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/**
* verify dropConnections command works for sharded clusters
* @tags: [requires_replication, requires_sharding]
*/
(function() {
"use strict";
const st = new ShardingTest({
config: {nodes: 1},
shards: 1,
rs0: {nodes: 3},
mongos: 1,
});
const mongos = st.s0;
const rst = st.rs0;
const primary = rst.getPrimary();
mongos.adminCommand({multicast: {ping: 0}});
function getConnPoolHosts() {
const ret = mongos.adminCommand({connPoolStats: 1});
assert.commandWorked(ret);
jsTestLog("Connection pool stats by host: " + tojson(ret.hosts));
return ret.hosts;
}
const cfg = primary.getDB('local').system.replset.findOne();
const memberHost = cfg.members[2].host;
assert.eq(memberHost in getConnPoolHosts(), true);
const removedMember = cfg.members.splice(2, 1);
assert.eq(removedMember[0].host, memberHost);
cfg.version++;
jsTestLog("Reconfiguring to omit " + memberHost);
assert.commandWorked(primary.adminCommand({replSetReconfig: cfg}));
assert.eq(memberHost in getConnPoolHosts(), true);
jsTestLog("Dropping connections to " + memberHost);
assert.commandWorked(mongos.adminCommand({dropConnections: 1, hostAndPort: [memberHost]}));
assert.soon(() => {
return !(memberHost in getConnPoolHosts());
});
// need to re-add removed node or test complain about the replset config
cfg.members.push(removedMember[0]);
cfg.version++;
assert.commandWorked(primary.adminCommand({replSetReconfig: cfg}));
st.stop();
})();
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