tomcat memory usage monitoring

memery_used=$ (Free | awk ' nr==2 ' | awk ' {print $} ') memery_all=$ (Free | awk ' nr==2 ' | awk ' {print $} ') Memery_percent=$ (echo "scale=4; $memery _used/$memery _all" | BC) percent_part1=$ (echo $memery _percent | cut-c 2-3) percent_part2=$ (echo $memery _percent | cut-c 4-5) echo "#Memery utilization#" echo "System Memery is already use: $percent _part1. $percent _part2%" swap_used=$ (Free | awk ' nr==4 ' | awk ' {print $} ') swap_all=$ (Free | awk ' nr==4 ' | awk ' {print $} '

: $CPU _id%"FiThird, monitoring system memory#!/bin/bash#########################################################################This scripts is checking the free_mem,vision 0.1#Author: Hejunyi#E-mail:158****[email protected]#########################################################################抓取物理内存free值echo mem-free: ' Free-m | grep Mem | awk ' {print $4} ' M#抓取缓冲区的free值echo buffers/cache-free: ' Free-

How to view the JVM configuration and generational memory usage of a running spark process is a common monitoring tool for online running jobs:1, through the PS command query PIDPs-ef | grep 5661You can position the PID according to the special characters in the command2. Query the JVM parameter settings of the process using the Jinfo commandJinfo 105007Detailed

that the corresponding eclipse version in the readme/readme_eclipse.html file under the MyEclipse installation directory is eclipse-4.3.0, for example: Integrate jprofiler into the Myeclispe plug-in: 1. Session-> IDE Intergrations-> Eclipse 4.3-> Intergrate-> select MyEclipse installation directory-> choose-> OK 2. run tomcat first, click MyEclipse-> windows-> Customize Perspective, and then click run-> Attache jProfiler to run JVM to run the plug

connection monitoring is disconnected and transactions are cleared (Exec,discard,unwatch is no exception).Iv. persistence mechanismRedis is an in-memory database that supports persistence, and Redis needs to frequently synchronize the in-memory data to disk to ensure persistence.Redis supports two persistence modes:1, snapshotting (snapshot), the data stored in

/p/8445645b3aff5. Increase the results after the Tomcat thread poolOr not too much, is a little faster than before the feeling.6, the back with colleagues in the analysis of the time, colleagues said that you have to close the tab page and try again, was inspired.On the first request, the browser's process (because the Chrome browser is a process per tab page) memory consumption is 600M;The second request,

Advanced applications of Redis-transaction processing, persistence, message publishing and subscription, virtual memory usage, and redis Transaction Processing Iii. Transaction Processing Redis transaction processing is relatively simple. You can only ensure that the commands in the transaction initiated by the client can be executed continuously without inserting other client commands. When a client issues

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application mail alert, server to install SendMail service and start1. free memory 100MB, send email alerts, email messages, real-time monitoring #!/bin/bash# less than 100MB of usable memory, e-mail SMS alarm mem_free= ' free-m | awk '/cache:/ {print $4} 'if [$mem _free-lt] Thenecho " memory alarm " | Mail-s "

Java command simple view JVM memory usage1. JPS Virtual machine process Status ToolSyntax jsp [option] [HostID]OptionsRole-QShow Only Lvmid-MPass in Main method parameter when output virtual machine is enabled-LOutput main class full Name-VOutput JVM ParametersAttention:If the JPS command cannot output vmid data (jdk1.6.0.23/24 bug) in a Linux environment, the catalina.sh file needs to be modifiedIf [-Z "$CATALINA _tmpdir"]; then?# Define the Java.io.

/bin/javaw.exe-vmargs-xms256m-xmx512mInside Eclipse, Window>preferences, then select Java>installedjres to add JRockit and set as default. In this way, you can use JRockit to compile the project.7. Turn off Automatic Updates1.window->perferences->general->startupandshutdown tick off Automaticupdatesscheduler (Automatic Update Scheduler)2.window->perferences->myeclipse->maven4myeclipse hook on enablemaven4myeclipsefeatrures; OK close window; This step is to show the MAVEN node in step 3rd3.window

Tags: shell#!/bin/bash#获取cpu使用率Cpuusage=top -n 1 | awk -F ‘[ %]+‘ ‘NR==3 {print $2}‘#获取磁盘使用率Data_name= "/DEV/VDA1"Diskusage=df -h | grep $data_name | awk -F ‘[ %]+‘ ‘{print $5}‘Logfile=/tmp/jiankong.log#获取内存情况Mem_total=free -m | awk -F ‘[ :]+‘ ‘NR==2{print $2}‘Mem_used=free -m | awk -F ‘[ :]+‘ ‘NR==3{print $3}‘#统计内存使用率Mem_used_persent=awk ‘BEGIN{printf "%.0f\n",(‘$mem_used‘/‘$mem_total‘)*100}‘#获取报警时间Now_time=date ‘+%F %T‘function Send_mail () {Mail-s "Monito