Re: [ovirt-users] Get CPU and Memory Usage for VM and Host using ovirt java sdk

19 Jun 2015

      On 06/19/2015 11:05 AM, Kumar R, Prashanth (Prashanth) wrote:
...
Hi ,
Yes , I have checked the ovirt java sdk and did not find any methods to "find the CPU and Memory Usage for a VM/Host"
Thanks ,
Prashanth R
Should be something like this:

---8<---
package com.example.sdktest;

import org.ovirt.engine.sdk.Api;
import org.ovirt.engine.sdk.ApiBuilder;
import org.ovirt.engine.sdk.decorators.VM;
import org.ovirt.engine.sdk.decorators.VMStatistic;
import org.ovirt.engine.sdk.entities.Value;

import java.math.BigDecimal;
import java.util.List;

public class Main {
    public static void main(String[] args) throws Exception {
        // Connect to the server:
        Api api = new ApiBuilder()
            .url("https://engine.example.com:443/ovirt-engine/api")
            .user("admin@internal")
            .password("...")
            .noHostVerification(true)
            .debug(false)
            .build();

        try {
            // Find the VM:
            VM vm = api.getVMs().get("myvm");

            // Iterate all the available statistics:
            System.out.println("All statistics:");
            List<VMStatistic> stats = vm.getStatistics().list();
            for (VMStatistic stat : stats) {
                String statName = stat.getName();
                List<Value> statValuesList = stat.getValues().getValues();
                StringBuilder statValuesBuffer = new StringBuilder();
                for (Value statValue : statValuesList) {
                    BigDecimal statDatum = statValue.getDatum();
                    statValuesBuffer.append(statDatum);
                    statValuesBuffer.append(" ");
                }
                String statValues = statValuesBuffer.toString();
                System.out.println(statName + ": " + statValues);
            }
            System.out.println();

            // Get a specific statistic:
            System.out.println("Specific statistic:");
            VMStatistic memoryUsedStat =
vm.getStatistics().get("memory.used");
            List<Value> memoryUsedValuesList =
memoryUsedStat.getValues().getValues();
            StringBuilder memoryUsedValuesBuffer = new StringBuilder();
            for (Value memoryUsedValue : memoryUsedValuesList) {
                BigDecimal memoryUsedDatum = memoryUsedValue.getDatum();
                memoryUsedValuesBuffer.append(memoryUsedDatum);
                memoryUsedValuesBuffer.append(" ");
            }
            String memoryUsed = memoryUsedValuesBuffer.toString();
            System.out.println(memoryUsed);
            System.out.println();
        }
        finally {
            api.close();
        }
    }
}
--->8---

Note that this is using the 3.6 SDK. If you use the 3.5 SDK then the way
to create the "api" object is different:

  Api api = new Api("http://...", "admin@internal", "password");

The rest is the same.
...
-----Original Message-----
From: Jiri Belka [mailto:jbelka@redhat.com] 
Sent: Friday, June 19, 2015 2:32 PM
To: Kumar R, Prashanth (Prashanth)
Cc: users@ovirt.org
Subject: Re: [ovirt-users] Get CPU and Memory Usage for VM and Host using ovirt java sdk
...
1)I would like to know if there is a way to fetch the “CPU and Memory 
Usage for VM “ and CPU and Memory Usage for a Host in the RHEVM 
environment using ovirt sdk in java.
I am using ovirt-engine-sdk-java-3.5.0.5.jar.
Can you please provide me with the java example if possible.
The cpu and memory usage of the VM in the rhevm is as highlighted in 
the picture below.
2) Autostart attribute for a VM in RHEVM.
Earlier when I was using libvirt 0.5.1 jar in a kvm system,I found 
that autostart attribute [vm. getAutostart ] is provided in the libvirt java sdk.
“Autostart is a Boolean value which indicates whether the network is 
configured to
be automatically started when the host machine boots”
Is there any such attribute for a VM in RHEVM,if yes is there a way to 
fetch the auto start value using ovirt java sdk.
Have you checked https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ovirt.org_Java-2Dsdk&d=AwIFaQ&c=BFpWQw8bsuKpl1SgiZH64Q&r=3rKe7gJAcRh5l-S9dbWM0T_MbQbahl-YIetIBtIOxuo&m=o3Wi8S7-3CuBppO1vrwIBRjpQEePuWgan7g6uNRlp4w&s=2b_qM88KOuKM_0KMuNP6jIO1yCqGpIUPoMrxBlON-xw&e=  ?
j.
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Re: [ovirt-users] Get CPU and Memory Usage for VM and Host using ovirt java sdk

Juan Hernández