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'use strict';
/**
* collmod.js
*
* Base workload for collMod command.
* Generates some random data and inserts it into a collection with a
* TTL index. Runs a collMod command to change the value of the
* expireAfterSeconds setting to a random integer.
*
* All threads update the same TTL index on the same collection.
*/
var $config = (function() {
var data = {
numDocs: 1000,
maxTTL: 5000 // max time to live
};
var states = (function() {
function collMod(db, collName) {
var newTTL = Random.randInt(this.maxTTL);
var res = db.runCommand({
collMod: this.threadCollName,
index: {keyPattern: {createdAt: 1}, expireAfterSeconds: newTTL}
});
assertAlways.commandWorked(res);
// only assert if new expireAfterSeconds differs from old one
if (res.hasOwnProperty('expireAfterSeconds_new')) {
assertWhenOwnDB.eq(res.expireAfterSeconds_new, newTTL);
}
}
return {collMod: collMod};
})();
var transitions = {collMod: {collMod: 1}};
function setup(db, collName, cluster) {
// other workloads that extend this one might have set 'this.threadCollName'
this.threadCollName = this.threadCollName || collName;
var bulk = db[this.threadCollName].initializeUnorderedBulkOp();
for (var i = 0; i < this.numDocs; ++i) {
bulk.insert({createdAt: new Date()});
}
var res = bulk.execute();
assertAlways.commandWorked(res);
assertAlways.eq(this.numDocs, res.nInserted);
// create TTL index
res = db[this.threadCollName].createIndex({createdAt: 1}, {expireAfterSeconds: 3600});
assertAlways.commandWorked(res);
}
return {
threadCount: 10,
iterations: 20,
data: data,
startState: 'collMod',
states: states,
transitions: transitions,
setup: setup
};
})();
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