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//
// Testing migrations are successful with secondaryThrottle.
//
(function() {
"use strict";
// The mongod secondaries are set to priority 0 and votes 0 to prevent the primaries
// from stepping down during migrations on slow evergreen builders.
var s = new ShardingTest({ shards: 2,
other: {
chunkSize: 1,
rs0: {
nodes: [
{rsConfig: {votes: 1}},
{rsConfig: {priority: 0, votes: 0}},
],
},
rs1: {
nodes: [
{rsConfig: {votes: 1}},
{rsConfig: {priority: 0, votes: 0}},
],
}
} });
var db = s.getDB( "test" );
var bulk = db.foo.initializeUnorderedBulkOp();
for (var i = 0; i < 2100; i++) {
bulk.insert({ _id: i, x: i });
}
assert.writeOK(bulk.execute());
s.adminCommand( { enablesharding : "test" } );
s.ensurePrimaryShard('test', 'test-rs0');
s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
for ( i=0; i<20; i++ )
s.adminCommand( { split : "test.foo" , middle : { _id : i * 100 } } );
assert.eq( 2100, db.foo.find().itcount() );
var coll = db.foo;
coll.setSlaveOk();
var serverName = s.getServerName( "test" );
var other = s.config.shards.findOne( { _id : { $ne : serverName } } );
for ( i=0; i<20; i++ ) {
// Needs to waitForDelete because we'll be performing a slaveOk query,
// and secondaries don't have a chunk manager so it doesn't know how to
// filter out docs it doesn't own.
assert(s.adminCommand({ moveChunk: "test.foo",
find: { _id: i * 100 },
to : other._id,
_secondaryThrottle: true,
writeConcern: { w: 2 },
_waitForDelete: true }));
assert.eq( 2100, coll.find().itcount() );
}
s.stop();
}());
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