找不到 jmap 命令
我试图在我的 CentOS 服务器上使用 jmap 命令，但它一直告诉我即使我安装了 JDK 也找不到该命令.
I'm trying to use the jmap command on my CentOS server but it keeps telling me that the command was not found even though I have the JDK installed.
这是命令java -version的输出:
java version "1.7.0_25"
OpenJDK Runtime Environment (rhel-2.3.10.4.el6_4-x86_64)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
我该如何解决这个问题?
How can I fix this issue?
推荐答案
你应该可以在java-1.8.0-openjdk-devel-debug中找到jmap，或 java-1.7.0-openjdk-devel-debug，或 Redhat/Centos 上的 java-1.6.0-openjdk-devel-debug 软件包.要安装它，请以 root 身份运行以下命令:
You should be able to find jmap in the java-1.8.0-openjdk-devel-debug, or java-1.7.0-openjdk-devel-debug, or java-1.6.0-openjdk-devel-debug packages on Redhat/Centos. To install it, run the following as root:
yum install java-1.8.0-openjdk-devel-debug
为了完整起见，这里是检查哪些包包含 jmap 的命令:
For completeness, here's the command to check which packages include jmap:
yum whatprovides '*/jmap'
这是一个示例输出:
1:java-1.6.0-openjdk-devel-1.6.0.37-1.13.9.4.el7_1.x86_64 : OpenJDK Development Environment
Repo : updates
Matched from:
Filename : /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.37.x86_64/bin/jmap
1:java-1.7.0-openjdk-devel-1.7.0.91-2.6.2.3.el7.x86_64 : OpenJDK Development Environment
Repo : base
Matched from:
Filename : /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91-2.6.2.3.el7.x86_64/bin/jmap
1:java-1.8.0-openjdk-devel-1.8.0.65-3.b17.el7.x86_64 : OpenJDK Development Environment
Repo : base
Matched from:
Filename : /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64/bin/jmap
1:java-1.8.0-openjdk-devel-debug-1.8.0.65-3.b17.el7.x86_64 : OpenJDK Development Environment with full debug on
Repo : base
Matched from:
Filename : /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64-debug/bin/jmap
1:java-1.8.0-openjdk-devel-debug-1.8.0.65-3.b17.el7.x86_64 : OpenJDK Development Environment with full debug on
Repo : @base
Matched from:
Filename : /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64-debug/bin/jmap
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