update codes and docs

dunwu · dunwu · commit 05ac9b36a7a6 · 2020-08-07T16:59:58.000+08:00
diff --git a/assets/JVM/Java故障排查.xmind b/assets/JVM/Java故障排查.xmind
diff --git a/codes/javacore-jvm/README.md b/codes/javacore-jvm/README.md
@@ -0,0 +1,10 @@
+# 使用说明
+
+
+
+```
+cd javacore/codes/javacore-jvm
+```
+
+
+
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/ConstantPoolOutOfMemoryDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/ConstantPoolOutOfMemoryDemo.java
@@ -11,6 +11,8 @@
  * <li>(JDK8 以前)-XX:PermSize=10m -XX:MaxPermSize=10m</li>
  * <li>(JDK8 及以后)-XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=10m</li>
  * </ul>
+ * <p>
+ * Linux Test Cli: java -verbose:gc -XX:PermSize=10m -XX:MaxPermSize=10m -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.ConstantPoolOutOfMemoryDemo
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/DirectOutOfMemoryDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/DirectOutOfMemoryDemo.java
@@ -9,7 +9,7 @@
  * <p>
  * 错误现象：java.lang.OutOfMemoryError
  * <p>
- * VM Args：-Xmx20M -XX:MaxDirectMemorySize=10M
+ * VM Args：-verbose:gc -Xmx20M -XX:MaxDirectMemorySize=10M
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/GcOverheadLimitExceededDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/GcOverheadLimitExceededDemo.java
@@ -14,6 +14,8 @@
  * <p>
  * VM Args: -Xms10M -Xmx10M
  *
+ * Linux Test Cli: java -verbose:gc -Xms10M -Xmx10M -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.GcOverheadLimitExceededDemo
+ *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
  */
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/HeapOutOfMemoryErrorDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/HeapOutOfMemoryErrorDemo.java
@@ -6,6 +6,8 @@
  * 错误现象：java.lang.OutOfMemoryError: Java heap space
  * <p>
  * VM Args：-verbose:gc -Xms10M -Xmx10M
+ * <p>
+ * Linux Test Cli: java -verbose:gc -Xms10M -Xmx10M -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.HeapOutOfMemoryErrorDemo
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/MethodAreaOutOfMemoryDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/MethodAreaOutOfMemoryDemo.java
@@ -11,6 +11,8 @@
  * <li>(JDK8 以前)-XX:PermSize=10m -XX:MaxPermSize=10m</li>
  * <li>(JDK8 及以后)-XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=10m</li>
  *
+ * Linux Test Cli: nohup java -verbose:gc -XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=10m -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.MethodAreaOutOfMemoryDemo >> output.log 2>&1 &
+ *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-26
  */
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOutOfMemoryDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOutOfMemoryDemo.java
@@ -4,6 +4,8 @@
  * 创建线程导致内存溢出（执行要慎重）
  * <p>
  * VM Args: -Xss512k
+ * <p>
+ * Linux Test Cli: nohup java -verbose:gc -Xss512k -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.StackOutOfMemoryDemo >> output.log 2>&1 &
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOverflowDemo.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOverflowDemo.java
@@ -13,8 +13,10 @@
  * <p>
  * VM 参数：
  * <ul>
- * <li>-Xss128k - 设置栈大小为 128k</li>
+ * <li>-Xss228k - 设置栈大小为 228k</li>
  * </ul>
+ * <p>
+ * Linux Test Cli: nohup java -verbose:gc -Xss228k -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.StackOverflowDemo >> output.log 2>&1 &
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOverflowDemo2.java b/codes/javacore-jvm/src/main/java/io/github/dunwu/javacore/jvm/memory/StackOverflowDemo2.java
@@ -5,8 +5,10 @@
  * <p>
  * VM 参数：
  * <ul>
- * <li>-Xss128k - 设置栈大小为 128k</li>
+ * <li>-Xss228k - 设置栈大小为 228k</li>
  * </ul>
+ * <p>
+ * Linux Test Cli: nohup java -verbose:gc -Xss228k -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.StackOverflowDemo2 >> output.log 2>&1 &
  *
  * @author <a href="mailto:forbreak@163.com">Zhang Peng</a>
  * @since 2019-06-25
diff --git a/docs/jvm/jvm-cli-tools.md b/docs/jvm/jvm-cli-tools.md
@@ -4,16 +4,16 @@
 >
 > JDK 自带了一些实用的命令行工具来监控、分析 JVM 信息，掌握它们，非常有助于 TroubleShooting。
 
