74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
//
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// Tests that mongos validating writes when stale does not DOS config servers
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//
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// Note that this is *unsafe* with broadcast removes and updates
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import {ShardingTest} from "jstests/libs/shardingtest.js";
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var st = new ShardingTest({shards: 2, mongos: 3, other: {rsOptions: {verbose: 2}}});
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var mongos = st.s0;
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var staleMongosA = st.s1;
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var staleMongosB = st.s2;
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var admin = mongos.getDB("admin");
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const kDbName = "foo";
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assert.commandWorked(
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admin.runCommand({enableSharding: kDbName, primaryShard: st.shard1.shardName}));
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var coll = mongos.getCollection(kDbName + ".bar");
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var staleCollA = staleMongosA.getCollection(coll + "");
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var staleCollB = staleMongosB.getCollection(coll + "");
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coll.createIndex({a: 1});
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// Shard the collection on {a: 1} and move one chunk to another shard. Updates need to be across
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// two shards to trigger an error, otherwise they are versioned and will succeed after raising a
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// StaleConfig error.
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st.shardColl(coll, {a: 1}, {a: 0}, {a: 1}, coll.getDB(), true);
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// Let the stale mongos see the collection state
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staleCollA.findOne();
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staleCollB.findOne();
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// Change the collection sharding state
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coll.drop();
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coll.createIndex({b: 1});
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st.shardColl(coll, {b: 1}, {b: 0}, {b: 1}, coll.getDB(), true);
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// Make sure that we can successfully insert, even though we have stale state
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assert.commandWorked(staleCollA.insert({b: "b"}));
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// Change the collection sharding state
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coll.drop();
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coll.createIndex({c: 1});
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st.shardColl(coll, {c: 1}, {c: 0}, {c: 1}, coll.getDB(), true);
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// Make sure we can successfully upsert, even though we have stale state
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assert.commandWorked(staleCollA.update({c: "c"}, {c: "c"}, true));
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// Change the collection sharding state
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coll.drop();
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coll.createIndex({d: 1});
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st.shardColl(coll, {d: 1}, {d: 0}, {d: 1}, coll.getDB(), true);
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// Make sure we can successfully update, even though we have stale state
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assert.commandWorked(coll.insert({d: "d"}));
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assert.commandWorked(staleCollA.update({d: "d"}, {$set: {x: "x"}}, false, false));
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assert.eq(staleCollA.findOne().x, "x");
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assert.eq(staleCollB.findOne().x, "x");
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// Change the collection sharding state
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coll.drop();
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coll.createIndex({e: 1});
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// Deletes need to be across two shards to trigger an error.
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st.shardColl(coll, {e: 1}, {e: 0}, {e: 1}, coll.getDB(), true);
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// Make sure we can successfully remove, even though we have stale state
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assert.commandWorked(coll.insert({e: "e"}));
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assert.commandWorked(staleCollA.remove({e: "e"}, true));
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assert.eq(null, staleCollA.findOne());
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st.stop();
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