116 lines
3.3 KiB
JavaScript
116 lines
3.3 KiB
JavaScript
//
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// Tests what happens when a replica set primary goes down with pooled connections.
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//
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(function() {
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"use strict";
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var st = new ShardingTest({shards : {rs0 : {nodes : 2}}, mongos : 1});
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// Stop balancer to eliminate weird conn stuff
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st.stopBalancer();
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var mongos = st.s0;
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var coll = mongos.getCollection("foo.bar");
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var db = coll.getDB();
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//Test is not valid for Win32
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var is32Bits = ( db.serverBuildInfo().bits == 32 );
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if ( is32Bits && _isWindows() ) {
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// Win32 doesn't provide the polling interface we need to implement the check tested here
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jsTest.log( "Test is not valid on Win32 platform." );
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}
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else {
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// Non-Win32 platform
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var primary = st.rs0.getPrimary();
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var secondary = st.rs0.getSecondary();
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jsTest.log("Creating new connections...");
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// Create a bunch of connections to the primary node through mongos.
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// jstest ->(x10)-> mongos ->(x10)-> primary
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var conns = [];
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for ( var i = 0; i < 50; i++) {
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conns.push(new Mongo(mongos.host));
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conns[i].getCollection(coll + "").findOne();
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}
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jsTest.log("Returning the connections back to the pool.");
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for ( var i = 0; i < conns.length; i++ ) {
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conns[i] = null;
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}
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// Make sure we return connections back to the pool
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gc();
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// Don't make test fragile by linking to format of shardConnPoolStats, but this is useful if
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// something goes wrong.
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var connPoolStats = mongos.getDB("admin").runCommand({ shardConnPoolStats : 1 });
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printjson( connPoolStats );
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jsTest.log("Stepdown primary and then step back up...");
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var stepDown = function(node, timeSecs) {
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var result = null;
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try {
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result = node.getDB("admin").runCommand({ replSetStepDown : timeSecs, force : true });
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// Should not get here
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} catch (e) {
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printjson(e);
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}
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if (result != null) printjson(result);
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assert.eq(null, result);
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}
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stepDown(primary, 0);
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jsTest.log("Waiting for mongos to acknowledge stepdown...");
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ReplSetTest.awaitRSClientHosts( mongos,
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secondary,
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{ ismaster : true },
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st.rs0,
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2 * 60 * 1000 ); // slow hosts can take longer to recognize sd
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jsTest.log("Stepping back up...");
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stepDown(secondary, 10000);
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jsTest.log("Waiting for mongos to acknowledge step up...");
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ReplSetTest.awaitRSClientHosts( mongos,
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primary,
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{ ismaster : true },
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st.rs0,
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2 * 60 * 1000 );
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jsTest.log("Waiting for socket timeout time...");
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// Need to wait longer than the socket polling time.
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sleep(2 * 5000);
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jsTest.log("Run queries using new connections.");
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var numErrors = 0;
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for ( var i = 0; i < conns.length; i++) {
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var newConn = new Mongo(mongos.host);
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try {
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printjson(newConn.getCollection("foo.bar").findOne());
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} catch (e) {
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printjson(e);
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numErrors++;
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}
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}
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assert.eq(0, numErrors);
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} // End Win32 check
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jsTest.log("DONE!");
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st.stop();
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}()); |