cloudwatch detailed monitoring

Detailed explanation of iostat commands for real-time IO monitoring in CentOSIntroduction Iostat is mainly used to monitor the IO load of system devices. iostat displays the statistics from the start of the system when it is run for the first time. After iostat is run, statistics from the last run of the command are displayed. You can specify the number and time of statistics to obtain the required statisti

similarities with supermarket queues:r/s+w/s similar to the total number of people who have beenAverage Queue Length (AVGQU-SZ) is similar to the number of average queueing people in a unit timeAverage service time (SVCTM) is similar to the cashier's payment speedAverage wait time (await) is similar to the average wait time per personAverage I/O data (AVGRQ-SZ) is similar to the average number of things each person buysThe I/O operation rate (%util) is similar to the time scale at which a perso

. System Inch Number of interrupts per second, including clock interrupts. Sc The number of context switches per second. The larger the 2 values above, the greater the CPU time that is consumed by the kernel. Cpu us The percentage of user process execution time. This value is higher, which indicates that the user process consumes more CPU time, but we should consider optimizing the

IntroductionMost of the IO statistics tools under Linux, such as Iostat, Nmon, and so on, are only counted to the Per Device's read and write situations, and if you want to know how each process uses IO, it's a bit cumbersome.Iotop is a top class tool used to monitor disk I/O usage. Iotop has a UI similar to top, which includes information about PID, user, I/O, process, and so on.ExampleJust run it straight.IotopThe output is as followsTotal DISK READ: 6.01/s | Total DISK write: 3.85

the process%MEM: The process uses a percentage of memory command: The command to pull up the processIO Case Statistics (-D)With the-D option, we can view the statistics for process IO:linux:~ # pidstat-d 1 2Linux 2.6.32.12-0.7-default (Linux) 06/18/12 _x86_64_17:11:36 PID kb_rd/s kb_wr/s kb_ccwr/s command17:11:37 14579 124988.24 0.00 0.00 dd17:11:37 PID kb_rd/s kb_wr/s kb_ ccwr/s command17:11:38 14579 105441.58 0.

zabbix3.0.4 using Percona-monitoring-plugins plug-ins to monitor the detailed implementation of mysql5.6Because Zabbix's own MySQL monitoring does not provide the key that can be used directly, so generally do not use, the industry's classmates use Percona monitoring Plugins to monitor the way of MySQLPercona has impro

,/application/zabbix-server/share/zabbix/alertscripts/nginx.sh activeuserparameter=nginx.connections.reading,/application/zabbix-server/share/zabbix/alertscripts/ Nginx.shreadinguserparameter=nginx.connections.writing,/application/zabbix-server/share/zabbix/alertscripts/nginx.sh writinguserparameter=nginx.connections.waiting,/application/zabbix-server/share/zabbix/alertscripts/nginx.sh waiting[[emailprotected]alertscripts]#/etc/init.d/zabbix-agentrestartshutting downZabbixagent: [OK]StartingZab

look down when I deploy the Heapster, by looking at the mirror of the Heapster container group to discover:Many people think is the problem of HTTPS or k8s configuration, so go to the flurried to configure the insecure HTTP way, resulting in more and more deep pits, more and more low transparency, it is impossible, I also get a long time, are more than retwist, here omit 10,000 words ... , when these paths have been traveled, re-read the following text:Only to find the issue of permissions, Hea

for garbage collection. But after the collection is complete, these objects still exist, indicating that references to this class have not been released in some places!4. Find out where the Testbean classes are used and do not release themRight-click on the Cn.test.TestBean object to select "Take Heap Snapshot for Selection" and observe its heapNext:Click "OK":Right-click in the class and select "Use Selected Objects" in the menu that appears:The following window appears:Select "Allocations" an

template, the following accessoriesSecond, import the corresponding CPU, IO, hard disk and other performance monitoring template files, enter Perfmon in the run, click the Data Collector = "user-defined, such asRight-click, new Data Collector, select Import from Template, asClick Next, select System performance, click Browser, select the CPU information corresponding to the performance template collector, asClick Finish, you will create a CPU collect

system processing.SVCTM: The average time that the system processes each request, excluding the time consumed in the request queue.%UTIL:I/O requests account for the percentage of the CPU, the higher the ratio, the more saturated the description.1. When the value of Avgqu-sz is low, the equipment utilization is higher.2. When the value of%util is close to 1%, it indicates that the device bandwidth is already full.To determine the system bottleneck, it is sometimes necessary to combine several S

clear document structure and easy management and development. Using events to listen for binding events Another way to bind events is to bind the event listener with either AddEventListener () or attachevent (). The following detailed description, event monitoring. Event Monitoring With regard to event monit