4ec5842d77
dbStats don't support readConcern since database metadata in the server are not synchronized with the snapshots. This makes the listDatabase command in mongos to send listDatabase instead with primaryPreferred and without the readConcern option. This also changed the listDatabase behavior to not include the config or admin in the result if they don't actually exist.
62 lines
2.0 KiB
JavaScript
62 lines
2.0 KiB
JavaScript
// tests that listDatabases doesn't show config db on a shard, even if it is there
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var test = new ShardingTest({shards: 1, mongos: 1, other: {chunksize:1}})
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var mongos = test.s0
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var mongod = test.shard0;
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//grab the config db instance by name
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var getDBSection = function (dbsArray, dbToFind) {
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for(var pos in dbsArray) {
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if (dbsArray[pos].name && dbsArray[pos].name === dbToFind)
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return dbsArray[pos];
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}
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return null;
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};
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var dbInConfigEntryCheck = function(dbEntry) {
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assert.neq(null, dbEntry);
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assert(!dbEntry.shards); // db should not be in shard.
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assert.neq(null, dbEntry.sizeOnDisk);
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assert.eq(false, dbEntry.empty);
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};
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assert.writeOK(mongos.getDB("blah").foo.insert({ _id: 1 }));
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assert.writeOK(mongos.getDB("foo").foo.insert({ _id: 1 }));
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assert.writeOK(mongos.getDB("raw").foo.insert({ _id: 1 }));
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//verify that the config db is not on a shard
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var res = mongos.adminCommand("listDatabases");
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var dbArray = res.databases;
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dbInConfigEntryCheck(getDBSection(dbArray, "config"));
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// Should not have admin entry if it doesn't exists.
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var adminSection = getDBSection(dbArray, 'admin');
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assert(!adminSection);
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// add doc in admin db on the config server.
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mongos.getDB('admin').test.insert({ _id: 1 });
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res = mongos.adminCommand("listDatabases");
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dbArray = res.databases;
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dbInConfigEntryCheck(getDBSection(dbArray, "config"));
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dbInConfigEntryCheck(getDBSection(dbArray, 'admin'));
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//add doc in config/admin db on the shard
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mongod.getDB("config").foo.insert({_id:1})
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mongod.getDB("admin").foo.insert({_id:1})
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//add doc in admin db (via mongos)
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mongos.getDB("admin").foo.insert({_id:1})
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//verify that the config db is not on a shard
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res = mongos.adminCommand("listDatabases");
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dbArray = res.databases;
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//check config db
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assert(getDBSection(dbArray, "config"), "config db not found! 2")
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assert(!getDBSection(dbArray, "config").shards, "config db is on a shard! 2")
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//check admin db
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assert(getDBSection(dbArray, "admin"), "admin db not found! 2")
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assert(!getDBSection(dbArray, "admin").shards, "admin db is on a shard! 2")
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test.stop()
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