Webdriver keep on executing the scenarios without terminating the job - protractor

Question

I used the below protractor cucumber multiCapabilities config file to execute my scenarios. While executing the config file, First time Chrome and Firefox got launched and my expected scenario got executed. But after the execution the job not got finished. The webdriver keep on launching the browsers and ending with 0 scenarios / 0 steps / 0m00.000s results. Can anyone help me to handle this situation.
Config file:
exports.config = {
seleniumAddress: "http://localhost:4444/wd/hub",
baseUrl: "https://www.google.co.in/",
multiCapabilities: [
{
browserName: "chrome",
shardTestFiles: true,
maxInstances: 1
},
{
browserName: "firefox",
shardTestFiles: true,
maxInstances: 1
}
],
framework: "custom",
frameworkPath: require.resolve("protractor-cucumber-framework"),
specs: ["../features/*.feature"],
cucumberOpts: {
format: 'json:results.json',
require: ["../stepDefinitions/*.js"],
tags: ['#sample']
}
};
Output:
I/launcher - 2 instance(s) of WebDriver still running
I/testLogger -
------------------------------------
I/testLogger - [chrome #01-0] PID: XXXXX
#Expected scenario got executed
I/launcher - 2 instance(s) of WebDriver still running
I/testLogger -
------------------------------------
I/testLogger - [firefox #11-0] PID: XXXXX
#Expected scenario got executed
I/launcher - 2 instance(s) of WebDriver still running
I/testLogger -
------------------------------------
I/testLogger - [firefox #11-1] PID: XXXXX
[firefox #11-1] 0 scenarios
[firefox #11-1] 0 steps
[firefox #11-1] 0m00.000s
I/launcher - 2 instance(s) of WebDriver still running
I/testLogger -
------------------------------------
I/testLogger - [chrome #01-1] PID: XXXXX
[chrome #01-1] 0 scenarios
[chrome #01-1] 0 steps
[chrome #01-1] 0m00.000s
And the webdriver keep on execution the scenarios until I manually terminate the job.