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/**
* Checks that the mongos cluster server parameter refresh job runs as expected.
*
* @tags: [
* # Requires all nodes to be running at least 6.1.
* requires_fcv_61,
* featureFlagClusterWideConfigM2,
* does_not_support_stepdowns,
* requires_replication,
* requires_sharding
* ]
*/
(function() {
'use strict';
function runTest(st, startupRefreshIntervalMS) {
// First, check that the mongos logs a refresh attempt within the first refreshIntervalMS
// milliseconds that finds no documents on the config servers.
const conn = st.s0;
const errorMarginMS = 5000;
const startupRefreshIntervalRelaxedMS = startupRefreshIntervalMS + errorMarginMS;
checkLog.containsRelaxedJson(
conn, 6226403, {clusterParameterDocuments: []}, 1, startupRefreshIntervalRelaxedMS);
// Set a cluster parameter to a different value and then wait.
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testIntClusterParameter: {intData: 2022}}}));
// Check that the newly set parameter is refreshed within the interval.
checkLog.containsRelaxedJson(
conn,
6226403,
{clusterParameterDocuments: [{_id: "testIntClusterParameter", intData: 2022}]},
1,
startupRefreshIntervalRelaxedMS);
// Set another cluster parameter and check that only the updated parameter is refreshed within
// the interval.
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testStrClusterParameter: {strData: "welcome"}}}));
checkLog.containsRelaxedJson(
conn,
6226403,
{clusterParameterDocuments: [{_id: "testStrClusterParameter", strData: "welcome"}]},
1,
startupRefreshIntervalRelaxedMS);
// Shorten the refresh interval by half and verify that the next setClusterParameter update
// is seen within the new interval.
const newRefreshIntervalMS = startupRefreshIntervalMS / 2;
const newRefreshIntervalSecs = newRefreshIntervalMS / 1000;
const newRefreshIntervalRelaxedMS = newRefreshIntervalMS + errorMarginMS;
assert.commandWorked(conn.adminCommand(
{setParameter: 1, clusterServerParameterRefreshIntervalSecs: newRefreshIntervalSecs}));
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testIntClusterParameter: {intData: 2025}}}));
checkLog.containsRelaxedJson(
conn,
6226403,
{clusterParameterDocuments: [{_id: "testIntClusterParameter", intData: 2025}]},
1,
newRefreshIntervalRelaxedMS);
// Restart the mongos and check that it refreshes both of the parameters that have documents on
// the config server.
st.restartMongos(0);
checkLog.containsRelaxedJson(conn,
6226403,
{
clusterParameterDocuments: [
{_id: "testIntClusterParameter", intData: 2025},
{_id: "testStrClusterParameter", strData: "welcome"}
]
},
1,
newRefreshIntervalRelaxedMS);
// Check that single parameter updates are caught as expected after restart. Note that the
// startup refresh interval is used since runtime setParameter updates are not persisted.
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testStrClusterParameter: {strData: "goodbye"}}}));
checkLog.containsRelaxedJson(
conn,
6226403,
{clusterParameterDocuments: [{_id: "testStrClusterParameter", strData: "goodbye"}]},
1,
startupRefreshIntervalRelaxedMS);
// Finally, check that multiple setClusterParameter invocations within a single refresh cycle
// are captured and updated.
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testIntClusterParameter: {intData: 2028}}}));
assert.commandWorked(
conn.adminCommand({setClusterParameter: {testBoolClusterParameter: {boolData: true}}}));
checkLog.containsRelaxedJson(conn,
6226403,
{
clusterParameterDocuments: [
{_id: "testIntClusterParameter", intData: 2028},
{_id: "testBoolClusterParameter", boolData: true}
]
},
1,
startupRefreshIntervalRelaxedMS);
}
// Test with default clusterServerParameterRefreshIntervalSecs at startup.
let options = {
mongos: 1,
config: 1,
shards: 3,
rs: {
nodes: 3,
},
mongosOptions: {
setParameter: {
logLevel: 3,
},
},
};
let st = new ShardingTest(options);
runTest(st, 30000);
st.stop();
// Test with non-default clusterServerParameterRefreshIntervalSecs at startup.
options = {
mongos: 1,
config: 1,
shards: 3,
rs: {
nodes: 3,
},
mongosOptions: {
setParameter: {
logLevel: 3,
clusterServerParameterRefreshIntervalSecs: 20,
},
},
};
st = new ShardingTest(options);
runTest(st, 20000);
st.stop();
})();
|
