【Java命令三】jps
jps很简单，用于显示当前运行的Java进程，也可以连接到远程服务器去查看$ jps -help
usage: jps [-help]
jps [-q] [-mlvV] [<hostid>]
Definitions:
<hostid>: <hostname>[:<port>]
用法举例：
1. jps
$ jps
3489 Jps
1819 Master
1988 Worker
2. jps -v
忽略了jps本身这个Java进程
$ jps -v
3524 Jps -Dapplication.home=/home/hadoop/software/jdk1.7.0_67 -Xms8m
1819 Master -XX:MaxPermSize=128m -Dspark.akka.logLifecycleEvents=true -Xms512m -Xmx512m
1988 Worker -XX:MaxPermSize=128m -Dspark.akka.logLifecycleEvents=true -Xms512m -Xmx512m
3. jps -m
$ jps -m
1819 Master --ip hadoop.master --port 7077 --webui-port 8080
1988 Worker spark://hadoop.master:7077
3549 Jps -m
4. jps -l
可以显示详细的类名，而jps默认显示的是simple class name
$ jps -l
1819 org.apache.spark.deploy.master.Master
1988 org.apache.spark.deploy.worker.Worker
3563 sun.tools.jps.Jps
5. jps -lmv
$ jps -lmv
3575 sun.tools.jps.Jps -lmv -Dapplication.home=/home/hadoop/software/jdk1.7.0_67 -Xms8m
1819 org.apache.spark.deploy.master.Master --ip hadoop.master --port 7077 --webui-port 8080 -XX:MaxPermSize=128m -Dspark.akka.logLifecycleEvents=true -Xms512m -Xmx512m
1988 org.apache.spark.deploy.worker.Worker spark://hadoop.master:7077 -XX:MaxPermSize=128m -Dspark.akka.logLifecycleEvents=true -Xms512m -Xmx512m
页:
[1]