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/**
* Verify that killing an instance of mongod while it is in a long running computation or infinite
* loop still leads to clean shutdown, and that said shutdown is prompt.
*
* For our purposes, "prompt" is defined as "before stopMongod() decides to send a SIGKILL", which
* would not result in a zero return code.
*/
var baseName = "jstests_disk_killall";
var dbpath = MongoRunner.dataPath + baseName;
var mongod = MongoRunner.runMongod({dbpath: dbpath});
var db = mongod.getDB("test");
var collection = db.getCollection(baseName);
assert.commandWorked(collection.insert({}));
// set timeout for js function execution to 100 ms to speed up the test.
assert.commandWorked(
db.adminCommand({setParameter: 1, internalQueryJavaScriptFnTimeoutMillis: 100}));
var awaitShell = startParallelShell(
"db." + baseName + ".count( { $where: function() { while( 1 ) { ; } } } )", mongod.port);
sleep(1000);
/**
* 0 == mongod's exit code on Windows, or when it receives TERM, HUP or INT signals. On UNIX
* variants, stopMongod sends a TERM signal to mongod, then waits for mongod to stop. If mongod
* doesn't stop in a reasonable amount of time, stopMongod sends a KILL signal, in which case mongod
* will not exit cleanly. We're checking in this assert that mongod will stop quickly even while
* evaling an infinite loop in server side js.
*/
var exitCode = MongoRunner.stopMongod(mongod);
assert.eq(0, exitCode, "got unexpected exitCode");
// Waits for shell to complete
exitCode = awaitShell({checkExitSuccess: false});
assert.neq(0, exitCode, "expected shell to exit abnormally due to mongod being terminated");
mongod = MongoRunner.runMongod(
{port: mongod.port, restart: true, cleanData: false, dbpath: mongod.dbpath});
db = mongod.getDB("test");
collection = db.getCollection(baseName);
assert(collection.stats().ok);
assert(collection.drop());
MongoRunner.stopMongod(mongod);
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