tomcat memory usage monitoring

Reprint please be sure to indicate the source: Jiq Technical Blog-JiyichinIntroductionThis article focuses on some common virtual machine memory monitoring means, as well as the JVM runtime data area each part of the memory overflow occurrence and corresponding solution, overall, is a general summary, involving relatively not very deep, the purpose is to let ones

DescriptionThe work consists of two parts of the monitoring side (123) and the monitored end (iv)One, add script in Nrpe.cfgAdd Command index in NRPE.CFGCOMMAND[CHECK_USED_MEM]=/USR/LOCAL/NAGIOS/LIBEXEC/CHECK_USED_MEM.SH 80 90Description: Actual memory usage exceeds 80% warning; more than 90% critical warningsSecond, add the specific scriptReference Script check_

/home/tomcat/tomcat8_1/bin/catalina.sh +97 Insert the following code Java_opts= "-DJAVA.AWT.HEADLESS=TRUE?-DFILE.ENCODING=UTF-8?-SERVER?-XMS800M?-XMX800M?-XX:NEWSIZE=400M?-XX: maxnewsize=400m?-xx:permsize=400m?-xx:maxpermsize=400m " Server: Be sure to act as the first parameter in multiple CPU good performance when -xms : initial heap Memory Heap size, minimum

(OutOfMemoryError: PermGen space) occurs );-When the memory configured in-Xmx +-XX: MaxPermSize exceeds the physical memory available in the system, JVM startup fails;JVM memory Exception error Thanks for reference: http://blog.csdn.net/thunder0709/article/details/16855195 OutOfMemoryError: Java heap space Memory ov

("Http_bytessent","Lb=bytes Sent:","Rb= MB","Ord=1",last);A monitor transaction that defines tomcat memory usage;Lr_start_transaction ("status");Web_set_user ("admin", "Pass", "localhost:8989");Web_url ("Status","Url=http://localhost:8989/manager/status","Resource=0","Reccontenttype=text/html","Referer=","Snapshot=t1.inf","Mode=html",last);Lr_end_transaction ("s

four options in total, as shown below: Click the monitoring item to connect to the system. The ERROR message "RRDTool Says: ERROR: invalid y-grid format" is displayed, Solution: Connect to * Edit Graph Template --> Tomcat-Connection Rate --> Unit Grid Value (-- unit/-- y-grid) in the upper-right corner. The default Value is 1, remove and change it to 0. Similarly, you can leave the 1048576 value blank

Solve the memory overflow problem ---- Tomcat parameter settings, ---- tomcat parameter settings The default parameters are not suitable for the production environment, so you need to modify some parameters. 1. Modify the memory parameters at startup and specify the JVM Time Zone (eight hours earlier than windows serve

JProfiler monitoring TomcatIntroductionJProfiler is a full-featured Java profiling tool (profiler) dedicated to analyzing J2SE and J2EE applications.JProfiler is a commercial-authorized Java profiling tool developed for Java EE and Java SE applications by J Technology Co., Ltd. It allows two memory profiles to evaluate memory

No matter how careful it is, it is impossible to avoid bad code altogether, and tools are needed to help us check if there is a memory leak in the code. The DDMS in Android tools comes with a very good memory monitoring tool heap (here I use the Eclipse ADT Plugin, and in the case of a real machine, like in the emulator). The steps to use the heap to monitor the

During the past two days, colleagues on the site discovered that the system's tomcat would be suspended due to memory overflow. Colleagues at the scene could not find the problem at the moment. The last trick was to write a script to monitor it. 1. Environment Operating System: centos 4.8 JDK version: j2sdk1.4.2 Tomcat version:

In the%jboss_home%/bin/run.sh file java_opts= "$JAVA _opts-dprogram.name= $PROGNAME" Modified to: java_opts= "$JAVA _opts-dprogram.name= $PROGNAME-dcom.sun.management.jmxremote.port=9999- Dcom.sun.management.jmxremote.authenticate=false-dcom.sun.management.jmxremote.ssl=false " #-djava.rmi.server.hostname=192.168.2.2 #this must is added for TOMACAT6 For Tomcat ... find #Execut the requested Command in catalina.sh file. Remote

Lambdaprobe, designed specifically for Tomcat monitoring, explains its usage here: 1 Download: Http://www.lambdaprobe.org/downloads/1.7/probe.1.7b.zip 2 decompression, put the Probe.war under the WebApps of Tomcat 3 Set the user as follows, in Tomcat_user.xml Vi/usr/local/tomcat