Details
Major - P3 Description
The test spawns a parallel shell with the following jstest code evaluated as a --eval argument. (Note the excessive quote escaping is due to this code itself being a string.)
TestData = {
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\"minPort\" : 20020,
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\"maxPort\" : 20249,
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\"peerPids\" : [ ],
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\"alwaysUseLogFiles\" : false,
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\"failIfUnterminatedProcesses\" : true,
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\"isMainTest\" : true,
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\"numTestClients\" : 1,
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\"backupOnRestartDir\" : null,
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\"enableMajorityReadConcern\" : true,
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\"mixedBinVersions\" : \"\",
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\"noJournal\" : false,
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\"storageEngine\" : \"wiredTiger\",
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\"storageEngineCacheSizeGB\" : \"1\",
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\"testName\" : \"merge_stale_on_fields\",
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\"transportLayer\" : \"\",
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\"wiredTigerCollectionConfigString\" : \"\",
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\"wiredTigerEngineConfigString\" : \"\",
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\"wiredTigerIndexConfigString\" : \"\",
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\"inEvergreen\" : true,
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\"setParameters\" : {
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\"featureFlagSBE\" : \"true\",
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\"featureFlagTimeseriesCollection\" : \"true\",
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\"logComponentVerbosity\" : {
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\"replication\" : {
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\"election\" : 4,
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\"heartbeats\" : 2,
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\"initialSync\" : 2,
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\"rollback\" : 2
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},
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\"sharding\" : {
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\"migration\" : 2
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},
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\"storage\" : {
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\"recovery\" : 2
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},
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\"transaction\" : 4,
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\"tenantMigration\" : 4
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},
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\"reshardingMinimumOperationDurationMillis\" : 5000
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},
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\"setParametersMongos\" : {
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\"featureFlagSBE\" : \"true\",
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\"featureFlagTimeseriesCollection\" : \"true\",
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\"logComponentVerbosity\" : {
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\"transaction\" : 3
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}
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},
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\"setParametersMongocryptd\" : {
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},
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\"undoRecorderPath\" : null,
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\"transactionLifetimeLimitSeconds\" : 86400,
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\"traceExceptions\" : undefined
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};
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const source = db.getSiblingDB(\"merge_stale_unique_key\").source;
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const error = assert.throws(() => source.aggregate([
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{$addFields: {sk: \"$_id\"}},
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{$merge: { \"into\" : \"target\", \"whenMatched\" : \"replace\", \"whenNotMatched\" : \"discard\" }} // <---- does not throw
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]));
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assert.eq(error.code, ErrorCodes.StaleEpoch);
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We don't get the expected exception with ErrorCodes.StaleEpoch:
[js_test:merge_stale_on_fields] sh2371| uncaught exception: Error: did not throw exception :
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[js_test:merge_stale_on_fields] sh2371| doassert@src/mongo/shell/assert.js:20:14
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[js_test:merge_stale_on_fields] sh2371| assert.throws@src/mongo/shell/assert.js:577:13
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[js_test:merge_stale_on_fields] sh2371| @(shell eval):57:31
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[js_test:merge_stale_on_fields] sh2371| exiting with code -4
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