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//
// Tests that stale mongoses can properly move chunks.
//
var st = new ShardingTest({shards: 2, mongos: 2});
var admin = st.s0.getDB('admin');
var testDb = 'test';
var testNs = 'test.foo';
var shards = st.getShardNames();
assert.commandWorked(admin.runCommand({enableSharding: testDb}));
st.ensurePrimaryShard(testDb, shards[0]);
assert.commandWorked(admin.runCommand({shardCollection: testNs, key: {_id: 1}}));
var curShardIndex = 0;
for (var i = 0; i < 100; i += 10) {
assert.commandWorked(st.s0.getDB('admin').runCommand({split: testNs, middle: {_id: i}}));
st.configRS.awaitLastOpCommitted(); // Ensure that other mongos sees the split
var nextShardIndex = (curShardIndex + 1) % shards.length;
assert.commandWorked(st.s1.getDB('admin').runCommand({
moveChunk: testNs,
find: {_id: i + 5},
to: shards[nextShardIndex],
_waitForDelete: true
}));
curShardIndex = nextShardIndex;
st.configRS.awaitLastOpCommitted(); // Ensure that other mongos sees the move
}
st.stop();
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