner.
 
 ## Usage
 

diff --git a/docker/.env b/docker/.env
@@ -66,7 +66,16 @@ MUSCLE_MIS_CONTAINER_NAME=maf-muscle-mis
 ##################################################
 # JIB contain's Java tool options                #
 ##################################################
-JAVA_TOOL_OPTIONS="-Xms128m -Xmx128m -Dspring.profiles.active=${SPRING_ENVIRONMENT} -Dspring.cloud.consul.host=${CONSUL_REGISTRY_CONTAINER_NAME}"
+# JVM GC log reference https://programmer.group/analysis-and-use-of-the-log-related-parameters-of-openjdk-11-jvm.html
+JAVA_TOOL_OPTIONS="
+-Xms128m
+-Xmx128m
+-Dspring.profiles.active=${SPRING_ENVIRONMENT}
+-Dspring.cloud.consul.host=${CONSUL_REGISTRY_CONTAINER_NAME}
+-Xlog:gc*=info:stdout:time,level,tags
+-Xlog:gc*=info:file=gc.%t.log:time,level,tags:filecount=10,filesize=20M
+-XX:+PrintCommandLineFlags
+"
 
 ##################################################
 # Accounts, Passwords & Common Constants         #