jmx

Zookeeper-Hadoop HA (高可用) 安装配置及下载地址

由 喜你入骨 提交于 2020-01-14 04:39:41
使用安装包版本： hadoop-2.6.0.tar.gz 下载地址 https://www.apache.org/dyn/closer.cgi/hadoop/common jdk-8u221-linux-x64.tar.gz 下载地址 https://www.java.com/en/download/manual.jsp zookeeper-3.4.5.tar.gz 下载地址 https://www.apache.org/dyn/closer.cgi/zookeeper/ 主机IP映射 [root@master conf] # vi /etc/hosts 127 . 0 . 0 . 1 localhost localhost . localdomain localhost4 localhost4 . localdomain4 ::1 localhost localhost . localdomain localhost6 localhost6 . localdomain6 192 . 168 . 176 . 41 master 192 . 168 . 176 . 42 slave1 192 . 168 . 176 . 43 slave2 环境变量~/.bash_profile [root@master hadoop] # vi ~/.bash_profile JAVA_HOME=

Questions on JMX Example

由 痞子三分冷 提交于 2020-01-13 19:32:14
问题 I have written sample JMX MBean "PoolMBean" based on my uderstanding of MBeans. I have written this to manage and monitor the connection pool. My question here is, is this the way Mbeans are written? Are there any issues in this Mbean code not related to connection pool? 1) What kind of objects can an Mbean method return? package pool; import java.util.Date; public class Connection { public Date createdAt; protected int usedCount; protected boolean isAvailable = true; public Connection

Java daemon deployment

由 寵の児 提交于 2020-01-13 07:03:33
问题 I have a console Java application, which runs all the time on a remote server (nohup java -jar myapp.jar &). Frequently (every other day) I need to replace the JAR file by a newer one (whenever I fix a defect). At the moment I do this by connecting to the server using ssh (WinSCP). How can I create a mechanism, using which I could upgrade the application via the http protocol? Can I use JMX for that? That mechanism should do following things: a) Stop the currently running application. b)

How to retrieve Weblogic's Deployment test points through Weblogic Java API

由 限于喜欢 提交于 2020-01-12 13:57:24
问题 I'm working on a Weblogic health monitoring code base, which is based on JMX. I am trying to get the list of all deployment test points (the http addresses, as shown in the following snapshot), and see if that web address is reachable or not. Is there a way to access the list of these test points in Weblogic's Java API? They are under [server_name] --> deployment (left menu) --> [app name] --> Testing pane, under " Deployment Tests " table. 回答1: There is no direct method call to generate test

How to connect to a local JMX server by knowing the process id?

由 心已入冬 提交于 2020-01-12 10:53:09
问题 The motivation behind this is to manage local java services, using JMX, without something more heavyweight like the java service Wrapper. Each service is started with -Dcom.sun.management.jmxremote which means that "The JVM is configured to work as a local (same-machine-only) JMX server." (see here for a good explaination). I tried the Attach API, but decided against it since it is not bundled with Java SE6 and and integrating it with maven was not possible. 回答1: @Tim Büthe If

Not able to Connect a Remote Host to the VisualVM

由 风格不统一 提交于 2020-01-11 15:38:41
问题 I am new to Java and I'm facing a problem in connecting a Remote Host to the JVisualVM . I've searched the Internet and followed all the steps mentioned there but still am not able to resolve the issue. The steps I followed are: I started the jstatd on the remote server by first creating a jstatd.all.policy file in the $JAVA_HOME/bin . The file contained: grant codebase "file:${java.home}/../lib/tools.jar" { permission java.security.AllPermission;}; I started the Jstatd as jstatd -J-Djava

Not able to Connect a Remote Host to the VisualVM

由 萝らか妹 提交于 2020-01-11 15:38:12
问题 I am new to Java and I'm facing a problem in connecting a Remote Host to the JVisualVM . I've searched the Internet and followed all the steps mentioned there but still am not able to resolve the issue. The steps I followed are: I started the jstatd on the remote server by first creating a jstatd.all.policy file in the $JAVA_HOME/bin . The file contained: grant codebase "file:${java.home}/../lib/tools.jar" { permission java.security.AllPermission;}; I started the Jstatd as jstatd -J-Djava

Kafka Consumer - JMX Properties

由 老子叫甜甜 提交于 2020-01-11 04:13:06
问题 I enabled JMX on the kafka brokers on port 8081. When I view the MBean properties in jConsole, I only see the following for kafka.consumer - kafka.consumer:type=FetchRequestAndResponseMetrics,name=FetchRequestRateAndTimeMs,clientId=ReplicaFetcherThread-2-413 kafka.consumer:type=FetchRequestAndResponseMetrics,name=FetchResponseSize,clientId=ReplicaFetcherThread-0-413 But none of the other ones that are identified in here under Kafka Consumer Metrics are emitted by JMX. Kafka Version # 0.8.2.1

How to set JMX remote port system environment parameters through java code for remote monitoring?

由 非 Y 不嫁゛ 提交于 2020-01-10 08:26:51
问题 I have a program which requires dynamically (i.e. at run time) opening an available socket and start a JMX agent on it. This JMX parameters are being set inside the Java code and not through command line. This works fine. Thereafter it is needed to monitor( i.e issue JMX commands etc) through Java Visual VM remotely The RMI server agent in the program is on the lines of out of box management described at: http://download.oracle.com/javase/6/docs/technotes/guides/management/agent.html The

JMX enabled Java application appears to open a random high order port when JMX client connects

由 浪子不回头ぞ 提交于 2020-01-10 03:47:05
问题 JMX enabled Java application appears to open a random high order port when JMX client connects I have successfully configured a helloworld JMX enabled program, and I can connect to it using jconsole JMX client from a remote location. When I attempt to turn on iptables I noticed that a random high order port is established when a client logs in. Eventually I would like to monitor Java applications in firewall segregated network segments. Can we control the range the random port opens in? I'll
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