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/**
* Ensures that if the config servers are blackholed from the point of view of MongoS, metadata
* operations do not get stuck forever.
*
* Checking UUID consistency involves talking to config servers through mongos, but mongos is
* blackholed from the config servers in this test.
*/
TestData.skipCheckingUUIDsConsistentAcrossCluster = true;
(function() {
'use strict';
var st = new ShardingTest({
shards: 2,
mongos: 1,
useBridge: true,
});
var testDB = st.s.getDB('BlackHoleDB');
assert.commandWorked(testDB.adminCommand({enableSharding: 'BlackHoleDB'}));
assert.commandWorked(
testDB.adminCommand({shardCollection: testDB.ShardedColl.getFullName(), key: {_id: 1}}));
assert.writeOK(testDB.ShardedColl.insert({a: 1}));
jsTest.log('Making all the config servers appear as a blackhole to mongos');
st._configServers.forEach(function(configSvr) {
configSvr.discardMessagesFrom(st.s, 1.0);
});
assert.commandWorked(testDB.adminCommand({flushRouterConfig: 1}));
// This shouldn't stall
jsTest.log('Doing read operation on the sharded collection');
assert.throws(function() {
testDB.ShardedColl.find({}).maxTimeMS(15000).itcount();
});
// This should fail, because the primary is not available
jsTest.log('Doing write operation on a new database and collection');
assert.writeError(st.s.getDB('NonExistentDB')
.TestColl.insert({_id: 0, value: 'This value will never be inserted'},
{maxTimeMS: 15000}));
st.stop();
}());
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