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/**
* Tests that the telemetry store can be resized if it is configured, and cannot be resized if it is
* disabled.
*/
(function() {
"use strict";
load("jstests/libs/feature_flag_util.js");
if (FeatureFlagUtil.isEnabled(db, "Telemetry")) {
function testTelemetrySetting(paramName, paramValue) {
// The feature flag is enabled - make sure the telemetry store can be configured.
const original = assert.commandWorked(db.adminCommand({getParameter: 1, [paramName]: 1}));
assert(original.hasOwnProperty(paramName), original);
const originalValue = original[paramName];
try {
assert.doesNotThrow(() => db.adminCommand({setParameter: 1, [paramName]: paramValue}));
// Other tests verify that changing the parameter actually affects the behavior.
} finally {
assert.doesNotThrow(() =>
db.adminCommand({setParameter: 1, [paramName]: originalValue}));
}
}
testTelemetrySetting("internalQueryConfigureTelemetryCacheSize", "2MB");
testTelemetrySetting("internalQueryStatsSamplingRate", 2147483647);
} else {
// The feature flag is disabled - make sure the telemetry store *cannot* be configured.
assert.commandFailedWithCode(
db.adminCommand({setParameter: 1, internalQueryConfigureTelemetryCacheSize: '2MB'}),
7373500);
assert.commandFailedWithCode(
db.adminCommand({setParameter: 1, internalQueryStatsSamplingRate: 2147483647}), 7506200);
}
}());
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