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/**
* Explicitly validates that all shards' collections have the correct UUIDs after an initial split
* which spreads the collection across all available shards.
*/
(function() {
'use strict';
load("jstests/libs/uuid_util.js");
load("jstests/sharding/libs/find_chunks_util.js");
let st = new ShardingTest({shards: 2});
let mongos = st.s0;
assert.commandWorked(mongos.adminCommand({enableSharding: 'test'}));
st.ensurePrimaryShard('test', st.shard1.shardName);
assert.commandWorked(
mongos.adminCommand({shardCollection: 'test.user', key: {x: 'hashed'}, numInitialChunks: 2}));
// Ensure that all the pending (received chunks) have been incorporated in the shard's filtering
// metadata so they will show up in the getShardVersion command
assert.eq(0, mongos.getDB('test').user.find({}).itcount());
st.printShardingStatus();
function checkMetadata(metadata) {
jsTestLog(tojson(metadata));
assert.eq(1, metadata.chunks.length);
// Check that the single chunk on the shard's metadata is a valid chunk (getShardVersion
// represents chunks as an array of [min, max])
let chunks = metadata.chunks;
assert(bsonWoCompare(chunks[0][0], chunks[0][1]) < 0);
}
// Check that the shards' in-memory catalog caches were refreshed
checkMetadata(assert
.commandWorked(st.rs0.getPrimary().adminCommand(
{getShardVersion: 'test.user', fullMetadata: true}))
.metadata);
checkMetadata(assert
.commandWorked(st.rs1.getPrimary().adminCommand(
{getShardVersion: 'test.user', fullMetadata: true}))
.metadata);
// Check that the shards' catalogs have the correct UUIDs
const collEntry = mongos.getDB("config").collections.findOne({_id: 'test.user'});
const shard0UUID = getUUIDFromListCollections(st.shard0.getDB('test'), 'user');
const shard1UUID = getUUIDFromListCollections(st.shard1.getDB('test'), 'user');
assert.eq(collEntry.uuid, shard0UUID);
assert.eq(collEntry.uuid, shard1UUID);
// Check that the shards' on-disk caches have the correct number of chunks
assert.commandWorked(
st.shard0.adminCommand({_flushRoutingTableCacheUpdates: 'test.user', syncFromConfig: false}));
assert.commandWorked(
st.shard1.adminCommand({_flushRoutingTableCacheUpdates: 'test.user', syncFromConfig: false}));
const chunksOnConfigCount = findChunksUtil.countChunksForNs(st.config, 'test.user');
assert.eq(2, chunksOnConfigCount);
const chunksCollName = "cache.chunks.test.user";
const chunksOnShard0 = st.shard0.getDB("config").getCollection(chunksCollName).find().toArray();
const chunksOnShard1 = st.shard1.getDB("config").getCollection(chunksCollName).find().toArray();
assert.eq(chunksOnConfigCount, chunksOnShard0.length);
assert.eq(chunksOnConfigCount, chunksOnShard1.length);
assert.eq(chunksOnShard0, chunksOnShard1);
st.stop();
})();
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