e2e4c75844
This commit is part of the overall change to enable continuous config server stepdown and it includes improvements to logging and test validation. It does not actually enable the stepdown thread.
90 lines
2.8 KiB
JavaScript
90 lines
2.8 KiB
JavaScript
//
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// Tests pending chunk metadata.
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//
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(function() {
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"use strict";
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var st = new ShardingTest({ shards: 2, mongos: 2, other: { separateConfig: true } });
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var mongos = st.s0;
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var admin = mongos.getDB('admin');
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var shards = mongos.getCollection('config.shards').find().toArray();
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var coll = mongos.getCollection('foo.bar');
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var ns = coll.getFullName();
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var dbName = coll.getDB().getName();
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var shard0 = st.shard0, shard1 = st.shard1;
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assert.commandWorked(admin.runCommand({enableSharding: dbName}));
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printjson(admin.runCommand({movePrimary: dbName, to: shards[0]._id}));
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assert.commandWorked(admin.runCommand({shardCollection: ns, key: {_id: 1}}));
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jsTest.log('Moving some chunks to shard1...');
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assert.commandWorked(admin.runCommand({split: ns, middle: {_id: 0}}));
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assert.commandWorked(admin.runCommand({split: ns, middle: {_id: 1}}));
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assert.commandWorked(admin.runCommand({moveChunk: ns,
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find: {_id: 0},
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to: shards[1]._id,
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_waitForDelete: true}));
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assert.commandWorked(admin.runCommand({moveChunk: ns,
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find: {_id: 1},
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to: shards[1]._id,
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_waitForDelete: true}));
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function getMetadata(shard) {
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var admin = shard.getDB('admin'),
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metadata = admin.runCommand({
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getShardVersion: ns, fullMetadata: true
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}).metadata;
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jsTest.log('Got metadata: ' + tojson(metadata));
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return metadata;
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}
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var metadata = getMetadata(shard1);
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assert.eq(metadata.pending[0][0]._id, 1);
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assert.eq(metadata.pending[0][1]._id, MaxKey);
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jsTest.log('Moving some chunks back to shard0 after empty...');
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assert.commandWorked(admin.runCommand({moveChunk: ns,
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find: {_id: -1},
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to: shards[1]._id,
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_waitForDelete: true}));
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metadata = getMetadata(shard0);
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assert.eq(metadata.shardVersion.t, 0);
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assert.neq(metadata.collVersion.t, 0);
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assert.eq(metadata.pending.length, 0);
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assert.commandWorked(admin.runCommand({moveChunk: ns,
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find: {_id: 1},
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to: shards[0]._id,
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_waitForDelete: true}));
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metadata = getMetadata(shard0);
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assert.eq(metadata.shardVersion.t, 0);
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assert.neq(metadata.collVersion.t, 0);
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assert.eq(metadata.pending[0][0]._id, 1);
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assert.eq(metadata.pending[0][1]._id, MaxKey);
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// The pending chunk should be promoted to a real chunk when shard0 reloads
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// its config.
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jsTest.log('Checking that pending chunk is promoted on reload...');
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assert.eq(null, coll.findOne({_id: 1}));
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metadata = getMetadata(shard0);
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assert.neq(metadata.shardVersion.t, 0);
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assert.neq(metadata.collVersion.t, 0);
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assert.eq(metadata.chunks[0][0]._id, 1);
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assert.eq(metadata.chunks[0][1]._id, MaxKey);
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st.printShardingStatus();
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st.stop();
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})()
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