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// Test that mongoS accepts --timeZoneInfo <timezoneDBPath> as a command-line argument and that an
// aggregation pipeline with timezone expressions executes correctly on mongoS.
(function() {
const tzGoodInfo = "jstests/libs/config_files/good_timezone_info";
const tzBadInfo = "jstests/libs/config_files/bad_timezone_info";
const tzNoInfo = "jstests/libs/config_files/missing_directory";
const st = new ShardingTest({
shards: 2,
mongos: {s0: {timeZoneInfo: tzGoodInfo}},
rs: {nodes: 1, timeZoneInfo: tzGoodInfo}
});
const mongosDB = st.s0.getDB(jsTestName());
const mongosColl = mongosDB[jsTestName()];
assert.commandWorked(mongosDB.dropDatabase());
// Confirm that the timeZoneInfo command-line argument has been set on mongoS.
const mongosCfg = assert.commandWorked(mongosDB.adminCommand({getCmdLineOpts: 1}));
assert.eq(mongosCfg.parsed.processManagement.timeZoneInfo, tzGoodInfo);
// Test that a bad timezone file causes mongoS startup to fail.
let conn = MongoRunner.runMongos({configdb: st.configRS.getURL(), timeZoneInfo: tzBadInfo});
assert.eq(conn, null, "expected launching mongos with bad timezone rules to fail");
assert.neq(-1, rawMongoProgramOutput().search(/Fatal assertion.*40475/));
// Test that a non-existent timezone directory causes mongoS startup to fail.
conn = MongoRunner.runMongos({configdb: st.configRS.getURL(), timeZoneInfo: tzNoInfo});
assert.eq(conn, null, "expected launching mongos with bad timezone rules to fail");
// Look for either old or new error message
assert(rawMongoProgramOutput().includes("Error creating service context") ||
rawMongoProgramOutput().includes("Failed to create service context"));
// Enable sharding on the test DB and ensure its primary is st.shard0.shardName.
assert.commandWorked(mongosDB.adminCommand({enableSharding: mongosDB.getName()}));
st.ensurePrimaryShard(mongosDB.getName(), st.rs0.getURL());
// Shard the test collection on _id.
assert.commandWorked(
mongosDB.adminCommand({shardCollection: mongosColl.getFullName(), key: {_id: 1}}));
// Split the collection into 2 chunks: [MinKey, 0), [0, MaxKey).
assert.commandWorked(mongosDB.adminCommand({split: mongosColl.getFullName(), middle: {_id: 0}}));
// Move the [0, MaxKey) chunk to st.shard1.shardName.
assert.commandWorked(mongosDB.adminCommand(
{moveChunk: mongosColl.getFullName(), find: {_id: 1}, to: st.rs1.getURL()}));
// Write a document containing a 'date' field to each chunk.
assert.commandWorked(mongosColl.insert({_id: -1, date: ISODate("2017-11-13T12:00:00.000+0000")}));
assert.commandWorked(mongosColl.insert({_id: 1, date: ISODate("2017-11-13T03:00:00.000+0600")}));
// Constructs a pipeline which splits the 'date' field into its constituent parts on mongoD,
// reassembles the original date on mongoS, and verifies that the two match. All timezone
// expressions in the pipeline use the passed 'tz' string or, if absent, default to "GMT".
function buildTimeZonePipeline(tz) {
// We use $const here so that the input pipeline matches the format of the explain output.
const tzExpr = {$const: (tz || "GMT")};
return [
{$addFields: {mongodParts: {$dateToParts: {date: "$date", timezone: tzExpr}}}},
{$_internalSplitPipeline: {mergeType: "mongos"}},
{
$addFields: {
mongosDate: {
$dateFromParts: {
year: "$mongodParts.year",
month: "$mongodParts.month",
day: "$mongodParts.day",
hour: "$mongodParts.hour",
minute: "$mongodParts.minute",
second: "$mongodParts.second",
millisecond: "$mongodParts.millisecond",
timezone: tzExpr
}
}
}
},
{$match: {$expr: {$eq: ["$date", "$mongosDate"]}}}
];
}
// Confirm that the pipe splits at '$_internalSplitPipeline' and that the merge runs on mongoS.
let timeZonePipeline = buildTimeZonePipeline("GMT");
const tzExplain = assert.commandWorked(mongosColl.explain().aggregate(timeZonePipeline));
assert.eq(tzExplain.splitPipeline.shardsPart, [timeZonePipeline[0]]);
assert.eq(tzExplain.splitPipeline.mergerPart, timeZonePipeline.slice(1));
assert.eq(tzExplain.mergeType, "mongos");
// Confirm that both documents are output by the pipeline, demonstrating that the date has been
// correctly disassembled on mongoD and reassembled on mongoS.
assert.eq(mongosColl.aggregate(timeZonePipeline).itcount(), 2);
// Confirm that aggregating with a timezone which is not present in 'good_timezone_info' fails.
timeZonePipeline = buildTimeZonePipeline("Europe/Dublin");
assert.eq(assert.throws(() => mongosColl.aggregate(timeZonePipeline)).code, 40485);
st.stop();
})();
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