65 lines
2.6 KiB
JavaScript
65 lines
2.6 KiB
JavaScript
/**
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* Refine shard key currently only changes the epoch and does not change the major/minor versions
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* in the chunks. This test simulates a stepDown in the middle of making changes to the
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* config.cache collections by the ShardServerCatalogCacheLoader after a refine shard key and makes
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* sure that the shard will be able to eventually reach the valid state on config.cache.
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*/
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(function() {
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'use strict';
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let st = new ShardingTest({shards: 1});
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let testDB = st.s.getDB('test');
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assert.commandWorked(st.s.adminCommand({enableSharding: 'test'}));
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st.ensurePrimaryShard('test', st.shard0.shardName);
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assert.commandWorked(st.s.adminCommand({shardCollection: 'test.user', key: {x: 1}}));
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assert.commandWorked(st.s.adminCommand({split: 'test.user', middle: {x: 0}}));
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assert.commandWorked(st.s.adminCommand({split: 'test.user', middle: {x: 10}}));
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assert.commandWorked(testDB.user.insert({x: 1, y: 1}));
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assert.commandWorked(testDB.user.insert({x: 10, y: 1}));
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testDB.user.createIndex({x: 1, y: 1});
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let priConn = st.rs0.getPrimary();
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assert.commandWorked(
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priConn.adminCommand({_flushRoutingTableCacheUpdates: 'test.user', syncFromConfig: true}));
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let collEntry = st.config.collections.findOne({_id: 'test.user'});
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let chunksCollName = "cache.chunks.test.user";
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let chunkCache = priConn.getDB('config').getCollection(chunksCollName);
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let preRefineChunks = chunkCache.find().toArray();
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assert.eq(3, preRefineChunks.length);
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assert.commandWorked(st.s.adminCommand({refineCollectionShardKey: 'test.user', key: {x: 1, y: 1}}));
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// Force refresh the config.cache.collections and config.cache.chunks, then manually revert
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// the config.cache.chunks to simulate crash before updating config.cache.chunks.
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assert.commandWorked(priConn.adminCommand({_flushRoutingTableCacheUpdates: 'test.user'}));
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assert.commandWorked(chunkCache.remove({}, false /* justOne */));
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preRefineChunks.forEach((chunk) => {
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assert.commandWorked(chunkCache.insert(chunk));
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});
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let collCache = priConn.getDB('config').cache.collections;
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assert.commandWorked(collCache.update({_id: 'test.user'}, {$set: {refreshing: true}}));
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// Force refresh should be able to detect anomaly and fix the cache collections.
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assert.commandWorked(priConn.adminCommand({_flushRoutingTableCacheUpdates: 'test.user'}));
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let fixedChunks = chunkCache.find().sort({min: 1}).toArray();
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assert.eq(3, fixedChunks.length);
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assert.eq({x: MinKey, y: MinKey}, fixedChunks[0]._id);
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assert.eq({x: 0, y: MinKey}, fixedChunks[1]._id);
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assert.eq({x: 10, y: MinKey}, fixedChunks[2]._id);
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let collDoc = collCache.findOne({_id: 'test.user'});
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assert.eq(false, collDoc.refreshing);
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st.stop();
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}());
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