-以下是较常用的 JDK 工具：
-
-| 名称     | 描述                                                                                                 |
-| -------- | ---------------------------------------------------------------------------------------------------- |
-| `jps`    | 显示指定系统内所有的 HotSpot 虚拟机进程。                                                            |
-| `jstat`  | 用于监视虚拟机运行时状态信息，它可以显示出虚拟机进程中的类装载、内存、垃圾收集、JIT 编译等运行数据。 |
-| `jmap`   | 用于生成堆转储快照（一般称为 heapdump 或 dump 文件）。                                               |
-| `jstack` | 用于生成 java 虚拟机当前时刻的线程快照（一般称为 threaddump 或 javacore 文件）。                     |
-| `jhat`   | 用来分析 jmap 生成的 dump 文件。                                                                     |
-| `jinfo`  | 用于实时查看和调整虚拟机运行参数。                                                                   |
+以下是较常用的 JDK 命令行工具：
+
+| 名称     | 描述                                                         |
+| -------- | ------------------------------------------------------------ |
+| `jps`    | JVM 进程状态工具。显示系统内的所有 JVM 进程。                |
+| `jstat`  | JVM 统计监控工具。监控虚拟机运行时状态信息，它可以显示出 JVM 进程中的类装载、内存、GC、JIT 编译等运行数据。 |
+| `jmap`   | JVM 堆内存分析工具。用于打印 JVM 进程对象直方图、类加载统计。并且可以生成堆转储快照（一般称为 heapdump 或 dump 文件）。 |
+| `jstack` | JVM 栈查看工具。用于打印 JVM 进程的线程和锁的情况。并且可以生成线程快照（一般称为 threaddump 或 javacore 文件）。 |
+| `jhat`   | 用来分析 jmap 生成的 dump 文件。                             |
+| `jinfo`  | 用于实时查看和调整虚拟机运行参数。                           |
 
 <!-- TOC depthFrom:2 depthTo:3 -->
 
diff --git a/pom.xml b/pom.xml
@@ -62,5 +62,27 @@
       <artifactId>dunwu-tool-core</artifactId>
     </dependency>
   </dependencies>
-
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-dependency-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>copy-dependencies</id>
+            <phase>package</phase>
+            <goals>
+              <goal>copy-dependencies</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>
+                ${project.build.directory}/lib
+              </outputDirectory>
+              <stripVersion>false</stripVersion>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>

-Original file line number
+Diff line change
@@ @@ -0,0 +1,10 @@ @@
 +# 使用说明
++
++
++
 +```
 +cd javacore/codes/javacore-jvm
 +```
++
++
++
Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,8 @@`
`11`	`11`	`* <li>(JDK8 以前)-XX:PermSize=10m -XX:MaxPermSize=10m</li>`
`12`	`12`	`* <li>(JDK8 及以后)-XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=10m</li>`
`13`	`13`	`* </ul>`
	`14`	`+ * <p>`
	`15`	`+ * Linux Test Cli: java -verbose:gc -XX:PermSize=10m -XX:MaxPermSize=10m -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.ConstantPoolOutOfMemoryDemo`
`14`	`16`	`*`
`15`	`17`	`* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>`
`16`	`18`	`* @since 2019-06-25`
Original file line number	Diff line number	Diff line change
`@@ -9,7 +9,7 @@`
`9`	`9`	`* <p>`
`10`	`10`	`* 错误现象：java.lang.OutOfMemoryError`
`11`	`11`	`* <p>`
`12`		`- * VM Args：-Xmx20M -XX:MaxDirectMemorySize=10M`
	`12`	`+ * VM Args：-verbose:gc -Xmx20M -XX:MaxDirectMemorySize=10M`
`13`	`13`	`*`
`14`	`14`	`* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>`
`15`	`15`	`* @since 2019-06-25`
Original file line number	Diff line number	Diff line change
`@@ -14,6 +14,8 @@`
`14`	`14`	`* <p>`
`15`	`15`	`* VM Args: -Xms10M -Xmx10M`
`16`	`16`	`*`
	`17`	`+ * Linux Test Cli: java -verbose:gc -Xms10M -Xmx10M -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.GcOverheadLimitExceededDemo`
	`18`	`+ *`
`17`	`19`	`* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>`
`18`	`20`	`* @since 2019-06-25`
`19`	`21`	`*/`
Original file line number	Diff line number	Diff line change
`@@ -6,6 +6,8 @@`
`6`	`6`	`* 错误现象：java.lang.OutOfMemoryError: Java heap space`
`7`	`7`	`* <p>`
`8`	`8`	`* VM Args：-verbose:gc -Xms10M -Xmx10M`
	`9`	`+ * <p>`
	`10`	`+ * Linux Test Cli: java -verbose:gc -Xms10M -Xmx10M -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.HeapOutOfMemoryErrorDemo`
`9`	`11`	`*`
`10`	`12`	`* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>`
`11`	`13`	`* @since 2019-06-25`
Original file line number	Diff line number	Diff line change
`@@ -4,6 +4,8 @@`
`4`	`4`	`* 创建线程导致内存溢出（执行要慎重）`
`5`	`5`	`* <p>`
`6`	`6`	`* VM Args: -Xss512k`
	`7`	`+ * <p>`
	`8`	`+ * Linux Test Cli: nohup java -verbose:gc -Xss512k -cp target/javacore-jvm-1.0.1.jar io.github.dunwu.javacore.jvm.memory.StackOutOfMemoryDemo >> output.log 2>&1 &`
`7`	`9`	`*`
`8`	`10`	`* @author <a href="mailto:forbreak@163.com">Zhang Peng</a>`
`9`	`11`	`* @since 2019-06-25`