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/**
* Test that a replica set member can process basic CRUD operations after switching from being
* a shardsvr and back to non shardsvr.
* @tags: [requires_persistence]
*/
(function() {
"use strict";
load('jstests/sharding/libs/remove_shard_util.js');
// TODO SERVER-50144 Remove this and allow orphan checking.
// This test calls removeShard which can leave docs in config.rangeDeletions in state "pending",
// therefore preventing orphans from being cleaned up.
TestData.skipCheckOrphans = true;
var NUM_NODES = 3;
/**
* Checks that basic CRUD operations work as expected. Expects the collection to have a
* { _id: 'marker' } document.
*/
var checkBasicCRUD = function(coll) {
var doc = coll.findOne({_id: 'marker', y: {$exists: false}});
assert.neq(null, doc);
assert.commandWorked(coll.update({_id: 'marker'}, {$set: {y: 2}}));
assert.eq(2, coll.findOne({_id: 'marker'}).y);
assert.commandWorked(coll.remove({_id: 'marker'}));
assert.eq(null, coll.findOne({_id: 'marker'}));
assert.commandWorked(coll.insert({_id: 'marker'}, {writeConcern: {w: NUM_NODES}}));
assert.eq('marker', coll.findOne({_id: 'marker'})._id);
};
const numShards = TestData.configShard ? 1 : 0;
var st = new ShardingTest({shards: numShards});
var replShard = new ReplSetTest({nodes: NUM_NODES});
replShard.startSet({verbose: 1});
replShard.initiate();
var priConn = replShard.getPrimary();
// Starting a brand new replica set without '--shardsvr' will cause the FCV to be written as the
// latest available for that binary. This poses a problem when this test is run in the mixed
// version suite because mongos will be 'last-lts' and if this node is of the latest binary,
// it will report itself as the 'latest' FCV, which would cause mongos to refuse to connect to
// it and shutdown.
//
// In order to work around this, in the mixed version suite, be pessimistic and always set this
// node to the 'last-lts' FCV
if (jsTestOptions().shardMixedBinVersions) {
assert.commandWorked(priConn.adminCommand({setFeatureCompatibilityVersion: lastLTSFCV}));
replShard.awaitReplication();
}
assert.commandWorked(priConn.getDB('test').unsharded.insert({_id: 'marker'}));
checkBasicCRUD(priConn.getDB('test').unsharded);
assert.commandWorked(priConn.getDB('test').sharded.insert({_id: 'marker'}));
checkBasicCRUD(priConn.getDB('test').sharded);
for (var x = 0; x < NUM_NODES; x++) {
replShard.restart(x, {
shardsvr: '',
});
}
replShard.awaitNodesAgreeOnPrimary();
assert.commandWorked(st.s.adminCommand({addShard: replShard.getURL()}));
checkBasicCRUD(st.s.getDB('test').unsharded);
checkBasicCRUD(st.s.getDB('test').sharded);
assert.commandWorked(st.s.adminCommand({enableSharding: 'test'}));
assert.commandWorked(st.s.adminCommand({shardCollection: 'test.sharded', key: {_id: 1}}));
checkBasicCRUD(st.s.getDB('test').unsharded);
checkBasicCRUD(st.s.getDB('test').sharded);
for (x = 0; x < 4; x++) {
assert.commandWorked(st.s.getDB('test').sharded.insert({_id: x}));
assert.commandWorked(st.s.adminCommand({split: 'test.sharded', middle: {_id: x}}));
}
let newShard =
new ReplSetTest({name: "toRemoveLater", nodes: NUM_NODES, nodeOptions: {shardsvr: ""}});
newShard.startSet();
newShard.initiate();
assert.commandWorked(st.s.adminCommand({addShard: newShard.getURL(), name: 'toRemoveLater'}));
for (x = 0; x < 2; x++) {
assert.commandWorked(
st.s.adminCommand({moveChunk: 'test.sharded', find: {_id: x}, to: 'toRemoveLater'}));
}
checkBasicCRUD(st.s.getDB('test').unsharded);
checkBasicCRUD(st.s.getDB('test').sharded);
// Start the balancer to start draining the chunks.
st.startBalancer();
removeShard(st, 'toRemoveLater');
newShard.stopSet();
checkBasicCRUD(st.s.getDB('test').unsharded);
checkBasicCRUD(st.s.getDB('test').sharded);
st.stop();
jsTest.log('About to restart repl w/o shardsvr');
replShard.nodes.forEach(function(node) {
delete node.fullOptions.shardsvr;
});
replShard.restart(replShard.nodes);
replShard.awaitNodesAgreeOnPrimary();
priConn = replShard.getPrimary();
checkBasicCRUD(priConn.getDB('test').unsharded);
checkBasicCRUD(priConn.getDB('test').sharded);
replShard.stopSet();
})();
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