1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
// Validates the remove/drain shard functionality when there is data on the shard being removed
(function() {
'use strict';
var st = new ShardingTest({name: "remove_shard3", shards: 2, mongos: 2});
assert.commandWorked(st.s0.adminCommand({enableSharding: 'TestDB'}));
st.ensurePrimaryShard('TestDB', 'shard0000');
assert.commandWorked(st.s0.adminCommand({shardCollection: 'TestDB.Coll', key: {_id: 1}}));
assert.commandWorked(st.s0.adminCommand({split: 'TestDB.Coll', middle: {_id: 0}}));
// Insert some documents and make sure there are docs on both shards
st.s0.getDB('TestDB').Coll.insert({_id: -1, value: 'Negative value'});
st.s0.getDB('TestDB').Coll.insert({_id: 1, value: 'Positive value'});
assert.commandWorked(st.s0.adminCommand(
{moveChunk: 'TestDB.Coll', find: {_id: 1}, to: 'shard0001', _waitForDelete: true}));
// Make sure both mongos instances know of the latest metadata
assert.eq(2, st.s0.getDB('TestDB').Coll.find({}).toArray().length);
assert.eq(2, st.s1.getDB('TestDB').Coll.find({}).toArray().length);
// Remove shard0001
var removeRes;
removeRes = assert.commandWorked(st.s0.adminCommand({removeShard: 'shard0001'}));
assert.eq('started', removeRes.state);
removeRes = assert.commandWorked(st.s0.adminCommand({removeShard: 'shard0001'}));
assert.eq('ongoing', removeRes.state);
// Move the one chunk off shard0001
assert.commandWorked(st.s0.adminCommand(
{moveChunk: 'TestDB.Coll', find: {_id: 1}, to: 'shard0000', _waitForDelete: true}));
// Remove shard must succeed now
removeRes = assert.commandWorked(st.s0.adminCommand({removeShard: 'shard0001'}));
assert.eq('completed', removeRes.state);
// Make sure both mongos instance refresh their metadata and do not reference the missing shard
assert.eq(2, st.s0.getDB('TestDB').Coll.find({}).toArray().length);
assert.eq(2, st.s1.getDB('TestDB').Coll.find({}).toArray().length);
st.stop();
})();
|
