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// This test creates a sharded collection with wiredtiger options.
// When the chunks of this collection get migrated to the other shard,
// the other shard should create the collection with the same options.
var st = new ShardingTest({shards: 2});
var db = st.s.getDB("test");
var coll = db.sharding_system_namespaces;
// This test relies on the wiredTiger storage engine being compiled
// into the server. Must check shard member for WT as it is not built into mongos.
var storageEngines = st.shard0.getDB("local").serverBuildInfo().storageEngines;
print("Supported storage engines: " + storageEngines);
if (Array.contains(storageEngines, "wiredTiger")) {
function checkCollectionOptions(database) {
var collectionsInfos = database.getCollectionInfos();
printjson(collectionsInfos);
var info = collectionsInfos.filter(function(c) {
return c.name == "sharding_system_namespaces";
})[0];
assert.eq(info.options.storageEngine.wiredTiger.configString, "block_compressor=zlib");
}
db.createCollection("sharding_system_namespaces",
{storageEngine: {wiredTiger: {configString: "block_compressor=zlib"}}});
checkCollectionOptions(db);
assert.commandWorked(db.adminCommand({enableSharding: 'test'}));
st.ensurePrimaryShard('test', st.shard1.shardName);
assert.commandWorked(db.adminCommand({shardCollection: coll + '', key: {x: 1}}));
coll.insert({x: 0});
coll.insert({x: 10});
assert.commandWorked(db.adminCommand({split: coll + '', middle: {x: 5}}));
st.printShardingStatus();
var primaryShard = st.getPrimaryShard("test");
anotherShard = st.getOther(primaryShard);
assert.commandWorked(
db.adminCommand({movechunk: coll + '', find: {x: 5}, to: anotherShard.name}));
st.printShardingStatus();
checkCollectionOptions(anotherShard.getDB("test"));
} else {
print("Skipping test. wiredTiger engine not supported by mongod binary.");
}
st.stop();
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